TLV431AIDBZR
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Texas Instruments TLV431AIDBZR

Manufacturer No:
TLV431AIDBZR
Manufacturer:
Texas Instruments
Package:
Tape & Reel (TR)
Description:
IC VREF SHUNT ADJ 1% SOT23-3
Delivery:
Payment:
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Product Introduction

Overview

The TLV431AIDBZR is a low-voltage adjustable precision shunt regulator produced by Texas Instruments. This device is part of the TLV431 family, known for its low-voltage operation and high precision. The TLV431AIDBZR operates with a reference voltage (VREF) of 1.24V and can be adjusted to output voltages ranging from VREF to 6V using two external resistors. It is designed to provide stable voltage regulation with specified thermal stability over various temperature ranges.

Key Specifications

Parameter Value Notes
Reference Voltage (VREF) 1.24V
Output Voltage Range (VO) VREF to 6V Adjustable with external resistors
Reference Voltage Tolerance at 25°C 1% For TLV431A
Typical Temperature Drift 4mV (0°C to 70°C), 6mV (–40°C to 85°C), 11mV (–40°C to 125°C)
Operational Cathode Current (IK) 80µA typical
Output Impedance 0.25Ω typical
Package Types SOT-23-3, SC-70, SOT-23-5, SOT-89, TO-92/TO-226 Varying packages available
Temperature Range –40°C to 125°C for TLV431Q, –40°C to 85°C for TLV431I, 0°C to 70°C for TLV431C

Key Features

  • Low-voltage operation with a reference voltage of 1.24V
  • Adjustable output voltage from VREF to 6V using two external resistors
  • High precision with 1% reference voltage tolerance at 25°C for TLV431A
  • Low operational cathode current of 80µA typical
  • Low output impedance of 0.25Ω typical
  • Ultra-small SC-70 package offering a 40% smaller footprint than SOT-23-3
  • Internally compensated for stability without an output capacitor
  • Active output circuitry providing a sharp turn-on characteristic

Applications

  • On-board voltage regulation and adjustable power supplies
  • Isolated feedback circuits for 3V to 3.3V switching-mode power supplies when used with an optocoupler
  • Replacement for low-voltage Zener diodes in various applications
  • Digital video applications such as IP security cameras, action cameras, drones, wearables, and digital signage

Q & A

  1. What is the reference voltage of the TLV431AIDBZR?

    The reference voltage (VREF) is 1.24V.

  2. What is the adjustable output voltage range of the TLV431AIDBZR?

    The output voltage can be adjusted from VREF (1.24V) to 6V using two external resistors.

  3. What is the reference voltage tolerance at 25°C for the TLV431AIDBZR?

    The reference voltage tolerance at 25°C is 1% for the TLV431A.

  4. What is the typical operational cathode current of the TLV431AIDBZR?

    The typical operational cathode current is 80µA.

  5. What is the typical output impedance of the TLV431AIDBZR?

    The typical output impedance is 0.25Ω.

  6. What are the available package types for the TLV431AIDBZR?

    The available package types include SOT-23-3, SC-70, SOT-23-5, SOT-89, and TO-92/TO-226.

  7. What are the typical applications of the TLV431AIDBZR?

    Typical applications include on-board voltage regulation, adjustable power supplies, and isolated feedback circuits for switching-mode power supplies.

  8. Does the TLV431AIDBZR require an output capacitor for stability?

    No, the TLV431AIDBZR is internally compensated and does not require an output capacitor for stability.

  9. What is the temperature range for the TLV431AIDBZR?

    The temperature range varies by model: –40°C to 125°C for TLV431Q, –40°C to 85°C for TLV431I, and 0°C to 70°C for TLV431C.

  10. Can the TLV431AIDBZR replace low-voltage Zener diodes?

Product Attributes

Reference Type:Shunt
Output Type:Adjustable
Voltage - Output (Min/Fixed):1.24V
Voltage - Output (Max):6 V
Current - Output:15 mA
Tolerance:±1%
Temperature Coefficient:- 
Noise - 0.1Hz to 10Hz:- 
Noise - 10Hz to 10kHz:- 
Voltage - Input:- 
Current - Supply:- 
Current - Cathode:80 µA
Operating Temperature:-40°C ~ 85°C (TA)
Mounting Type:Surface Mount
Package / Case:TO-236-3, SC-59, SOT-23-3
Supplier Device Package:SOT-23-3
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Similar Products

Part Number TLV431AIDBZR TLV431BIDBZR TLV431ACDBZR TLV431AIDBVR
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Product Status Active Active Active Active
Reference Type Shunt Shunt Shunt Shunt
Output Type Adjustable Adjustable Adjustable Adjustable
Voltage - Output (Min/Fixed) 1.24V 1.24V 1.24V 1.24V
Voltage - Output (Max) 6 V 6 V 6 V 6 V
Current - Output 15 mA 15 mA 15 mA 15 mA
Tolerance ±1% ±0.5% ±1% ±1%
Temperature Coefficient - - - -
Noise - 0.1Hz to 10Hz - - - -
Noise - 10Hz to 10kHz - - - -
Voltage - Input - - - -
Current - Supply - - - -
Current - Cathode 80 µA 100 µA 80 µA 80 µA
Operating Temperature -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) 0°C ~ 70°C (TA) -40°C ~ 85°C (TA)
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Package / Case TO-236-3, SC-59, SOT-23-3 TO-236-3, SC-59, SOT-23-3 TO-236-3, SC-59, SOT-23-3 SC-74A, SOT-753
Supplier Device Package SOT-23-3 SOT-23-3 SOT-23-3 SOT-23-5

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