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.