绿达IC详解

OLP/SCP
AutoRecovery Latch
AutoRecovery Latch
AutoRecovery Latch
AutoRecovery AutoRecovery
AutoRecovery AutoRecovery
Latch
AutoRecovery AutoRecovery
AutoRecovery AutoRecovery
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AC-DC Product Roadmap
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AC/DC Product Roadmap
Product Line
< 40W
Present Q1
GR8935/M/L GR8830 GR8836/35A GR8837 Series GR8833 GR8937/M/L(8837+MOS) GR8870 GR8876 GR8874 GR8876A GR8875 Series ( HV, Bleed,
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GR8837
Below 0.1W of Power Saving 65KHz/100KHz Operating Frequency Optional External OVP/OTP Latch Mode OLP/SCP, VCC pin OVP latch/auto-recovery optional
Pin Configuration
Pin Description
Pin No. 1 2 3 4 5 6` Nam GND COMP Latch CS VCC OUT Ground Voltage feedback pin, by connecting a photocoupler to control the duty cycle This pin provides latch mode for OVP/OTP Current sense pin ,connect to sense the MOSFET current Power supply pin The output driver for driving the external power MOSFET Function
70~500W
GR8387
GR8801
(HV QR, High Eff. <50mW)
PSR
GR8818
(40KHz PSR, Driving BJT ,<100mW)
GL8258
(40KHZ PSR, Driving MOS, <100mW)
GR8819
(65KHZ/100KHz, PSR, <30mW)
Nam GND COMP Latch CS VCC OUT
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GR8833R Key Features
Features
Very Low Startup Current Below 0.1w of Standby Power Jittering for Reducing Conduction Soft Driving for Reducing Radiation Interference Non-Audible-Noise Green Mode Control Programmable OTP and OVP on Latch Pin Internal Soft Start Build in OVP on Vcc Pin 250 mS of Over Load Protection (OLP) Over Current Protection (OCP) on CS Pin 65KHz or 100KHz of Operating Frequency
Brown out/in, < 50mW)
2012 Q2 Q3
GR8839
(EPS Level 6.0, QR)
Q4
GR8838
(8837 improve EMI, OCP, <100mW)
< 70W
GR8837E
(6pin Enhance driver, <100mW)
GR8877
(HV, full function, OCP, <50mW)
Pinning
SOP8 SOP7
Table 1
Pin No. 1 2 3 4 5 6 7 8 Name Latch COMP CS GND OUT VCC NC HV
Pin description
Function This pin provides latch mode for ext. OVP/OTP Voltage feedback pin, by connecting a photo-coupler to control the duty cycle Current sense pin ,connect to sense the MOSFET current Ground pin The output driver for driving the external MOSFET Power supply pin Unconnected pin This pin provides the start up current ,brown-out and bleeding resistor functions
GR8820
(65KHZ, PSR, <100mW)
PFC Supervisor
GR8762 GR8313 GR8323N GR8324N GR8329N
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10W~70W Green Mode PWM
GR8837 Series GR8833R GR8875 Series GR8836/GR8830 GR8876A/GR8874
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Comparison Table
FAN6747
Package OCP Protection OCP delay time VCC OVP External OTP External OVP SOP-8 two-level 215ms 24/25/26V 1.0/1.05/1.1V NA
OTP and OVP Function
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GR8833R
Below 0.1W of Power Saving 65KHz/100KHz Operating Frequency Optional External OVP/OTP Latch mode 250ms OLP Delay Time
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GR8837 Application Field
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GR8837 Series Comparison Table
GR8837 Series Table
Item Frequency GR8837 65kHz GR8837A 65kHz GR8837B 65kHz GR8837C 65kHz GR8837ER 65kHz GR8837L 65kHz GR8837R 65kHz GR8837H 100kHz GR8837M 100kHz
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GR8833R OCP Compensation
12v/2A peak load 50w
Input Voltage 90V/60Hz 115V/60Hz 230V/50Hz 264V/50Hz Output Power (W) 51w 55.56 55.2 55.2 Output Curren t (A) 4.25 4.63 4.6 4.6
