设置
快速交货
免运费
国际贸易术语
支付类型
市场产品
Renesas' 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. The HIP4086/A drivers have a wide range of programmable dead times (0.5µs to 4.5µs) which makes them very suitable for the low frequencies (up to 100 kHz) 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 10 MHz). The advantage of the HIP4086 is that the built-in charge pumps allow indefinitely long on times for the high-side drivers. To ensure 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 6.6 V to 8.5 V. Applications include: brushless motors (BLDC), 3-phase AC motors, switched reluctance motor drives, battery powered vehicles, and battery powered tools.
