NDP708B中文资料

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H708-H708B规格书V1.2(固定600mA充电电流带反接保护充电管理芯片)

SXH708SXH708SXH708SXH708高端单节锂电池充电管理芯片600mA 带锂电池反接保护充电芯片描述是一款完整的单节锂离子电池采用恒定电流/恒定电压线性充电器。

采用SOT-23-6封装与较少的外部元件数目使得成为便携式应用的理想选择。

可以适合 U SB 电源和适配器电源工作。

由于采用了内部 PMOSFET 架构，加上防倒充电路，所以不需要外部隔离二极管。

热反馈可对充电电流进行自动调节，以便在大功率操作或高温条件下对芯片温度加以限制。

充电电压固定于 4.25V 。

当充电电流在达到最终浮充电压之后降至100mA 时，将自动终止充电循环。

当输入电压（交流适配器或 USB 电源）被拿掉时，自动进入一个低电流状态，将电池漏电流降至 2uA 以下。

在有电源时也可置于停机模式，以将供电电流降至 55uA 。

的其他特点包括欠压闭锁、自动再充电和两个用于指示充电、结束的 L ED 状态引脚。

特点·具有电池反接保护功能 ·600mA 的充电电流·无需 M OSFET 、检测电阻器或隔离二极管 ·用于单节锂离子电池线性充电器·恒定电流/恒定电压操作，并具有可在无过热危险的情况下实现充电速率最大化的热调节功能·精度达到±1%的 4.25V 预设充电电压 ·用于电池电量检测的充电电流监控器输出 ·自动再充电·充电状态双输出和故障状态显示 ·100mA 充电终止·待机模式下的供电电流为 55uA ·2.9V 涓流充电·软启动限制了浪涌电流 ·电池温度监测功能 ·采用 S OT23-6 封装绝对最大额定值·输入电源电压（V CC ）：-0.3V ～5.5V · BAT ：-0.3V ～5.5V ·LEDR ：-0.3V ～5.5V ·LEDG ：-0.3V ～5.5V·BAT 短路持续时间：连续 ·BAT 引脚电流：600mA ·最大结温：145℃·工作环境温度范围：-40℃～85℃ ·贮存温度范围：-65℃～125℃·引脚温度（焊接时间 10秒）：260℃SXH708SXH708SXH708SXH708高端单节锂电池充电管理芯片典型应用原理图2SXH708 SXH708电特性引脚功能内部框图工作原理SXH708高端单节锂电池充电管理芯片SOT23-6封装尺寸说明SXH708。

DIN7081水位计硼硅酸盐玻璃中文标准

0 −1.5 +0.2 − 0.8
± 0.5
6.2 形状公差
l ≤ 165 165 < l ≤ 220
l > 220
表 5：平面度 e
e = 0.05 e = 0.08 e = 0.13
单位：mm
7 试验生产厂按第 3、4、5 和 6 章检验性能并通过第 8 章的标识证实符合有关的条件。
7.1 定性压应力在按 7.2.1 和 7.2.2 进行抽样和试验之前，应垂直于玻璃边平整的玻璃表面，查看多个明显不
7.3 耐温度冲击试验
按 7.2 的抽样方案进行抽样。加热至 250℃，再将其浸入保持在 20℃下的水浴中，历时至少
1 min，检查是否断裂。
7.4 尺寸检查
按 ISO 2859-1，以验收质量水平 AQL 10 检查试样的尺寸(长度、宽度、厚度、平直度和平行
度)。拟按 7.1、7.2 和 7.3 进行试验的试样可用于此检查。
凭裸眼可见的节点、明显条印和流挂条主要只允许在平板玻璃的纵向、不得位于横向。
4.4.3 晶体夹杂
玻璃上可能存在的晶体夹杂的直径不得大于 0.5 mm 且夹杂数量，每块平板玻璃不得多于 3
个。
5 表面特性 − 钢化处理(见 4.1 和附录 A)； − 两面必须光亮或经抛光； − 密封面经打磨或抛光； − 边缘光亮和/或经打磨、可由生产厂选择； − 倒边、玻璃倒角或经打磨，可由生产厂选择。由于加工的原因，玻璃板的倒边 1.5°，这时必须测量最大宽度 b 和最大长度 l，详见图 4.
标注
[1] V.Novotny，I.Kavka: 钢化玻璃的应力释放，玻璃技术，第 18 卷，第 5 期，1977 年 10 月 [2] H.Jebsen-Marwedel，R,Brueckner：玻璃加工缺陷，施普林根出版社，柏林、海德堡，纽约

MAX708R中文资料

12 __________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600 12 © 2001 Maxim Integrated Pristered trademark of Maxim Integrated Products.
MAX706P/R/S/T, MAX708R/S/T
_________________________________________________________________________________________________________ 11
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+3V Voltage Monitoring, Low-Cost, µP Supervisory Circuits
Package Information
The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to /packages.)
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Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.

YL-708-B型火灾自动报警及消防联动控制系统实训指导手册

Y L-708-B型火灾自动报警及消防联动控制系统实训指导手册(总71页)--本页仅作为文档封面，使用时请直接删除即可----内页可以根据需求调整合适字体及大小--亚龙YL-708-B型火灾自动报警及消防联动控制系统实践指导手册中国·亚龙科技集团有限公司浙江亚龙教育装备股份有限公司目录一、设备概述............................................. 错误!未定义书签。

二、模块外型与尺寸....................................... 错误!未定义书签。

三、主体配置............................................. 错误!未定义书签。

四、实验内容............................................ 错误!未定义书签。

五、实训项目............................................ 错误!未定义书签。

六、项目实训............................................. 错误!未定义书签。

1.708-B-A型中心监控主机模块........................ 错误!未定义书签。

（1）设备概述 ...................................... 错误!未定义书签。

（2）控制中心配置清单 .............................. 错误!未定义书签。

（3）火灾报警主机控制器接线端子说明 ................ 错误!未定义书签。

2.708-B-B型探测报警模块............................. 错误!未定义书签。

（1）设备概述 ...................................... 错误!未定义书签。

NDP1A NDP2 新版样本(suoxiao)

03 03 03 03 04 05 06 06 08 08
02
NDP1A系列配电箱
适用范围
适用于户内、交流50Hz或60Hz、额定工作电压至440V、通常不超过35℃偶尔会达到60℃的环境下，用来为断路器、开关、插座等电器附件提供对外部影响(例如机械冲击、液体物质的入侵等)的防护。
符合标准
产品符合IEC 670、GB 17466；并通过CCC认证。
图1 NDP1A-8（B）～20（B）
图2 NDP1A-24(B)～36(B)
B A B A
90
C
111
D
90
C
D
111
10. 订货须知
本产品为客户提供了多种形式的需求，订货时请注明。标准箱标准式无敲落孔和接地柱，订货型号如：NDP1A-8 有敲落孔型号后说明，订货型号如：NDP1A-8（敲落孔）有接地柱型号后说明，订货型号如：NDP1A-8（接地柱）有敲落孔和接地柱型号后说明，订货型号如：NDP1A-8（敲落孔+接地柱）底箱深度可根据客户要求特殊订做，订货型号如NDP1A-8（敲落孔+接地柱，底箱深度为100mm）面盖套件可单独订货，订货型号如NDP1A-8（面盖套件）说明：特殊要求的配电箱供货周期根据情况而定
8+8 12+8
15+15
地排孔数 8 12 16 16
30 8 12 16 16
30 8 12 16 16
30 8 12 16 16
30
敲落孔无无Βιβλιοθήκη 有有接地柱无有有无
配电箱形式
标准箱标准式正常商务
12
NDP2-9
NDP2-12
NDP2-16

NDB4050中文资料

Symbol Parameter Conditions Min Typ Max Units DRAIN-SOURCE AVALANCHE RATINGS (Note 1) W DSS IAR BVDSS IDSS IGSSF IGSSR VGS(th) RDS(ON) ID(on) gFS Ciss Coss Crss tD(on) tr tD(off) tf Qg Qgs Qgd Single Pulse Drain-Source Avalanche Energy Maximum Drain-Source Avalanche Current VDD = 25 V, ID = 15 A 40 15 mJ A
Note: 1. Pulse Test: Pulse Width < 300 µs, Duty Cycle < 2.0%.
NDP4050 Rev. B
元器件交易网
Typical Electrical Characteristics
30 2
V GS = 2 0 V
I D , DRAIN-SOURCE CURRENT (A)
OFF CHARACTERISTICS Drain-Source Breakdown Voltage Zero Gate Voltage Drain Current VGS = 0 V, ID = 250 µA VDS = 50 V, VGS = 0 V TJ = 125°C Gate - Body Leakage, Forward Gate - Body Leakage, Reverse VGS = 20 V, VDS = 0 V VGS = -20 V, VDS= 0 V VDS = VGS, ID = 250 µA TJ = 125°C Static Drain-Source On-Resistance VGS = 10 V, ID = 7.5 A TJ = 125°C On-State Drain Current Forward Transconductance VGS = 10 V, VDS = 10 V VDS = 10 V, ID = 7.5 A VDS = 25, VGS = 0 V, f = 1.0 MHz 15 3 5.7 2 1.4 3 2.4 0.078 0.12 50 250 1 100 -100 V µA mA nA nA

