Texas Instruments

TL431BIPK

The TL431BIPK is a precision programmable shunt regulator manufactured by Texas Instruments. It is a three-terminal device that provides a stable reference voltage and current limit in a variety of applications.

Description:

The TL431BIPK is a high-precision, adjustable shunt regulator that operates from a supply voltage as low as 3V. It features a thermally protected, enable (ON/OFF) pin that allows for efficient power management. The device also has a precision 2.5V reference source with a typical tolerance of ±1% and a bandwidth of 10kHz.

Features:

1. Adjustable output voltage: The output voltage can be adjusted by connecting an external resistor between the output and the reference pins.
2. Precision reference: The TL431BIPK has a precision 2.5V reference source with a typical tolerance of ±1%.
3. Thermal protection: The device features thermal protection to prevent damage due to overheating.
4. Enable pin: The enable pin allows for efficient power management by turning the device on and off.
5. Low dropout voltage: The TL431BIPK has a low dropout voltage, making it suitable for use in low-voltage applications.
6. Compact package: The device is available in a small, surface-mount package, making it ideal for use in space-constrained applications.

Applications:

The TL431BIPK is used in a variety of applications, including:

1. Voltage regulation: The TL431BIPK can be used as a precision voltage regulator in a variety of electronic circuits.
2. Current limiting: The device can be used to limit the current in a circuit, protecting components from damage due to overcurrent.
3. Battery charging: The TL431BIPK can be used in battery charging circuits to regulate the charging voltage and current.
4. LED dimming: The device can be used to control the brightness of LED lights by adjusting the current through the LED.
5. Power supply design: The TL431BIPK can be used in power supply designs to provide a stable reference voltage and current limit.

Overall, the TL431BIPK is a versatile and reliable device that is widely used in a variety of electronic applications. Its precision, thermal protection, and enable pin make it a popular choice for designers looking for a reliable and efficient shunt regulator.