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Description

The FAN7171-F085 is a monolithic high−side gate drive IC that can

drive high−speed MOSFETs and IGBTs that operate up to +600 V. It

has a buffered output stage with all NMOS transistors designed for

high pulse current driving capability and minimum cross−conduction.

onsemi’s high−voltage process and common−mode noise-canceling

techniques provide stable operation of the high−side driver under

high-dv/dt noise circumstances. An advanced level−shift circuit offers

high−side gate driver operation up to VS = −9.8 V (typical) for VBS =

15 V.

The UVLO circuit prevents malfunction when VBS is lower than the

specified threshold voltage.

The high−current and low−output voltage-drop feature make this

device suitable for sustaining switch drivers and energy−recovery

switch drivers in automotive motor drive inverters, switching power

supplies, and high−power DC−DC converter applications.

Features

• Floating Channel for Bootstrap Operation to +600 V

• 4 A Sourcing and 4 A Sinking Current Driving Capability

• Common−Mode dv/dt Noise−Cancelling Circuit

• 3.3 V and 5 V Input Logic Compatible

• Output In−phase with Input Signal

• Under− Voltage Lockout for VBS

• 25 V Shunt Regulator on VDD and VBS

• 8−SOIC Package, Case 751EB

(JEDEC MS−012, 0.150 inch Narrow Body)

• Automotive Qualified to AEC Q100 for Ambient Operating

Temperature from −40°C to 125°C

Applications

• Common Rail Injection Systems

• DC−DC Converter

• Motor Drive (Electric Power Steering, Fans)

Related Product Resources

• FAN7171−F085 Product Folder

• AN−6076 Design and Application Guide of Bootstrap Circuit for

High−Voltage Gate−Drive IC

• AN−8102 200 Recommendations to Avoid Short Pulse Width Issues

in HVIC Gate Driver Applications

• AN−9052 Design Guide for Selection of Bootstrap Components

• AN−4171 FAN7085 High−Side Gate Driver− Internal Recharge Path

Design Considerations