电梯调试手册-708A B5

电梯调试手册（适用MPK708/A/AC系统）电梯调试手册（Q/BLT 2008-2012）本手册所阐述的内容仅提供给博林特电梯有限公司调试、维保人员经培训合格后使用。

为了您个人及他人的安全，请勿执行您无资格执行和没有认证的工艺步骤。

本手册包括的所有图纸和信息属沈阳博林特电梯有限公司财产，不能任意直接或间接地传播、公开、并损坏沈阳博林特电梯有限公司的利益。

本手册严禁以任何理由私自复印，若调试人员离开本公司，应及时将资料交还沈阳博林特电梯有限公司。

调试人员在调试前应仔细阅读本手册，调试过程严格按照本手册程序执行。

在调试过程中应穿着电工绝缘鞋、工作服等防护衣物，并应保证在每个现场至少有一套调试工具。

本手册适用于采用MPK708A控制系统的乘客电梯电气调试，适用于控制柜、曳引机、编码器在出厂时进行了配套调试工作的电梯系统。

本手册需要配套以下文件使用：1、门机系统的调试标准见《门机使用手册》。

2、《电气安装手册》（编号BLT-Q20120112）。

3、《电梯标准参数设置》（由软件和配套整梯梯速参数表组成）。

电梯安全关系重大，因此要求每位调试人员工作认真仔细，决不放过任何疑点或进行危险操作！在调试过程中发现问题可以及时与电气设计室联系。

电话:86-24-25162795编制：王威校对：于春梅一、主控制器显示和菜单设定：（1）、显示如果稳压电源G1、G2的输出正确。

主控制器显示操作主页：按一下Enter键，将进入到主控制器的主界面中：以下是左下角状态的对应说明：自动（AUTO）检测（TEST）消防（FIRE）地震（SEISM）司机（MANUAL）满载（FULLY）超载（OVER）轻载（LIGHT）自学习（LEARNNING）锁梯（LOCK）以下是右下角状态的对应说明：开门（OPEN）关门（CLOSE）（2）、菜单在主界面中，按一下Enter键即可以进入选择主菜单的模式，例如：菜单序号中：第一位数字表示主菜单，第二位数字表示主菜单下的相应子菜单。

SP708中文资料

Part Number
SP705 SP706 SP707 SP708 SP813L SP813M
RESET Threshold
RESET Active
Manual RESET
4.65 V 4.40 V 4.65 V 4.40 V 4.65 V 4.40V
LOW LOW LOW and HIGH LOW and HIGH HIGH HIGH
Continuous Power Dissipation Plastic DIP (derate 9.09mW/°C above +70°C)727mW SO (derate 5.88mW/°C above +70°C) ...... 471mW Mini SO (derate 4.10mW/°C above +70°C) 330mW
V -0.3V to +6.0V cc ....................................................................................... All Other Inputs (Note 1) ......... -0.3V to (Vcc+0.3V)
YES YES YES YES YES YES
Watchdog
YES YES NO NO YES YES
PFI Accuracy
4% 4% 4% 4% 4% 4%
SP705DS/09
SP705 Low Power Microprocessor Supervisory Circuits
1
© Copyright 2000 Sipex Corporation
Storage Temperature Range ....... -65°C to +160°C

ADM708中文资料

RESET & WATCHDOG TIMEBASE
RESET GENERATOR
RESET
ADM705/ ADM706
POWER-FAIL OUTPUT (PFO)
*VOLTAGE REFERENCE = 4.65V (ADM705), 4.40V (ADM706)
VCC 250␮A MR VCC 4.65V* POWER-FAIL INPUT (PFI) 1.25V RESET GENERATOR RESET RESET
The ADM705–ADM708 are low cost µP supervisory circuits. They are suitable for monitoring the 5 V power supply/battery and can also monitor microprocessor activity. The ADM705/ADM706 provide the following functions: 1. Power-On Reset output during power-up, power-down and brownout conditions. The RESET output remains operational with VCC as low as 1 V. 2. Independent watchdog timeout, WDO, that goes low if the watchdog input has not been toggled within 1.6 seconds. 3. A 1.25 V threshold detector for power-fail warning, low battery detection or to monitor a power supply other than 5 V. 4. An active low debounced manual reset input (MR). The ADM707/ADM708 differ in that: 1. A watchdog timer function is not available. 2. An active high reset output in addition to the active low output is available.

厦门宇电仪表708

关于仪表的维修：仪表可提供自产品出厂日起3年的免费维修，凡需要返修的仪表，务必请写明故障现象及原因，以保证能获得正确而全面的修复。
6
1.3 DIN 导轨安装型仪表
若选用DIN 导轨安装方式的E5面板，仪表无数字显示，通过仪表内部拨码开关来设置波特率和地址两个参数。仪表通常需要安装一个RS485通讯接口，利用与上位计算机或触摸屏连接来完成其功能及操作。
～～
AI 系列人工智能调节器
（适合温度、压力、流量、液位、湿度……的精确控制）
使用说明书
（V7.0）
1 概叙
1.1 主要特点
●输入采用数字校正系统，内置常用热电偶和热电阻非线性校正表格，测量精度高达0.2级。 ●采用先进的AI人工智能调节算法，无超调，具备自整定（AT）功能。 ●采用先进的模块化结构，提供丰富的输出规格，能广泛满足各种应用场合的需要，交货迅速且维护方便。 ●人性化设计的操作方法，易学易用。 ●全球通用的100~240VAC输入范围开关电源或24VDC电源供电，并具备多种外型尺寸供客户选择。 ●通过新的2000版ISO9001质量认证，品质可靠。 ●产品经第三方权威机构检测获得CE认证标志，抗干扰性能符合在严酷工业条件下电磁兼容（EMC）的要求。
1
1.2 型号定义
AI系列仪表硬件采用了先进的模块化设计，具备5 个功能模块插座：辅助输入、主输出、报警、辅助输出及通讯。模块可以与仪表一起购买也可以分别购买，自由组合。电阻和线性电压（电流）。AI系列人工智能调节仪表共由8部分组成，例如：
AI－808 A N X3 L5 N S4 — 24VDC
关于校准维护：本仪表是采用自动调零及数字校准技术的免维护型仪表，无需校准维护。计量检定时若超差，通常对仪表内部进行清洁及干燥即可解决问题，万一干燥和清洁无法恢复精度，应将此仪表视同故障仪表送回厂方检修。

