The HIP4083 is a three phase high side N-channel MOSFET

driver, specifically targeted for PWM motor control. Two

HIP4083 may be used together for 3 phase full bridge

applications (see application block diagram). Alternatively,

the lower gates may be controlled directly from a buffered

microprocessor output.

Unlike other members of the HIP408x family, the HIP4083

has no built in turn-on delay. Each output (AHO, BHO, and

CHO) will turn-on 65ns after its input is switched low.

Likewise, each output will turn-off 60ns after its input is

switched high. Very short and very long dead times are

possible when two HIP4083 are used to drive a full bridge.

This dead time is controlled by the input signal timing.

The HIP4083 does not have a built in charge pump.

Therefore, the bootstrap capacitors must be recharged on a

periodic basis by initiating a short refresh pulse. In most

bridge applications, this will happen automatically every time

the lower FETs turn-on and the upper FETs turn-off.

However, it is still possible to use the HIP4083 in

applications that require the high side FETs to be on for

extended periods of time. This can be easily accomplished

by sending a short refresh pulse to the DIS pin.

The HIP4083 has reduced drive current compared to the

HIP4086 making it ideal for low to moderate power

applications. The HIP4083 is optimized for applications

where size and cost are important. For high power

applications driving large power FETs, the HIP4086 is

recommended.

Features

• Independently Drives Three High Side N-Channel

MOSFETs in Three Phase Bridge Configuration

• Bootstrap Supply Max Voltage to 95VDC

• Bias Supply Operation from 7V to 15V

• Drives 1000pF Load with Typical Rise Times of 35ns and

Fall Times of 30ns

• CMOS/TTL Compatible Inputs

• Programmable Undervoltage Protection

• Pb-free Available

Applications

• Brushless Motors

• High Side Switches

• AC Motor Drives

• Switched Reluctance Motor Drives