S-19720 Series Automotive Voltage Tracker

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 ≤ I_OUT ≤ 50 mA)
• Dropout voltage: 160 mV typ. (V_ADJ/EN = 4.0 V, I_OUT = 10 mA)
• Current consumption:
  • During operation: 30 μA typ.
  • During power-off: 4.0 μA typ.
• Output current: Possible to output 50 mA (V_IN = V_ADJ/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: I_REV = -5 μA min. (V_IN = 0 V, V_ADJ/EN = 5.0 V, V_OUT = 16.0 V)
• Operation temperature range: T_A = -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

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