AD708中文资料

CONNECTION DIAGRAMSTO-99 (H) PackagePlastic (N ), and Cerdip (Q) PackagesREV.BInformation furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.aUltralow Offset VoltageDual Op Amp AD708One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.Tel: 617/329-4700Fax: 617/326-8703FEATURESVery High DC Precision30 ␮V max Offset Voltage0.3 ␮V/؇C max Offset Voltage Drift0.35 ␮V p-p max Voltage Noise (0.1 Hz to 10 Hz)5 Million V/V min Open Loop Gain 130 dB min CMRR 120 dB min PSRRMatching Characteristics30 ␮V max Offset Voltage Match0.3 ␮V/؇C max Offset Voltage Drift Match 130 dB min CMRR Match Single Version: AD707Available in 8-Pin Plastic Mini-DIP,Hermetic Cerdip and TO-99 Metal CanPackages, Chips and /883B Parts Available.PRODUCT DESCRIPTIONThe AD708 is a very high precision, dual monolithic operational amplifier. Each amplifier individually offers excellent dc precision with the best available max offset voltage and offset voltage drift of any dual bipolar op amp. In addition, the matching specifica-tions are the best available in any dual op amp.The AD708 sets a new standards for dual precision op amps by providing 5 V/µV min open loop gain and guaranteed max input voltage noise of 350 nV p-p (0.1 Hz to 10 Hz). All dc specifica-tions show excellent stability over temperature, with offset voltage drift typically 0.1 µV/°C and input bias current drift of 25 pA/°C max. Both CMRR (130 dB min) and PSRR (120 dB min) are an order of magnitude improved over any available single monolithic op amp except the AD707.The AD708 is available in four performance grades. TheAD708J is rated over the commercial temperature range of 0°C to +70°C and jis available in a plastic mini-DIP package. The AD708A and AD708B are rated over the industrial temperature range of –40°C to +85°C and are available in a cerdip and TO-99 package. The AD708S is rated over the military temperature range of –55°C to +125°C and is available in cerdip and TO-99packages. Military versions are available processed to MIL-STD-883B, Rev. C.APPLICATION HIGHLIGHTS1.The combination of outstanding matching and individual specifications make the AD708 ideal for constructing high gain, precision instrumentation amplifiers.2.The low offset voltage drift and low noise of the AD708allows the designer to amplify very small signals without sacrificing overall system performance.3.The AD708’s 10 V/µV typical open loop gain and 140 dB common-mode rejection make it ideal for precision applications.4.Unmounted dice are available for hybrid circuit applications.5.The AD708 is an improved replacement for the LT1002.AD708–SPECIFICATIONS(@ +25؇C and ؎15 V dc, unless otherwise noted)AD708J/A AD708B AD708SModel Conditions Min Typ Max Min Typ Max Min Typ Max Units INPUT OFFSET VOLTAGE130100550530µVT MIN to T MAX5015015651550µV Drift0.3 1.00.10.40.10.3µV/°C Long Term Stability0.30.30.3µV/Month INPUT BIAS CURRENT 1.0 2.50.5 1.00.51nAT MIN to T MAX 2.0 4.0 1.0 2.0 1.04nA Average Drift154010251030pA/°C OFFSET CURRENT V CM = 0 V0.5 2.00.1 1.00.11nAT MIN to T MAX 2.0 4.00.2 1.50.2 1.5nA Average Drift260125125pA/°C MATCHING CHARACTERISTICS2Offset Voltage805030µVT MIN to T MAX1507550µV Offset Voltage Drift 1.00.40.3µV/°C Input Bias Current 4.0 1.0 1.0nAT MIN to T MAX 5.0 2.0 2.0nA Common-Mode Rejection120140130140130140dBT MIN to T MAX110130130dB Power Supply Rejection110120120dBT MIN to T MAX110120120dB Channel Separation135140140dB INPUT VOLTAGE NOISE0.1 Hz to 10 Hz0.230.60.230.60.230.35µV p-pf = 10 Hz10.31810.31210.312nV/√Hzf = 100 Hz10.013.010.011.010.011nV/√Hzf = 1 kHz9.611.09.611.09.611nV/√Hz INPUT CURRENT NOISE0.1 Hz to 10 Hz143514351435pA p-pf = 10 Hz0.320.90.320.80.320.8pA/√Hzf = 100 Hz0.140.270.140.230.140.23pA/√Hzf = 1 kHz0.120.180.120.170.120.17pA/√Hz COMMON-MODEREJECTION RATIO V CM = ±13 V120140130140130140dBT MIN to T MAX120140130140130140dB OPEN-LOOP GAIN V O = ±10 VR LOAD≥ 2 kΩ310510410V/µVT MIN to T MAX31051047V/µV POWER SUPPLYREJECTION RATIO V S = ±3 V to ±18 V110130120130120130dBT MIN to T MAX110130120130120130dB FREQUENCY RESPONSEClosed Loop Bandwidth0.50.90.50.90.50.9MHz Slew Rate0.150.30.150.30.150.3V/µs INPUT RESISTANCEDifferential60200200MΩCommon Mode200400400GΩOUTPUT VOLTAGE R LOAD≥ 10 kΩ13.51413.514.013.514±VR LOAD≥ 2 kΩ12.513.012.513.012.513±VR LOAD≥ 1 kΩ12.012.512.012.512.012.5±VR LOAD≥ 2 kΩT MIN to T MAX12.013.012.013.012.013±V OPEN-LOOP OUTPUTRESISTANCE606060Ω–2–REV. BAD708J/A AD708B AD708SModel Conditions Min Typ Max Min Typ Max Min Typ Max Units POWER SUPPLYQuiescent Current 4.5 5.5 4.5 5.5 4.5 5.5mA Power Consumption V S = ±15 VNo Load135165135165135165mWV S = ±3 V121812181218mW Operating Range±3±18±3±18±3±18V NOTES1Input offset voltage specifications are guaranteed after 5 minutes of operation at TA = +25°C.2Matching is defined as the difference between parameters of the two amplifiers.All min and max specifications are guaranteed. Specifications in boldface are tested on all production units at final electrical test. Results from those tests are used to calculate outgoing quality levels.Specifications subject to change without notice.ABSOLUTE MAXIMUM RATINGS1Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .±22 V Internal Power Dissipation2Input Voltage3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .±V S Output Short Circuit Duration . . . . . . . . . . . . . . . . Indefinite Differential Input Voltage . . . . . . . . . . . . . . . . . . +V S and –V S Storage Temperature Range (Q, H) . . . . . . . –65°C to +150°C Storage Temperature Range (N) . . . . . . . . . –65°C to +125°C Lead Temperature Range (Soldering 60 sec) . . . . . . . . +300°C NOTES1Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.2Thermal Characteristics8-Pin Plastic Package:θJC = 33°C/Watt, θJA = 100°C/Watt8-Pin Cerdip package:θJC = 30°C/Watt, θJA = 110°C/Watt8-Pin Metal Can Package:θJC = 65°C/Watt, θJA = 150°C/Watt.3For supply voltages less than ±22 V, the absolute maximum input voltage is equal to the supply voltage.METALIZATION PHOTOGRAPH Dimensions shown in inches and (mm).Contact factory for latest dimensions.REV. B–3–AD708ORDERING GUIDETemperature Package Package Model Range Description Option* AD708JN0°C to +70°C8-Pin Plastic DIP N-8AD708AQ–40°C to +85°C8-Pin Cerdip Q-8AD708BQ–40°C to +85°C8-Pin Cerdip Q-8AD708SQ–55°C to +125°C8-Pin Cerdip Q-8AD708AH–40°C to +85°C8-Pin Header H-08A AD708BH–40°C to +85°C8-Pin Header H-08A AD708SH–55°C to +125°C8-Pin Header H-08A AD708SH/883B–55°C to +125°C8-Pin Header H-08A AD708J Grade Chips0°C to +70°C DieAD708S Grade Chips–55°C to +125°C Die*N = Plastic DIP; Q = Cerdip; H = Hermetic Metal Can.REV. B–4–(V S= ؎15 V and T A= +25؇C unless otherwise noted)AD708–Typical CharacteristicsAD708πREV. B –5–REV. B–6–Figure 24.Crosstalk with No Load Figure 26.Crosstalk under Forced Source and Sink ConditionsFigure 25.Crosstalk with 2k Ω LoadFigure 20.Typical Distribution of InputBias Current MatchCrosstalk from Thermal Effects of Power DissipationAD708–Matching CharacteristicsFigure 19.Typical Distribution of Offset Voltage Drift Match Figure 18.Typical Distribution of Offset Voltage Match Figure 21.Typical Distribution of Input Offset Current Match Figure 22.PSRR Match vs.Temperature Figure 23.CMRR Match vs.TemperatureAD708REV. B–7–CROSSTALK PERFORMANCE OF THE AD708The AD708 exhibits very low crosstalk as shown in Figures 24,25 and 26. Figure 24 shows the offset voltage induced in side B of the AD708 when side A’s output is moving slowly (0.2 Hz)from –10 V to +10 V under no load. This is the least stressful situation to the part since the overall power in the chip does not change; only the location of the power in the output devices changes. Figure 25 shows side B’s input offset voltage change when side A is driving a 2k Ω load. Here the power is being changed in the chip with the maximum power change occurring at ±7.5 V. Figure 26 shows crosstalk under the most severe conditions. Side A is connected as a follower with 0 V input,and is now forced to sink and source ±5 mA of output current (Power = (30 V) (5 mA) = 150 mW). Even this large change in power causes only an 8µV (linear) change in side B’s input offset voltage.OPERATION WITH A GAIN OF –100To show the outstanding dc precision of the AD708 in realapplication, Table I shows an error budget calculation for a gain of –100 configuration shown in Figure 27.Table I.Maximum Error ContributionA V = 100 (S Grade)Error Sources (Full Scale:V OUT = 10 V, V IN = 100 mV)V OS 30 µV/100 mV= 300 ppm I OS(100 k Ω)(1 nA)/10 V = 10ppm Gain (2 k Ω load)10 V/(5*106))/100 mV = 20 ppm Noise 0.35µV/100mV = 4 ppm V OS Drift(0.3µV/°C)/100 mV= 3 ppm/°C = 334 ppm +3 ppm/°CTotal Unadjusted Error@ 25°C= 334 ppm > 11 Bits –55°C to +125°C = 634 ppm > 10 Bits With OffsetCalibrated Out@ 25°C= 34 ppm > 14 Bits –55°C to +125°C= 334 ppm > 11 BitsFigure 27. Gain of –100 ConfigurationThis error budget assumes no error in the resistor ratio and no error from power supply variation (the 120 dB minimum PSRR of the AD708S makes this a good assumption). The external resistors can cause gain error from mismatch and drift over temperature.High Precision Programmable Gain AmplifierThe three op amp programmable gain amplifier shown in Figure 28 takes advantage of the outstanding matching characteristics of the AD708 to achieve high dc precision. The gains of the circuit Figure 28.Precision PGAare controlled by the select lines, A0 and A1 of the AD7502multiplexer, and are 1, 10, 100 and 1000 in this design.The input stage attains very high dc precision due to the 30µV maximum offset voltage match of the AD708S and the 1 nA maximum input bias current match. The accuracy is maintained over temperature because of the ultralow drift performance of the AD708. The output stage uses an AD707J and well matched resistors configured as a precision subtracter.To achieve 0.1% gain accuracy, along with high common-mode rejection, the circuit should be trimmed as follows:To maximize common-mode rejection:1.Set the select lines for Gain = 1 and ground V INB .2.Apply a precision dc voltage to V INA and trim R A until V O = –V INA to the required precision.3.Next connect V INB to V INA and apply an input voltage equal to the full-scale common-mode expected.4.Trim R B until V O = 0 V.To minimize gain errors:1.Select Gain = 10 with the control lines and apply a differential input voltage.2.Adjust the 100Ω potentiometer such that V O = 10V IN (adjust V IN magnitude as necessary).3.Repeat for Gain = 100 and Gain = 1000, adjusting 1k Ω and 10k Ω potentiometers, respectively.The design shown should allow for 0.1% gain accuracy and 0.1µV/V common-mode rejection when ±1% resistors and ±5%potentiometers are used.BRIDGE SIGNAL CONDITIONERThe AD708 can be used in the circuit in Figure 29 to produce an accurate and inexpensive dynamic bridge conditioner. The low offset voltage match and low offset voltage drift match of the AD708 combine to achieve circuit performance better than all but the best instrumentation amplifiers. The AD708’s out-standing specs: open loop gain, input offset currents and low input bias currents, do not limit circuit accuracy.AD708REV. B–8–C 1252a –10–2/91P R I N T E D I N U .S .A .As configured, the circuit only requires a gain resistor, R G , of suitable accuracy and a stable, accurate voltage reference. The transfer function is:V O = V REF [∆R/(R+∆R)][R G /R]and the only significant errors due to the AD708S are:V OS out = (V OS match)(2R G /R) = 30 mVV OS out(T) = (V OS drift)(2R G /R) = 0.3 mV/°C To achieve high accuracy, the resistor R G should be 0.1% orbetter and have a low drift coefficient.Figure 29.Bridge Signal Conditioning CircuitFigure 30.Precision Absolute Value CircuitPRECISION ABSOLUTE VALUE CIRCUITThe AD708 is ideally suited to the precision absolute value circuit shown in Figure 30. The low offset voltage match of the AD708 enables this circuit to accurately resolve the input signal.In addition, the tight offset voltage drift match maintains the resolution of the circuit over the full military temperature range.The AD708’s high dc open loop gain and exceptional gain linearity allows the circuit to perform well at both large and small signal levels.In this circuit, the only significant dc errors are due to the offset voltage of the two ampliliers, the input offset current match of the amplifiers, and the mismatch of the resistors. Errors associ-ated with the AD708S contribute less than 0.001% error over –55°C to +125°C.Maximum error at 25°C30µV +10k Ω()1nA ()10V =40µV /10V =4ppm Maximumerror at +125°C or –55°C50µV +2nA ()10k Ω()10V =7ppm @+125°CFigure 31 shows V OUT vs. V IN for this circuit with a ±3mVinput signal at 0.05Hz. Note that the circuit exhibits very low offset at the zero crossing. This circuit can also produce V OUT =–|V IN | by reversing the polarity of the two diodes.Figure 31.Absolute Value Circuit Performance (Input Signal = 0.05 Hz)SELECTION OF PASSIVE COMPONENTSTo takc full advantagc of thc high precision and low driftcharacteristics of the AD708, high quality passive components must be used. Discrete resistors and resistor networks with temperature coefficients of less than 10 ppm/°C are available from Vishay, Caddock, PRP and others.OUTLINE DIMENSIONSDimensions shown in inches and (mm).TO-99 (H) PackageCerdip (Q) PackageMini-DIP (N) Package。

