TL431CPSR

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TL431CPSR

IC VREF SHUNT ADJ 2.2% 8SO

  • Manufacturer
  • Mfr. Part #TL431CPSR
  • Package SOP (PS)-8
  • Datasheet
  • In Stock2056

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Specifications

Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Last Time Buy
ReferenceType Shunt
OutputType Adjustable
Voltage-Output(Min/Fixed) 2.495V
Voltage-Output(Max) 36 V
Current-Output 100 mA
Tolerance ±2.2%
Current-Cathode 1 mA
OperatingTemperature 0°C ~ 70°C (TA)
MountingType Surface Mount
Package/Case 8-SOIC (0.209, 5.30mm Width)

Overview

Description

The TL431CPSR is a versatile programmable shunt regulator, primarily used for precision voltage regulation in various electronic applications. It functions as an adjustable Zener diode with a wide operating voltage range, typically from 2.5V to 36V. The device is known for its stability and accuracy, making it ideal for use in power supply circuits, voltage monitoring, and reference applications.
The TL431CPSR features an internal amplifier that compares the input voltage at the reference pin against an internal voltage reference. By adjusting the resistors connected to the reference pin, the output voltage can be precisely set to the desired level. This makes it highly adaptable for different circuit designs.
Key specifications include a typical output voltage tolerance of ±0.5%, a low output impedance, and a temperature coefficient typically around 50 ppm/°C. It is available in various packages, such as TO-92, SOT-23, or SOT-89, making it suitable for both through-hole and surface-mount applications.
Overall, the TL431CPSR is valued for its precision, reliability, and ease of use, making it a popular choice for designers looking for reliable voltage regulation solutions.

Features

The TL431CPSR is a precision programmable shunt regulator. Key features include:
1. Adjustable Output Voltage: The output voltage can be set to any value between 2.5 V and 36 V with two external resistors, making it highly versatile for various applications.
2. Precision Reference: It offers a precise 2.5 V reference voltage with a tolerance as low as ±0.5%, ensuring high accuracy and stability in voltage regulation.
3. Wide Operating Current: The device operates over a broad current range, typically from 1 mA to 100 mA, providing flexibility for different load conditions.
4. Temperature Stability: It exhibits excellent temperature stability, which is critical for maintaining performance across varying environmental conditions.
5. Low Output Impedance: The TL431CPSR has a low output impedance, which helps in maintaining a steady output voltage under varying loads.
6. SOT-89 Package: It comes in a compact SOT-89 package, saving space on the PCB and making it suitable for applications with size constraints.
These features make the TL431CPSR suitable for use in power supplies, voltage monitoring, and precision current limiting applications.

Package

The TL431CPSR is a precision programmable shunt regulator packaged in a surface-mount SOT-89 package type. This package is designed for applications requiring accurate voltage references and is commonly used in power management and voltage regulation circuits.

Pinout

The TL431CPSR is a precision programmable voltage reference typically housed in a 3-pin package. The three pins are usually designated as:
1. Reference (REF): This pin is used to set the desired output voltage. By connecting it to an external resistor network, users can configure the output voltage over a wide range.
2. Anode (A): This pin is the anode terminal of the device, and it is typically connected to the ground or the negative side of the input voltage.
3. Cathode (K): The cathode pin acts as the output and is where the regulated voltage can be sourced from. It also connects to the load as well as the power supply.
The TL431CPSR functions as an adjustable shunt regulator, allowing it to provide a stable reference voltage, which is essential for precision applications like power supplies, converters, and voltage monitoring systems. Its ability to be programmed for various voltages makes it versatile for use in multiple circuits.

Manufacturer

The TL431CPSR is manufactured by Texas Instruments. Texas Instruments (TI) is an American technology company headquartered in Dallas, Texas. It is known for designing and manufacturing semiconductors and various integrated circuits, which are used in a wide range of electronic devices. TI is one of the largest producers of analog technology components and embedded processors, making it a key player in the electronics industry. The company serves diverse markets including automotive, industrial, consumer electronics, communications equipment, and enterprise systems.

Application

The TL431CPSR is a precision programmable voltage reference typically used in various electronic applications. Its common application areas include voltage regulators, power supply modules, and switching power supplies. It is also used in adjustable voltage and current sources, secondary side regulation in power converters, and as a reference in analog-to-digital converters (ADCs). Additionally, it can be utilized in battery chargers and LED drivers for maintaining constant voltage or current levels. Its versatility and precision make it suitable for a wide range of circuit designs.

Equivalent

The TL431CPSR is a programmable precision reference. Equivalent products include LM431, LMV431, TLV431, and KA431. These components generally offer similar voltage reference capabilities and are used in comparable applications such as adjustable voltage regulators and precision current limiters. Always check the datasheets for specific characteristics and compatibility.

Shipping

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DHL: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 2-5 business days.

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UPS: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 3-7 business days.

TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.

EMS: Shipping cost ranges from $30-$50 (0.5kg), with an estimated delivery time of 7-15 business days.

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