IMP706S IMP, Inc., IMP706S Datasheet

IMP706S

Manufacturer Part Number

IMP706S

Description

Manufacturer

IMP, Inc.

Datasheet

1.IMP706S.pdf (9 pages)

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Download datasheet (278Kb)

The IMP706P/R/S/T/J and IMP708R/S/T/J CMOS supervisor circuits

monitor power-supply and battery voltage level, and P/ C operation.

A reset is generated when the supply drops below 2.63V (IMP706P/R,

IMP708R), 2.93V (IMP706S, IMP708S), 3.08V (IMP706T, IMP708T) or 4.00

(IMP706J, IMP708J).

The family offers several functional options. Each device generates a

reset signal during power-up, power-down and during brownout

conditions.

In addition, the IMP706P/R/S/T/J feature a 1.6 second watchdog timer.

The watchdog timer output will trigger a reset if connected to MR.

Unlike competitive devices, floating the WDI input pin disables the

watchdog timer.

The IMP708R/S/T/J have both active-HIGH and active-LOW reset out-

puts but no watchdog function. The IMP706P has the same pin-out and

functions as the IMP706R but has an active-HIGH reset output.

A versatile power-fail circuit, useful in checking battery levels and

non-5V supplies, has a 1.25V threshold. All devices have a manual

reset input.

All devices are available in 8-pin DIP, SO and the compact MicroSO

packages. The MicroSO package requires 50% less PC board area than

the conventional SO package.

3/3.3/4.0V

1999 IMP, Inc.

Block Diagrams

WDI

PFI

OWER

– Lo

– W

– Br

– Lo

– W

– Br

IMP706P/R/S/T/J

atc

20k

w suppl

2.63V (IMP706P/R)

2.93V (IMP706S)

3.08V (IMP706T)

4.00V (IMP706J)

wnout det

Transition

ANAGEMENT

Detector

–

hdog timer

1.25V

Generator

Watchdog

Timebase

y cur

P Super

RESET

Timer

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

–

ection

GND

ent

visor Cir

706P_01.eps

WDO

RESET

(RESET) IMP706P

PFO

408-432-9100/www.impweb.com

cuits

PFI

Computers and controllers

CTI applications

Embedded controllers

Battery operated systems

Intelligent instruments

Wireless communication systems

PDAs and handheld equipment

Lower power, pin compatible replacements for

Maxim MAX706P/R/S/T, MAX708R/S/T

Precision power supply monitor

Debounced manual reset input

Auxiliary voltage monitor comparator

200ms reset time delay

Three reset signal options

DIP, SO and MicroSO packages

Guaranteed RESET assertion to V

– 30% lower supply current:140µA vs. 200µA

– 2.63V threshold (IMP706P/R, IMP708R)

– 2.93V threshold (IMP706S, IMP708S)

– 3.08V threshold (IMP706T, IMP708T)

– New 4.00V threshold (IMP706J, IMP708J)

– 1.25V threshold

– Battery monitor/auxiliary supply monitor

Watchdog timer (IMP706P/R/S/T/J)

– Watchdog can be disabled by floating WDI

– Active HIGH: IMP706P

– Active LOW: IMP706R/S/T/J

– Active HIGH & LOW outputs: IMP708R/S/T/J

IMP708R/S/T/J

20k

2.63V (IMP708R)

2.93V (IMP708S)

3.08V (IMP708T)

4.00V (IMP708J)

–

1.25V

Generator

RESET

Key Features

Applications

–

GND

= 1.1V

706P_02.eps

RESET

PFO

Related parts for IMP706S

IMP706S Summary of contents

Page 1

... The IMP706P/R/S/T/J and IMP708R/S/T/J CMOS supervisor circuits monitor power-supply and battery voltage level, and P/ C operation. A reset is generated when the supply drops below 2.63V (IMP706P/R, IMP708R), 2.93V (IMP706S, IMP708S), 3.08V (IMP706T, IMP708T) or 4.00 (IMP706J, IMP708J). The family offers several functional options. Each device generates a reset signal during power-up, power-down and during brownout conditions ...

Page 2

... IMP706PESA 8-SO IMP706RCPA 8-Plastic DIP IMP706RCSA 8-SO IMP706RCUA 8-MicroSO IMP706REPA 8-Plastic DIP IMP706RESA 8-SO IMP706SCPA 8-Plastic DIP IMP706SCSA 8-SO IMP706SCUA 8-MicroSO IMP706SEPA 8-Plastic DIP IMP706SESA 8-SO IMP706TCPA 8-Plastic DIP IMP706TCSA 8-SO IMP706TCUA 8-MicroSO IMP706TEPA 8-Plastic DIP IMP706TESA 8-SO IMP706JCPA 8-Plastic DIP IMP706JCSA 8-SO IMP706JCUA 8-MicroSO IMP706JEPA 8-Plastic DIP IMP706JESA ...

Page 3

... 1999 IMP, Inc. © IMP706P/R/S/T/J, IMP708R/S/T/J IMP706P/R/S/T/J, IMP708R/S/T/J Operating Temperature Range IMP706xE, IMP708xE . . . . . . . . . . . . . . . . . . – + 0.3V) IMP706xC, IMP708xC . . . . . . . . . . . . . . . . . . + Storage Temperature Range . . . . . . . . . . . . . . – +160 C Lead Temperature Soldering (10 sec 300 C These are stress ratings only and functional operation is not implied. ...

Page 4

Page 5

... 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 1999 IMP, Inc. ...

Page 6

... HIGH. The IMP706P has a single active HIGH reset and the IMP706/R/S/T/J devices have an active LOW reset output. IMP Part RESET Polarity Threshold Watchdog Timer IMP706P HIGH 2.63V IMP706R LOW 2.63V IMP706S LOW 2.93V IMP706T LOW 3.08V IMP706J LOW 4.00V IMP708R Both: HIGH & ...

Page 7

... CC IMP70x Supply Voltage 4.7k RESET GND Bi-directional I/O Pin (Example: 68HC11) 1999 IMP, Inc. © IMP706P/R/S/T/J, IMP708R/S/T/J IMP706P/R/S/T/J, IMP708R/S/T/J Ensuring That RESET is Valid Down to V When V CC IMP708R/S/T/J RESET reset outputs no longer pull down; it becomes indeterminate. To avoid the possibility that stray charges could build up and force RESET to the wrong state, a pull-down ...

Page 8

... 408-432-9100/www.impweb.com MicroSO (8-Pin 0.10mm e 0.004in MicroSO (8-Pin).eps (8-Pin) 0 – (8-Pin).eps Plastic DIP (8-Pin – Plastic DIP (8-Pin)a.eps 1999 IMP, Inc. © ...

Page 9

... Fax: 408-434-0335 Fax-on-Demand: 1-800-249-1614 (USA) Fax-on-Demand: 1-303-575-6156 (International) e-mail: info@impinc.com http://www.impweb.com The IMP logo is a registered trademark of IMP, Inc. All other company and product names are trademarks of their respective owners. IMP706P/R/S/T/J, IMP708R/S/T/J IMP706P/R/S/T/J, IMP708R/S/T/J © 1999 IMP, Inc. ...

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