ASM708RCSA中文资料

October 2003rev 1.03/3.3/4.0 V µP Supervisor CircuitsASM706 P/ R/ S/ T/ J ASM708 R/ S/ T/ JGeneral DescriptionThe ASM706P/R/S/T/J and ASM708R/S/T/J are cost effective CMOS supervisor circuits that monitor power-supply and battery voltage level, and µP/µC operation.The family offers several functional options. Each device generates a reset signal during power-up, power-down and during brownout conditions. A reset is generated when the supply drops below 2.63V (ASM706P/R, ASM708R), 2.93V (ASM706S, ASM708S), 3.08V (ASM706T, ASM708T) or 4.00(ASM706J, ASM708J). In addition, the ASM706P/R/S/T/J feature a 1.6 second watchdog timer. The watchdog timer output will trigger a reset if connected to MR. Floating the WDI input pin disables the watchdog timer.The ASM708R/S/T/J have both active-HIGH and active-LOW reset outputs but no watchdog function. The ASM706P has the same pin-out and functions as the ASM706R but has an active-HIGH reset output.A versatile power-fail circuit, useful in checking battery levels and non-5V supplies, has a 1.25V threshold. All devices have a manual reset input. All devices are available in 8-pin DIP , SO and the compact MicroSO packages. The MicroSO package requires 50% less PC board area than the conventional SO package.Features•Precision power supply minotor•2.63V threshold (ASM706P/R, ASM708R)•2.93V threshold (ASM706S, ASM708S)•3.08V threshold (ASM706T, ASM708T)•New 4.00V threshold (ASM706J , ASM708J)•Debounced manual reset input•Auxiliary voltage monitor comparator •1.25V threshold•Battery monitor / auxiliary supply monitor •Watchdog timer (ASM706P/R/S/T/J)•Watchdog can be disabled by floating WDI •200ms reset time delay •Three reset signal options •Active HIGH: ASM706P •Active LOW: ASM706R/S/T/J•Active HIGH and LOW outputs: ASM708R/S/T/J •DIP , SO and MicroSO packages•Guaranteed RESET assertion to V CC = 1.1VApplications•Computers and embedded controllers •CTI applications •Automotive systems•Portable/Battery-operated systems •Intelligent instruments•Wireless communication systems •PDAs and hand-held equipment •Safety systemsTypical Operating Circuit+3.3V RegulatorV CCPFIMR(RESET)WDI WDO PFOV CC(RESET)I/O LINE NMI INTERRUPTUnregulated DCR 1R 2µPASM706 R/S/T ASM708 R/S/T (ASM706 P)RESET RESET 元器件交易网rev 1.0Block DiagramsPin ConfigurationRESET RESETMRV CCPFIPFOGenerator+-+-V CC20k ΩASM708R/S/T/J2.63V (ASM708R)2.93V (ASM708S)3.08V (ASM708T)4.00V (ASM708J)1.25V+RESETTransition Watchdog TimebaseRESET WDIWDORESET(RESET) ASM706PMRV CCPFIPFODetector TimerGenerator+-+-V CC20k ΩASM706P/R/S/T/J2.63V (ASM706P/R)2.93V (ASM706S)3.08V (ASM706T)4.00V (ASM706J)1.25V +MR V CCGND PFIRESET RESET NC PFO12345678MR V CCGND PFIRESET PFO12345678MR V CC GND PFIRESET NC PFO12345678MR V CC GNDPFI RESET PFO 12345678WDI WDO WDOWDI WDOWDI MR V CC GNDPFI RESET PFO 12345678RESET(RESET)(ASM706P)DIP/SOMicroSOA S M 708R /S /T /JA S M 706PA S M 706R /S /T /JA S M 706PA S M 706R /S /T /JA S M 708R /S /T /Jrev 1.0Pin DescriptionPin NumberName Function ASM706P ASM706R/S/T/J ASM708R/S/T/JDIP/ SO MicroSODIP/SOMicroSODIP/SOMicroSO131313MR Manual reset input. The active LOW input triggers a reset pulse. It is pulled HIGH by a 20kΩ pull-up resistor. It is compatible with TTL/CMOS signals when V CC = 5V. It can be shorted to ground through a mechanical switch. Leave folating or connect to V CC if the function is not used.242424V CC Monitored power supply input. 353535GND Ground.464646PFI Power-fail input voltage monitor. With PFI less than 1.25V, PFO goes LOW. Connect PFI to Ground when not in use.575757PFO Power-fail output. The output is active LOW and sinks current when PFI is less than 1.25V. If not used, leave the pin unconnected.6868--WDI Watchdog input. WDI controls the internal watch-dog timer. A HIGH or LOW signal for 1.6sec at WDI allows the internal timer to run-out, setting WDO low. A rising or falling edge must occur at WDI within 1.6 seconds or WDO goes LOW. The watchdog function is disabled by floating WDI. The internal watchdog timer clears when: RESET is asserted; WDI is three-stated ; or WDI sees a ris-ing or falling edge.----68NC Not Connected--7171RESET Active LOW reset output. Pulses LOW for 200ms when triggered, and stays LOW whenever V CC is below the reset threshold. RESET remains LOW for 200ms after V CC rises above the reset thresh-old or MR goes from HIGH to LOW. A watchdog timeout will not trigger RESET unless WDO is con-nected to MR.rev 1.08282--WDOWatchdog output. WDO goes LOW when the 1.6 second interval watchdog timer times-out and does not go HIGH until a transition occurs at WDI. In addition, when V CC falls below the reset thresh-old, WDO goes LOW. Unlike RESET, WDO does not have a minimum pulse width and as soon as V CC exceeds the reset threshold, WDO becomes HIGH with no delay.71--82RESETActive HIGH reset output. The inverse of RESET.Pin NumberNameFunctionASM706P ASM706R/S/T/J ASM708R/S/T/J DIP/SOMicroSODIP/SOMicroSODIP/SOMicroSOrev 1.0Detailed DescriptionsA proper reset input enables a microprocessor/microcontroller to start in a known state. ASM706 P/ R/ S/ T/J and ASM708 R/ S/ T/ J assert reset to prevent code execution errors during power-up, power-down and brown-out conditions.RESET/RESET OperationThe RESET/RESET signals are designed to start or return a µP/µC to a known state.With V CC above 1.2V, RESET and RESET are guaranteed to be asserted. During a power-up sequence, the reset outputs remain asserted until the supply rises above the threshold level. The resets are deasserted approximately 200ms after crossing the threshold.In a brownout situation where V CC falls below the threshold level, the reset outputs are asserted. If a brownout occurs during an already initiated reset period, the reset period will extend for an additional reset period of 200ms.The ASM708 devices have dual reset outputs, one active LOW and one active HIGH. The ASM706P has a single active HIGH reset and the ASM706/R/S/T/J devices have an active LOW reset output.Manual Reset (MR)The active-LOW manual reset input is pulled high by an internal 20k Ω pull-up resistor and can be driven low by CMOS/TTL logic or a mechanical switch to ground. An external debounce circuit isunnecessary since the 140ms minimum reset time will debounce mechanical pushbutton switches. The minimum MR input pulse width is 0.5µs with a 3V V CC input and 0.15µs with a 5V V CC input. If not used, tie MR to V CC or leave floating.By connecting the watchdog output (WDO) and MR, a watchdog timeout forces a RESET to be generated.Watchdog TimerA watchdog timer available on the ASM706P/R/S/T/J monitors µP/µC activity. An output line on the processor is used to toggle