SMA6820MP Datasheet, PDF (1/13 Pages) Allegro MicroSystems – High Voltage 3-Phase Motor Drivers

SMA6820MP Series
High Voltage 3-Phase Motor Drivers
Features and Benefits
▪ Built-in pre-drive IC and 3 bootstrap diodes as a high-side
drive power supply
▪ CMOS compatible input (3.3 to 5 V)
▪ High-side gate driver using bootstrap circuit or floating
power supply
▪ One pin for 7.5 V regulator output
▪ Built-in protection circuit for controlling power supply
voltage drop
▪ Built-in overheat detection circuit (TD)
▪ Output of fault signal during operation of protection circuit
▪ Output current 1.5, 2, or 2.5 A
▪ Small SIP (SMA 24-pin)
Packages: Power SIP
Not to scale
Leadform 2451
Leadform 2452
Description
The SMA6820MP inverter power module (IPM) series 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 230 VAC input voltage, and up to 2.5 A (continuous)
output current. They can withstand voltages of up to 500 V
(MOSFET breakdown voltage).
The SMA6820MP power package includes an IC with all of
the necessary power elements (six MOSFETs) and pre-driver
ICs (two) needed to configure the main circuit of an inverter.
This enables the main circuit of the inverter to be configured
with fewer external components than traditional designs.
Applications include residential white goods (home
applications) and commercial appliance motor control:
• Air conditioner fan
• Small ventilation fan
• Dishwasher pump
Functional Block Diagram
VB 1
VB 2
VB 3
VD
VCC1
HIN1
HIN2
HIN3
COM1
UVLO
Input
Logic
UVLO UVLO UVLO
High Side
Level Shift Driver
VCC2
VREG
LIN1
LIN2
LIN3
COM2
FO
7.5V
Reg.
UVLO
Input
Logic
Thermal
Detect
Low Side
Driver
VBB 1
VBB 2
U
V
W1
W2
LS2
LS1
Figure 1. Driver block diagrams.
SMA6820MP-DS Rev 5