ISL6144 Intersil Corporation, ISL6144 Datasheet - Page 4

• Manufacturer Part Number: ISL6144
• Description: High Voltage ORing MOSFET Controller
• Manufacturer: Intersil Corporation

Simplified Block Diagram
SOURCE 1
10V TO 75V
10V TO 75V
SOURCE 2
C
1
1.5mA
HVREF
FAULT
GND
VIN
5.5V
DELAY
100µs
4
LEVEL
SHIFT
GATE LOGIC AND
CHARGE PUMP
1.5mA
2A*
5mA
C
1
DETECTION
COMP
FAULT
HS
ISL6144
HVREF
FAULT
VIN
+
-
AMPLIFIER
ISL6144
GATE
GND
REG
+
-
D
2
GATE
D
COMP
*
VOUT
VSET
1
*
COMP
UV
F2**
20mV
-
R
R
+
1
2
C
* D
**F1, F2 FUSES COULD ALSO BE PLACED
ON THE INPUT SIDE BEFORE THE VIN PIN. THIS
PLACEMENT DEPENDS ON POWER SYSTEM
ARCHITECTURE.
2
+
-
1
, D
2
0.6V
PARASITIC DIODES
CLAMPING
VOLTAGE
PASS
HIGH
AND
BIAS
AND
REF
F1**
COMP
VSET
0.2 mA
VOUT
0.1mA
5.3V
February 15, 2007
R
R
1
2
FN9131.3
LOAD
C
2