TLVH431BQDCKR
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Texas Instruments TLVH431BQDCKR

Manufacturer No:
TLVH431BQDCKR
Manufacturer:
Texas Instruments
Package:
Tape & Reel (TR)
Description:
IC VREF SHUNT ADJ 0.5% SC70-6
Delivery:
Payment:
iso14001
iso45001
iso9001
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Product Introduction

Overview

The TLVH431BQDCKR, produced by Texas Instruments, is a low-voltage adjustable precision shunt regulator. This device is part of the TLVH431 series, known for its low power consumption and high precision voltage reference capabilities. It is designed to operate with a low reference voltage of approximately 1.24V, making it suitable for a wide range of applications requiring low-voltage adjustability.

The TLVH431BQDCKR is characterized by its ability to adjust the output voltage from 1.24V to 18V using two external resistors, and it features a high degree of thermal stability over various temperature ranges. This makes it an excellent choice for industrial, automotive, telecom, and computing applications.

Key Specifications

Parameter Description Value
Reference Voltage (VREF) At 25°C, VKA = VREF, IK = 10mA 1.221V to 1.265V
VREF Deviation over Full Temperature Range VKA = VREF, IK = 10mA 11mV to 31mV
Operating Temperature Range –40°C to +125°C
Package SOT-23 (DBZ)
Minimum Cathode Current (IK(min)) 100µA
Sink-Current Capability 1mA to 100mA
Output Impedance Typical 0.2Ω
Reference Terminal Current (Iref) IK = 10mA, R1 = 10kΩ, R2 = open 0.1µA to 0.5µA

Key Features

  • Low-Voltage Operation: The TLVH431BQDCKR operates down to 1.24V, making it suitable for low-voltage applications.
  • Adjustable Output Voltage: The output voltage can be adjusted from 1.24V to 18V using two external resistors.
  • High Precision: Available with initial tolerances of 0.5%, 1%, and 1.5% at 25°C, denoted by B, A, and standard grades respectively.
  • Thermal Stability: Operates over a wide temperature range from –40°C to +125°C, ensuring good stability over the entire range.
  • Low Output Noise and Low Output Impedance: Features low output noise and a typical output impedance of 0.2Ω, enhancing its performance in various applications.
  • High Sink-Current Capability: Can sink currents from 1mA to 100mA, making it versatile for different load requirements.

Applications

  • On-Board Regulation: Ideal for on-board voltage regulation due to its adjustable output voltage and high precision.
  • Adjustable Power Supplies: Used in adjustable power supplies where precise voltage regulation is required.
  • Switching Power Supplies: Suitable for switching power supplies due to its low output impedance and high sink-current capability.
  • Industrial, Automotive, and Telecom: Applicable in various industrial, automotive, and telecom applications requiring low-voltage adjustability and high thermal stability.
  • Computing: Used in computing applications where precise voltage regulation is critical.

Q & A

  1. What is the reference voltage of the TLVH431BQDCKR?

    The reference voltage (VREF) of the TLVH431BQDCKR is approximately 1.24V.

  2. What is the adjustable output voltage range of the TLVH431BQDCKR?

    The output voltage can be adjusted from 1.24V to 18V using two external resistors.

  3. What are the temperature ranges for the TLVH431BQDCKR?

    The device operates over a temperature range of –40°C to +125°C.

  4. What is the typical output impedance of the TLVH431BQDCKR?

    The typical output impedance is 0.2Ω.

  5. What is the minimum cathode current required for the TLVH431BQDCKR?

    The minimum cathode current (IK(min)) is 100µA.

  6. What are the available tolerance grades for the TLVH431BQDCKR?

    The device is available with initial tolerances of 0.5%, 1%, and 1.5% at 25°C, denoted by B, A, and standard grades respectively.

  7. What is the sink-current capability of the TLVH431BQDCKR?

    The device can sink currents from 1mA to 100mA.

  8. What package type is the TLVH431BQDCKR available in?

    The device is available in a SOT-23 (DBZ) package.

  9. What are some common applications of the TLVH431BQDCKR?

    Common applications include on-board regulation, adjustable power supplies, switching power supplies, and various industrial, automotive, telecom, and computing applications.

  10. How does the TLVH431BQDCKR compare to Zener diodes in terms of performance?

    The TLVH431BQDCKR offers a sharper turn-on characteristic and better thermal stability compared to traditional Zener diodes, making it an excellent replacement in many applications.

Product Attributes

Reference Type:Shunt
Output Type:Adjustable
Voltage - Output (Min/Fixed):1.24V
Voltage - Output (Max):18 V
Current - Output:70 mA
Tolerance:±0.5%
Temperature Coefficient:- 
Noise - 0.1Hz to 10Hz:- 
Noise - 10Hz to 10kHz:- 
Voltage - Input:- 
Current - Supply:- 
Current - Cathode:100 µA
Operating Temperature:-40°C ~ 125°C (TA)
Mounting Type:Surface Mount
Package / Case:6-TSSOP, SC-88, SOT-363
Supplier Device Package:SC-70-6
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Similar Products

Part Number TLVH431BQDCKR TLVH431BQDCKT TLVH431QDCKR TLVH431AQDCKR TLVH431BCDCKR TLVH431BIDCKR
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Product Status Active Active Active Active Active Active
Reference Type Shunt Shunt Shunt Shunt Shunt Shunt
Output Type Adjustable Adjustable Adjustable Adjustable Adjustable Adjustable
Voltage - Output (Min/Fixed) 1.24V 1.24V 1.24V 1.24V 1.24V 1.24V
Voltage - Output (Max) 18 V 18 V 18 V 18 V 18 V 18 V
Current - Output 70 mA 70 mA 70 mA 70 mA 70 mA 70 mA
Tolerance ±0.5% ±0.5% ±1.5% ±1% ±0.5% ±0.5%
Temperature Coefficient - - - - - -
Noise - 0.1Hz to 10Hz - - - - - -
Noise - 10Hz to 10kHz - - - - - -
Voltage - Input - - - - - -
Current - Supply - - - - - -
Current - Cathode 100 µA 100 µA 100 µA 100 µA 100 µA 100 µA
Operating Temperature -40°C ~ 125°C (TA) -40°C ~ 125°C (TA) -40°C ~ 125°C (TA) -40°C ~ 125°C (TA) 0°C ~ 70°C (TA) -40°C ~ 85°C (TA)
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount
Package / Case 6-TSSOP, SC-88, SOT-363 6-TSSOP, SC-88, SOT-363 6-TSSOP, SC-88, SOT-363 6-TSSOP, SC-88, SOT-363 6-TSSOP, SC-88, SOT-363 6-TSSOP, SC-88, SOT-363
Supplier Device Package SC-70-6 SC-70-6 SC-70-6 SC-70-6 SC-70-6 SC-70-6

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