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MP6517GJS-XXXX-P Application Field and Working Principle

The MP6517GJS-XXXX-P is a high efficient and highly integrated motor driver. It features a built-in multi-mode controller, current sense amplifier and buffer, high-side and low-side drivers, and a set of protection features. It is an ideal choice for brushless and DC motor applications.

Application Field

The MP6517GJS-XXXX-P is designed to drive brushless DC and DC motors. It can be used in a wide range of applications such as small appliances, office equipment, toys, motors, pumps, and more. The MP6517GJS-XXXX-P is especially suited for high-efficiency applications because of its low quiescent current and built-in protection features.

Working Principle

The MP6517GJS-XXXX-P motor driver includes a high-side driver (PH1) and a low-side driver (PH2) that switch on/off high current flows to the motor. The present current of the motor is sampled to the input voltage (VCS) pin and compared against the reference set-point. The result is then used to update the duty cycles of the two drivers. When the device is in the low side driver (PH2) off state, the charge pump voltage VCP is generated from VCC, allowing the PH2 to be enabled when the low side driver is off.

The MCU provides the input signal for locking or braking, which is received and processed by the controller. With the help of a high-side sense resistor, the charge pump and the current sense pin (VCS), the motor current is known and the MCU can accordingly decide when to lock or brake the motor. The motor current is sensed by the VCS pin and is compared with the reference voltage set-point to update the duty cycles of the PH1 and PH2 drivers.

The MP6517GJS-XXXX-P also includes a variety of built-in protection features. It has an on-chip Thermal Shut Down (TSD) circuit to guarantee thermal protection. It also provides a monitoring circuit and an open drain enable pin that can be used to enable/disable the motor driver. In addition, the supply and load voltages are monitored by under-voltage (UV) protection, over-voltage (OV) protection and overload detection circuit.

Conclusion

The MP6517GJS-XXXX-P motor driver is a highly integrated and efficient motor driver. It can be used in a wide range of brushless DC and DC motor applications. Its built-in protection features enable high reliability and robustness. Its adjustable current sensing, low quiescent current, and high efficiency make it an ideal choice for high-efficiency motor applications.

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