Datasheet > LT1640H

LT1640H

更新时间： 2024-01-24 11:17:40

品牌	Logo	应用领域
凌特 - Linear		控制器
页数	文件大小	规格书
12页	295K
描述
Negative Voltage Hot Swap Controller

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中文翻译

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数据手册

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LT1640H 数据手册

LT1640L/LT1640H

Negative Voltage

Hot Swap Controller

DESCRIPTION

FEATURES

■

Allows Safe Board Insertion and Removal

The LT^®1640L/LT1640H is an 8-pin, negative voltage Hot

Swap^TMcontroller that allows a board to be safely inserted

and removed from a live backplane. Inrush current is

limited to a programmable value by controlling the gate

voltage of an external N-channel pass transistor. The pass

transistor is turned off if the input voltage is less than the

programmable undervoltage threshold or greater than the

overvoltage threshold. A programmable electronic circuit

breaker protects the system against shorts. The PWRGD

(LTC1640L)orPWRGD(LTC1640H)signalcanbeusedto

directly enable a power module. The LT1640L is designed

for modules with a low enable input and the LT1640H for

modules with a high enable input.

from a Live –48V Backplane

■

Operates from –10V to –80V

■

Programmable Inrush Current

■

Programmable Electronic Circuit Breaker

■

Programmable Overvoltage Protection

■

Programmable Undervoltage Lockout

■

Power Good Control Output

APPLICATIONS

■

Central Office Switching

■

–48V Distributed Power Systems

■

Negative Power Supply Control

The LT1640L/LT1640H is available in 8-pin PDIP and SO

packages.

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

Hot Swap is a trademark of Linear Technology Corporation.

TYPICAL APPLICATION

Input Inrush Current

GND

562k

CONTACT

BOUNCE

UV = 37V

OV = 71V

9.09k

LT1640L

PWRGD

10k

SENSE

GATE

DRAIN

33nF

24V

10k

10Ω

3.3nF

100V

0.02Ω

–48V

IRF530

ON/OFF

–

OUT

SENSE

0.1µF

100V

100µF

TRIM

100µF

16V

100V

–

SENSE

–

OUT

1640 F07b

1640 TA01

LUCENT

JW050A1-E

12 3 4 5 6 7...12

中文翻译

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LT1640HIS8#TR	Linear	获取价格	LT1640 - Negative Voltage Hot Swap Controller; Package: SO; Pins: 8; Temperature Range: -4
LT1640HIS8#TRPBF	Linear	获取价格	LT1640 - Negative Voltage Hot Swap Controller; Package: SO; Pins: 8; Temperature Range: -4
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