Datasheet > LTC1642

LTC1642

更新时间： 2024-11-06 14:58:11

品牌	Logo	应用领域
亚德诺 - ADI		控制器
页数	文件大小	规格书
16页	243K
描述
热插拔控制器

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中文翻译

获取价格

数据手册

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LTC1642 数据手册

LTC1642

Hot Swap Controller

DESCRIPTIO

FEATURES

The LTC^®1642 is a 16-pin Hot Swap^TMcontroller that

allows a board to be safely inserted and removed from a

live backplane. Using an external N-Channel pass transis-

tor, the board supply voltage can be ramped up at an

adjustable rate. A high side switch driver controls the

N-Channel gate for supply voltages above 2.97V.

■

Adjustable Undervoltage and Overvoltage

Protection

■

Foldback Current Limit

■

Adjustable Current Limit Time-Out

■

Protected Against Surges to 33V

■

Single Channel NFET Driver

■

Latch Off or Automatic Retry on Current Fault

TheSENSEpinallowsfoldbacklimitingoftheloadcurrent,

with circuit breaker action after an adjustable delay time.

The delay allows the part to power-up in current limit. The

CRWBR output can be used to trigger an SCR for crowbar

protection of the load if the input supply exceeds an

adjustable threshold. The RESET output can generate a

system reset with adjustable delay when the supply

voltage falls below an adjustable threshold. The ON

pin cycles the board power. The LTC1642 is available in

the 16-pin SSOP package.

■

Driver for SCR Crowbar on Overvoltage

■

Adjustable Reset Timer

■

Reference Output with Uncommitted Comparator

■

16-Pin SSOP Package

APPLICATIO S

■

Hot Board Insertion

■

Electronic Circuit Breaker

InfiniBand^TMSystems

■

, LTC and LT are registered trademarks of Linear Technology Corporation. Hot Swap is

a trademark of Linear Technology Corporation. All other trademarks are the property of

their respective owners.

TYPICAL APPLICATIO

0.010Ω

BACKPLANE

12V

PLUG-IN CARD

FDS6630A

12V

AT 2.5A

(SHORT PIN)

LOAD

110k

100Ω

330Ω

1N4705

18V

107k

0.047µF

SENSE

GATE

POWER-GOOD = 11.4V

RESET

UV = 10.8V

LTC1642

MCR

12DC

CRWBR

2.87k

–

2N2222

COMP

FAULT

COMP

13k

COMPOUT

REF

OV = 13.2V

GND BRK TMR

RST TMR

11.3k

0.33µF

0.1µF

0.01µF

1642 TA01

GND

1642fb

12 3 4 5 6 7...16

中文翻译

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