SCM1103M

Features and Benefits

▪ Each half-bridge circuit consists of a pre-driver circuit that

is completely independent from the others

▪ Protection against simultaneous high- and low-side turning on

▪ Bootstrap diodes with series resistors for suppressing

inrush current are incorporated

▪ CMOS compatible input (3.3 to 5 V)

▪ Designed to minimize simultaneous current through both

high- and low-side IGBTs by optimizing gate drive resistors

▪ Integrated Fast Recovery Diode (FRD) as freewheeling

diode for each IGBT

▪ UVLO protection with auto restart

▪ Overcurrent protection with off-time period adjustable by

an external capacitor

▪ Fault (FO indicator) signal output at protection activation:

UVLO (low side only), OCP, and STP

▪ Proprietary power DIP package

▪ UL Recognized Component (File No.: E118037)

High Voltage 3-Phase Motor Driver

Functional Block Diagram

Package: Power DIP

Not to scale

CFO

Drive

Circuit

UV

Detect

Drive

Circuit

Level

Shift

Input

Logic

&

Shoot

Through

Prevention

UV

Detect

O.C .

Protect

HVIC

HO

LO

FO

COM

LIN

HIN

VCC

VB

HS

VBB

U, V, or W

LS

Figure 1. Diagram of one of three phases in the device.

Description

The SCM1103M inverter power module (IPM) device provides

a robust, highly-integrated solution for optimally controlling

3-phase motor power inverter systems and variable speed

control systems used in energy-conserving designs to drive

motors of residential and commercial appliances. These ICs

take 85 to 253 VAC input voltage, and 5 A (continuous) output

current. They can withstand voltages of up to 600 V (IGBT

breakdown voltage).

The SCM1100M series employs a new, small-footprint

proprietary DIP package. The IC itself consists of all of the

necessary power elements (six IGBTs), pre-drive ICs (three),

and freewheeling diodes (six), needed to configure the main

circuit of an inverter, as well as a bootstrap circuit (three

bootstrap diodes and three boot resistors) as a high-side drive

power supply. This enables the main circuit of the inverter to

be configured with fewer external components than traditional

designs.

Applications include residential white goods (home appliances)

and commercial appliance motor control, such as:

▪ Air conditioner fan motor

▪ Refrigerator compressor motor

▪ Washing machine main motor

▪ Air conditioner compressor motor

38110.050, Rev. 6