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TPS3700-Q1

ACTIVE

Automotive high-voltage (18-V) window voltage detector for overvoltage and undervoltage monitoring

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Data sheet

TPS3700-Q1

ACTIVE
Data sheet Order now

Product details

Number of supplies monitored 1, 2 Threshold voltage 1 (typ) (V) 0.4 Features Separate VDD & sense, Undervoltage and overvoltage monitor, Wide input voltage Reset threshold accuracy (%) 1 Iq (typ) (mA) 0.0055 Output driver type/reset output Active-low, Open-drain Time delay (ms) 0 Supply voltage (min) (V) 1.8 Supply voltage (max) (V) 18 TI functional safety category Functional Safety-Capable Rating Automotive Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 125
Number of supplies monitored 1, 2 Threshold voltage 1 (typ) (V) 0.4 Features Separate VDD & sense, Undervoltage and overvoltage monitor, Wide input voltage Reset threshold accuracy (%) 1 Iq (typ) (mA) 0.0055 Output driver type/reset output Active-low, Open-drain Time delay (ms) 0 Supply voltage (min) (V) 1.8 Supply voltage (max) (V) 18 TI functional safety category Functional Safety-Capable Rating Automotive Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 125
SOT-23-THN (DDC) 6 8.12 mm² 2.9 x 2.8 WSON (DSE) 6 2.25 mm² 1.5 x 1.5
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C6
  • Functional Safety-Capable
  • Wide Supply Voltage Range: 1.8 V to 18 V
  • Adjustable Threshold: Down to 400 mV
  • Open-Drain Outputs for Overvoltage and Undervoltage Detection
  • Low Quiescent Current: 5.5 µA (typ)
  • High Threshold Accuracy:
    • 1% Over Temperature
    • 0.25% (typ)
  • Internal Hysteresis: 5.5 mV (typ)
  • Available in ThinSOT23-6 and WSON Packages
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C6
  • Functional Safety-Capable
  • Wide Supply Voltage Range: 1.8 V to 18 V
  • Adjustable Threshold: Down to 400 mV
  • Open-Drain Outputs for Overvoltage and Undervoltage Detection
  • Low Quiescent Current: 5.5 µA (typ)
  • High Threshold Accuracy:
    • 1% Over Temperature
    • 0.25% (typ)
  • Internal Hysteresis: 5.5 mV (typ)
  • Available in ThinSOT23-6 and WSON Packages

The TPS3700-Q1 wide-supply window voltage detector operates over a 1.8 V to 18 V range. The device has two high-accuracy comparators with an internal 400-mV reference and two open-drain outputs rated to 18 V for overvoltage and undervoltage detection. The TPS3700-Q1 device can be used as a window voltage detector or as two independent voltage monitors; the monitored voltage can be set with the use of external resistors. For even wider input voltage capability up to 65 V, see the TPS37A-Q1 or the TPS38A-Q1 devices.

The OUTA terminal is driven low when the voltage at the INA+ terminal drops below (VIT+ – Vhys), and goes high when the voltage returns above the respective threshold (VIT+). The OUTB terminal is driven low when the voltage at the INB– terminal rises above VIT+, and goes high when the voltage drops below the respective threshold (VIT+ – Vhys). Both comparators in the TPS3700-Q1 device include built-in hysteresis for filtering to reject brief glitches, thereby ensuring stable output operation without false triggering.

The TPS3700-Q1 device is available in a Thin SOT-6 and a 1.5-mm x 1.5-mm WSON-6 package and is specified over the junction temperature range of –40°C to 125°C.

The TPS3700-Q1 wide-supply window voltage detector operates over a 1.8 V to 18 V range. The device has two high-accuracy comparators with an internal 400-mV reference and two open-drain outputs rated to 18 V for overvoltage and undervoltage detection. The TPS3700-Q1 device can be used as a window voltage detector or as two independent voltage monitors; the monitored voltage can be set with the use of external resistors. For even wider input voltage capability up to 65 V, see the TPS37A-Q1 or the TPS38A-Q1 devices.

The OUTA terminal is driven low when the voltage at the INA+ terminal drops below (VIT+ – Vhys), and goes high when the voltage returns above the respective threshold (VIT+). The OUTB terminal is driven low when the voltage at the INB– terminal rises above VIT+, and goes high when the voltage drops below the respective threshold (VIT+ – Vhys). Both comparators in the TPS3700-Q1 device include built-in hysteresis for filtering to reject brief glitches, thereby ensuring stable output operation without false triggering.

