Description The HIP4080 is a high frequency, medium voltage full bridge N-channel FET driver IC, available in 20 lead plastic SOIC and DIP packages. The HIP4080 includes input comparators to facilitate "hysteresis" and PWM modes of operation. Its hen (high start) lead can force the current flywheel to the bottom two external power MOSFETs, keeping the upper power MOSFET off. Because it can switch frequencies up to 1MHz, it is very suitable for HIP4080 voice coil motor drives, Class D high frequency switching audio switching amplifier amplifiers and power supplies. HIP4080 can also drive medium-pressure brush motors, and two HIP4080s can be used to drive high-performance stepper motors, because short-term minimum "on time" can provide fine microstepping capabilities. The short propagation delay of about 55ns maximizes the control loop crossover frequency and dead times, which can be adjusted to near zero to minimize distortion, resulting in precise control in driving the load. A similar HIP4081 IC allows all 4 independently controlled FETs in a full bridge configuration. See also the HIP4080 application note AN9324. A similar part, the HIP4080A, includes an undervoltage circuit which is not required for the circuit shown in Figure 30 in this datasheet. ...

Features • Capability to drive N-channel FETs including high-side full bridge stamps • Bootstrap power supply maximum voltage 95VDC
• Drive 1000pF load at 1MHz at 50°C with rise and fall times of 10ns (typ) in free air • User programmable dead time • Charge pump and Bootstrap maintain bias consumables • Distribute (disabled) Pin Pull Gates Low • Compatible with Input Logic Thresholds and 5V to 15V Logic Levels • Very Low Power Consumption

Applications•Medium/Large Voice Coil Motor•Full Bridge Power Supply•Class D Audio Power Amplifier•High Performance Motor Control•Noise Cancellation System•Battery Vehicle•Peripherals•UPS...