ISL6571 Datasheet, PDF (10/11 Pages) Intersil Corporation – Complementary MOSFET Driver and Synchronous Half-Bridge Switch

+12VIN >
+5VIN >
C_VCC1
R_PG
POWER
GOOD
>
R_FS
20
VCC
15
PWM1
ISEN1 ¹⁶
14
PWM2
ISEN2 ¹³
19 _PGOOD
U1
11
PWM3
12
ISEN3
HIP6301
8 _FS/DIS
18
PWM4
17
ISEN4
5 _VID0
4 _VID1
3 _VID2
2 _VID3
1 _VID4
GND
9
COMP
6
C2
C1
FB ⁷
R2
VSEN
10
R_OFFSET
ADDITIONAL
HIGH-FREQUENCY
DECOUPLING
1 to each of VCC2-5
C_VCC2-5
1 to each of PVCC2-5
C_PVCC2-5
C_VIN2-5
2 to each of VIN2-5
varied HF mix to V_OUT
C_{OUT_HF}
varied bulk mix to V_OUT
C_{OUT_BULK}
R1
C3
R3
ISL6571
L_IN
VCC PVCC BOOT
PWM
VIN
LGATE1 ^U2
ISL6571
LGATE2
PHASE
LGATE GND PGND
+ C_IN1
C_BOOT1
L_OUT1
R_SNS1
VCC PVCC BOOT
PWM
VIN
LGATE1 ^U3
ISL6571
LGATE2
PHASE
LGATE GND PGND
+ C_IN2
C_BOOT2
L_OUT2
R_SNS2
+
C_OUT
VCC PVCC BOOT
PWM
VIN
LGATE1 ^U4
ISL6571
LGATE2
PHASE
LGATE GND PGND
+ ^CIN3
C_BOOT3
L_OUT3
V_OUT
R_SNS3
VCC PVCC BOOT
PWM
VIN
LGATE1 ^U5
ISL6571
LGATE2
PHASE
LGATE GND PGND
+ ^CIN4
C_BOOT4
L_OUT4
R_SNS3
FIGURE 13. TYPICAL ISL6571 APPLICATION CIRCUIT
10
FN9082.4