Product details

Number of supplies monitored 1 Threshold voltage 1 (Typ) (V) 1.67, 1.73, 3.07, 3.17 Features Manual reset capable, Watchdog disable, Watchdog timer, Window watchdog Reset threshold accuracy (%) 0.8 Output driver type/reset output Active-low, Open-drain Time delay (ms) 200 TI functional safety category Functional Safety-Capable Rating Automotive Watchdog timer WDI (sec) Programmable Operating temperature range (C) -40 to 125
Number of supplies monitored 1 Threshold voltage 1 (Typ) (V) 1.67, 1.73, 3.07, 3.17 Features Manual reset capable, Watchdog disable, Watchdog timer, Window watchdog Reset threshold accuracy (%) 0.8 Output driver type/reset output Active-low, Open-drain Time delay (ms) 200 TI functional safety category Functional Safety-Capable Rating Automotive Watchdog timer WDI (sec) Programmable Operating temperature range (C) -40 to 125
VSON (DRB) 8 9 mm² 3 x 3
  • 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 2
    • Device CDM ESD Classification Level C4B
  • VDD Input Voltage Range: 1.6 V to 6.5 V
  • 0.8% Voltage Threshold Accuracy
  • Low Supply Current: IDD = 10 µA (typ)
  • User-Programmable Watchdog Timeout
  • Factory-Programmed Precision Watchdog and Reset Timers:
    • ±15% Accurate WDT and RST Delays
  • Open-Drain Outputs
  • Manual Reset Input (MR)
  • Precision Voltage Monitoring:
    • Supports Common Rails from 1.8 V to 5.0 V
    • 4% and 7% Thresholds Available
    • 0.5% Hysteresis
  • Watchdog Disable Feature
  • Available in a Small 3-mm × 3-mm, 8-Pin VSON Package
  • 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 2
    • Device CDM ESD Classification Level C4B
  • VDD Input Voltage Range: 1.6 V to 6.5 V
  • 0.8% Voltage Threshold Accuracy
  • Low Supply Current: IDD = 10 µA (typ)
  • User-Programmable Watchdog Timeout
  • Factory-Programmed Precision Watchdog and Reset Timers:
    • ±15% Accurate WDT and RST Delays
  • Open-Drain Outputs
  • Manual Reset Input (MR)
  • Precision Voltage Monitoring:
    • Supports Common Rails from 1.8 V to 5.0 V
    • 4% and 7% Thresholds Available
    • 0.5% Hysteresis
  • Watchdog Disable Feature
  • Available in a Small 3-mm × 3-mm, 8-Pin VSON Package

The TPS3852-Q1 is a precision voltage supervisor with an integrated window watchdog timer. The TPS3852-Q1 includes a precision undervoltage supervisor with an undervoltage threshold (VITN) that achieves 0.8% accuracy over the specified temperature range of –40°C to +125°C. In addition, the TPS3852-Q1 includes accurate hysteresis making the device ideal for use with tight tolerance systems. The supervisor RESET delay features a 15% accuracy, high-precision delay timer.

The TPS3852-Q1 includes a programmable window watchdog timer for a wide variety of applications. The dedicated watchdog output (WDO) enables increased resolution to help determine the nature of fault conditions. The watchdog timeouts can be programmed either by an external capacitor or by factory-programmed default delay settings. The watchdog can be disabled to avoid undesired watchdog timeouts during the development process.

The TPS3852-Q1 is available in a small 3.00-mm × 3.00-mm, 8-pin VSON package. The TPS3852-Q1 features wettable flanks that allow for easy optical inspection.
















The TPS3852-Q1 is a precision voltage supervisor with an integrated window watchdog timer. The TPS3852-Q1 includes a precision undervoltage supervisor with an undervoltage threshold (VITN) that achieves 0.8% accuracy over the specified temperature range of –40°C to +125°C. In addition, the TPS3852-Q1 includes accurate hysteresis making the device ideal for use with tight tolerance systems. The supervisor RESET delay features a 15% accuracy, high-precision delay timer.

The TPS3852-Q1 includes a programmable window watchdog timer for a wide variety of applications. The dedicated watchdog output (WDO) enables increased resolution to help determine the nature of fault conditions. The watchdog timeouts can be programmed either by an external capacitor or by factory-programmed default delay settings. The watchdog can be disabled to avoid undesired watchdog timeouts during the development process.

The TPS3852-Q1 is available in a small 3.00-mm × 3.00-mm, 8-pin VSON package. The TPS3852-Q1 features wettable flanks that allow for easy optical inspection.
















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Technical documentation

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Type Title Date
* Data sheet TPS3852-Q1 High-Accuracy Voltage Supervisor with Integrated Watchdog Timer datasheet 22 Feb 2017
Functional safety information TPS3852-Q1 Functional Safety FIT Rate and Failure Mode Distribution 18 Dec 2019
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics 28 Jun 2019

Design & development

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TPS3852 Unencrypted PSpice Transient Model

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TPS3852 PSpice Transient Model

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