Overview
Description
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. 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. 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 3-phase bridge configuration
- Bootstrap supply maximum 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
Comparison
Applications
Design & Development
Software & Tools
Boards & Kits
3-Phase MOSFET Driver for BLDC Motors Demonstration Board
The HIP4086DEMO1Z is a general purpose 3-phase BLDC motor drive with a microprocessor based controller. It demonstrates the HIP4086 80V, 500mA, 3-phase MOSFET driver IC.
Hall effect shaft position sensors are used to control the switching sequence of the three 1/2 bridge outputs. The bridge...
Motor Control Evaluation System for RA Family - RA6T1 Group
The Motor Control Evaluation System for RA Family - RA6T1 Group is a low-voltage permanent magnet synchronous motor (brushless DC motor) solution that allows anyone to easily evaluate motor control. Start evaluating motor control immediately using the kit hardware and software available for...
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.

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