L6271资料

H-BRIDGE GND-P COIL N.C. OUT1-A
OUTK-A SLEEP INA(inv)
INA(not inv) V-SHIFTED
Vin 0-5 GND-A
1
24
2
23
3
22
4
21
5
20
6
19
7
18
8
17
9
16
10
15
11
14
12
13
D98IN969
HVP HVM RC comp LIN/BANG V512-AP OUT1-B OUTK-B INB(inv) INB(not inv) DC2ref Iref Vref
7
INA (inv)
Inverting input of A-amplifier.
8
INA (not inv) Non Inverting input of A-amplifier.
9
GND-A
Analog ground.
10
Vref
Precise 2.5V reference voltage.
11
14
INB (inv)
Inverting input of B-amplifier.
15
OUTK-B
Hi current output ampl.B.
16
OUT1-B
Output ampl.B.
17
V512-AP
Analog&Power voltage supply 5 to 12V.
18
RC comp DC-DC converter compensation network.
14 IREF 25KΩ
15 DC2REF RREFDC
D98IN959A
February 1999
This is preliminary information on a new product now in development. Details are subject to change without notice.
PIN FUNCTIONS (SO24)
N.
Name
Description
1
H-BRIDGE 40V Half Bridge output for negative charge pump.
2
GND-P
Power ground.
3
COIL
Coil for positive step up.
4
N.C.
HVM HVP
POWER SUPPLY
1
K
RESONANT
DC-DC STEP-UP CONTROLLER 1Ω
1
K
1
K
1 HBRIDGE
47nF
2 GND-P 18
OUTK-B 19
OUT1-B 23
HVM
-40V 100nF
8
INA-
-
9
INA+
+
2.5V HVM
1
K
50KΩ
7 SLEEP
BAND-GAP
1/10
元器件交易网
L6270 - L6271
PIN CONNECTION (SO20)
H-BRIDGE GND-P COIL OUT1-A
OUTK-A SLEEP INA(inv)
INA(not inv) GND-A Vref
1
20
2
19
3
18
4
17
5
16
6
15
7
14
V512-AP
Analog&Power voltage supply 5 to 12V.
21
LIN/BANG Linear or Bang-bang select pin (V512 = BANG 0 = Linear)
22
RC comp DC-DC converter compensation network.
12
GND-A
Analog ground.
13
Vref
Precise 2.5V reference voltage.
14
Iref
External resistor for precise internal current reference.
15
DC2ref
Reference voltage for DC-DC converter X20.
19
HVM
Negative High voltage generated op amp supplier.
20
HVP
Positive High voltage generated op amp supplier.
2/10
元器件交易网
L6270 - L6271
PIN CONNECTION (SO24)
9
INA (not inv) Non Inverting input of A-amplifier.
10
V-SHIFTED Analog level shifter output Vin-Vref (-2.5 to +2.5 dynamic range)
11
Vin 0-5
Input positive voltage
元器件交易网
L6270
®
L6271
90V BCD MIXED TECHNOLOGY SO24 AND SO20 PLASTIC SMD PACKAGE 4.5 TO 13.2V OPERATIVE VOLTAGE ±25 TO ±40V OUTPUT VOLTAGE RANGE SELECTABLE BY EXTERNAL RESISTOR FULL-WAVE RESONANT DC-DC CONVERTER USING SINGLE COIL FOR DUAL HIGH VOLTAGE GENERATOR WITH OUTPUT SLEW RATE CONTROL AND SELF CURRENT LIMITING LINEAR MODE AND BANG-BANG MODE ±40V OR 0/+80V OPERATIVE VOLTAGE DRIVING CONFIGURATION MODES:
8
13
9
12
10
11
D98IN968
HVP HVM RC comp V512-AP OUT1-B OUTK-B INB(inv) INB(not inv) DC2ref Iref
PIN FUNCTIONS (SO20)
N.
