1 Features
• Up to four independent voltage supervisor
channels:
– Fixed and adjustable window, UV, or OV
voltage options. See Table 4-1 for available
options.
– Easy to use calculator tool for adjustable
versions
– High threshold accuracy: ±0.25% (typical)
– Built-in precision hysteresis: 0.75% (typical)
– Fixed time delay options
– Open drain outputs
• Designed to support Arm-based processors such
as TDA4, Sitara AM33xx, and advanced FPGAs
and SOCs
• Low quiescent current: 15 μA (maximum)
• Temperature range: –40°C to +125°C
• Functional Safety-Compliant
– Systematic capability up to SIL 3
– Hardware capability up to SIL 1

2 Applications
• Factory automation
• Building automation
• Medical
• Motor drives
• Grid infrastructure
• Wireless infrastructure
• Data center & enterprise computing

3 Description
The TPS3704x is a low-power precision window or
standard voltage supervisor that can be configured as
a quad, triple, or dual channel. Each channel has a
threshold accuracy of ±1% in an 8-pin
(1.6 mm x 2.9 mm) SOT-23 package offering a small
solution size. The TPS3704x includes a very accurate
threshold detection, with high resolution, that is ideal
for systems that operate on low-voltage supply rails
and have narrow margin supply tolerances. Built-in
low threshold hysteresis and a fixed reset delay
prevent false reset signals when monitoring multiple
voltage rails.
The TPS3704x does not require any external resistors
for setting the over and undervoltage reset thresholds,
which further optimizes overall high accuracy, cost,
solution size, and improves reliability for safety
systems.
Separate VDD and SENSEx pins allow monitoring of
rail voltages other than VDD or can be used as a
push-button input. Optional use of external resistors
are supported by the SENSEx pins. Each channel
on the TPS3704x can be customized to its own over
and undervoltage window detection with an upper and
lower threshold tolerance that can be symmetric or
asymmetric.