the WDI line. If the line is not toggled within 1.6seconds on the Watchdog Input (WDI), the internal timer puts the Watchdog Output (WDO) into a LOW state. WDO will remain LOW until a toggle is detected at WDI.The watchdog function is disabled, meaning it is cleared and not counting, if WDI is floated or connected to a three-stated circuit. The watchdog timer is also disabled if RESET is asserted. When RESET becomes inactive and the WDI input sees a high or low transition as short as 100ns (V CC = 2.7V)/Alliance Part #RESET Polarity Threshold Watchdog Timer ASM706P HIGH 2.63V YES ASM706R LOW 2.63V YES ASM706S LOW 2.93V YES ASM706T LOW 3.08V YES ASM706J LOW4.00V YES ASM708R HIGH & LOW 2.63V NO ASM708S HIGH & LOW 2.93V NO ASM708T HIGH & LOW 3.08V NO ASM708JHIGH & LOW4.00VNOFigure 1: WDI Three-state operationrev 1.050ns (V CC = 4.5V), the watchdog timer will begin a 1.6second countdown. Additional transitions at WDI will reset the watchdog timer and initiate a new countdown sequence.WDO will also become LOW and remain so, whenever the supply voltage, V CC , falls below the device threshold level.WDO goes HIGH as soon as V CC transitions above the threshold. There is no minimum pulse width for WDO as there is for the RESET outputs. If WDI is floated, WDO essentially acts as a low supply voltage output indicator. Power-failure Detection With Auxiliary Comparator All devices have an auxiliary comparator with 1.25V trip point.The output, PFO, is active LOW and the noninverting input is PFI. This comparator can be used as a supply voltage monitor with an external resistor voltage divider. As the monitored voltage level falls, PFI is reduced causing the PFO output to go LOW. Normally PFO interrupts the processor so the system can be shut down in a controlled manner.Application InformationBi-directional Reset Pin InterfacingThe ASM706/8 can interface with µP/µC bi-directional reset pins by connecting a 4.7k Ω resistor in series with the RESET output and the µP/µC bi-directional reset pin.Ensuring the RESET is Valid Down to V CC = 0VWhen V CC falls below 1.2V, the ASM706R/S/T/J and 708R/S/T/J RESET reset outputs no longer pull down; it becomes indeterminate. To avoid the possibility that stray charges could build up and force RESET to the wrong state, a pull-down resistor should be connected to the RESET pin, thus draining such charges to ground. The resistor value is not critical. A100k Ω resistor will pull RESET to ground without loading it.Figure 2: Watchdog timing0VSupply VoltageBUFBuffered RESETV CCASM70xGNDGNDRESET RESET InputµC or µP 4.7k ΩBi-directional I/O PinFigure 3: Bi-directional reset pin interfacingrev 1.0Monitoring Voltages Other Than V CCAbsolute Maximum RatingsParameterMin Max UnitPin Terminal Voltage with Respect to GroundV CC-0.3 6.0V All other inputs-0.3V CC + 0.3V Input Current at V CC and GND 20mA Output Current: All outputs 20mA Rate of Rise at V CC100V/µs Plastic DIP Power Dissipation (Derate 9mW/°C above 70°C)700mV SO Power Dissipation(Derate 5.9mW/°C above 70°C)470mW‘MicroSO POwer Disspation (Derate 4.1mW/°C above 70°C)330mWOperating Temperature RangeASM706xE, ASM708xE-40+85°C ASM706xC, ASM708xC070°C Storage Temperature Range-65160°C Lead Temperature Soldering (10sec)300°CNote: These are stress ratings only and functional operation is noy implied. Exposure to absolute maximum ratings for pro-longed time periods may affect device reliability.The ASM706/708 can monitor voltages other than V CC using the Power Fail circuitry. If a resistive divider is connected from the voltage to be monitored to the PFI input, the PFO will go LOW if the voltage at PFI goes below 1.25V reference. Should hysteresis be desired, connect a resistor (equal to approximately 10 times the sum of the two resistors in the divider) between the PFI and PFO pins. A capacitor between PFI and GND will reduce circuit sensitivity to input high frequency noise. If it is desired to assert a reset in addition to the PFO flag, this may be achieved by connecting the PFO output to MR.V CCPFIMRPFO V INR 1R 2ASM70X RESETGND+5V To µPFigure 4: Monitoring +5V and an additional supply V INrev 1.0Electrical CharacteristicsUnless otherwise noted, specifications are over the operating temperature range and V CC supply voltages are 2.7V to 5.5V (ASM706P, ASM708R), 3.0 V to 5.5V (ASM706/708S), 3.15V to 5.5V (ASM706/708T) and 4.1V to 5.5.V (ASM706/708J)Parameter Symbol Conditions Min Typ Max UnitOperating Voltage Range V CCASM706xC, ASM708xC 1.1 5.5V ASM706xE, ASM708xE 1.2 5.5Supply Current V CC < 3.6V I CCASM706xC, ASM706xE, MR = V CC, WDI Float-ing75140µA ASM708xC, ASM708xE, MR = V CC, WDI Float-ing50140Supply Current V CC < 5.5V I CCASM706xC, ASM706xE, MR = V CC, WDI Float-ing75140µA ASM708xC, ASM708xE, MR = V CC, WDI Float-ing50140RESET Threshold V RT P and R devices 2.55 2.63 2.70V S devices 2.85 2.93 3.00T devices 3.00 3.08 3.15J devices 3.89 4.00 4.10RESET ThresholdHysteresis40mVRESET Pulse Width t RS V CC = 3V (ASM706/8, P/R devices).ms V CC = 3.3V (ASM706/8, S/T devices).140200280V CC = 4.4V (ASM706/8, J devices).V CC = 5V200MR Pulse Width t MR 4.5V < V CC < 5.5V150ns 3.6V < VCC < 4.5V (ASM706/8J devices)V RST (MAX) < V CC < 3.6V(ASM706/8/P/R/S/T devices)500MR to RESET Out Delay t MD3.6V < VCC <4.5V (AS706/8J devices)V RST (MAX) < V CC < 3.6V(ASM706/8/P/R/S/T devices)750ns4.5V < V CC <5.5V250rev 1.0MR Input Threshold V IH V RST(MAX) < V CC < 4.5V0.7V CCV V IL V RST(MAX) < V CC < 4.5V0.6V IH 4.5V < V CC < 5.5V 2.0V IL 4.5V < V CC < 5.5V0.8MR Pullup resistor R P102040kΩRESET Output Volt-age(All R/S/T/J devices)V OH I SOURCE = 800µA, 4.5V < V CC < 5.5V V CC - 1.5V V OL I SINK = 3.2mA, 4.5V < V CC < 5.5V0.4V OH I SOURCE=500µA, V RST(MAX) < V CC < 4.5V0.8V CCV OL I SINK =1.2mA, V RST(MAX) < V CC < 4.5V0.3V OLI SINK = 50µA, V CC = 1.1V (ASM706xC,ASM708xC devices)0.3I SINK =100µA, V CC = 1.2V (ASM706xE,ASM708xE devices)0.3RESET Output Volt-ageASM706P V OH I SOURCE = 800µA, 4.5V < V CC < 5.5V V CC - 1.5V V OL I SINK = 3.2mA, 4.5V < V CC < 5.5V0.4V OH I SOURCE=500µA, V RST(MAX) < V CC <3.6V0.8V CCV OL I SINK =1.2mA, V RST(MAX) < V CC < 3.6V0.3RESET Output Volt-ageASM708R/S/T/J V OH I SOURCE = 800µA, 4.5V < V CC < 5.5V V CC - 1.5V V OL I SINK = 3.2mA, 4.5V < V CC < 5.5V0.4V OH I SOURCE=500µA, V RST(MAX) < V CC < 4.5V0.8V CCV OL I SINK =1.2mA, V RST(MAX) < V CC < 4.5V0.3Watchdog Timeout Period t WDV CC = 3V (ASM706, P/R devices).s V CC = 3.3V (ASM706 S/T devices). 