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SCM1105MF fiches techniques PDF

Allegro - High Voltage 3 Phase Motor Driver

Numéro de référence SCM1105MF
Description High Voltage 3 Phase Motor Driver
Fabricant Allegro 
Logo Allegro 





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SCM1105MF fiche technique
SCM1105MF
High Voltage 3 Phase Motor Driver
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
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
Package: Power DIP
Description
The SCM1105MF 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 10 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 DIPpackage with exposed thermal pad for enhanced
power dissipation capacity. The IC itself consists of all of the
necessary power elements (six IGBTs), pre-drive ICs (three),
and flyback 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
Not to scale. Thermal pad shown attached.
Functional Block Diagram
HS
VB
VCC
HIN
LIN
COM
FO
CFO
38110.060, Rev. 1
Input
Logic
&
Shoot
Through
Prevention
UV
Detect
Level
Shift
Drive
Circuit
UV
Detect
O .C .
Protect
Drive
Circuit
HVIC
HO
LO
Figure 1. Diagram of one of three phases in the device.
VBB
U, V, or W
LS

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