The HIP4081A is a high frequency, medium voltage Full Bridge N-Channel FET driver IC, available in 20 lead plastic SOIC and DIP packages. The HIP4081A can drive every possible switch combination except those which would cause a shoot-through condition. The HIP4081A can switch at frequencies up to 1MHz and is well suited to driving Voice Coil Motors, high-frequency switching power amplifiers, and power supplies. For example, the HIP4081A can drive medium voltage brush motors, and two HIP4081As can be used to drive high performance stepper motors, since the short minimum on-time can provide fine micro-stepping capability. Short propagation delays of approximately 55ns maximizes control loop crossover frequencies and dead-times which can be adjusted to near zero to minimize distortion, resulting in rapid, precise control of the driven load. A similar part, the HIP4080A, includes an on-chip input comparator to create a PWM signal from an external triangle wave and to facilitate hysteresis mode switching.


  • Independently Drives 4 N-Channel FET in Half Bridge or Full Bridge Configurations
  • Bootstrap Supply Max Voltage to 95VDC
  • Drives 1000pF Load at 1MHz in Free Air at 50°C with Rise and Fall Times of Typically 10ns
  • User-Programmable Dead Time
  • On-Chip Charge-Pump and Bootstrap Upper Bias Supplies
  • DIS (Disable) Overrides Input Control
  • Input Logic Thresholds Compatible with 5V to 15V Logic Levels
  • Very Low Power Consumption
  • Undervoltage Protection
  • Pb-free Available


  • Medium/Large Voice Coil Motors
  • Full Bridge Power Supplies
  • Switching Power Amplifiers
  • High Performance Motor Controls
  • Noise Cancellation Systems
  • Battery Powered Vehicles
  • Peripherals
  • UPS

Product Options

Part Number Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active SOICW Tube 380
Active SOICW Reel 1000
Active PDIP Tube 360

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
HIP4081A Datasheet Datasheet PDF 922 KB
Application Notes & White Papers
Five Easy Steps to Create a Multi-Load Power Solution White Paper PDF 846 KB
How Green is Your Cloud? White Paper PDF 295 KB
AN1681: Grounding Techniques Application Note PDF 509 KB
AN1684: Nonideality of Ground Application Note PDF 397 KB
AN1116: CMOS Applications Information Application Note PDF 576 KB
AN9405: HIP4081A, 80V High Frequency H-Bridge Driver (HIP4080A/81AEVALZ) Application Note PDF 605 KB
AN9506: A 50W, 500kHz, Full-Bridge, Phase-Shift, ZVS Isolated DC to DC Converter Using the HIP4081A Application Note PDF 1.49 MB
PCN12094 - Alternate Manufacturing Site for Assembly of the Listed Intersil Packaged Products - Amkor Technology, Philippines (ATP) Product Change Notice PDF 98 KB
PCN12086 - Alternate Manufacturing Site for Assembly of the Listed Intersil PDIP Packaged Products -Amkor Technology, Philippines (ATP) Product Change Notice PDF 86 KB
PLC17007 - Q1 Cy 17 General Product Life Cycle Notice Product Life Cycle Notice PDF 292 KB
TB458: Converting a Fixed PWM to an Adjustable PWM Other PDF 315 KB
TB406: Proper Termination of Inputs to the HIP408X Family of Driver ICs Other PDF 180 KB
TB321: HIP4080 and HIP4081 High Frequency H-Bridge Drivers Other PDF 240 KB

Boards & Kits

Part Number Title Type Company
HIP4080A/81AEVALZ 80V/2.5A Peak, High Frequency Full Bridge FET Driver Evaluation Board Evaluation Renesas