A3972
Dual DMOS Full-Bridge
Microstepping PWM Motor Driver
Selection Guide
Part Number
A3972SB-T
Packing
15 pieces/tube
Absolute Maximum Ratings
Characteristic
Symbol
Notes
Rating
Units
Load Supply Voltage
VBB
50
V
Output Current*
IOUT
±1.5
A
Logic Supply Voltage
VDD
7.0
V
Logic Input Voltage Range
VIN
–0.3 to VDD + 0.3
V
Reference Voltage
VREF
3
V
Sense Voltage (DC)
VS
500
mV
Package Power Dissipation
PD
3.1
W
Operating Ambient Temperature
TA
Range S
–20 to 85
ºC
Junction Temperature
TJ
150
ºC
Storage Temperature
Tstg
–55 to 150
ºC
*Output current rating may be limited by duty cycle, ambient temperature, and heat sinking. Under any set of conditions, do not exceed
the specified current rating or a junction temperature of 150°C.
Allegro MicroSystems, LLC
2
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com