TPS3704
SNVSBZ2B – MARCH 2021 – REVISED DECEMBER 2021
TPS3704x Quad, Triple, Dual, Single Window or Standard Voltage Supervisor
1 Features
3 Description
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Designed for high performance and safety:
– Input current (4 channels): IDD = 15 μA
(maximum)
– High threshold accuracy: ±1% (maximum)
– Built-in precision hysteresis:
VHYS (VIT > 800 mV) = 0.75% (typical)
Designed for a wide range of applications:
– Quad, triple, dual, or single voltage supervisor
The TPS3704x is a low-power precision window or
standard voltage supervisor that can be configured as
a quad, triple, dual, or single 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 (tD
options from 20 μs to 1200 ms) prevent false reset
signals when monitoring multiple voltage rails.
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TPS37044, 3, 2, 1: 4, 3, 2, 1 - channels
– Input voltage range, VDD = 1.7 V to 6 V
– (UV / OV) threshold accuracy: ±0.1% (typical)
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Each channel can be configured
independently: window, UV, or OV
Window tolerance: ±3% to ±11%
(can be programmed asymmetrical)
High threshold resolution:
The TPS3704x does not require any external
resistors for setting the over and under voltage
reset thresholds, which further optimizes overall high
accuracy, cost, solution size, and improves reliability
for safety systems.
VIT ≤ 0.8 V: 20 mV steps
VIT > 0.8 V: lower of 0.5% or 20 mV steps
VIT threshold voltages for each individual
channel can be set independently
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
under voltage window detection with an upper and
lower threshold tolerance that can be symmetric or
asymmetric.
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– Push-button monitor on all channels
– Reset time delay (tD): fixed time delay options
Options: 23-fixed time options ranging from
20 µs (minimum) to 1200 ms (maximum)
– Temperature range: –40°C to +125°C
Multiple output topologies:
– TPS3704xxxO: open-drain, active-low (RESET)
– TPS3704xxxL: push-pull, active-low (RESET)
– TPS3704xxxH: push-pull, active-high (RESET)
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Device Information
PART NUMBER
PACKAGE (1)
BODY SIZE (NOM)
TPS3704x
DDF (SOT-23 8-pin)
1.6 mm × 2.9 mm
2 Applications
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
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Factory automation
Building automation
Medical
VDD
VDD
RESET1
RESET2
RESET3
RPULL_UP
RESET
Microcontroller
Motor drives
TPS37043
Grid infrastructure
Wireless infrastructure
Data center & enterprise computing
SENSE1 SENSE2 SENSE3
3.3 V
1.8 V
24 V VIN
Wide VIN
Buck
VI/O
DVDD
DC/DC
1.2 V
VCORE
Typical Application Circuit
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.