AC-DC IC Introduction
July 2012 Marketing Department
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Overview
AC/DC Product Roadmap 10W-70W Green Mode PWM IC 1W-12W Green Mode PWM IC Housekeeping Solution AC-DC Selection Guide
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GR8833R OVP Function
Vcc OVP=31V
Programmable OVP/OTP
Vcc OVP=31V gets around Peak power to trigger
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GR8833R OLP Features
Reduce IC operation current during PWM-off
绿达ic详解.pdf ac-dcic introduction july 2012 marketing department green your life ac/dc product roadmap 10w-70w green mode pwm ic 1w-12w green mode pwm ic housekeeping solution ac-dc selection guide overview green your life ac-dc product roadmap green your life product line present 2012 q1 q2 q3 q4 40wgr8935/m/l gr8830 gr8836/35a gr8837 series gr8833 gr8937/m/l(8837+mos) gr8838 (8837 improve emi, ocp, <100mw) gr8839 (eps level 6.0, qr) 70wgr8870 gr8876 gr8874 gr8876a gr8875 series hv,bleed, brown out/in, 50mw)gr8837e (6pin enhance driver, <100mw) gr8877 (hv, full function, ocp, <50mw) 70~500w gr8387 gr8801 (hv qr, high eff. <50mw) psr gr8818 (40khz psr, driving bjt ,<100mw) gl8258 (40khz psr, driving mos, <100mw) gr8819 (65khz/100khz, psr, <30mw) gr8820 (65khz, psr, <100mw) pfc gr8762 supervisor gr8313 gr8323n gr8324n gr8329n ac/dc product roadmap green your life 10w~70w green mode pwm gr8837series gr8875series gr8876a/gr8874green your life pin namfunction gndground compvoltage feedback pin, photo-coupler dutycy
Latch
Vcc OVP
Latch
Latch
Enhance Driver Brown in/ out RTL OVP/OTP (latch)
N
N
N
N
Y
N
N
Nቤተ መጻሕፍቲ ባይዱ
N
N
N
Y
Y
N
N
N
N
N
Y
Y
N
N
Y
Y
Y
Y
Y
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GR8837 OCP Compensation
OCP comparison
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GR8833R Lower Standby Power Application circuit (Without changing layout )
Without Bleeding Resistor
Vin (rms) Pin (W) 90V 30mw 120V 33mw 230V 63mw 264V 76mw
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GR8875 Series Key Features
Features
HV Pin Built-In Bleeding Resistor Function Below 50mW of Standby Power Jittering for Reducing Conduction EMI Soft Driving for Reducing Radiation EMI Non-Audible-Noise Green Mode Control Built-in Brown-Out/In Function on HV Pin Internal High/Low Line OCP Compensation Internal Slope Compensation Latch Mode for External OVP/OTP on Latch Pin Over Load Protection (OLP) Over Voltage Protection on VCC Pin
Pinning
Application
Printer Power Supply Capacitive Load Motor driver DVB Adapter Table 1
Pin No. 1 2 3 4 5 6`
DIP8
SOT23-6
Pin Description
Function Ground Voltage feedback pin, by connecting a photoCoupler to control the Duty cycle This pin provides latch mode for OVP/OTP Current sense pin ,connect to sense the MOSFET current Power supply pin The output driver for driving the external power MOSFET
FAN 6861
SOT-26 two-level 780ms 24/25/26V 0.92/1.0/1.08V NA
GR8833R
SOT-26 one Level 250ms 31/32/33V 0.95/1.0/1.05V 3.2/3.5/3.8V
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GR8875
Below 50mW of Power Saving 65KHz/100KHz Operating Frequency Latch Mode for Ext. OVP/OTP Latch/Auto-Recovery Mode Optional for OLP & VCC OVP 700V HV Process Application N/B and E-PC LCD monitor/TV Adapter
2 1.9
OCP
GR8837 LD7536
1.8 1.7 1.6 1.5
90 1.76 1.9481
115 1.81 1.9668
230 1.668 1.5862
264 1.76 1.6612
GR8837 LD7536
Input voltage(rms)
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GR8837 Latch Mode