ISL6740IV-T Datasheet, PDF (2/28 Pages) Intersil Corporation – Flexible Double Ended Voltage and Current Mode PWM Controllers

Functional Block Diagram
VDD
VREF
SYNC
VREF
100
5.00 V
1%
+
ENABLE
-
BG +-
4.5k
GND
INTERNAL ^{N_SYNC OUT}
OT SHUTDOWN
+130°C TO +150°C
BI-DIRECTIONAL
SYNCHRONIZATION SYNC IN
INHIBIT/VIN UV
UV
1.00V +
-
INHIBIT EXT. SYNC
IRTC
RTC
IRTD
RTD
SCSET
CT
OSCILLATOR
CLK
SHORT CIRCUIT
DETECTION
SS DONE
CS
VERROR
OTS
0.4
0.4
+
0.6V -
OC DETECT
PWM
+ ^COMPARATOR
--
SS
0.5
ISL6740
FL
Q
T
Q
PWM TOGGLE
SC S/D
SS LOW
SQ
RQ
SC LATCH
OC S/D
-
+
4.5V
SS CLAMP
SS DONE
300k
OC LATCH
SQ
RQ
OUTA
OUTB
VREF
70µA
ON
SS
15µA
Q
Q
50µs
RETRIGGERABLE
ONE SHOT
SQ
RQ
PWM LATCH
RESET
DOMINANT
VREF/2 -
+
INHIBIT
SS HI
+
-
4.25V
SS LOW _{+ 0.27V}
-
FAULT LATCH
SET DOMINANT
S Q _FL
RQ
SC S/D
OC S/D
VREF UV 4.65V
-
+
BG ^+-
VREF
FAULT