ISL6571 Datasheet, PDF (4/11 Pages) Intersil Corporation – Complementary MOSFET Driver and Synchronous Half-Bridge Switch

+12VIN
+5VIN
PWM
ISL6571
CONTROL
AND
DRIVERS
ISL6571
C_BOOT
L_OUT
V_OUT
C_OUT
FIGURE 2. SIMPLIFIED POWER SYSTEM DIAGRAM
+12VIN
+5VIN
20
VCC
PWM4
18
ISEN4
17
PWM1 ¹⁵
ISEN1 ¹⁶
POWER
GOOD
R_FS
PWM2 ¹⁴
19 _PGOOD
ISEN2 ¹³
U1
HIP6301
8 _FS/DIS
11
PWM3
12
ISEN3
5 _VID0
4 _VID1
3 _VID2
2 _VID3
1 _VID4
GND
9
COMP
6
C2
C1
FB ⁷
R2
VSEN
10
R_OFFSET
R1
L_IN
VCC PVCC BOOT
PWM
VIN
U2
ISL6571
LGATE1
PHASE
LGATE GND PGND
VCC PVCC BOOT
PWM
VIN
U3
ISL6571
LGATE1
PHASE
LGATE GND PGND
VCC PVCC BOOT
PWM
VIN
U4
ISL6571
LGATE1
PHASE
LGATE GND PGND
FIGURE 3. TYPICAL APPLICATION
4
+ C_IN1
C_BOOT1
L_OUT1
R_SNS1
+ C_IN2
C_BOOT2
L_OUT2
R_SNS2
+
C_OUT
V_OUT
+ ^CIN3
C_BOOT3
L_OUT3
R_SNS3
FN9082.4