TLVH431ACDBZT Part Information

Details for TLVH431ACDBZT by Texas Instruments

Electronic & Electrical Components > Semiconductors - ICs > Power Management

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Part Description

The TLVH431 and TLVH432 devices are low-voltage 3-terminal adjustable voltage references, with specified thermal stability over applicable industrial and commercial temperature ranges. Output voltage can be set to any value between VREF (1.24 V) and 18 V with two external resistors (see Figure 19). These devices operate from a lower voltage (1.24 V) than the widely used TL431 and TL1431 shuntregulator references. When used with an optocoupler, the TLVH431 and TLVH432 devices are ideal voltage references in isolated feedback circuits for 3-V to 3.3-V switchingmode power supplies. They have a typical output impedance of 0.25 Ω. Active output circuitry provides a very sharp turn-on characteristic, making the TLVH431 and TLVH432 devices excellent replacements for low-voltage Zener diodes in many applications, including on-board regulation and adjustable power supplies. The TLVH432 device is identical to the TLVH431 device, but is offered with different pinouts for the 3-pin SOT-23 and SOT-89 packages.

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Part Features

  • 0.25-u2126 Typical Output Impedance
  • Adjustable Output Voltage, VO = VREF to 18 V
  • Low-Voltage Operation: Down to 1.24 V
  • Reference Voltage Tolerances at 25u00b0C u2013 0.5% for B Grade u2013 1% for A Grade u2013 1.5% for Standard Grade
  • TLVH432 Provides Alternative Pinouts for SOT-23-3 and SOT-89 Packages
  • Ultra-Small SC-70 Package Offers 40%
  • Wide Operating Cathode Current Range: 100 u03bcA to 70 mA
  • u201340u00b0C to +125u00b0C Specifications

Part Specifications

Voltage Reference Type Shunt - Adjustable
Product Range TLVH431A Series
Reference Voltage 1.24V to 18V
Initial Accuracy 1%
Temperature Coefficient -
Voltage Reference Case Style SOT-23
No. of Pins 3Pins
Operating Temperature Min 0°C
Operating Temperature Max 70°C
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (27-Jun-2018)
Input Voltage Max 18V
Input Voltage Min 1.24V
Reference Volts 1.24V
Topology Shunt
RoHS Compliant

Alternative Part Descriptions

  • 1% low-voltage wide-operating current adjustable precision shunt regulator | Texas Instruments

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