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A3906 Datasheet(PDF) 2 Page - Allegro MicroSystems |
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A3906 Datasheet(HTML) 2 Page - Allegro MicroSystems |
2 / 10 page Low Voltage Stepper and Single/Dual DC Motor Driver A3906 2 Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com Absolute Maximum Ratings Characteristic Symbol Notes Rating Units Load Supply Voltage VBB 9.6 V Logic Input Voltage Range VIN –0.3 to 7 V Sense Voltage VSENSEx Continuous 0.5 V Pulsed, tw < 1 μs1 V Output Current IOUT 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. Continuous 1 A Peak, DC < 30% 1.5 A Output Current in Paralleled Operation IOUT(par) Continuous 2 A Peak, DC < 30% 2.5 A Operating Temperature Range TA Range S –20 to 85 °C Junction Temperature TJ(max) 150 °C Storage Temperature Range Tstg –40 to 150 °C Selection Guide Part Number Packing Package A3906SES-T 92 pieces per tube 20-pin QFN with exposed thermal pad A3906SESTR-T 1500 pieces per 7-in. reel Thermal Characteristics may require derating at maximum conditions, see application information Characteristic Symbol Test Conditions* Value Units Package Thermal Resistance RθJA 4-layer PCB based on JEDEC standard 37 ºC/W *Additional thermal information available on the Allegro website. Terminal List Table Number Name Function 1 CP2 Charge pump capacitor terminal 2 2 GND Ground 3 SLEEP Sleep logic input, active low 4 IN1 Control input 5 IN2 Control input 6 IN3 Control input 7 IN4 Control input 8 FL1 Current limit flag, bridge 1 9 FL2 Current limit flag bridge 2 10 OUT2A DMOS full-bridge 2, output A 11 SENSE2 Current sense resistor terminal, bridge 2 12 OUT2B DMOS full-bridge 2, output B 13 VBB Supply Voltage 14 OUT1B DMOS full-bridge 1, output B 15 SENSE1 Current sense resistor terminal, bridge 1 16 OUT1A DMOS full-bridge 1, output A 17 VCP Reservoir capacitor terminal 18 CP3 Charge pump capacitor terminal 3 19 CP1 Charge pump capacitor terminal 1 20 CP4 Charge pump capacitor terminal 4 – PAD Exposed pad for enhanced thermal performance PAD 15 14 13 12 11 1 2 3 4 5 SENSE1 OUT1B VBB OUT2B SENSE2 CP2 GND SLEEP IN1 IN2 Pin-out Diagram |
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