1 Features
• Input Voltage Range: 2V to 18V
• High threshold accuracy:
– 0.25% (typical)
– 0.9% (–40°C to 125°C)
• Fixed window thresholds optimized for nominal
rails between 1V and 5V
• Open-drain outputs for overvoltage and
undervoltage indication
• Internal glitch immunity
• Threshold adjust using the SET pin
• Low quiescent current: 7μA (typical)
• Internal threshold hysteresis: 0.55%, 1.0%
• SOT-6 package

2 Applications
• FPGA and ASIC applications
• DSP-based systems
• Industrial control systems
• Factory automation
• Personal electronics
• Building automation
• Motor drives

3 Description
The TPS3702 is an integrated overvoltage and
undervoltage window voltage detector in a small
SOT-6 package. This highly accurate voltage detector
is an excellent choice for systems that operate on
low-voltage supply rails and have narrow margin
supply tolerances. Low threshold hysteresis options
of 0.55% and 1.0% prevent false reset signals when
the monitored voltage supply is in the normal range
of operation. Internal glitch immunity and noise filters
further eliminate false resets resulting from erroneous
signals.
The TPS3702 does not require any external resistors
for setting overvoltage and undervoltage reset
thresholds, which further increases overall accuracy
and reduces solution size and cost. The SET
pin is used to select between the two available
threshold voltages designed into each device. A
separate SENSE input pin and VDD pin allow
for the redundancy sought by safety-critical and
high-reliability systems. This device also features
independent reset outputs for the OV and UV pins;
as a result of the open-drain configuration, UV and
OV can be tied together.
This device has a low typical quiescent current
specification of 7μA and is qualified for use over the
industrial temperature range of –40°C to 125°C.