©2011 Fairchild Semiconductor Corporation

1

www.fairchildsemi.com

FSB50550AB Rev. A

Motion-SPM

January 2012

TM

FSB50550AB

Features

high voltage integrated circuit (HVIC)

• 3 divided negative dc-link terminals for inverter current sens-

ing applications

• HVIC for gate driving and undervoltage protection

• 3/5V CMOS/TTL compatible, active-high interface

• Optimized for low electromagnetic interference

• Isolation voltage rating of 1500Vrms for 1min.

• HVIC temperature sensing

• Embedded bootstrap diode in the package

• RoHS compliant

Applications

• Three-phase inverter driver for small power ac motor drives

General Description

FRFET technology as a compact inverter solution for small

power motor drive applications such as fan motors and water

suppliers. It is composed of 6 fast-recovery MOSFET (FRFET),

and 3 half-bridge HVICs for FRFET gate driving. FSB50550AB

provides low electromagnetic interference (EMI) characteristics

with optimized switching speed. Moreover, since it employs

FRFET as a power switch, it has much better ruggedness and

larger safe operation area (SOA) than that of an IGBT-based

power module or one-chip solution. The package is optimized

for the thermal performance and compactness for the use in the

built-in motor application and any other application where the

assembly space is concerned. FSB50550AB is the best

solution for the compact inverter providing the energy efficiency,

compactness, and low electromagnetic interference.