The HIP4086ABZ is a 3-phase N-channel full-bridge MOSFET Driver. This driver have flexible input protocol for driving every possible switch combination. It has a wide range of programmable dead times (0.5 to 4.5µs) which makes them very suitable for the low frequencies (up to 100kHz) typically used for motor drives. This is useful in applications that require very quiet EMI performance (the charge pumps operate at 10MHz). The advantage of this is built-in charge pumps allow indefinitely long on times for the high-side drivers. To insure that the high-side driver boot capacitors are fully charged prior to turning on, a programmable bootstrap refresh pulse is activated when VDD is first applied. When active, the refresh pulse turns on all three of the low-side bridge FETs while holding off the three high-side bridge FETs to charge the high-side boot capacitors. After the refresh pulse clears, normal operation begins.
Independently drives 6 N-channel FET in 3-phase bridge configurations
95VDC Bootstrap supply maximum voltage with bias supply from 7 to 15V
1.25A Peak turn-off current
Bootstrap and optional charge pump maintain high-side driver bias voltage
Programmable bootstrap refresh time
Drives 1000pF load with typical rise time of 20ns and fall time of 10ns
Programmable under-voltage set point
Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and result in failures not covered by warranty.
