Datasheet > IMP706PCPA

IMP706PCPA

更新时间： 2024-01-16 11:23:34

品牌	Logo	应用领域
IMP		监控
页数	文件大小	规格书
8页	227K
描述
3/3.3/4.0V レP SUPERVISOR CIRCUITS

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IMP706PCPA 技术参数

生命周期：	Contact Manufacturer	包装说明：	,
Reach Compliance Code：	unknown	风险等级：	5.7
Is Samacsys：	N	Base Number Matches：	1

IMP706PCPA 数据手册

IMP706P/R/S/T/J, IMP708R/S/T/J

Pin Descriptions

Pin Number

IMP706R/S/T/J IMP708R/S/T/J

DIP/SO MicroSO DIP/SO MicroSO DIP/SO MicroSO Name

IMP706P

Function

Manual reset input. The active LOW input triggers

a reset pulse. It is pulled HIGH by a 20kΩ pull-up

resistor. It is compatible with TTL/CMOS signals

when V_CC= 5V. It can be shorted to ground

through a mechanical switch. Leave floating or

connect to V_CCif the function is not used.

V_CC

GND

Monitored power supply input.

Ground

Power-fail input voltage monitor. With PFI less than

1.25V, PFO goes LOW. Connect PFI to ground

when not used.

Power-fail output. The output is active LOW and

sinks current when PFI is less than 1.25V. If not

used, leave the pin unconnected.

PFI

PFO

Watchdog input. WDI controls the internal watchdog

timer. A HIGH or LOW signal for 1.6 sec at WDI

allows the internal timer to run-out, setting WDO low.

A rising or falling edge must occur at WDI within

1.6 seconds or WDO goes LOW. The watchdog

function is disabled by floating WDI. The internal

watchdog timer clears when: RESET is asserted;

WDI is three-stated; or WDI sees a rising or falling edge.

—

WDI

—

Not connected.

Active-LOW reset output. Pulses LOW for 200ms

when triggered, and stays LOW whenever V_CCis

below the reset threshold. RESET remains LOW for

200ms after V_CCrises above the RESET threshold

or MR goes from HIGH to LOW. A watchdog timeout

will not trigger RESET unless WDO is connected to MR.

RESET

Watchdog output.

goes LOW when the 1.6

WDO

second internal watchdog timer times-out and does

not go HIGH until a transition occurs at WDI. In

addition, when V_CCfalls below the reset threshold,

WDO goes LOW. Unlike RESET, WDO does not have

a minimum pulse width and as soon as V_CCexceeds

the reset threshold, WDO becomes HIGH with no delay.

—

WDO

—

RESET

Active-HIGH reset output. RESET is the inverse of

RESET.

Feature Summary

IMP706P IMP706R IMP706S IMP706T IMP706J IMP708R IMP708S IMP708T IMP708J

Power-fail detector

Brownout detection

Debounced manual RESET input

Power-up/down RESET

Watchdog timer

ꢁ

Active-HIGH RESET

Active-LOW RESET

ꢁ

Active-LOW and HIGH RESETs

RESET threshold

ꢁ

2.63V

2.93V

3.08V

4.00V

2.63V

2.93V

3.08V

4.00V

1999 IMP, Inc.

408-432-9100/www.impweb.com

1 2 3 456 7 8

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