Diodes Incorporated — Analog and discrete power solutions
SOT23

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ZHT431

LOW Knee CURRENT 2.5 ADJUSTABLE SHUNT REGULATOR

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Description

The ZHT431 is a three terminal adjustable shunt regulator offering excellent temperature stability and output current handling capability up to 100mA. The device offers extended operating temperature range working from -55 to +125°C. The output voltage may be set to any chosen voltage between 2.5 and 20 volts by selection of two external divider resistors.

Feature(s)

  • Surface mount SOT23 package
  • 0.5%, 1% and 2% tolerance
  • Maximum temperature coefficient 67 ppm/°C
  • Temperature compensated for operation over the full temperature range
  • Programmable output voltage
  • 50μA to 100μA current sink capability
  • Low output noise
  • Wide temperature range -55 to +125°C

Application(s)

  • Series and shunt regulator
  • Voltage monitor
  • Over voltage / under voltage protection
  • Switch mode power supplies

Product Specifications

Product Parameters

Type Shunt regulator
Compliance (Only Automotive supports PPAP) Standard
AEC Qualified No
ReferenceVoltage (V) 2.5 V
Tolerance (%) 2, 1, 0.5 %
Maximum Input Voltage (V) 20 V
Sink Current (mA) 150 mA
Minimum Cathode Current for Regulation Typ (µA) 50 µA
Typical Temperature Coefficient (ppm/°C) 24 ppm/°C
Maximum Slope Resistance (Ω) 0.75 Ω
Operating Ambient Temperature Range (°C) -55 to 125 °C

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