SX68000M Datasheet, PDF (1/15 Pages) Allegro MicroSystems – High Voltage 3-Phase Motor Drivers

SX68000M Series
High Voltage 3-Phase Motor Drivers
Features and Benefits
▪ Built-in bootstrap diodes with limit resistors
▪ Built-in protection circuit for controlling power supply
voltage drop (UVLO)
▪ Built-in Thermal Shutdown (TSD)
▪ Built-in Current Limiter (OCL)
▪ 7.5 V regulated output
Package: 27-pin SOP
Description
The SX68000M series provides the solution for controlling
3-phase full bridges that utilize MOSFETs rated at 250 V/2 A,
500 V/1.5 A, or 500 V/2.5 A.
The IC includes in a single package: protection functions such as
UVLO (protection circuit for controlling power supply voltage
drop), OCP (overcurrent protection), TSD (thermal shutdown),
and OCL (current limiting), and a pre-driver with ¯F¯O¯ (Fault
Output) terminal and bootstrap diodes with limit resistors.
The SX68000M series is packaged in a fully-molded SOP with
27 pins at 1.2 mm pitch. Body size: 22 × 14.1 × 2.1 mm.
Not to scale
28400.00
Applications
▪ Small motor control:
▫ Air conditioning fan
▫ White goods cooling fans
▫ Ventilation blowers
Functional Block Diagram
VB1 VB2 VB31 VB32
VCC1
HIN1
HIN2
HIN3
COM1
SD
VCC2
REG
LIN1
LIN2
LIN3
COM2
FO
OCL
UVLO
Input
Logic
UVLO UVLO UVLO
High-Side
Level Shift Driver
REG
UVLO
Input Logic
(OCP reset)
Low-Side
Driver
Thermal
Shutdown ^OCP
OCPand OCL
VBB1
VBB2
W1
W2
V
V1
V2
U
LS