ISL6144 データシートの表示（PDF） - Intersil

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ISL6144

High Voltage ORing MOSFET Controller

Intersil 

Simplified Block Diagram

SOURCE 2

9V TO 75V

ISL6144

D2*

F2**

SOURCE 1

9V TO 75V

VIN

C1

5.5V

HVREF

FAULT

C1

VIN GATE VOUT R1 C2

HVREF COMP

ISL6144

FAULTGND VSET

D1*

R2

* D1, D2 PARASITIC DIODES

**F1, F2 FUSES COULD ALSO BE PLACED

ON THE INPUT SIDE BEFORE THE VIN PIN. THIS

PLACEMENT DEPENDS ON POWER SYSTEM

ARCHITECTURE.

GATE LOGIC AND

CHARGE PUMP

GATE

F1**

VOUT

LOAD

LEVEL

SHIFT

DELAY

100µs

2A* 5mA

FAULT

DETECTION

-

+

REG

AMPLIFIER

-

+

HS

COMP

20mV

-+

HIGH

VOLTAGE

PASS

AND

CLAMPING

5.3V

0.1mA

COMP

VSET

-

+

UV

COMP

0.6V

BIAS

AND

REF

R1 C2

R2

1.5mA

GND

1.5mA

0.2 mA

4

FN9131.5

October 8, 2010

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