1.0 1.6 2.25V CC = 4.4V (ASM706, J devices).WDI Pulse Width t WP V IL = 0.4V, V IH=0.8V CC,V RST(MAX) < V CC < 4.5V100ns V IL = 0.4V, V IH=0.8V CC,4.5V < V CC <5.5V50Parameter Symbol Conditions Min Typ Max Unitrev 1.0WDI Input Threshold V IH V CC = 5V 3.5V V IL0.8V IH V RST(MAX) < V CC < 4.5V0.7V CCV IL0.6WDI Input Current WDI = V CC, ASM706 only50150µA WDI = 0V, ASM706 only-150-50WDO Output Voltage V OH I SOURCE = 800µA, 4.5V < V CC < 5.5V V CC - 1.5V V OL I SINK = 1.2mA, 4.5V < V CC < 5.5V0.4V OH I SOURCE=500µA, V RST(MAX) < V CC < 4.5V0.8V CCV OL I SINK =1.2mA, V RST(MAX) < V CC < 4.5V0.3PFI Input Threshold PFI falling. For P/R devices V CC = 3V. For S/Tdevices V CC = 3.3V. For J devices V CC = 4.4V1.2 1.25 1.3VPFI Input Current-250.0125nAPFO Output Voltage V OH I SOURCE = 800µA, 4.5V < V CC < 5.5V V CC - 1.5V V OL I SINK = 3.2mA, 4.5V < V CC < 5.5V0.4V OH I SOURCE=500µA, V RS(MAX) < V CC < 4.5V0.8V CCV OL I SINK =1.2mA, V RS(MAX) < V CC < 4.5V0.3Parameter Symbol Conditions Min Typ Max Unitrev 1.0Package DimensionsMicroSO(8-pin)Inches MillimetersMin Max Min MaxA-0.0433- 1.10A10.00200.00590.0500.15A20.02950.03740.750.95b0.00980.01570.250.40C0.00510.00910.130.23D0.11420.1220 2.90 3.10e0.02560.65BSE0.193B 4.90BSE10.11420.1220 2.90 3.10L0.01570.02760.400.70a0°6°0°6°SO(8-pin)Inches MillimetersMin Max Min MaxA0.0530.069 1.35 1.75A10.0040.0100.100.25B0.0130.0200.330.51C0.0070.0100.190.25e0.050 1.27E0.1500.157 3.80 4.00H0.2280.244 5.80 6.20L0.0160.500.40 1.27D0.1890.197 4.80 2.00rev 1.0Inches Millimeters MinMax Min Max A -0.210- 5.33A10.015-0.38-A20.1150.195 2.92 4.95b 0.0140.0220.360.56b20.0450.070 1.14 1.78b30.0300.0450.080 1.14D 0.3550.4009.0210.16D10.005-0.13-E 0.3000.3257.628.26E10.2400.280 6.107.11e 0.100- 2.54eA 0.300-7.62eB -0.430-10.92eC -0.060L0.1150.1502.923.81Plastic DIP(8-pin)rev 1.0 Ordering CodesPart Number PackageOperatingTemperatureRange (°C)ResetThresholdReset PolarityWatchdogTimerASM706PCPA8- Plastic DIP0 to +70 2.63HIGH YES ASM706PCSA8-SO0 to +70 2.63HIGH YES ASM706PCUA8-MicroSO0 to +70 2.63HIGH YES ASM706PEPA8-Plastic DIP-40 to +85 2.63HIGH YES ASM706PESA8-SO-40 to +85 2.63HIGH YES ASM706RCPA8- Plastic DIP0 to +70 2.63LOW YES ASM706RCSA8-SO0 to +70 2.63LOW YES ASM706RCUA8-MicroSO0 to +70 2.63LOW YES ASM706REPA8-Plastic DIP-40 to +85 2.63LOW YES ASM706RESA8-SO-40 to +85 2.63LOW YES ASM706SCPA8- Plastic DIP0 to +70 2.93LOW YES ASM706SCSA8-SO0 to +70 2.93LOW YES ASM706SCUA8-MicroSO0 to +70 2.93LOW YES ASM706SEPA8-Plastic DIP-40 to +85 2.93LOW YES ASM706SESA8-SO-40 to +85 2.93LOW YES ASM706TCPA8- Plastic DIP0 to +70 3.08LOW YES ASM706TCSA8-SO0 to +70 3.08LOW YES ASM706TCUA8-MicroSO0 to +70 3.08LOW YES ASM706TEPA8-Plastic DIP-40 to +85 3.08LOW YES ASM706TESA8-SO-40 to +85 3.08LOW YES ASM706JCPA8- Plastic DIP0 to +70 4.00LOW YES ASM706JCSA8-SO0 to +70 4.00LOW YES ASM706JCUA8-MicroSO0 to +70 4.00LOW YES ASM706JEPA8-Plastic DIP-40 to +85 4.00LOW YES ASM706JESA8-SO-40 to +85 4.00LOW YES ASM708RCPA8- Plastic DIP0 to +70 2.63Dual: HIGH & LOW NO ASM708RCSA8-SO0 to +70 2.63Dual: HIGH & LOW NO ASM708RCUA8-MicroSO0 to +70 2.63Dual: HIGH & LOW NOrev 1.0ASM708REPA 8-Plastic DIP-40 to +85 2.63Dual: HIGH & LOW NO ASM708RESA 8-SO -40 to +85 2.63Dual: HIGH & LOW NO ASM708SCPA 8- Plastic DIP0 to +70 2.93Dual: HIGH & LOW NO ASM708SCSA 8-SO 0 to +70 2.93Dual: HIGH & LOW NO ASM708SCUA 8-MicroSO 0 to +70 2.93Dual: HIGH & LOW NO ASM708SEPA 8-Plastic DIP-40 to +85 2.93Dual: HIGH & LOW NO ASM708SESA 8-SO -40 to +85 2.93Dual: HIGH & LOW NO ASM708TCPA 8- Plastic DIP0 to +70 3.08Dual: HIGH & LOW NO ASM708TCSA 8-SO 0 to +70 3.08Dual: HIGH & LOW NO ASM708TCUA 8-MicroSO 0 to +70 3.08Dual: HIGH & LOW NO ASM708TEPA 8-Plastic DIP-40 to +85 3.08Dual: HIGH & LOW NO ASM708TESA 8-SO -40 to +85 3.08Dual: HIGH & LOW NO ASM708JCPA 8- Plastic DIP0 to +70 4.00Dual: HIGH & LOW NO ASM708JCSA 8-SO 0 to +70 4.00Dual: HIGH & LOW NO ASM708JCUA 8-MicroSO 0 to +70 4.00Dual: HIGH & LOW NO ASM708JEPA 8-Plastic DIP-40 to +85 4.00Dual: HIGH & LOW NO ASM708JESA8-SO-40 to +854.00Dual: HIGH & LOWNOPart Number PackageOperating Temperature Range (°C) Reset Threshold Reset PolarityWatchdog Timerrev 1.0Feature SummaryASM706P ASM706R ASM706S ASM706TASM706J ASM708R ASM708S ASM708T ASM708JPower faildetectorBrownoutdetectionDebouncedManualRESETPower-up/down RESETWatchdogTimerActive HIGHRESETActive LOWRESETActive LOWand HIGHRESETsRESETThreshold (V)2.63 2.63 2.933.084.00 2.63 2.93 3.08 4.00Alliance Semiconductor Corporation 2575, Augustine Drive,Santa Clara, CA 95054Tel: 408 - 855 - 4900Fax: 408 - 855 - Copyright © Alliance Semiconductor All Rights ReservedPart Number: ASM706 P/ R/ S/ T/ JASM708 R/ S/ T/ JDocument Version: 1.0© Copyright 2003 Alliance Semiconductor Corporation. All rights reserved. Our three-point logo, our name and Intelliwatt are trademarks or registered trademarks of Alliance. All other brand and product names may be the trademarks of their respective companies. Alliance reserves the right to make changes to this document and its products at any time without notice. Alliance assumes no responsibility for any errors that may appear in this document. The data contained herein represents Alliance's best data and/or estimates at the time of issuance. Alliance reserves the right to change or correct this data at any time, without notice. If the product described herein is under development, significant changes to these specifications are possible. The information in this product data sheet is intended to be general descriptive information for potential customers and users, and is not intended to operate as, or provide, any guarantee or warrantee to any user or customer. Alliance does not assume any responsibility or liability arising out of the application or use of any product described herein, and disclaims any express or implied warranties related to the sale and/or use of Alliance products including liability or warranties related to fitness for a particular purpose, merchantability, or infringement of any intellectual property rights, except as express agreed to in Alliance's Terms and Conditions of Sale (which are available from Alliance). All sales of Alliance products are made exclusively according to Alliance's Terms and Conditions of Sale. The purchase of products from Alliance does not convey a license under any patent rights, copyrights; mask works rights, trademarks, or any other intellectual property rights of Alliance or third parties. Alliance does not authorize its products for use as critical components in life-supporting systems where a malfunction or failure may reasonably be expected to result in significant injury to the user, and the inclusion of Alliance products in such life-supporting systems implies thatthe manufacturer assumes all risk of such use and agrees to indemnify Alliance against all claims arising from such use.ASM706 P/ R/ S/ T/ J ASM708 R/ S/ T/ J。

