Allegro MicroSystems A3980
The A3980 is a complete microstepping motor driver with built-in translator for easy operation. It is designed to operate bipolar stepper motors in full-, half-, eighth-, and sixteenth-step modes, at up to 35 V and ±1 A. The A3980 includes a fixed off-time current regulator which has the ability to operate in slow, fast, or mixed decay modes.
| Part No. |
A3980 |
| Datasheet |
A3980
Download
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| Manufacturer |
 Allegro MicroSystems |
| Description |
Automotive DMOS Microstepping Driver |
| Buy |
Stock & Price
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ABSOLUTE MAXIMUM RATINGS
Load Supply Voltage, 500 ms,VBB .....................50 V Logic Supply Voltage, VDD................................7.0 V Logic Input Voltage VIN ................................. –0.3 V to VDD + 0.3 V (tW < 30 ns) ....................... –1.0 V to VDD + 1 V Sense Voltage, VSENSE .......................................0.5 V Reference Voltage, VREF ………............. 0 V to VDD Package Power Dissipation (TA = +25ºC), PD "High-K" PCB1 ..............................RθJA28ºC/W Typical PCB2..................................RθJA38ºC/W Operating Temperature Range Junction Temperature, TJ ........... –40°C to +150°C Storage Temperature, TS .......... –55°C to +150°C 1Measured on a JEDEC-standard "High-K" 4-layer PCB. 2Measured on a typical two-sided PCB with 3 in.2 copper FEATURES
Typical application up to ±1 A, 35 V output rating Low RDS(ON) outputs, 0.67 Ω source, 0.54 Ω sink typical Automatic current decay mode detection/selection 3.0 V to 5.5 V logic supply voltage ra...
