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TPS3842-Q1

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Automotive, 42V, small size nano-power undervoltage supervisor with programmable delay and de-glitch

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Data sheet

TPS3842-Q1

ACTIVE
Data sheet Order now

Product details

Number of supplies monitored 1 Threshold voltage 1 (typ) (V) 6.5, Adjustable Features Low Quiescent Current, Reset time delay, Separate VDD & sense, Undervoltage monitor only Reset threshold accuracy (%) 0.5 Iq (typ) (mA) 0.00085 Output driver type/reset output Active-low, Open-drain Supply voltage (min) (V) 1.9 Supply voltage (max) (V) 42 Rating Automotive Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 125
Number of supplies monitored 1 Threshold voltage 1 (typ) (V) 6.5, Adjustable Features Low Quiescent Current, Reset time delay, Separate VDD & sense, Undervoltage monitor only Reset threshold accuracy (%) 0.5 Iq (typ) (mA) 0.00085 Output driver type/reset output Active-low, Open-drain Supply voltage (min) (V) 1.9 Supply voltage (max) (V) 42 Rating Automotive Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 125
SOT-5X3 (DRL) 6 2.56 mm² 1.6 x 1.6
  • 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
  • Wide supply voltage range: 1.9V to 42V
  • VDD, SENSE, and RESET are rated to 42V
  • Very low quiescent current: 850nA (typical)
  • High threshold accuracy: 0.5% (typical)
  • Fixed internal threshold voltages: 2.7V to 9.5V
  • Adjustable voltage variant: 0.7V
  • Capacitor programmable adjustable delay time with CTR pin
  • Capacitor programmable de-glitch time with CTS pin
  • Open-drain, active-low output
  • Temperature range: –40°C to 125°C
  • Small size: SOT5X3 (DRL)
  • 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
  • Wide supply voltage range: 1.9V to 42V
  • VDD, SENSE, and RESET are rated to 42V
  • Very low quiescent current: 850nA (typical)
  • High threshold accuracy: 0.5% (typical)
  • Fixed internal threshold voltages: 2.7V to 9.5V
  • Adjustable voltage variant: 0.7V
  • Capacitor programmable adjustable delay time with CTR pin
  • Capacitor programmable de-glitch time with CTS pin
  • Open-drain, active-low output
  • Temperature range: –40°C to 125°C
  • Small size: SOT5X3 (DRL)

The TPS3842-Q1 is an automotive 42V input voltage supervisor with 850nA IDD and 1.5% accuracy, and a fast detection time. The TPS3842-Q1 can be connected directly to 12V battery for continuous monitoring of undervoltage (UV) conditions. The TPS3842-Q1 comes in a small DRL package for size constrained applications. Built-in hysteresis on the SENSE pin prevents false reset signals when monitoring a supply voltage rail. 1%, 5%, and 10% hysteresis voltage options are available to offer design flexibility to support voltage transients.

SENSE is decoupled from VDD and can monitor higher and lower voltages than VDD. Fixed threshold variants provide accurate low-Iq voltage monitoring. Adjustable threshold variants offer flexible undervoltage threshold setting with external resistors. TPS3842-Q1 offers capacitor programmable de-glitch on the SENSE with the CTS pin and capacitor programmable reset delay timing with the CTR pin.

The TPS3842-Q1 is an automotive 42V input voltage supervisor with 850nA IDD and 1.5% accuracy, and a fast detection time. The TPS3842-Q1 can be connected directly to 12V battery for continuous monitoring of undervoltage (UV) conditions. The TPS3842-Q1 comes in a small DRL package for size constrained applications. Built-in hysteresis on the SENSE pin prevents false reset signals when monitoring a supply voltage rail. 1%, 5%, and 10% hysteresis voltage options are available to offer design flexibility to support voltage transients.

SENSE is decoupled from VDD and can monitor higher and lower voltages than VDD. Fixed threshold variants provide accurate low-Iq voltage monitoring. Adjustable threshold variants offer flexible undervoltage threshold setting with external resistors. TPS3842-Q1 offers capacitor programmable de-glitch on the SENSE with the CTS pin and capacitor programmable reset delay timing with the CTR pin.
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* Data sheet TPS3842-Q1 Automotive 42V Small Size, 850nA Undervoltage Supervisor With Programmable Delay and De-Glitch datasheet (Rev. A) PDF | HTML 31 Aug 2024
EVM User's guide TPS3842 Evaluation Module User's Guide PDF | HTML 17 Apr 2024

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TPS3842EVM — TPS3842 evaluation module

The TPS3842EVM is an evaluation module (EVM) for the TPS3842-Q1 and TPS3842 family of voltage supervisors. The purpose of the this EVM is to provide a sample design and test point for all input and output pins of the TPS3842 and TPS3842-Q1 device to capture measurements and gain familiarity with (...)
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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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