1 Features

1• Wide supply voltage range: 1.8 V to 18 V

• Adjustable threshold: down to 400 mV

• High threshold accuracy:

– 1.0% over temperature

– 0.25% (Typical)

• Low quiescent current: 5.5 μA (Typical)

• Open-drain outputs for overvoltage and

undervoltage detection

• Internal hysteresis: 5.5 mV (Typ)

• Temperature range: –40°C to 125°C

• Packages:

– SOT-6

– 1.5-mm × 1.5-mm WSON-6

2 Applications

• Industrial control systems

• Automotive systems

• Embedded computing modules

• DSP, microcontroller, or microprocessor

applications

• Notebook and desktop computers

• Portable- and battery-powered products

• FPGA and ASIC applications

3 Description

The TPS3700 wide-supply window voltage detector

operates over a 1.8-V to 18-V range. The device has

two high-accuracy comparators with an internal 400-

mV reference and two open-drain outputs rated to 18

V for over- and undervoltage detection. The TPS3700

can be used as a window voltage detector or as two

independent voltage monitors; the monitored voltage

can be set with the use of external resistors.

OUTA is driven low when the voltage at INA+ drops

below (VITP – VHYS), and goes high when the voltage

returns above the respective threshold (VITP). OUTB

is driven low when the voltage at INB– rises above

VITP, and goes high when the voltage drops below the

respective threshold (VITP – VHYS). Both comparators

in the TPS3700 include built-in hysteresis for filtering

to reject brief glitches, thereby ensuring stable output

operation without false triggering.

The TPS3700 is available in a SOT-6 and a 1.5-mm

× 1.5-mm WSON-6 package and is specified over the

junction temperature range of –40°C to 125°C.