HI-4853PSHF

HI-4853PSHF Application Field and Working Principle

The HI-4853PSHF is a dual-channel, push-pull, half-bridge MOSFET driver designed specifically for high-side and low-side switching. It is capable of driving large loads using up to 2.5A (with a single output driving capability) and is suitable for use with FETs, IGBTs, BJTs, and other types of switches. The driver is capable of working at frequencies up to 1MHz and can be configured to work with a wide range of voltage ranges, from 5V to 24V. It also features a built-in peak current sensing circuit and is designed to provide maximum power efficiency during operation.

The HI-4853PSHF is designed for use in power controllers, such as motor control applications, and is also suitable for use in audio, lighting, and industrial applications that require high-speed switching. The driver is capable of switching devices with a voltage of up to 24V and can handle a maximum output current of 2.5A. It is also capable of operating at frequencies of up to 1MHz and is designed to minimize power dissipation while providing maximum power efficiency.

The HI-4853PSHF has an internal level shifter that allows it to support a wide range of voltage levels. The driver is also equipped with an over-temperature protection circuit to protect devices from damage caused by over-temperature conditions. Furthermore, it is designed to provide short-circuit protection, ESD protection, and over-current protection for better reliability and longer product life.

The working principle of the HI-4853PSHF is based on the use of a voltage or current-based switching control. The driver utilizes an internal pulse-width modulator that generates a PWM signal, which then controls the conduction of the output MOSFETs. The PWM signal is generated using switches that sense input and output voltages and then, when the difference between them exceeds a certain threshold, open and close the output MOSFETS, thus controlling the output voltage or current.

The HI-4853PSHF is capable of driving loads of up to 2.5A and has built-in protection circuits to protect the device from overload, short-circuit, and over-temperature conditions. The driver is also designed to minimize power consumption and maximize power efficiency and is ideal for use in power converters and motor control applications.