LP3470IM5-4.38/NOPB

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LP3470IM5-4.38/NOPB Application Field and Working Principle

Power management integrated circuit (PMIC) supervision is a critical component in any electronic system, as it protects the entire circuit against any potential damage due to short circuits or risky current flow. The Texas Instruments LP3470IM5-4.38/NOPB is an advanced PMIC supervisor IC, providing superior quality and reliability. This parts overview explains the principles of operation, application fields and its unique features.

Features

The LP3470IM5-4.38/NOPB is rated to operate from a -40°C to 85°C with a maximum output current of 1.5A. It is a high-performance PMIC, featuring under-voltage lockout, brown out detection and power-on-reset (POR) circuits, as well as a push-pull output. The IC provides integrated protection against false triggering in case of ESD events and offers a wide input voltage range, allowing it to be used in many diverse application fields.

In addition, the LP3470IM5-4.38/NOPB features integrated high-speed comparators that can independently detect high and low-voltage rails. This feature allows the IC to detect any potential failures in the voltage supply, including over-current or over-temperature protection, before damaging the entire circuit.

The LP3470IM5-4.38/NOPB also includes on-chip monitoring and protection functions for batteries, such as over-discharge detection and charger overload protection, providing enhanced security and reliability.

The IC is provided in two temperature grades: Extended and industrial, with a maximum operating frequency up to 16MHz. It also offers advanced features such as adjustable hysteresis, adjustable POR thresholds, and a programmable watchdog timer that allows the user to adjust the timeout periods.

Mode of Operation

The LP3470IM5-4.38/NOPB is a linear voltage regulator. In under-voltage lockout (UVLO) mode, the input voltage must exceed the UVLO thresholds before the device begins to regulate the output voltage. In brown-out detection (BOD) mode, the device enters a low-power state if the input voltage drops below its BOD threshold. The LP3470IM5-4.38/NOPB is designed to prevent the circuit from resetting in the event of transient input voltage drops. The push-pull output drivers protect the system against shorts and over-currents. The watchdog timer is enabled when the POR function is enabled and monitors the circuit for any potential failure. If the timer expires, the circuit is reset, preventing any further damage. The device is designed to operate with a wide range of input voltages, so it can also be used as a high-performance regulator.

Application Fields

The LP3470IM5-4.38/NOPB is a high-performance PMIC supervisor IC, ideally suited for use in a wide range of system applications, such as industrial control systems, embedded systems and automotive systems. Its wide input voltage range makes it suitable for regulating either linear or switch mode supplies. It is especially suitable for providing over-voltage and over-current protection, as well as protection against brownouts and under-voltage lockouts. The LP3470IM5-4.38/NOPB is also an ideal choice for regulating emergency lighting systems, and for providing protection for communications and computer systems.

Conclusion

The Texas Instruments LP3470IM5-4.38/NOPB is a high-performance PMIC supervisor IC providing superior quality and reliability. Its extra features such as brown-out detection, push-pull output, on-chip monitoring, programmable watchdog timer, adjustable hysteresis and adjustable POR thresholds make it an ideal choice for use in a wide range of system applications. Thanks to its low power consumption, high operating frequency and wide input voltage range, the LP3470IM5-4.38/NOPB is an excellent choice for those who are looking for an effective PMIC supervisor IC.

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