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TPS3704-Q1

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Automotive multichannel window supervisor with high accuracy and compact form factor

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Data sheet

TPS3704-Q1

ACTIVE
Data sheet Order now

Product details

Number of supplies monitored 2, 3, 4 Threshold voltage 1 (typ) (V) 0.8, 1, 1.15, 1.2, 1.8, 2.8, 3.3, adjustable Features Push-button, Reset time delay, Separate VDD & sense, Undervoltage and overvoltage monitor Reset threshold accuracy (%) 1 Iq (typ) (mA) 0.0055 Output driver type/reset output Active-low, Open-drain Time delay (ms) 0.02, 1, 5, 10, 20, 35, 50, 100, 150, 200, 400, 800, 1200 Supply voltage (min) (V) 1.7 Supply voltage (max) (V) 5.5 TI functional safety category Functional Safety-Compliant Rating Automotive Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 125
Number of supplies monitored 2, 3, 4 Threshold voltage 1 (typ) (V) 0.8, 1, 1.15, 1.2, 1.8, 2.8, 3.3, adjustable Features Push-button, Reset time delay, Separate VDD & sense, Undervoltage and overvoltage monitor Reset threshold accuracy (%) 1 Iq (typ) (mA) 0.0055 Output driver type/reset output Active-low, Open-drain Time delay (ms) 0.02, 1, 5, 10, 20, 35, 50, 100, 150, 200, 400, 800, 1200 Supply voltage (min) (V) 1.7 Supply voltage (max) (V) 5.5 TI functional safety category Functional Safety-Compliant Rating Automotive Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 125
SOT-23-THN (DDF) 8 8.12 mm² 2.9 x 2.8
  • ASIL-A Functional Safety-Compliant
    • Development targeted for functional safety applications
    • Documentation to aid ISO 26262 system design
    • Systematic capability up to ASIL D
    • Hardware capability up to ASIL A
  • AEC-Q100 qualified for automotive applications
    • Device temperature grade 1: –40°C to +125°C
  • 1-4 channels for monitoring state-of-the art SOCs
    • High ±0.25% (typical) threshold accuracy
    • Configure each channel for Window, UV, or OV voltage monitoring
    • Programmable window tolerance [3% to 11% (typical*)] for each channel
    • Easy to use calculator tool for adjustable versions
    • Designed to monitor Core and GPIO rails of TI processors (AM26x, AM62x, TDA4)
  • Miniature solution with low power consumption
    • 5.5µA typical quiescent current
    • Compact 6 pin SOT-23 package (2.9mm x 1.6mm)
  • Additional Features
    • Built-in hysteresis to prevent false trip on RESET: 0.75% (typical)
    • 23 fixed time delay options (selectable from 20µs to 1200ms)
    • Open drain or push-pull output topology available
  • ASIL-A Functional Safety-Compliant
    • Development targeted for functional safety applications
    • Documentation to aid ISO 26262 system design
    • Systematic capability up to ASIL D
    • Hardware capability up to ASIL A
  • AEC-Q100 qualified for automotive applications
    • Device temperature grade 1: –40°C to +125°C
  • 1-4 channels for monitoring state-of-the art SOCs
    • High ±0.25% (typical) threshold accuracy
    • Configure each channel for Window, UV, or OV voltage monitoring
    • Programmable window tolerance [3% to 11% (typical*)] for each channel
    • Easy to use calculator tool for adjustable versions
    • Designed to monitor Core and GPIO rails of TI processors (AM26x, AM62x, TDA4)
  • Miniature solution with low power consumption
    • 5.5µA typical quiescent current
    • Compact 6 pin SOT-23 package (2.9mm x 1.6mm)
  • Additional Features
    • Built-in hysteresis to prevent false trip on RESET: 0.75% (typical)
    • 23 fixed time delay options (selectable from 20µs to 1200ms)
    • Open drain or push-pull output topology available

The TPS3704-Q1 is an ASIL-A compliant low-power precision window (UV +OV) voltage supervisor that can be configured and is available in an 8-pin (1.6mm x 2.9mm) SOT-23 package. This highly accurate (±0.25%) supervisor is available as a quad, triple, dual, and or single channel options. Each channel can be customized to its own overvoltage and undervoltage window detection with an upper and lower threshold tolerance that can be symmetric or asymmetric.

