LM4040C25QDBZT Integrated Circuits (ICs)

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The LM4040C25QDBZT is a precision shunt regulator and temperature input voltage reference. It offers extremely low noise voltage and temperature coefficient to ensure that the circuit is operating accurately. It is an excellent choice for use in a wide range of circuit applications and is easily controlled through the LM4040C25QDBZT\'s flexible control logic.

What is a PMIC - Voltage Reference?

A PMIC - Voltage Reference is a device that precisely produces a synchronous voltage and current signal to provide a constant voltage signal in applications where small currents may be used. It is used to maintain a reference voltage by comparing the voltage of an external device or a specific current and maintaining the reference. The PMIC - Voltage Reference includes an array of integrated circuit blocks that implement logic, analog, and digital functions including voltage regulation and error detection.

Features of LM4040C25QDBZT

The LM4040C25QDBZT is a temperature compensated reference voltage device which provides a stable voltage output over a wide temperature range. It has a wide operating temperature range of -40°C to +125°C. It offers high precision, low noise, and sharp turn-on performance. It has low temperature coefficient and low quiescent current to ensure constant output accuracy. It also offers reverse output protection of up to -50V. Other features include a 1.25V reference voltage stem, turn-on time less than 2µs, and accuracy up to 1%.

Application Fields

The LM4040C25QDBZT is mainly used for precision voltage references, power supplies and regulators, on-board current sensing circuits, power supplies, battery chargers and regulators, over-voltage protection circuits, automotive, and industrial measurement instrumentation. It is also suitable for medical, power tool, home appliance and telecom applications due to its large temperature range and zero drift performance.

Working Principle

The LM4040C25QDBZT is an on-chip band-gap reference device designed to generate a precise and stable 1.25V output voltage. It contains an on-chip band-gap circuit with a high-precision voltage reference. The integrated circuitry allows the output voltage to be set at 1.25V. This voltage controls an external voltage divider connected to the output of the device, which sets the actual reference voltage level. As the temperature changes, the output voltage is adjusted to maintain a constant reference voltage level. The output voltage is also adjusted if the input voltage changes.

The LM4040C25QDBZT also offers an enable/disable feature for power management. When the enable/disable input logic is high, the device is enabled and will operate as normal. When set to low, the device will enter in standby mode. In standby mode, the majority of the current drawn from the device is reduced significantly. This feature is useful for power sensitive applications where power dissipation needs to be minimized.

Conclusion

In conclusion, the LM4040C25QDBZT is a precision shunt regulator and temperature input voltage reference. It is an excellent choice for use in a wide range of circuit applications, providing high precision and low noise performance. It can be used in a wide range of applications including precision voltage references, power supplies, battery chargers and over-voltage protection circuits. The LM4040C25QDBZT is a PMIC - Voltage Reference providing precise and stable 1.25V output voltage with low temperature coefficient and high precision accuracy.

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