Datasheet > LTC1985-1.8

LTC1985-1.8

更新时间： 2022-12-13 11:18:48

品牌	Logo	应用领域
凌特 - Linear		监视器
页数	文件大小	规格书
8页	138K
描述
Micropower Precision Triple Supply Monitor with Push-Pull Reset Output in a 5-Lead SOT-23 Package

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LTC1985-1.8 数据手册

Final Electrical Specifications

LTC1985-1.8

Micropower Precision

Triple Supply Monitor

with Push-Pull Reset Output

in a 5-Lead SOT-23 Package

March 2000

FEATURES

DESCRIPTIO

The LTC^®1985-1.8 is a triple supply monitor intended for

systems with multiple supply voltages. The reset output

remains low until all three supplies have been in compli-

ance for 200ms. Tight 1.5% accuracy specifications and

glitch immunity ensure reliable reset operation without

false triggering.

■

Monitors Three Inputs Simultaneously:

3V, 1.8V and Adjustable

■

±1.5% Threshold Accuracy Over Temperature

■

Very Low Supply Current: 10µA Typ

■

200ms Reset Time Delay

■

Power Supply Glitch Immunity

■

Guaranteed RESET for V_CC3≥ 1V or V_CC18≥ 1V

The RST output is guaranteed to be in the correct state for

V_CC18or V_CC3down to 1V. The LTC1985 may also be

configured to monitor any one or two V_CCinputs instead

of three, depending on system requirements.

■

3V Active-Low Push-Pull Reset Output

■

5-Lead SOT-23 Package

APPLICATIO S

Verylow(10µAtypical)supplycurrentmakestheLTC1985

ideal for power conscious systems.

■

Desktop Computers

■

The LTC1985 is available in a 5-lead SOT-23 package.

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

Notebook Computers

■

Intelligent Instruments

■

Portable Battery-Powered Equipment

■

Network Servers

TYPICAL APPLICATIO

1.8V

2.5V

DC/DC

CONVERTER

SYSTEM

LOGIC

RST

CC3

LTC1985-1.8

CC18

130k

0.1µF

CCA

100k

GND

0.1µF

1985-1.8 TA01

Information furnished by Linear Technology Corporation is believed to be accurate and reliable.

However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-

tation that the interconnection ofits circuits as described herein willnotinfringe on existing patentrights.

12 3 4 5 6 7 8

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