Datasheet > TS803R

TS803R

更新时间： 2024-11-07 22:19:07

品牌	Logo	应用领域
TSC		微处理器复位电路
页数	文件大小	规格书
5页	135K
描述
Microprocessor Reset Circuit

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中文翻译

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数据手册

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TS803R 数据手册

TS803R

Microprocessor Reset Circuit

Pin assignment

TS803R

Open Drain

Threshold Voltage Option

2.7V, 2.93V, 4.2V

1. RESET

2. Gnd

3. Vcc

General Description

The TS803R are microprocessor (µP) supervisory circuit used to monitor the power supplies in µP and digital systems.

They provide excellent circuit reliability and low cost by eliminating external components and adjustments when used with

+5V, +3.3V, +3.0V powered circuits. These circuits perform a single function: they assert a reset signal whenever the

VCC supply voltage declines below a preset threshold, keeping it asserted for at least 140ms after VCC has risen above

the reset threshold. Reset thresholds suitable for operation with a variety of supply voltages are available. The TS803R

are open –drain outputs. The TS803R have an active low RESET output, while the TS803R has an active high RESET

output. The reset comparator is designed to ignore fast transients on VCC, and the output guaranteed to be in the correct

logic state for VCC down to 1V. Low supply correct makes the TS803R ideal for use in portable equipment.

The TS803R is available in a 3-pin SOT-23 package.

Features

Ordering Information

ꢀ

Precision monitoring of +3V, +3.3V and +5V

Part No.

Enable

Threshold Package

Voltage

power supply voltage

Function

ꢀ

Fully specified over temperature

Available in three output configurations

Open – Drain RESET low output

3uA supply current

TS803RCX B

TS803RCX E

TS803RCX F

Active-Low

4.2V

SOT-23

2.93V

2.7V

Note: x is the threshold voltage type, option as

Guaranteed reset valid to Vcc = +1V

Power supply transient immunity

No external components

B: 4.20V

E: 2.93V

F: 2.70V

Applications

Pin Descriptions

ꢀ

Computers

Pin No.

Name

Description

Controllers

RESET

Reset output pin

Intelligent instruments

Critical uP and uC power monitoring

Portable / Battery powered equipment

Automotive

(Active- Low)

Gnd

Vcc

Ground

Operating voltage input

Absolute Maximum Rating

Supply Voltage

V_CC

V_RESET

I_CC

RESET & (RESET) push-pull

Input Current, Vcc

- 0.3 ~ (V_CC+0.3)

V/uS

Output Current, RESET

Rate of Rise, Vcc

I_O

V_R

100

TS803R

1-1

2003/12 rev. E

12 3 4 5

中文翻译

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