HIP4086ABZT

The HIP4086A (referred to as the HIP4086/A) are three phase N-Channel MOSFET drivers. Both parts are specifically targeted for PWM motor control. These drivers have flexible input protocol for driving every possible switch combination. The user can even override the shoot-through protection for switched reluctance applications. The HIP4086/A have a wide range of programmable dead times (0.5µs to 4.5µs) which makes them very suitable for the low frequencies (up to 100kHz) typically used for motor drives. 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. Another useful feature of the HIP4086/A is the programmable undervoltage set point. The set point range varies from 6.6V to 8.5V

• Independently drives 6 N-Channel MOSFETs in three-phase bridge configuration
• Bootstrap supply max voltage up to 95VDC with bias supply from 7V to 15V
• 1.25A peak turn-off current
• User programmable dead time (0.5µs to 4.5µs)
• Bootstrap and optional charge pump maintain the high-side driver bias voltage.
• Programmable bootstrap refresh time
• Drives 1000pF load with typical rise time of 20ns and fall time of 10ns
• Programmable undervoltage set point