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DMOS Full-Bridge PWM Motor Driver with Selectable Current Decay Modes
A3959
The A3959 provides flexible PWM control of DC motors with output currents up to ±3A and operating voltages up to 50V. It features selectable current decay modes (slow, fast, mixed) and synchronous rectification for optimized performance and reduced power dissipation.
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Synchronous Rectification for Low Power Dissipation
Internal UVLO and Thermal-Shutdown Circuitry
Crossover-Current Protection
Internal Oscillator for Digital PWM Timing
The A3959SB/SLB/SLP is a choice of three power packages:
24-pin plastic DIP with a copper batwing tab (package suffix 'B'); Thin (<1.2 mm) 28-lead plastic TSSOP with an exposed thermal pad (suffix 'LP')
24-lead plastic SOIC with a copper batwing tab (package suffix 'LB')
In all cases, the power tab is at ground potential and needs no electrical isolation. Each package is available in a leadfree version (100% matte tin leadframe).