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LTC4252-1IMS8-TRPBF

Negative Voltage Hot Swap Controllers

Linear Technology 

LTC4252-1/LTC4252-2

LTC4252A-1/LTC4252A-2

TYPICAL APPLICATION

–48RTN

–48RTN

(SHORT PIN)

R1

402k

1%

R2

32.4k

1%

CT

150nF

C1

10nF

PUSH

RESET

RIN

2× 5.1k IN SERIES

1/4W EACH

CL +

100μF

LOAD

DDIDNZ†13B**

1

VIN

LTC4252-1

7 UV/OV

6

DRAIN

8

TIMER

5

GATE

2

SS

3

VEE SENSE

CSS

4

27nF

CIN

1μF

RD

1M

R3

22Ω

RC

10Ω

CC

22nF

VOUT

Q1

IRF540S

RS

0.01Ω

– 48V

**DIODES, INC †RECOMMENDED FOR HARSH ENVIRONMENTS

425212 F24

Figure 24. – 48V/5A Application

RELATED PARTS

PART NUMBER

LT1640AH/LT1640AL

LT1641-1/LT1641-2

LTC1642

LTC4214

LTC4220

LT4250

LTC4251/LTC4251-1

LTC4253

DESCRIPTION

Negative High Voltage Hot Swap Controllers in SO-8

Positive High Voltage Hot Swap Controllers in SO-8

Fault Protected Hot Swap Controller

Negative Voltage Hot Swap Controller

Dual Supply Hot Swap Controller

– 48V Hot Swap Controller in SO-8

–48V Hot Swap Controllers in SOT-23

–48V Hot Swap Controller with Sequencer

COMMENTS

Negative High Voltage Supplies from –10V to – 80V

Supplies from 9V to 80V, Latched Off/Autoretry

3V to 16.5V, Overvoltage Protection up to 33V

Operates from –6V to –16V

±2.2V to ±16.5V Operation

Active Current Limiting, Supplies from –20V to –80V

Fast Active Current Limiting, Supplies from –15V

Fast Current Limiting with Three Sequenced Power Good Outputs,

Supplies from –15V

36 Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com

425212fd

LT 0312 REV D • PRINTED IN USA

© LINEAR TECHNOLOGY CORPORATION 2001

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