ISL8845A Intersil Corporation, ISL8845A Datasheet - Page 3

• Manufacturer Part Number: ISL8845A
• Description: (ISL8840A - ISL8845A) High Performance Industry Standard Single-Ended Current Mode PWM Controller
• Manufacturer: Intersil Corporation

Functional Block Diagram
COMP
RTCT
GND
V DD
CS
FB
100k
150k
VREF
AMPLIFIER
ERROR
2.9V
1.0V
ON
8.4mA
+ -
COMPARATOR
OSCILLATOR
UV COMPARATOR
+
-
START/STOP
2.5V
<10ns
+
-
+
-
VF TOTAL = 1.15V
A = 0.5
CLOCK
A
V DD
ON
OK
100mV
2R
ENABLE
R
COMPARATOR
CLAMP
V REF
5.00V
1.1V
PWM
+
-
ISL8841A/
ISL8844A/
ISL8845A
DOMINANT
ONLY
RESET
T
S
R
Q
Q
Q
Q
VREF FAULT
UV COMPARATOR
4.65V
VREF
4.80V
+
-
36k
VREF
OUT