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LTLT

更新时间： 2024-01-25 07:28:34

品牌	Logo	应用领域
凌特 - Linear		控制器
页数	文件大小	规格书
12页	217K
描述
Overvoltage Protection Controller

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中文翻译

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数据手册

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LTLT 数据手册

LTC1696

Overvoltage Protection

Controller

FEATURES

DESCRIPTIO

±2% Overvoltage Threshold Accuracy

The LTC^®1696 is a standalone power supply overvoltage

monitorandprotectiondevicedesignedtoprotectapower

supplyloadintheeventofanovervoltagefault. Itmonitors

two adjustable output voltages. If an overvoltage condi-

tion is detected, the output drives either an external SCR

crowbar or turns off external back-to-back N-channel

MOSFETs, thereby, disconnecting the input voltage from

the power supply.

■

Low Profile (1mm) ThinSOT^TMPackage

■

Gate Drive for SCR Crowbar or External N-Channel

Disconnect MOSFET

Monitors Two Output Voltages

Senses Output Voltages from 0.8V to 24V

Wide Supply Range: 2.7V to 27V

■

Multifunction TIMER/RESET Pin

Pin 6 offers three functions. By connecting a capacitor to

this pin, the internal glitch filter time delay can be pro-

grammed. Without the capacitor, the default time delay is

determined by an internal capacitor. This pin also serves

as a reset input to clear the internal latch after an overvolt-

age fault condition. By pulling it high, the OUT pin is

activated if the FB1 and FB2 voltages remain below the trip

threshold.

APPLICATIO S

■

Telecommunication Systems

■

Computer Systems

■

Industrial Control Systems

■

Notebook Computers

TheLTC1696isavailableinthelowprofile(1mm)ThinSOT

package.

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

ThinSOT is a trademark of Linear Technology Corporation.

TYPICAL APPLICATIO

SCR Crowbar

Overvoltage Response

OUT2

POWER

SUPPLY

12V

OUT1

FB1

0.5V/DIV

3.3V

137k

232k

TIMER/RESET

2V/DIV

TIMER/

FB1

RESET

1nF

RESET

44.2k

2N7002

LTC1696

I_OUT

20mA/DIV

GND

FB2

44.2k

C1 = 1nF

OUT

100µs/DIV

1696 TA02

SCR

2N6507

0.1µF

1696 TA01

12 3 4 5 6 7...12

中文翻译

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