1 Features

1• Wide supply voltage range: 1.8 V to 36 V

• Adjustable threshold: down to 400 mV

• Open-drain outputs for over- and undervoltage

detection

• Low quiescent current: 7 μA (Typical)

• High threshold accuracy:

– 0.75% Over temperature

– 0.25% (Typical)

• Internal hysteresis: 5.5 mV (typical)

• Temperature range: –40°C to 125°C

• Package:

– SOT-6

2 Applications

• Industrial control systems

• Embedded computing modules

• DSPs, microcontrollers, and microprocessors

• Notebook and desktop computers

• Portable- and battery-powered products

• FPGA and ASIC systems

3 Description

The TPS3701 wide-supply voltage window detector

operates over a 1.8-V to 36-V range. The device has

two precision comparators with an internal 400-mV

reference and two open-drain outputs (OUTA and

OUTB) rated to 25 V for over- and undervoltage

detection. Use the TPS3701 as a window voltage

detector or as two independent voltage monitors; set

the monitored voltage with the use of external

resistors.

OUTA is driven low when the voltage at the INA pin

drops below the negative threshold, and goes high

when the voltage returns above the positive

threshold. OUTB is driven low when the voltage at

the INB pin rises above the positive threshold, and

goes high when the voltage drops below the negative

threshold. Both comparators in the TPS3701 include

built-in hysteresis for noise rejection, thereby

ensuring stable output operation without false

triggering.

The TPS3701 is available in a SOT-6 package and is

specified over the junction temperature range of

–40°C to 125°C.