Name
Description
1
H-BRIDGE 40V Half Bridge output for negative charge pump.
23
HVM
Negative High voltage generated op amp supplier.
24
HVP
Positive High voltage generated op amp supplier.
3/10
元器件交易网
L6270 - L6271
ABSOLUTE MAXIMUM RATINGS
16
INB (not inv) Non Inverting input of B-amplifier.
17
INB (inv)
Inverting input of B-amplifier.
18
OUTK-B
Hi current output ampl.B.
19
OUT1-B
Output ampl.B.
20
Iref
External resistor for precise internal current reference.
12
DC2ref
Reference voltage for DC-DC converter X20.
13
INB (not inv) Non Inverting input of B-amplifier.
Rds, on Iboost CP-slope Isleep Vref Ivref
Vref, cap Iref, res
Vsup
Ratio of HVP and DC-DC ref. voltage PIN15 Output current (see figure 1a)
Time to operating condition Switching Frequency Boost transistor ON resistance Boost transistor current limiting Charge Pump Slope Total current in sleep mode Reference voltage at PIN13 Reference voltage output current Filter capacitor at PIN13 Resistor at PIN14 for precise internal current (100µA) Minimum OpAmp supply Voltage (HVP if externally given)
DESCRIPTION The L6270/1 is a piezoelectric actuator driver.
V512-AP 20
CRES
COIL
BANG-LIN 21
COIL Vfdb 3
HVP 24
VSUPPLY 4.5V-13V
+40V 100nF
17 INB-
16 INB+
HVP
+
RCCOMP 22
All the voltage value are referred to ground.
Value
Unit
14
V
84
V
-42
V
±6
V
-0.5 to +5.5
V
-20 to +80
°C
-40 to +125
°C
ELECTRICAL CHARACTERISTICS (All the following parameters are specified @ 27°C and V512 = 12V, unless otherwise specified.)
2
GND-P
Power ground.
3
COIL
Coil for positive step up.
4
OUT1-A
Output ampl.A.
5
OUTK-A
Hi current output ampl.A.
6
SLEEP
Sleep mode for stand-by condition (1=SLEEP 0=operative).
BLOCK DIAGRAM
MILLI-ACTUATOR DRIVER
PRODUCT PREVIEW
SO20
SO24
ORDERING NUMBERS:
L6270
L6271
2.5V VOLTAGE REFERENCE 2.5V ANALOG SHIFTING CIRCUITRY POWER SAVING SLEEP MODE
Symbol V512 HVP HVM IN A&B
Vin o to 5 Tamb Tstg
Parameter Supply voltage pin 20 referred to Ground Positive high voltage referred to HVM Negative high voltage referred to Ground Amplifier input voltage common mode Level shifts input voltage Operative Ambient Temperature Storage Temperature
+
REFERENCE
SLEEP
-
ANALOG LEVEL SHIFTER
VOUT=VIN-2.5
VOUT VIN
10
11
V-SHIFTED
VIN0-5
12 GND-A
15
VSUPPLY
20 V512A
200µA
+
-
INTERNAL
CURRENT
BIAS
13 VREF 100nF
Symbol
V512 HVP (1)
Parameter Main power supply Output positive Voltage
HVM
Output negative voltage
HVripple HVP, HVM ripple
DC-DC gain
I, hvp I, hvm
Top Fswitch (2)
5
OUT1-A
Output ampl.A.
6
OUTK-A
Hi current output ampl.A.
7
SLEEP
Sleep mode for stand-by condition (1=SLEEP 0=operative).
8
INA (inv)
Inverting input of A-amplifier.
1. SINGLE ENDED VOLTAGE MODE 2. DIFFERENTIAL VOLTAGE MODE 3. SINGLE ENDED CHARGE MODE DOUBLE OPERATIONAL AMPLIFIERS WITH 500KHZ GAIN BANDWIDTH PRODUCT AND LOAD DRIVING CAPABILITY FROM 0.4NF UP TO 24NF