Top

Product details

Parameters

VO (V) 1.24 Reference voltage Adjustable Initial accuracy (Max) (%) 1 Rating Automotive VO adj (Min) (V) 1.24 VO adj (Max) (V) 18 Iz for regulation (Min) (uA) 60 Temp coeff (Max) (ppm/ degree C) 161 Operating temperature range (C) -40 to 125 Iout/Iz (Max) (mA) 80 open-in-new Find other Shunt voltage references

Package | Pins | Size

SOT-23 (DBV) 5 5 mm² 2.9 x 1.6 open-in-new Find other Shunt voltage references

Features

  • Qualified for Automotive Applications
  • Low-Voltage Operation: Down to 1.24 V
  • Reference Voltage Tolerances at 25°C
    • 0.5% for B Grade
    • 1% for A Grade
  • Adjustable Output Voltage, VO = VREF to 18 V
  • Wide Operating Cathode Current Range: 100 µA to 70 mA
  • 0.25- Typical Output Impedance
  • –40°C to 125°C Specifications

open-in-new Find other Shunt voltage references

Description

The TLVH431 devices are low-voltage 3-terminal adjustable voltage references, with thermal stability specified over the automotive temperature range. Output voltage can be set to any value between VREF (1.24 V) and 18 V with two external resistors (see Figure 2). These devices operate from a lower voltage (1.24 V) than the widely used TL431 and TL1431 shunt-regulator references.

When used with an optocoupler, the TLVH431 devices are ideal voltage reference in isolated feedback circuits for 3-V to 3.3-V switching-mode power supplies. They have a typical output impedance of 0.25 . Active output circuitry provides a very sharp turn-on characteristic, making the TLVH431 an excellent replacement for low-voltage Zener diodes in many applications, including on-board regulation and adjustable power supplies.

open-in-new Find other Shunt voltage references
Download

Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 3
Type Title Date
* Datasheet TLVH431A-Q1, TLVH431B-Q1 Low-Voltage Adjustable Precision Shunt Regulator . datasheet (Rev. B) Mar. 28, 2011
White papers Voltage Supervisor and Reset ICs: Tips, Tricks and Basics Jun. 28, 2019
Application notes Automotive LED Lighting with Adjustable Shunt References Jul. 17, 2018

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Design tools & simulation

SIMULATION MODELS Download
SLVM672.ZIP (19 KB) - PSpice Model
SIMULATION TOOLS Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

Reference designs

REFERENCE DESIGNS Download
17W System-Level Power Reference Design for Automotive Infotainment Processor Power
TIDA-00746 — TIDA-00746 is a 17W system-optimized SMPS design for automotive infotainment processor power. The design has been tested for and passed CISPR25 Class 5 conducted EMI  limits.  All buck converters used in this design is switching above AM band (>1.85MHz).

The design is divided into four major blocks:
  1. (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Automotive ADAS Reference Design for Four Camera Hub with Integrated ISP and DVP Outputs
TIDA-00455 — The TIDA-00455 camera hub reference design allows up to four 1.3 Megapixel cameras to be connected to a TDA2x SoC Evaluation Module (EVM). Each camera connects to the hub through a single coax cable.  There are two OmniVision OV490 ISPs on the board that process the video and export it in (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Automotive ADAS Reference Design for Four Camera Hub with MIPI CSI-2 Output
TIDA-01005 — This camera hub reference design allows connection of up to four 1.3-megapixel cameras to a TDA3x system-on-chip (SoC) evaluation module (EVM). Each camera connects to the hub through a single coax cable. Using FPD-Link III connections, the cameras are connected to a four-port deserializer. The (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Automotive eCall Power Supply Reference Design with High Intermediate Voltage
PMP9768 — This reference design includes a complete power management solution for a standalone emergency call (eCall) system in an automotive environment. The circuit is supplied directly from the car battery rail. It also manages a backup battery to power the eCall system while the car battery rail is not (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
ADAS Sensor Interconnect Reference Design Board for Remote Camera and Radar Modules
TIDA-00271 The ADAS Sensor Interconnect Board is intended for applications where remote sensors like cameras, LIDAR or radar modules need to be connected to a central processing ECU. The board supports up to 3 coaxial and 1 LVDS twisted pair data inputs as well as 3 FMC cable and 1 board to board connector as (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
SOT-23 (DBV) 5 View options

Ordering & quality

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos

Related videos