HIP4086

80V, 500mA, 3-Phase MOSFET Driver HIP4086, HIP4086A The HIP4086 and 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 (0.5ms to 4.5ms) which makes them very suitable for the low frequencies (up to 100kHz) typically used for motor drives. 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. 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. Features • 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 Applications • Brushless Motors (BLDC) • 3-phase AC motors • Switched reluctance motor drives • Battery powered vehicles • Battery powered tools Related Literature AN9642 “HIP4086 3-Phase Bridge Driver Configurations and Applications” ”HIP4086EVAL Evaluation Board Application Note” (Coming Soon) VDD 200 VDD RDEL CHB BHB AHB VxHB - VxHS = 10V OUTPUT CURRENT (µA) 150 AHO HIP4086/A BHO CHO CHS BHS AHS Speed Battery 24V...48V AHI ALI Controller Brake BHI BLI CHI CLI 100 VSS ALO BLO CLO 50 0 -60 -40 -20 0 20 40 60 80 100 120 140 160 JUNCTION TEMPERATURE (°C) FIGURE 1. TYPICAL APPLICATION FIGURE 2. CHARGE PUMP OUTPUT CURRENT June 1, 2011 FN4220.7 1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas Inc. 2011. All Rights Reserved Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries. All other trademarks mentioned are the property of their respective owners. HIP4086, HIP4086A Block Diagram (for clarity, only one phase is shown) If under voltage is active or if DIS is asserted, the high and low-side drivers are turned off. drive enable common with all phases Adjustable Turn-on Delay 10 nSec delay Under Voltage Detector delay disable Refresh Pulse common with all phases Adjustable Turn-on Delay VDD Charge Pump* EN 16 xHB xHI 5 DIS 10 VDD 20 UVLO 8 RFSH 9 Level Shifter *The charge pump is permanently disabled in the HIP4086A. 17 xHO 18 xHS common with all phases VDD 21 xLO 6 VSS xLI 4 RDEL 7 2 uSec Delay common with all phases 100 mV If the voltage on RDEL is less than 100 mV, the turn-on delay timers are disabled and the high and low-side drivers can be turned on simultaneously. Truth Table INPUT ALI, BLI, CLI X X 1 0 0 1 AHI, BHI, CHI X X X 0 1 0 UV X 1 0 0 0 0 DIS 1 X 0 0 0 0 RDEL X X >100mV X X