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A3908EEETR-T Datasheet(PDF) 1 Page - Allegro MicroSystems |
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A3908EEETR-T Datasheet(HTML) 1 Page - Allegro MicroSystems |
1 / 8 page Approximate Scale 1:1 A3908 Description The A3908 is a low voltage bidirectional DC motor driver with a typical input voltage range of 3 to 5.5 V and output currents up to 500 mA. The unique output full-bridge incorporates source- side linear operation to allow a constant voltage across the motor coil. This regulated output minimizes motor voltage change due to I × RDS(on) variation and battery voltage tolerance. Logic input pins are provided to control the motor direction of rotation,brake,andstandby(<500nAsupplycurrent)modesand to allow optional PWM of the sink drivers. Internal protection circuitry includes thermal shutdown, undervoltage lockout, and crossover current (shoot-through) protection. The A3908 is supplied in a 2 mm x 2 mm, 0.55 mm nominal height, 8-lead DFN package, with exposed thermal pad (package suffix EE). This small footprint package is lead (Pb) free, with 100% matte tin leadframe plating. Applications include: ▪ Robotic actuators and pumps ▪ Portable printers/scanners ▪ Camera lens/shutter control ▪ Battery powered toys and games ▪ Low noise test instrumentation systems 3908-DS Features and Benefits ▪ Constant voltage operation (adjustable) ▪ 500 mA output peak rating ▪ Low power standby mode ▪ Small 2 mm × 2 mm, 0.55 mm nominal height DFN package ▪ Typical input voltage range of 3 to 5.5 V ▪ Adjustable constant voltage or PWM operation ▪ Less than 500 nA standby mode current ▪ –40 to 85 operating temperature range Package: 8 Contact DFN (suffix EE) Typical Application Low Voltage DC Motor Driver CPU R1 18 kΩ R2 10 kΩ M OUTA VSET VREF A3908 +VBAT OUTB IN2 IN1 VDD GND |
Similar Part No. - A3908EEETR-T |
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Similar Description - A3908EEETR-T |
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