max708中文手册

MAX708具有比较器手动复位输入两组复位电平输出的微处理器电源监控芯片概述MAX708 是一种微处理器电源监控芯片可同时输出高电平有效和低电平有效的复位信号复位信号可由VCC 电压手动复位输入或由独立的比较器触发独立的比较器可用于监视第二个电源信号为处理器提供电压跌落的预警功能这一功能是为器件发出复位信号前的正常关机向操作者发送警报或电源切换而考虑的MAX708 提供 SO-8 或 TSSOP-8 的表面封装形式有3种域值电平可供选择性能• RESET 信号/RESET 信号输出• 域值值为1.25V 用于电源失效或低电源警告的独立比较器 • 手动复位输入• 需要100 uA 的电源电流• 复位域值为 2.63V2.93V3.08 V• 在VCC = 1 V 时能提供有效的 RESET 信号应用• 电池供应的器件• 微处理器临界状态监控 • 控制器• 便携式工具系统简图PMR V CCPFIGNDPFORESETRESETRESET INPUTINTERRUPTV CCRegulated DC supply (V CC )GNDPush-buttonSwitchUnregulated DC supplyMAX708定购信息型号封装名称说明温度范围MAX708 TSSOP8 极小型8引脚塑料(见尺寸图) 0 to 70 C MAX708 SO8 小型8引脚塑料(见尺寸图)0 to 70 C注意器件具有3种电压输出选项元件编号域值电压(通常)MAX708R 2.63V MAX708S 2.93V MAX708T 3.08V 元件数字标记元件编号标记MAX708R MAX708S MAX708T MAX708R MAX708S MAX708T 管脚定义23154678MR V CC GND PFIPFORESET RESET SO8NC 23154678MR V CCGNDPFI PFO RESET RESETTSSOP8NC管脚说明名称功能/MR 手动复位输入低有效当 /MR 拉至0.6V 时触发一个复位脉冲未用时接至VCCVCC 电源输入 GND 在PFI 电源失效比较器输入未用时接至GND/PFO 电源失效比较器输出低有效当引脚PFI 上的电压低于1.25V 时/PFO 输出低电平拉电流未用时必须悬空 NC 未连接/RESET 低有效复位输出当VCC 低于域值电平或 /MR 保持为低时/RESET 输出低电平在复位条件结束后/RESET 信号将继续保持 200mS.RESET高有效复位输出当VCC 低于域值电平或 /MR 保持为低时RESET 输出高电平在复位条件结束后RESET 信号将继续保持 200mS.最大额定值符号参数最小值最大值单位 VCC 电源电压 0.3 6.0 V其余输入管脚电压(注1)0.3 VCC+0.3V V 输入电流电源或地 20 mA 输出电流所有引脚 20 mA VCC 管脚上的电压上升速率 100 V/uSPd 功率消耗 SO8 封装T AMB 70(注2)470 mW功率消耗T AMB 70(注3)mW T OPR 工作温度 40 +85 T STG 贮存温度 65 +160注1引脚 PFI 和 /MR 上的输入电压可超过限值但提供的电流须<10mA 注2在70以上时减少5.88mW/注3在70以上时减少4.1mW/直流电气特性注意T A T MIN至T MAX VCC V RST(MAX)0.07V至5.5V除非另外说明符号参数条件最小值通常值最大值单位VCC 操作电压范围1.2 5.5 V VCC<3.6V 50 300I SUP 电源电流 VCC<5.5V 65 500 uAMAX708R 2.55 2.63 2.70MAX708S 2.85 2.93 3.00V RST 复位域值电平 MAX708T 3.00 3.08 3.15V 复位域值电平回滞 20 mVMAX708R: V CC = 3.0 VMAX708S/T V CC = 3.3 V 140 200 280 t RST 复位脉冲宽度(注1)MAX708R/S/T: V CC = 5.0 V 200mSV OH V RST(MAX)<V CC <3.6 V; I SOURCE = 500uA V CC x0.8 V OL V RST(MAX) <V CC <3.6 V; I SINK = 1.2mA 0.3 V OH 4.5 V <V CC <5.5 V ; I SOURCE = 800uA V CC-1.5 V OL 4.5 V <V CC <5.5 V ; I SINK = 3.2mA 0.4V OL /RESET 输出电压 V CC = 1.2 V ; I SINK = 100 uA 0.3V OH V RST(MAX)<V CC <3.6 V; I SOURCE = 500uA V CC x0.8 V OL V RST(MAX) <V CC <3.6 V; I SINK = 1.2mA 0.3V OH 4.5 V <V CC <5.5 V ; I SOURCE = 800uA V CC-1.5 V OL RESET 输出电压 4.5 V <V CC <5.5 V ; I SINK = 3.2mA 0.4V V RST(MAX) <V CC <3.6 V ; /MR = 0V 25 70 250/MR 上拉电流 4.5 V <V CC <5.5 V ; /MR = 0V 100 250 600 uAV RST(MAX) <V CC <3.6 V 150t MR /MR 脉冲宽度 4.5 V <V CC <5.5 V 500nSV IH V RST(MAX) <V CC <3.6 V 0.6 V IL V RST(MAX) <V CC <3.6 V V CC x0.7V IH 4.5 V <V CC <5.5 V 0.8 V IL /MR 输入域值 4.5 V <V CC <5.5 V 2.0V V RST(MAX) <V CC <3.6 V750 t MD /MR 至复位输出的延迟注14.5 V <V CC <5.5 V 250nS PFI 输入域值 PFI falling; MAX708R: V CC = 3.0 VMAX708S/T V CC = 3.3 V1.2 1.25 1.3 VPFI 输入电流 -25 0.01 +25 nA V OH V RST(MAX) <V CC <3.6V; I SOURCE = 500uA V CC x0.8 V OL V RST(MAX) <V CC <3.6 V; I SINK = 1.2mA 0.3V OH 4.5 V <V CC <5.5 V ; I SOURCE = 800uA V CC-1.5 V OL /PFO 输出电压 4.5 V <V CC <5.5 V ; I SINK = 3.2mA 0.4 V 注1输出 RESET 和 /RESET封装方式Cover Carrier ReelT apeGuard BarcodeBoxLabelTape DetailAssemblyBandTapeTape组装方式短语英汉对照英文短语译文Guard Band 包装带 Tape带芯Barcode Label 条形标签 Box底箱 Reel Assembly 转盘Tape Detail 带芯细节 Cover Tape 带芯覆膜Carrier Tape 带芯携带的信息。

