TL431ACPW

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Voltage reference is the output voltage of a device, usually an integrated circuit that remains relatively constant regardless of the load, temperature, or power supply variations. It is a key building block of PMIC (Power Management Integrated Circuit) design, since most embedded systems require very stable voltages for proper operation. The TL431ACPW is one such voltage reference that is widely used in today\'s portable electronic devices.

The TL431ACPW is an adjustable precision shunt regulator diode with integrated 0.2 Ohm resistor. It is available in an 8-pin SOIC-7 package. This voltage reference can be used in a wide variety of applications, such as automotive power supplies, LED lighting, switching power supplies and motor control circuits. The main advantage of the TL431ACPW is that it is able to provide very accurate and stable output voltage, with excellent load and temperature regulation characteristics.

The TL431ACPW consists of an adjustable two terminal bandgap reference and two external resistors. The two external resistors are used to set the output voltage using the following equation:

V_Reference = 1.24 \cdot (1 + \frac {R2}{R1})

Where:

• R1 is the reference resistor
• R2 is the adjustable resistor
• V_Reference is the output voltage of the TL431ACPW

The TL431ACPW has a typical operating temperature range of -40ºC to 85ºC, with an output voltage stability of 0.1%/V at 25ºC. The maximum output current of the device is 150mA, and the maximum output voltage is 36V. It has very low quiescent current (typically 10uA), and the device is also capable of providing protection against reverse currents and current spikes.

The TL431ACPW also has excellent accuracy and flexibility. It can operate in both adjustable and fixed output voltage modes, with a typical accuracy of 0.5%. It is also equipped with a thermal shut-down feature, which can protect the device from damage due to over-temperature conditions.

In summary, the TL431ACPW is an ideal voltage reference for a wide variety of applications. It is capable of providing very accurate and stable output voltages, with excellent load and temperature regulation characteristics. The device is also highly flexible, allowing it to be used in both adjustable and fixed output voltage modes. With its low quiescent current, excellent accuracy, and thermal shut-down feature, the TL431ACPW is an ideal choice for any PMIC design.

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