ISL6755 Datasheet, PDF (2/17 Pages) Intersil Corporation – ZVS Full-Bridge PWM Controller with Average Current Limit

Functional Block Diagram
VDD
GND
VREF
RESDEL
IOUT
UVLO
OVER-
TEMPERATURE
PROTECTION
4X
VREF
CT
RTD
CTBUF
SS
OSCILLATOR
SAMPLE
AND
HOLD
VREF
50%
PWM
STEERING
LOGIC
PWM
+
- _1.00V
OVER CURRENT
COMPARATOR
+70 nS
LEADING
EDGE
BLANKING
VDD
OUTUL
OUTUR
OUTLL
OUTLR
CS
PWM
COMPARATOR
+
-
80mV
0.33
SOFTSTART
CONTROL
VREF
1 mA
RAMP
+
0.6V
-
+
-
VERR
FB1
FB2