CAT863

更新时间： 2024-11-29 11:56:23

品牌	Logo	应用领域
安森美 - ONSEMI		微处理器监控
页数	文件大小	规格书
10页	203K
描述
3-Pin Microprocessor Power Supply Supervisors

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中文翻译

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数据手册

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CAT863 数据手册

CAT853, CAT863

CATCAT859, CAT869

3-Pin Microprocessor Power Supply Supervisors

DESCRIPTION

FEATURES

The CAT853, CAT863, CAT859, and CAT869 are

supervisory circuits that monitor power supplies in

digital systems.

Precision monitoring of +3.3 V (-5%, -10%), 5 V

(-10% Power Supplies)

Active low reset output

These devices generate a reset signal, which is

asserted while the power supply voltage is below a

preset threshold level and for at least 140 ms after the

power supply level has risen above that level. Industry

standard threshold levels are offered to support

+3.3 V or 5.0 V systems.

Reset valid down to V_CC= 1.0 V

6 µA power supply current

Power supply transient immunity

Industrial temperature range: -40ºC to +85ºC

RoHS-compliant SOT-23 package

¯¯¯¯¯¯

The CAT859 and CAT869 feature a RESET push-pull

output (active low) for the two pinout options.

APPLICATIONS

Computers

The CAT853 and CAT863 feature an open drain

¯¯¯¯¯¯

RESET output (active low). Both require a pull-up

Servers

resistor on the RESET output.

Laptops

Fast transients on the power supply are ignored and

the output is guaranteed to be in the correct state at

V_CClevels as low as 1.0 V.

Cable modems

Wireless communications

Embedded control systems

White goods

Power meters

For Ordering Information details, see page 9.

Intelligent instruments

PDAs and handheld equipment

PIN CONFIGURATION

THRESHOLD SUFFIX SELECTOR

Nominal Threshold

Voltage

Threshold Suffix

Designation

SOT-23 3-Lead

4.38 V

4.20 V

3.08 V

2.93 V

2.4 V

RESET

GND

RESET

CAT853

CAT859

CAT863

CAT869

GND

PIN DESCRIPTION

Pin Name Function

¯¯¯¯¯¯

Active low reset. RESET is asserted if V_CCfalls below the reset threshold and remains low for at

least 140 ms after V_CCrises above the reset threshold

¯¯¯¯¯¯

RESET

GND

V_CC

Ground

Power supply voltage that is monitored

Characteristics subject to change without notice

Doc. No. MD-3026, Rev. G

12 3 4 5 6 7...10

中文翻译

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