TL7702B, TL7733B, and TL7705B Supply-Voltage Supervisors

1 Features

• Power-On Reset Generator

• Automatic Reset Generation After Voltage Drop

• RESET Output Defined From VCC ≥ 1 V

• Precision Voltage Sensor

• Temperature-Compensated Voltage Reference

• True and Complement Reset Outputs

• Externally Adjustable Pulse Duration

2 Applications

• Wireless communication systems

• Factory automation

• Building automation

• Servers

• Notebooks and Desktop computers

• STB and DVR

3 Description

The TL7702B, TL7705B, and TL7733B are integrated-

circuit supply-voltage supervisors designed for use as

reset

controllers

in

microcomputer

and

microprocessor

systems.

The

supply-voltage

supervisor monitors the supply for undervoltage

conditions at the SENSE input. When an undervoltage

condition occurs during normal operation, outputs

RESET and RESET go active.

The TL7702BC, TL7705BC, and TL7733BC are

characterized for operation from 0°C to 70°C. The

TL7702BI,

TL7705BI,

and

TL7733BI

are

characterized for operation from –40°C to 85°C. The

TL7705BQ is characterized for operation from –40°C

to 125°C.

Device Information (1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

TL77xxBD

SOIC (8)

4.90 mm × 3.91 mm

TL77xxBP

PDIP (8)

9.81 mm × 6.35 mm

(1)

For all available packages, see the orderable addendum at

the end of the data sheet.

+

±

+

±

SENSE

CT

VCC

3

7

RESIN

2

GND

4

R1

(see Note 1)

R2

(see Note 1)

Reference

Voltage 1

VX

Reference

Voltage 2

8

1

6

5

RESET

RESET

REF

Copyright © 2016, Texas Instruments Incorporated

Functional Block Diagram

www.ti.com

TL7702B, TL7705B, TL7733B

SLVS037O – SEPTEMBER 1989 – REVISED DECEMBER 2020

Copyright © 2020 Texas Instruments Incorporated

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TL7702B, TL7705B, TL7733B

SLVS037O – SEPTEMBER 1989 – REVISED DECEMBER 2020

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.