TPS3704-Q1 allows for highly accurate threshold detection with high resolution that is designed for systems operating on low-voltage supply rails with narrow margin supply tolerances. In addition, the built-in low threshold hysteresis and fixed reset delay features prevent false reset signals when monitoring multiple voltage rails.

The TPS3704-Q1 does not require any external resistors for setting the overvoltage and undervoltage reset thresholds which improves reliability for safety systems and optimizes overall accuracy, cost, solution size. Optional use of external resistors for design flexibility is supported by the SENSEx pins. Separate VDD and SENSEx pins allow monitoring of voltage rails other than VDD or alternatively enables use of a push-button input.

The TPS3704-Q1 is an ASIL-A compliant low-power precision window (UV +OV) voltage supervisor that can be configured and is available in an 8-pin (1.6mm x 2.9mm) SOT-23 package. This highly accurate (±0.25%) supervisor is available as a quad, triple, dual, and or single channel options. Each channel can be customized to its own overvoltage and undervoltage window detection with an upper and lower threshold tolerance that can be symmetric or asymmetric.

TPS3704-Q1 allows for highly accurate threshold detection with high resolution that is designed for systems operating on low-voltage supply rails with narrow margin supply tolerances. In addition, the built-in low threshold hysteresis and fixed reset delay features prevent false reset signals when monitoring multiple voltage rails.

The TPS3704-Q1 does not require any external resistors for setting the overvoltage and undervoltage reset thresholds which improves reliability for safety systems and optimizes overall accuracy, cost, solution size. Optional use of external resistors for design flexibility is supported by the SENSEx pins. Separate VDD and SENSEx pins allow monitoring of voltage rails other than VDD or alternatively enables use of a push-button input.

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Technical documentation

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* Data sheet TPS3704-Q1 Automotive Quad, Triple, Dual, Single Window or Standard Voltage Supervisor datasheet (Rev. C) PDF | HTML 21 May 2024
Functional safety information TPS3704 Functional Safety Analysis Report Summary (FMEDA) (Rev. A) PDF | HTML 26 May 2022
Functional safety information TPS3704 Functional Safety Report Summary (Rev. A) PDF | HTML 26 May 2022
Functional safety information TPS3704x-Q1 Functional Safety Manual (Rev. A) PDF | HTML 26 May 2022

Design & development

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

Evaluation board

TPS3704Q1EVM — TPS3704 evaluation module for multichannel window supervisor with compact form factor

The TPS3704 evaluation module (EVM) is a platform for evaluating the TPS3704-Q1, which is a multichannel window supervisor and reset IC in an 8-pin, small-outline transistor (SOT-23) DDF package. TPS3704Q1EVM monitors single-, dual-, triple- and quad-voltage rails. The input voltage (...)

User guide: PDF | HTML
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Simulation model

TPS3704 and TPS3704-Q1 PSpice Transient Model

SNVMC94.ZIP (5083 KB) - PSpice Model
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Calculation tool

SNVR502 — TPS3704 Voltage Threshold Accuracy and Tolerance Calculator

Supported products & hardware

Supported products & hardware

Products
Supervisor & reset ICs
TPS3704 — Multichannel window supervisor with high accuracy and compact form factor TPS3704-Q1 — Automotive multichannel window supervisor with high accuracy and compact form factor
Download
Calculation tool

TPS3704-ADJ-CALC — TPS3704 adjustable-voltage threshold-resistor calculator

Supported products & hardware

Supported products & hardware

Products
Supervisor & reset ICs
TPS3704 — Multichannel window supervisor with high accuracy and compact form factor TPS3704-Q1 — Automotive multichannel window supervisor with high accuracy and compact form factor
Download
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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Reference designs

PMP41085 — 100W Automotive Infotainment Display Module Reference Design With Functional Safety Capabilities

This reference design showcases the 100W automotive infotainment display module power reference design with cold crank, load dump and FuSa Capabilities.

The LM74900-Q1 is the first stage of the design playing a role of protection for negative input voltage, undervoltage, locked output, and (...)

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SOT-23-THN (DDF) 8 Ultra Librarian
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