HIP4086APZ

DATASHEET HIP4086, HIP4086A FN4220 Rev 1.00 January 12, 2017 80V, 500mA, 3-Phase MOSFET Driver The HIP4086 and HIP4086A (referred to as the HIP4086/A) are 3-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. Features 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. • 1.25A peak turn-off current The only difference between the HIP4086 and the HIP4086A is that the HIP4086A has the built-in charge pumps disabled. This is useful in applications that require very quiet EMI performance (the charge pumps operate at 10MHz). The advantage of the HIP4086 is that the built-in charge pumps allow indefinitely long on times for the high-side drivers. • Independently drives 6 N-channel MOSFETs in 3-phase bridge configuration • Bootstrap supply maximum voltage up to 95VDC with bias supply from 7V to 15V • 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 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. Applications Another useful feature of the HIP4086/A is the programmable undervoltage set point. The set point range varies from 6.6V to 8.5V. • Battery powered tools CHARGE PUMP HIP4086 Yes HIP4086A No • 3-phase AC motors • Switched reluctance motor drives • Battery powered vehicles Related Literature • AN9642, “HIP4086 3-Phase Bridge Driver Configurations and Applications” TABLE 1. KEY DIFFERENCES BETWEEN FAMILY OF PARTS PART NUMBER • Brushless Motors (BLDC) • AN1829, “HIP4086 3-Phase BLDC Motor Drive Demonstration Board, User Guide” VDD VDD CHB RDEL BHB 200 VxHB - VxHS = 10V AHI ALI Controller Brake BHI BLI HIP4086/A AHO Speed BHO CHO CHS BHS AHS CHI CLI VSS ALO BLO CLO Battery 24V...48V OUTPUT CURRENT (µA) AHB 150 100 50 0 -60 -40 -20 0 20 40 60 80 100 120 140 160 JUNCTION TEMPERATURE (°C) FIGURE 1. TYPICAL APPLICATION FN4220 Rev 1.00 January 12, 2017 FIGURE 2. CHARGE PUMP OUTPUT CURRENT Page 1 of 17 HIP4086, HIP4086A Block Diagram (for clarity, only one phase is shown) If undervoltage is active or if DRIVE ENABLE DIS is asserted, the high and low-side drivers are turned off. xHI 5 DIS 10 VDD 20 UVLO 8 RFSH 9 4 RDEL 7 CHARGE PUMP* 16 10ns DELAY UNDERVOLTAGE DETECTOR DELAY DISABLE REFRESH PULSE xHB EN ADJUSTABLE TURN-ON DELAY COMMON WITH ALL PHASES xLI VDD COMMON WITH ALL PHASES LEVEL SHIFTER 17 xHO *The charge pump is permanently disabled in the HIP4086A. 18 xHS VDD COMMON WITH ALL PHASES ADJUSTABLE TURN-ON DELAY 21 xLO 6 COMMON WITH ALL PHASES VSS 2µs Delay If the voltage on RDEL is less than 100mV, the turn-on delay timers are disabled and the high and low-side drivers can be turned on simultaneously. 100mV FIGURE 3. BLOCK DIAGRAM Truth Table INPUT OUTPUT ALI, BLI, CLI AHI, BHI, CHI UV DIS RDEL ALO, BLO, CLO AHO, BHO, CHO X X X 1 X 0 0 X X 1 X X 0 0 1 X 0 0 >100mV 1 0 0 0 0 0 X 0 1 0 1 0 0 X 0 0 1 0 0 0