TLV8x3 3-Pin Voltage Supervisors with Active-Low, Open-Drain Reset

1 Features

• 3-Pin SOT23 Package

• Supply Current: 9 µA (Typical)

• Precision Supply Voltage Monitor:

2.5 V, 3 V, 3.3 V, 5 V

• Power-On Reset Generator with

Fixed Delay Time of 200 ms

• Pin-for-Pin Compatible with MAX803

• Temperature Range: –40°C to +125°C

• Open-Drain, RESET Output

2 Applications

• Factory Automation

• Portable and Battery-Powered Equipment

• Set-Top Boxes

• Servers

• Appliances

• Electricity Meters

• Building Automation

3 Description

The TLV8x3 family of supervisory circuits provides

circuit initialization and timing supervision, primarily

for DSPs and processor-based systems.

The TLV803, TLV853, and TLV863 are functionally

equivalent. The TLV853 and TLV863 provide an

alternate pinout of the TLV803. The newer TLV803E

device is a pin-to-pin alternative to all of these 3.

During power on, RESET asserts when the supply

voltage (VDD) exceeds 1.1 V. Thereafter, the

supervisory circuit monitors VDD and keeps RESET

active as long as VDD remains below the threshold

voltage VIT. An internal timer delays the return of the

output to the inactive state (high) to ensure proper

system reset. The delay time (td(typ) = 200 ms) starts

after VDD exceeds the threshold voltage, VIT. When

the supply voltage drops below the VIT threshold

voltage, the output is active (low) again. All the

devices in this family have a fixed sense-threshold

voltage (VIT) set by an internal voltage divider.

The product spectrum is designed for supply voltages

of 2.5 V, 3 V, 3.3 V, and 5 V. These devices are

available in a 3-pin SOT-23 package. The TLV803

devices are characterized for operation over a

temperature range of –40°C to +125°C.

Device Information (1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

TLV8x3

SOT-23 (3)

2.92 mm × 1.30 mm

(1)

For all available packages, see the package option

addendum at the end of the data sheet.

3.3V

TLV803S

DSP/FPGA/ASIC

GND

GND

RESET

RESET

V

DD

3.3-VLDO

GND

OUT

IN

5V

V

DD

Typical Application

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TLV803, TLV853, TLV863

SBVS157E – APRIL 2011 – REVISED DECEMBER 2020

Copyright © 2020 Texas Instruments Incorporated

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Product Folder Links: TLV803 TLV853 TLV863

TLV803, TLV853, TLV863

SBVS157E – APRIL 2011 – 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.