16

LT4220

4220f

Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

©LINEAR TECHNOLOGY CORPORATION 2003

LT/TP 0403 2K • PRINTED IN USA

RELATED PARTS

PART NUMBER

DESCRIPTION

COMMENTS

LTC

Dual Hot Swap Controller

Two Circuit Breakers for Supplies from 3V to 12V and Supports –12V

LTC1422

Single Hot Swap Controller in SO-8

Operates from 3V to 12V

LTC1645

Dual Hot Swap Controller

Operates from 1.2V to 12V, Allows Supply Sequencing

LTC1647

Dual Hot Swap Controller

Operates from 2.7V to 16.5V, Separate ON Pins

LTC4211

Single Hot Swap Controller with Multifunction

2.5V to 16.5V, Active Inrush Limiting, Fast Comparator

Current Control

LTC4230

Triple Hot Swap Controller with Multifunction

1.7V to 16.5V, Active Inrush Limiting, Fast Comparator

Current Control

C6

1

µF

R2

R1

R4

R3

FAULT

TIMER

GND

TRACK

PWRGD

R10

R9

R12

R11

4220 F09

R7

10

Ω

R6

1k

R5

10

Ω

C1

10nF

R8

1k

C2

10nF

C3

100nF

Q1

SUB85N03-04

SENSEK

LT4220

Q2

SUB85N03-04

CONNECT FOR

AUTO RESTART

BACKPLANE

CONNECTOR

STAGGERED

PCB EDGE

CONNECTOR

GND MUST CONNECT FIRST

*TRANSIENT VOLTAGE SUPPRESSOR

GND

POWER GOOD

RPG

5.1k

CL1

CL2

C7

C8

12

11

8

9

6

716

15

14

10

13

5

4

3

2

1

R14

10

Ω

R13

10

Ω

Z2*

Z1*

C5

1

µF

C4

100nF

ESD

CONTROL

+

+

TYPICAL APPLICATIO

Figure 9. Hot Swap Controller on Mainboard with Tracking