S-19720 Series Automotive Voltage Tracker

S-19720 Series Automotive Voltage Tracker

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ABLIC’s automotive voltage tracker contributes to high-accuracy sensing

ABLIC’s S-19720 is a voltage tracker with a low offset voltage of ±5 mV. This helps keep the power supply voltage of the off-board ratiometric sensor equal to the reference voltage (VREF) of the analog-to-digital converter (ADC) handling ECU measurements, raising sensor reading accuracy.

The S-19720 also integrates an overcurrent protection circuit, a thermal shutdown circuit, and a reverse current protection function. As a result, it will protect an ECU even in the event of a short to power/short to ground in a wire harness. The S-19720 achieves low current consumption during power-off of 4 µA (typical) when this function operates.

Features

  • Input voltage: 4.0 V to 36.0 V
  • Offset voltage: ±5 mV (0.1 mA ≤ IOUT ≤ 50 mA)
  • Dropout voltage: 160 mV typ. (VADJ/EN = 4.0 V, IOUT = 10 mA)
  • Current consumption:
    • During operation: 30 μA typ.
    • During power-off: 4.0 μA typ.
  • Output current: Possible to output 50 mA (VIN = VADJ/EN + 2.0 V)*1
  • Input capacitor: A ceramic capacitor can be used (1.0 μF or more)
  • Output capacitor: A ceramic capacitor can be used (1.0 μF to 1,000 μF)
  • Built-in overcurrent protection circuit limits overcurrent of output transistor
  • Built-in thermal shutdown circuit with detection temperature of +175°C typ.
  • Reverse current protection function: IREV = -5 μA min. (VIN = 0 V, VADJ/EN = 5.0 V, VOUT = 16.0 V)
  • Operation temperature range: TA = -40°C to +125°C
  • Lead-free (Sn 100%), halogen-free
  • Withstand 45 V load dump
  • AEC-Q100 qualified

more information: https://hub.ablic.com/en/products/s-19720

About mixos

Mike is the founder and editor of Electronics-Lab.com, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

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