Datasheet > IMP1232LPSN

IMP1232LPSN

更新时间： 2024-02-08 18:21:12

品牌	Logo	应用领域
IMP		/
页数	文件大小	规格书
7页	106K
描述
5V レP Power Suppl er Supply Monit y Monitor and or and Reset Cir eset Circuit

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IMP1232LPSN 技术参数

生命周期：	Contact Manufacturer	包装说明：	,
Reach Compliance Code：	unknown	风险等级：	5.71
Is Samacsys：	N	Base Number Matches：	1

IMP1232LPSN 数据手册

IMP1232LP/LPS

OWER

ANAGEMENT

Key Features

5V µP Power Supply Monitor and

Reset Circuit

ꢀ

Pin compatible with the Dallas Semiconductor

DS1232LP/ 1232LPS

— 40% lower supply current

– Selectable Trip-Point Tolerance

and Watchdog Period

– Push-Button Reset

ꢀ

5V supply monitor

Selectable watchdog period

Debounce manual push-button reset input

Precision temperature-compensated voltage

reference and comparator

Power-up, power-down and brownout detection

250ms reset time

Active LOW open-drain reset and active HIGH

push-pull output

Selectable trip point tolerance: 5% or 10%

Low-cost, surface mount packages: 8/ 16-pin

SO, 8-pin DIP and 8-pin MicroSO

Wide operating temperature –40°C to +85°C

The IMP1232LP/ LPS microprocessor supervisor can halt and restart a

“hung-up” or “stalled” microprocessor, restart a microprocessor after a

power failure, and debounce and interface a manual push-button micro-

processor reset switch. The low-power supervisors feature 40% lower

supply current than the pin compatible Dallas Semiconductor

DS1232LP/ LPS.

ꢀ

Precision temperature compensated reference and comparator circuits

monitor the 5V, V input voltage. During power-up or when the V

ꢀ

power supply falls outside selectable tolerance limits, both the RESET

and RESET become active. When V_CCrises above the threshold voltage,

the reset signals remain active for an additional 250ms minimum,

allowing the power supply and system microprocessor to stabilize. The

trip point tolerance signal, TOL, selects the trip level tolerance to be

either 5- or 10-percent.

ꢀ

(N/ EPA suffixed devices)

Each device has both a push-pull, active HIGH reset output and an open

drain, active LOW reset output.

150ms, 610ms and 1,200ms. If the ST input is not strobed

A debounced manual reset input activates the reset outputs for a mini- LOW before the time-out period expires, a reset is issued.

mum period of 250ms.

Devices are available in 8-pin DIP, 8/ 16-pin SO and com-

Also included is a watchdog timer to stop and restart a microprocessor pact 8-pin MicroSO packages.

that is “hung-up”. Three watchdog time-out periods are selectable:

Block Diagram

8 (15)

6 (11)

5 (9)

V_CC

RESET

IMP1232LP/LPS

3 (6)

(16-Pin Package)

5%/10% Tolerance

Selection

TOL

–

Reference

V_CC

40kΩ

1 (2)

2 (4)

Push Button

Debounce

PBRST

Watchdog

Timebase Selection

Reset &

Watchdog Timer

7 (13)

Watchdog

Transition Detector

4 (8)

GND

408-432-9100/ www.impweb.com

1232_03.eps

1999 IMP, Inc.

12 3 4 5 6 7

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与IMP1232LPSN相关器件

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IMP1232LPSN-2	A1PROS	5V μP Power Supplly Moniittor and Ressett Cii	获取价格
IMP1232LPSN-2	IMP	5V レP Power Suppl er Supply Monit y Monitor a	获取价格
IMP1233D	IMP	Low Power, 5V, P Reset	获取价格
IMP1233D	A1PROS	Low Power,, 5V - Ressett- Acttiive LOW,, Open--Draiin Outtputt	获取价格
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IMP1233D-10/S	ETC	Voltage Detector	获取价格

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