TL1431IZ-AP

The TL1431IZ-AP is a monolithic voltage reference device with low drift, low noise, and low power consumption. It is an integrated circuit with a nominal output of 1.24V and is ideal for applications such as reference accuracy in digital circuits and light current supply for A/D converters and microprocessors.

The TL1431IZ-AP, belonging to the family of PMIC - Voltage Reference, is a two-terminal temperature compensated CMOS shunt regulator with a high output stability and low temperature coefficient. It is available in an 8-pin mini-DIP package and is designed to provide reference voltages in the range of +1.2350V to +1.2470V. The device is designed to operate with a supply voltage of +3V to +5.5V, accepting input voltages of up to +12V.

The TL1431IZ-AP has a wide range of working temperatures, from -40°C to +85°C, with an operating frequency of up to 25kHz. It also has a rated current of 0.5mA and a maximum output current of 2.5mA. The device also has an excellent line regulation of 0.02%.

Internally, the TL1431IZ-AP has a temperature compensation network, current taps, and a current mirror. The temperature compensation network allows temperature variations to be compensated and the current taps adjust the output voltage. The current mirror is used to generate a larger voltage by multiplying the input voltage. When the supply voltage is applied to the TL1431IZ-AP, it starts to regulate the output voltage to the set point via the temperature compensation network.

The device is protected with a latch-up circuitry which prevents the output from going to overvoltage or reverse-current levels and an overvoltage protection circuit which will shut the device off and re-set the output voltage to the nominal voltage if the voltage of the input exceeds the specified limit. The TL1431IZ-AP also has an open-drain shutdown pin and a power-on reset circuit, which ensures that the device is correctly initialized.

In terms of applications, the TL1431IZ-AP is used for reference accuracy in digital circuits, such as A/D converters and microprocessors, enabling accurate measurement of input voltages. It is also ideal for designing constant-voltage supplies of low current in portable telecommunication and computing devices, providing a more reliable and accurate power supply with low power consumption.

In summary, the TL1431IZ-AP is an excellent choice for an integrated circuit with a reliable and accurate output voltage in applications requiring low noise, low power consumption and exact reference accuracy. It is an ideal choice for a variety of mobile, industrial, automotive and consumer electronics applications.