TPS3703-Q1
SBVS344D – NOVEMBER 2018 – REVISED MARCH 2021
TPS3703-Q1
Overvoltage and Undervoltage Reset IC With Time Delay and Manual Reset
1 Features
3 Description
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AEC-Q100 qualified for automotive applications:
– Temperature grade 1: –40°C to +125°C, TA
– Device HBM ESD classification level 2
– Device CDM ESD classification level C7B
Functional Safety-Capable
– Documentation available to aid functional safety
system design
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:
The TPS3703-Q1 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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The TPS3703-Q1 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.
– ± 0.25% (typical)
– ± 0.7% (–40°C to +125°C)
Fixed window threshold levels
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– 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
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This device has a low typical quiescent current
specification of 4.5 µA (typical). The TPS3703-Q1 is
suitable for automotive applications and is qualified for
AEC-Q100 Grade 1.
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Device Information(1)
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PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS3703-Q1
WSON (6)
1.50 mm × 1.50 mm
2 Applications
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
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Advanced driver assistance system (ADAS)
ADAS domain controller
Automotive infotainment and cluster
Digital cockpit
35
30
25
20
15
10
5
HEV/EV
OV Threshold
Monitor Voltage
VCORE
UV Threshold
TPS3703Q1
1
SENSE
6
5
MR
Processor
RESET
Up to
5.5V
VDD
CT
GND
2
3
10k ꢀ
RESET
4
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.