PM8851D Integrated Circuits (ICs)

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PM8851D is a state-of-the-art driver for low-power, high-performance and low-footprint integrated power management (PMIC) applications. It is an advanced single-channel gate driver with reverse current protection and a high slew rate. The PM8851D is designed to support high transient loads, low-power applications and high-voltage control. Its advanced features include adjustable speed control, over-current protection and logic-has-control (LHC) support for high-current applications. The device is well suited for switching circuits and power conversion applications.

Application Field

The PM8851D is suitable for a wide range of gate driver applications, ranging from motor control, solenoid actuators, stepper motors, and more. This device is particularly well suited for high-power applications, as it can support high transient loads, high-voltage control, and over-current protection. It is also capable of supporting logic-has-control (LHC) applications, where the logic signals can control the high-current loads.

The PM8851D is an ideal choice for a variety of motor control applications, including brushless DC motor control and stepper motor control. Its reverse current protection and high speed control features guarantee low-emissions and interference, and its adjustable speed control allows for simplified tuning. This device also supports battery and charger management, power conversion, automotive, and smart lighting solutions.

Working Principle

The PM8851D is a single-channel, intelligent gate driver with reverse current protection. The device features an adjustable drive current capability up to 1.5A and an adjustable slew rate to accommodate a wide range of load sensitivities and power requirements. The reverse current protection circuit of the PM8851D prevents current from flowing back into the power supply line when the output is shorted, thus protecting the power supply.

This device integrates a logic-has-control (LHC) feature, which allows the logic control signals to control the high-current loads. The PM8851D is also capable of providing a low on-resistance and high switching frequency, while offering a wide range of adjustable drive and slew rates. This enables the device to support highly efficient, high-speed switching at low power requirements.

The PM8851D also integrates eight programmable termination options, providing the flexibility to choose a suitable gate termination for different gate drive requirements. The PM8851D is capable of driving a wide variety of gate capacitances, allowing for power conversion solutions with low losses. Furthermore, the device features an adjustable dead time control with an optimizer to enable fast and accurate tuning.

Overall, the PM8851D is a powerful gate driver solution that offers exceptional performance, high power efficiency, as well as high input and output protection. With its advanced features, the device is ideal for a wide range of applications, including motor control, battery and charger management, power conversion, automotive, and smart lighting solutions.

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