A3968SLBTR-T(2008) データシートの表示（PDF） - Allegro MicroSystems
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A3968SLBTR-T Datasheet PDF : 8 Pages
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A3968
Dual Full-Bridge PWM Motor Driver with Brake
Description (continued)
of a bridge, the braking function is enabled. In brake mode, both
source drivers are turned off and both sink drivers are turned on,
thereby dynamically braking the motor. When a logic high is applied
to both INPUTs of a bridge, all output drivers are disabled.
Special power-up sequencing is not required. Internal circuit
protection includes thermal shutdown with hysteresis, ground-clamp
and flyback diodes, and crossover-current protection.
The A3968 is supplied in a 16-lead plastic SOIC with two pins
internally fused to the die pad for enhanced thermal dissipation. These
pins are at ground potential and need no electrical isolation. The
device is lead (Pb) free, with 100% matte tin leadframe plating.
Selection Guide
Part Number
A3968SLBTR–T
Packing
1000 pieces / reel
Ambient Temperature Range
(°C)
–20 to 85
Absolute Maximum Ratings
Characteristic
Load Supply Voltage
Logic Supply Voltage
Input Voltage
Sense Voltage
Output Current*
Package Power Dissipation
Operating Ambient Temperature
Maximum Junction Temperature
Storage Temperature
Symbol
VBB
VCC
VIN
VS
IOUT
PD
TA
TJ(max)
Tstg
Notes
Rating
30
7.0
–0.3 to VCC + 0.3
1.0
Units
V
V
V
V
Peak
Output current rating may be limited by duty
±750
mA
cycle, ambient temperature, and heat sinking.
Under any set of conditions, do not exceed the
Continuous specified current rating or TJ(max)
±650
mA
TA = 25°C; per SEMI G42-88 Specification, Thermal Test
Board Standardization for Measuring Junction-to-Ambient
Thermal Resistance of Semiconductor Packages.
Range E
Range S
1.8
W
–40 to 85
ºC
–20 to 85
ºC
150
ºC
–55 to 150
ºC
Allegro MicroSystems, Inc.
2
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
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