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Product details

Parameters

Number of supplies monitored 1 Threshold voltage 1 (Typ) (V) 0.8, 0.9, 1.1, 1.2, 1.25, 1.8, 2.5, 2.8, 2.9, 3.3, 5 Features Undervoltage and overvoltage monitor, Undervoltage only monitoring, Latching, Manual reset Output driver type/reset output Active-low, Open-drain Time delay (ms) Programmable, 0.05, 1, 5, 10, 20, 100, 200 VCC (Max) (V) 5.5 TI functional safety category Functional Safety-Capable Rating Automotive VCC (Min) (V) 1.7 Watchdog timer WDI (sec) None Operating temperature range (C) -40 to 125 open-in-new Find other Supervisor & reset ICs

Package | Pins | Size

WSON (DSE) 6 2 mm² 1.5 x 1.5 open-in-new Find other Supervisor & reset ICs

Features

  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C7B
  • 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)
  • 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

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Description

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.

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.

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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Technical documentation

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
$25.00
Description

The TPS3703Q1-A4120 evaluation module (EVM) tests the features of the TPS3703-Q1 device to the fullest extent. TPS3703-Q1 is a high-accuracy window supervisor or reset IC in a 6-pin very-very-thin small-outline no-lead (WSON) package. TPS3703-Q1 includes a CT pin that is used to (...)

Features
  • Fixed window threshold
  • Fixed and adjustable time-delay options
  • Internal glitch immunity
  • Reset latch feature
  • TPS3703-Q1 package: 6-pin WSON (1.5 mm × 1.5 mm)
  • High threshold accuracy

Design tools & simulation

SIMULATION MODELS Download
SBVM918A.ZIP (75 KB) - PSpice Model
SIMULATION MODELS Download
SBVM919A.ZIP (74 KB) - PSpice Model
SIMULATION MODELS Download
SBVM920A.ZIP (73 KB) - PSpice Model
SIMULATION MODELS Download
SBVM921A.ZIP (72 KB) - PSpice Model
SIMULATION MODELS Download
SBVM922A.ZIP (74 KB) - PSpice Model
SIMULATION MODELS Download
SNVMBT3.ZIP (3571 KB) - PSpice Model

Reference designs

REFERENCE DESIGNS Download
Safety power supply for motor drives reference design
TIDA-010052 — This reference design implements a safe-power supply for powering up microcontrollers in an architecture featuring two MCUs. The design has several protection features including overvoltage protection and short circuit protection to prevent the MCUs from getting damaged. The DC/DCs, LMR36515 and (...)
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Automotive 2.6-MP camera module reference design with POL PMIC, FPD-Link III, supervisor and POC
TIDA-020000 — This reference design addresses the need for small cameras in automotive systems by combining a 2.6-megapixel imager with a 4-Gbps serliazier while providing power supplies and voltage supervision for both devices in an ultra-small form factor. This design includes a high-speed serial interface to (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Protected DC-bus input power and control power supply reference design for low-voltage servo drives
TIDA-010070 — This reference design uses an ORing controller, the LM5050-1 to provide protection against reverse polarity and reverse current. In conjunction, the LM5069 hot swap controller is used for overcurrent, over voltage, under voltage protection, and inrush current limitation. The design also features (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
ADAS power reference design with improved voltage supervision
TIDA-050008 This TI design provides an automotive power solution with additional precision voltage supervision and window watchdog for safety MCUs in advanced driver assistance systems (ADAS). These ADAS systems can control driving functions, such as automated emergency brake, lane keep assist, and adaptive (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
WSON (DSE) 6 View options

Ordering & quality

Support & training

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