75176B中文资料

75176B中⽂资料PACKAGING INFORMATION Orderable Device Status(1)PackageType PackageDrawingPins PackageQtyEco Plan(2)Lead/Ball Finish MSL Peak Temp(3)SN65176BD ACTIVE SOIC D875Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMSN65176BDE4ACTIVE SOIC D875Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMSN65176BDG4ACTIVE SOIC D875Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMSN65176BDR ACTIVE SOIC D82500Green(RoHS& no Sb/Br)CU NIPDAU Level-1-260C-UNLIMSN65176BDRE4ACTIVE SOIC D82500Green(RoHS& no Sb/Br)CU NIPDAU Level-1-260C-UNLIMSN65176BDRG4ACTIVE SOIC D82500Green(RoHS& no Sb/Br)CU NIPDAU Level-1-260C-UNLIMSN65176BP ACTIVE PDIP P850Pb-Free (RoHS)CU NIPDAU N/A for Pkg TypeSN65176BPE4ACTIVE PDIP P850Pb-Free (RoHS)CU NIPDAU N/A for Pkg TypeSN75176BD ACTIVE SOIC D875Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMSN75176BDE4ACTIVE SOIC D875Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMSN75176BDG4ACTIVE SOIC D875Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMSN75176BDR ACTIVE SOIC D82500Green(RoHS& no Sb/Br)CU NIPDAU Level-1-260C-UNLIMSN75176BDRE4ACTIVE SOIC D82500Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMSN75176BDRG4ACTIVE SOIC D82500Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMSN75176BP ACTIVE PDIP P850Pb-Free(RoHS)CU NIPDAU N/A for Pkg TypeSN75176BPE4ACTIVE PDIP P850Pb-Free(RoHS)CU NIPDAU N/A for Pkg TypeSN75176BPSR ACTIVE SO PS82000Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMSN75176BPSRG4ACTIVE SO PS82000Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIM(1)The marketing status values are defined as follows:ACTIVE:Product device recommended for new designs.LIFEBUY:TI has announced that the device will be discontinued,and a lifetime-buy period is in effect.NRND:Not recommended for new designs.Device is in production to support existing customers,but TI does not recommend using this part in a new design.PREVIEW:Device has been announced but is not in production.Samples may or may not be available.OBSOLETE:TI has discontinued the production of the device.(2)Eco Plan-The planned eco-friendly classification:Pb-Free(RoHS),Pb-Free(RoHS Exempt),or Green(RoHS&no Sb/Br)-please check /doc/7167b986cc22bcd126ff0c93.html /productcontent for the latest availability information and additional product content details.TBD:The Pb-Free/Green conversion plan has not been defined.Pb-Free(RoHS):TI's terms"Lead-Free"or"Pb-Free"mean semiconductor products that are compatible with the current RoHS requirements for all6substances,including the requirement that lead not exceed0.1%by weight in homogeneous materials.Where designed to be soldered at high temperatures,TI Pb-Free products are suitable for use in specified lead-free processes.Pb-Free(RoHS Exempt):This component has a RoHS exemption for either1)lead-based flip-chip solder bumps used between the die andpackage,or2)lead-based die adhesive used between the die and leadframe.The component is otherwise considered Pb-Free(RoHS compatible)as defined above.Green(RoHS&no Sb/Br):TI defines"Green"to mean Pb-Free(RoHS compatible),and free of Bromine(Br)and Antimony(Sb)based flame retardants(Br or Sb do not exceed0.1%by weight in homogeneous material)(3)MSL,Peak Temp.--The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications,and peak soldertemperature.Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided.TI bases its knowledge and belief on information provided by third parties,and makes no representation or warranty as to the accuracy of such information.Efforts are underway to better integrate information from third parties.TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.TI and TI suppliers consider certain information to be proprietary,and thus CAS numbers and other limited information may not be available for release.In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s)at issue in this document sold by TI to Customer on an annual basis.TAPE AND REEL INFORMATIONDevice Package Pins Site ReelDiameter(mm)ReelWidth(mm)A0(mm)B0(mm)K0(mm)P1(mm)W(mm)Pin1QuadrantSN65176BDR D8FMX33012 6.4 5.2 2.1812Q1 SN75176BDR D8FMX33012 6.4 5.2 2.1812Q1 SN75176BPSR PS8MLA330168.2 6.6 2.51216Q1TAPE AND REEL BOX INFORMATIONDevice Package Pins Site Length(mm)Width(mm)Height(mm)SN65176BDR D8FMX338.1340.520.64SN75176BDR D8FMX338.1340.520.64SN75176BPSR PS8MLA342.9336.628.58。

博林特MPK708C用户手册

无脚手架电梯安装慢车调试2009-9-4目录1�序言2�注意事项3.现场元器件装配检查及确认4.上电和参数设置5.主控制器运行条件的确认6.电流及磁场整定步骤7.机房慢车调试8.轿顶慢车调试9.主控器及变频器故障记录1.序言电梯的安装是电梯售后服务的一部分�电梯无脚手架安装即是一种降低成本、提高安装质量并增加施工安全性的新电梯安装方法。

该电梯安装方法系采用电梯自身的轿厢底板作为施工电梯吊篮的底板�以电梯自身的导轨作为电梯吊篮在井道内运行的导轨�以电梯自身的主机作为电梯吊篮在井道内提升的动力�以电梯自身的极限、限位、缓冲器及其开关、限速器和安全钳等安全部件作为吊篮在井道内施工的安全部件。

最大限度地减少了脚手架的使用。

本手册适用于采用M P K708C控制系统的无脚手架安装电梯电气慢车调试�尤其适用于出厂前已经过联机调试的电梯。

如有疑问请及时与公司安装部联系。

安装部2009-9-42-注意事项1、调试前应对应检查井道�确认电梯部件安装完毕�井道内绝不允许有凸起物。

2、调试前应检查底坑无水�井道壁无渗漏。

3、调试前应检查机房温度、湿度合乎要求�地面无积水�无渗漏。

4、调试前应检查控制柜的工作面离墙面的距离大于600m m。

控制柜与机械设备距离应不小于500m m。

5、调试前应对控制柜内各器件进行检查�器件是否完好�连线是否松动�各接插件/电缆连接是否正确�有无松动。

6、调试前应在各厅站门口放置显著标识�以防外部人员误入电梯发生意外。

调试过程中非调试人员严禁进入机房。

7、调试过程中如需切断电源�应在开关处悬挂或粘贴明显标识。

8、调试过程中应对主调试人发出的每项指令加以重复�无误后方可执行�以免造成失误。

9、调试过程中如需进入井道应带安全帽。

10、调试过程中任何人未经允许不得私自进入底坑或上轿顶。

11、在吊装曳引机时�应特别注意使用标识吊点�并保护编码器12、调试前应检查电动设备的检验期有效13、烧电焊时�要检查地线和焊把线�防止电焊时烧毁控制柜元器件14、在整个无脚手架电梯安装过程中�必须保证安全钳及限速器起超速保护的作用�限位、轿厢缓冲器及对重缓冲器开关起极限运行位置电气保护作用�轿厢缓冲器及对重缓冲器起极限位置缓冲作用�15、对重坨数量应计算准确�对重架放入井道时�确认井道内无人员施工�对重架放入井道时�厅门口操作人员应系安全带�并固定于井道外牢固处16、不能在轿底或工作平台上做任何剧烈运动�走车时�应确认固定轿厢的顶杠脱离井道壁17、电梯安装中避免使用安装队自购的卷扬机、钢丝绳、吊篮等。

保安电器70842B错误探测器说明书

Gating Period Format
The gating period format can be specified in one of three modes. A time period ranging from 1 second to 99 days, 23 hours, 59 minutes, 59 seconds, (resolution 1 second).
1-16 General Information
Measurement Period
Real-time Clock: Provides time and date information for event logging. Battery back-up allows clock to continue running when the instrument is switched off or power fails.
Results summary can be logged t o an external printer over HP-IB at the end of each consecutive period.
Gating after a Power Loss
On instruments configured for MasterlSlave operation and with AUTO sync selected, gating will restart after a power loss in the following manner.
Frequency Measurement
The incoming clock frequency is measured and displayed t o five significant digits.