MP6400DJ-12-LF-P

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PMIC - Supervisors

The MP6400DJ-12-LF-P is a supervisor circuit designed with system and battery protection in mind.It is used to provide monitoring of system power supply and detect power supply overvoltage, undervoltage, overcurrent and battery low condition, as well as open wire detection, and will generate the corresponding outputs with an integral power on reset, power supply out pin and power good (PG) pin.

Application Field

The MP6400DJ-12-LF-P provides features that are particularly useful in consumer electronics and laptop computer electronics systems, where design of power supplies needs to be fit with important conditions, including working properly in different, even extreme, operating temperature conditions. The chip integrates overvoltage, undervoltage, overcurrent and battery low condition protection, open wire detection as well as providing monitoring of the system power supply. The circuit also has low power consumption and requires minimal power support, making it ideal for long-term reliable operation under harsh conditions.

In addition, the MP6400DJ-12-LF-P can be used in automotive electronics, automotive safety systems, industrial control systems, medical devices, and many other applications.

Working Principle

The MP6400DJ-12-LF-P integrates multiple power supply and monitoring devices in a single device. The circuit provides overvoltage and undervoltage protection for DC input, overcurrent and short circuit protection for charging current, open wire and short circuit protection for battery, and low battery protection. When the input voltage exceeds the overvoltage protection threshold, an interrupt signal is generated, and the system power supply is stopped. The undervoltage protection circuit can detect whether the system power supply and battery voltage are below the protection threshold. When the input voltage is lower than the undervoltage protection threshold, an interrupt signal is generated and the system power supply is stopped. When the output current exceeds the overcurrent protection threshold, an interrupt signal is generated and the system power supply is stopped. When the battery voltage is lower than the low voltage protection threshold, an interrupt signal is generated and the system power supply is stopped. When the open wire protection or short circuit protection is triggered, an interrupt signal is generated and the system power supply is stopped. The Power On reset circuit monitors the power up state, and the Power Good circuit provides the open wire or short circuit detection.

The MP6400DJ-12-LF-P also integrates an adjustable auto-resetting timer for input power supply supervision, and two external resistor controlled reset outputs for input power supply supervision. The first reset output is used to reset the system frequently, and the second reset output is used to reset the system prematurely. The circuit also provides a power good signal which is sent to the system when the power is on and the power good signal is ready. The multiple power supply and monitoring functions mentioned above make the chip suitable for designing various power management circuits.

Conclusion

The MP6400DJ-12-LF-P supervisor circuit is a good choice for designing various power management circuits. It integrates multiple power supply protections such as overvoltage, undervoltage, overcurrent, low voltage, open wire, and short circuit protection and provides a power on reset and power good signal for input power supply supervision. With its low power consumption and maximum thermal performance, the MP6400DJ-12-LF-P is a reliable and efficient power supply protection circuit for a wide range of applications.

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