ISL6534 Intersil Corporation, ISL6534 Datasheet - Page 3

• Manufacturer Part Number: ISL6534
• Description: Dual PWM
• Manufacturer: Intersil Corporation

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SS1/EN1
SS2/EN2
SS3/EN3
PGOOD
Block Diagram
COMP1
COMP2
REFIN
FB1
FB2
0.6V
VCC5
VCC5
VCC5
3.3V
30 µA
30 µA
30 µA
GND
3
with no COMP short
all 3 SS ramps done
3.3V
AND CONTROL
PGOOD =
MONITOR
COMP PINS
FOR SHORTS
POWER
RESET
ON
VCC
FIGURE 1. BLOCK DIAGRAM
IF SHORT > FILTER,
SHUT DOWN ALL
3 OUTPUTS
1-2 CLOCK
ISL6534
FILTER
CYCLE
BIAS CURRENT
0.6V
VCC5
REFERENCE
5.8V
GENERATOR
CLOCK AND
SAWTOOTH
VREF
3.3V
3.3V
PGND
GATE CONTROL
GATE CONTROL
DEAD-TIME
DEAD-TIME
OUTPUT1
CONTROL
DRIVERS
OUTPUT2
DRIVERS
CONTROL
VCC12
LOGIC
LOGIC
0.6V
FN9134.1
BOOT1
UGATE1
LGATE1
BOOT2
UGATE2
LGATE2
FS/SYNC
REFOUT
FB3
DRIVE3