The TPS3700-Q1 device is available in a Thin SOT-6 and a 1.5-mm x 1.5-mm WSON-6 package and is specified over the junction temperature range of –40°C to 125°C.
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Technical documentation

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Type Title Date
* Data sheet TPS3700-Q1 Automotive High Voltage (18V) Window Voltage Detector With Internal Reference for Over and Undervoltage Monitoring datasheet (Rev. C) PDF | HTML 18 Mar 2021
Functional safety information TPS3700-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA (Rev. A) PDF | HTML 23 Feb 2021
Application note Split Supply Positive and Negative Dual Voltage Monitoring Solution 11 Oct 2019
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics 28 Jun 2019
Application note Adding Reset Delay to Voltage Detectors 09 Oct 2018
E-book The Signal e-book: A compendium of blog posts on op amp design topics 28 Mar 2017
Selection guide Automotive Supervisor and Reset IC Selection Guide 22 Feb 2016
Application note Using the TPS3700 as a Negative Rail Over- and Undervoltage Detector 16 Jul 2013

Design & development

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

Evaluation board

TPS3700EVM-114 — TPS3700 high-voltage (18-V) window voltage detector evaluation module for SOT-23 package

The Texas Instruments TPS3700EVM-114 evaluation module (EVM) helps designers evaluate the performance of the TPS3700 high-voltage (18 V), window comparator with overvoltage and undervoltage detection. The EVM has an IC for overvoltage and undervoltage monitoring and header connectors for easy (...)
User guide: PDF
Not available on TI.com
Evaluation board

TPS3700EVM-202 — TPS3700 high-voltage (18-V) window voltage detector evaluation module for WSON package

The Texas Instruments TPS3700EVM-202 evaluation module (EVM) helps you evaluate the operation and performance of the TPS3700 high-voltage window comparator. The EVM has an overvoltage and undervoltage supervisory circuit with a wide supply range, independent open-drain outputs, very-low (...)
User guide: PDF
Not available on TI.com
Evaluation board

UCC21710QDWEVM-025 — Driving and protection evaluation board for SiC and IGBT transistors and power modules

The UCC21710QDWEVM-025 is a compact, single channel isolated gate driver board providing drive, bias voltages, protection and diagnostic needed for SiC MOSFET and Si IGBT Power Modules housed in 150 x 62 x 17 mm and 106 x 62 x 30 mm packages. This TI EVM is based on 5.7-kVrms reinforced isolation (...)
User guide: PDF
Not available on TI.com
Simulation model

TPS3700 PSpice Transient Model (Rev. B)

SBVM152B.ZIP (59 KB) - PSpice Model
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Simulation model

TPS3700 TINA-TI Transient Reference Design (Rev. A)

SBVM242A.TSC (123 KB) - TINA-TI Reference Design
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Simulation model

TPS3700 TINA-TI Transient Spice Model (Rev. B)

SBVM241B.ZIP (21 KB) - TINA-TI Spice Model
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Simulation model

TPS3700 Unencrypted PSpice Transient Model (Rev. B)

SBVM552B.ZIP (3 KB) - PSpice Model
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Calculation tool

SLUC425 — TPS3700, TPS3700-Q1 and TPS3701 Resistor Divider Calculator

Supported products & hardware

Supported products & hardware

Products
Supervisor & reset ICs
TPS3700 — High-voltage (18-V) window voltage detector for overvoltage and undervoltage monitoring TPS3700-Q1 — Automotive high-voltage (18-V) window voltage detector for overvoltage and undervoltage monitoring TPS3701 — High-voltage (36-V) window voltage detector with internal reference for OV & UV monitoring
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Calculation tool

SLVRBG6 — TPS3700-Q1 Hysteresis Calculator Using External Resistors

Supported products & hardware

Supported products & hardware

Products
Supervisor & reset ICs
TPS3700-Q1 — Automotive high-voltage (18-V) window voltage detector for overvoltage and undervoltage monitoring
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

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Design guide: PDF
Schematic: PDF
Reference designs

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This reference design is an IGBT or SiC isolated gate driver power stage driving a IGBT module with advanced protection features. The design consists of a single phase power stage from a traction inverter supporting high level of safety features. The IGBT module has integrated thermal diode for (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-020015 — 4.5-V to 65-V input, compact bias supply with power stage reference design for IGBT/SiC gate drivers

This reference design is a 4.2-W, single-channel, automotive 12-V battery input flyback bias supply for IGBT/SiC isolated gate drivers. The supply accepts a wide input range of 4.5-V to 65-V DC. The output is configurable as +15 V,–8 V or +20 V, –4 V at loads up to 180 mA for driving (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-020014 — HEV/EV traction inverter power stage with 3 types of IGBT/SiC bias-supply solutions reference design

This reference design presents a traction inverter single-phase power stage with three 12-V car battery inputs, 4.2-W bias supply solutions for hybrid electric vehicle and electric vehicle (HEV/EV) systems. All bias-supply solutions accept a wide input range of 4.5 V to 42 V DC from a 12-V car (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-020002 — Automotive 2-MP camera module reference design with MIPI CSI-2 video interface, FPD-Link III and POC

This camera module reference design addresses the need for small cameras in automotive systems by combining a 2-megapixel imager with a 4-Gbps serializer. Additionally, it provides power supplies and voltage supervision for both devices in an ultra-small form factor. This design includes a (...)
Design guide: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
SOT-23-THN (DDC) 6 Ultra Librarian
WSON (DSE) 6 Ultra Librarian
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