TPS3703
TPS3703
www.ti.com
SBVS249B – MAY 2020 – REVISED NOVEMBER 2020
SBVS249B – MAY 2020 – REVISED NOVEMBER 2020
TPS3703 High Accuracy Overvoltage and Undervoltage Reset IC With Time Delay and
Manual Reset
1 Features
3 Description
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Input voltage range: 1.7 V to 5.5 V
Undervoltage lockout (UVLO): 1.7 V
Low quiescent current: 7 µA (Max)
High threshold accuracy:
– ± 0.25% (typical)
– ± 0.7% (–40°C to +125°C)
The TPS3703 device is an integrated overvoltage
(OV) and undervoltage (UV) monitor or reset IC in
industry’s smallest 6-pin DSE package. This highly
accurate voltage supervisor is ideal for systems that
operate on low-voltage supply rails and have narrow
margin supply tolerances. Low threshold hysteresis
prevent false reset signals when the monitored
voltage supply is in its normal range of operation.
Internal glitch immunity and noise filters further
eliminate false resets resulting from erroneous
signals.
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Fixed window threshold levels
– 50-mV steps from 500 mV to 1.3 V
– 1.5 V, 1.8 V, 2.5 V, 2.8 V, 2.9 V 3.3 V, 5 V
– Available in UV threshold only
– Window tolerance available from ±3% to ±7%
User adjustable voltage threshold levels
Internal glitch immunity and hysteresis
Fixed time delay options: 50 µs, 1 ms, 5 ms, 10
ms, 20 ms, 100 ms, 200 ms
Programmable time delay option with a single
external capacitor
Open-drain active low UV and OV monitor
RESET voltage latching output mode
The TPS3703 does not require any external resistors
for setting overvoltage and undervoltage reset
thresholds, which further optimizes overall accuracy,
cost, solution size, and improves reliability for safety
systems. The Capacitor Time (CT) pin is used to
select between the two available reset time delays
designed into each device and also to adjust the reset
time delay by connecting a capacitor. A separate
SENSE input pin and VDD pin allow for the
redundancy sought by high-reliability systems.
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2 Applications
This device has a low typical quiescent current
specification of 4.5 µA (typical). The TPS3703 is
suitable for industrial applications and applications
that require accurate undervoltage and overvoltage
monitoring.
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Motor drives
Factory automation and control
Home theater and entertainment
Grid infrastructure
Data center and enterprise computing
Device Information
PART NUMBER
TPS3703
PACKAGE(1)
BODY SIZE (NOM)
WSON (6)
1.50 mm × 1.50 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
35
30
25
20
15
10
5
OV Threshold
Monitor Voltage
VCORE
UV Threshold
TPS3703
1
SENSE
6
5
MR
Processor
VDD
GND
2
3
10k ꢀ
CT
RESET
4
RESET
0
-0.4
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0.4
Optional
VIT+(OV) Accuracy (%)
D004
Integrated Overvoltage and Undervoltage
Detection
Typical Overvoltage Accuracy Distribution
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.
Product Folder Links: TPS3703
Copyright © 2020 Texas Instruments Incorporated
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