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Texas Instruments TPS38-Q1 Supply Voltage Supervisor

Texas Instruments TPS38-Q1 Supply Voltage Supervisor is a 65V input-voltage detector with 1μA IDD, 1% accuracy, and a fast 10μs detection time. This device operates over a wide supply voltage range of 2.7V to 65V. The TPS38-Q1 supervisors are automotive devices that feature flexible and wide-voltage threshold options, built-in hysteresis, and open-drain or push-pull output technology. This supply voltage supervisor is available in WSON or SOT-23 packages. The WSON package comes in wettable flanks, facilitating Automatic Optical Inspection (AOI) and low-resolution X-ray inspection. The TPS38-Q1 device is AEC-Q100 qualified for automotive applications. This supply-voltage supervisor is ideal for telematics control units, emergency call systems, audio amplifiers, head units and clusters, sensor fusion and cameras, and body control modules.

Features

  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1 -40°C to 125°C ambient operating temperature TA
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C7B
  • Functional safety - capable documentation available for functional safety system design
  • 2.7V to 65V wide supply voltage range
  • SENSE and RESET pins are 65V graded
  • 1µA (typical) low quiescent current
  • Flexible and wide voltage threshold options:
    • 2.7V to 36V (1.5% maximum accuracy)
    • 800mV option (1% maximum accuracy)
  • Built-in hysteresis (VHYS):
    • 2% to 13% (1% steps) percentage options
    • VTH < 8V = 0.5V, 1V, 1.5V, 2V, and 2.5V fixed options
  • Programmable reset time delay 10nF = 12.8ms and 10µF = 12.8s
  • Programmable sense time delay 10nF = 1.28ms and 10µF = 1.28s
  • Manual Reset (MR) feature
  • Output topology:
    • Channel 1: Open-drain or push-pull
    • Channel 2: Open-drain

Applications

  • Telematics control units
  • Emergency call systems
  • Audio amplifiers
  • Head unit and clusters
  • Sensor fusion and cameras
  • Body control modules

Application Diagram

Application Circuit Diagram - Texas Instruments TPS38-Q1 Supply Voltage Supervisor

IDD Vs. VDD Characteristics

Performance Graph - Texas Instruments TPS38-Q1 Supply Voltage Supervisor

Block Diagram

Block Diagram - Texas Instruments TPS38-Q1 Supply Voltage Supervisor

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Publicado: 2026-04-01 | Actualizado: 2026-04-06