PT7A7517P datasheet, PDF - EEWORLD Datasheet

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PT7A7517P: DescriptionPower Management Circuit, PDIP8; CategoryPower/power management The power supply circuit; File Size56KB，12 Pages; ManufacturerPericom Technology Inc

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PT7A7517P Overview

Power Management Circuit, PDIP8

PT7A7517P Parametric

Parameter Name	Attribute value
Maker	Pericom Technology Inc
package instruction	DIP, DIP8,.3
Reach Compliance Code	unknown
ECCN code	EAR99
JESD-30 code	R-PDIP-T8
Number of terminals	8
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	DIP
Encapsulate equivalent code	DIP8,.3
Package shape	RECTANGULAR
Package form	IN-LINE
power supply	3 V
Certification status	Not Qualified
Maximum supply current (Isup)	0.2 mA
Nominal supply voltage (Vsup)	3 V
surface mount	NO
Temperature level	INDUSTRIAL
Terminal form	THROUGH-HOLE
Terminal pitch	2.54 mm
Terminal location	DUAL

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Data Sheet

PT7A7511-7517/7521-7527/7531-7537

P Supervisor Circuits

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Features

• Precision supply-voltage monitor

- 4.63V (PT7A7511, 7521, 7531)

- 4.38V (PT7A7512, 7522, 7532)

- 3.08V (PT7A7513, 7523, 7533)

- 2.93V (PT7A7514, 7524, 7534)

- 2.63V (PT7A7515, 7525, 7535)

- 2.32V (PT7A7516, 7526, 7536)

- 2.20V (PT7A7517, 7527, 7537)

• 200ms reset pulse width

• Debounced TTL/CMOS-compatible manual-

reset input

• Independent watchdog timer 1.6sec time-out (not

available for PT7A7531 - 7537)

• Reset output signal:

- Active-low only (PT7A7511 - 7517)

- Active-high only (PT7A7521 - 7527)

- Active-high and active-low (PT7A7531 - 7537)

• Voltage monitor for power-fail or low battery warning

• Guaranteed RESET/RESET valid at V

= 1.2V

Introduction

The PT7A751X/752X/753X family microprocessor

(µP) supervisory circuits are targeted to improve

reliability and accuracy of power-supply circuitry in

µP systems. These devices reduce the complexity and

number of components required to monitor power-

supply and battery functions.

The main functions are:

1. Asserting reset output during power-µp, power-

down and brownout conditions for µP system;

2. Detecting power failure or low-battery conditions

with a 1.25V threshold detector;

3. Watchdog functions (not for PT7A753x).

Applications

• Power-supply circuitry in µP systems

PT0082(05/02)

Ver:1

Data Sheet

PT7A7511-7517/7521-7527/7531-7537

P Supervisor Circuits

Contents

Features ....................................................................................................................................................... 1

Block Diagram ............................................................................................................................................ 1

Introduction ................................................................................................................................................. 1

Pin Information ........................................................................................................................................... 4

Pin Configuration .............................................................................................................................. 4

Pin Description .................................................................................................................................. 4

Functional Description ................................................................................................................................ 5

Reset Output ...................................................................................................................................... 5

Watchdog Timer ................................................................................................................................ 5

Manual Reset ..................................................................................................................................... 5

Power-Fail Comparator ..................................................................................................................... 5

Function Reference Table .................................................................................................................. 6

Detailed Specifications ................................................................................................................................ 7

Absolute Maximum Ratings .............................................................................................................. 7

Recommended Operation Condition ................................................................................................. 7

DC Electrical Characteristics ............................................................................................................. 8

AC Electrical Characteristics ............................................................................................................. 9

Ordering Information ................................................................................................................................ 10

Mechanical Information ............................................................................................................................ 11

Notes ......................................................................................................................................................... 12

PT0082(05/02)

Ver:1

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