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FEATURES

DESCRIPTION

APPLICATIONS

1

2

3

5

4

SENSE

V

DD

RSTSENSE

GND

RSTVDD

TPS3807

DCK Package

SC70−5

(Top View)

V

DD

GND

SENSE

Battery Good

Battery Enable

System Supply

RSTSENSE

RSTVDD

TPS3807

Typical Application Circuit

Supply 2

Battery

TPS3807

SBVS061B – AUGUST 2005 – REVISED DECEMBER 2006

Low Quiescent Current, Dual-Channel Supervisory Circuit

• Two Supply Monitors in One Package

The TPS3807 family microprocessor supervisory

circuits monitor system voltages as low as 1.225V.

• One Monitor with Fixed High-Accuracy

These devices assert an open-drain RSTVDD signal

Thresholds for System Supply Monitoring

when

the

• Second Monitor with Variable Threshold and

threshold. The RSTVDD output remains asserted

30mV Hysteresis to Provide Failsafe

• Very Low Quiescent Current: 3.5µA typ

device also provides an additional RSTSENSE

output for a SENSE input with adjustable thresholds

• High Threshold Accuracy: 1% max

and hysteresis.

(0

°C to +85°C)

The TPS3807 uses a precision reference to achieve

• Open-Drain Reset Outputs

1% threshold accuracy. The TPS3807 has a very low

• Temperature Range: –40°C to +85°C

typical quiescent current of 3.5

µA, so it is well-suited

• Ultra-Small SC70-5 Package

to battery-powered applications. It is available in a

small SC70-5 package, which is half the size of a

SOT-23 package, and is fully specified over a

temperature range of –40

°C to +85°C.

• DSP, Microcontroller, or Microprocessor

Applications Requiring User-Selected Delay

Times

• Notebook/Desktop Computers

• PDAs and SmartPhones

• Other Hand-Held Products

• Portable, Battery-Powered Products

• FPGA/ASIC Applications

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2005–2006, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.