LTC4219 データシートの表示（PDF） - Linear Technology

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LTC4219

5A Integrated Hot Swap Controller

Linear Technology 

Functional Diagram

LTC4219

INTERNAL 7.5mΩ

SENSE

VDD SENSE RESISTOR (EXPOSED PAD)

–

CS

+–

+

CM

1.235V +

EN1

EN1

–

INTERNAL 25mΩ

MOSFET

CHARGE

PUMP

AND GATE

DRIVER

f = 2MHz

OUT

INRUSH

LOGIC

GATE

6.15V

OUT

0.3V/ms

CLAMP

0.6V POSITIVE

TEMPERATURE

COEFFICIENT

X1

REFERENCE

IMON

ISET

RISET

20k

FOLDBACK

0.6V

FB

OUT

*

PG

**

1.235V

PG

1.235V +

EN2

EN2

0.21V +

FLT

–

TM1

INTVCC

–

100µA

VDD

2.73V

TIMER

–

UVLO1

+

* 100k (LTC4219-5)

150k (LTC4219-12)

** 40k (LTC4219-5)

20k (LTC4219-12)

1.235V

+

TM2

–

GND

2µA

VDD

3.1V

GEN

INTVCC

UVLO2

2.65V

4219 BD

For more information www.linear.com/LTC4219

4219fd

9

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