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A3966SA Datasheet PDF

Allegro MicroSystems A3966SA

The A3966SA and A3966SLB are designed to drive both windings of a two-phase bipolar stepper motor. Each device includes two H-bridges capable of continuous output currents of ±650 mA and operating voltages to 30 V. The peak load current limit is set by the user’s selection of a reference voltage and current-sensing resistors.
Part No. A3966SA
Datasheet A3966SA Download
Manufacturer
Allegro MicroSystems
Description DUAL FULL-BRIDGE PWM MOTOR DRIVER
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A3966SA datasheet page 1 preview

ABSOLUTE MAXIMUM RATINGS

Load Supply Voltage, VBB ...................... 30 V Output Current, IOUT (peak) ........... ±750 mA (continuous) .............................. ±650 mA Logic Supply Voltage, VCC .................... 7.0 V Input Voltage, Vin ........ -0.3 V to VCC + 0.3 V Sense Voltage, VS ................................ 1.0 V Package Power Dissipation (TA = 25°C), PD A3966SA ..................................... 2.08 W* A3966SLB ................................... 1.87 W* Operating Temperature Range, TA ..................................... -20°C to +85°C Junction Temperature, TJ .................................................. +150°C Storage Temperature Range, TS ................................... -55°C to +150°C 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. * Per SEMI G42-88 Specification, Thermal Test Board Standardization for Measuring Junction-to-Ambient Thermal Resistance of Semiconductor Packages.
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