MIC5020YM

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PMIC - Gate Drivers

A robust power management integrated circuit (PMIC) is an integrated circuit (IC) specifically designed to manage the power of a large-scale system. These ICs are used in many applications, such as in embedded systems, laptop computers, mobile phones, automotive electronics and consumer electronics. The MIC5020YM is a high-performance PMIC developed by a leading manufacturer – Monolithic Power Systems (MPS) – that is specifically designed to drive and protect low-voltage power supplies.

MIC5020YM Application Field

The MIC5020YM PMIC is an integrated device that incorporates both the gate driver and power supply protection circuitry. Its primary focus lies in providing an optimized gate driver solution for a wide range of MOSFET switches used in low-voltage power systems. Additionally, the MIC5020YM can be used in applications such as multi-phase power supplies, DC/DC converters, PFC, and amplifier circuits. This versatile PMIC is also used in multiple types of motor control, and can be employed to drive various power factors correction (PFC) boost stages, as well as pulse width modulation (PWM) and hysteretic approaches.

MIC5020YM Working Principle

The MIC5020YM icPMIC integrates a gate driver circuit for controlling MOSFET switches in low-voltage power systems. It includes all the necessary protection elements to ensure safe device operation, such as an under-voltage protection circuit that disables the gate driver output when the power supply voltage drops below the specified threshold. It also contains a slew-rate control circuit that prevents voltage spikes during the turn-on and turn-off actions.

The gate driver features two gate outputs – one associated with each of the two MOSFETs – that are activated simultaneously, helping to prevent switching losses. The gate driver has an adjustable delay time that ensures the gates open at the optimal time and helps to minimize switching losses. Additionally, the MIC5020YM icPMIC provides a fault flag output which can be used to alert the host system in the presence of a fault.

Conclusion

The versatile MIC5020YM icPMIC from MPS offers a robust, low-voltage power management system with protection circuit and a powerful gate driver. It is ideal for multi-phase power supplies, DC/DC converters, PFC, motor control, and amplifier circuits. Its slew rate control circuit helps to reduce switching loss and the adjustable delay time enables the gates to open at the ideal point in time. The fault flag output provides ample warning of any problems that arise with the host system.

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