Company Name: Excellent Integrated System LIMITED

Contact Person : John

Email/Msn     :John(at)eis-ic.com

Tel: 00852-30777742

Add.: RM 906, WORKINGBERG COMM BLDG, 41-47 MARBLE RD, HONGKONG

Excellent Integrated System LIMITED (EIS LIMITED), Established in 1991, is a professional independent stocking distributor of electronic components and specialize in buying the EXCESS STOCK from the original equipment manufacturers (OEMs), Contract equipment manufacturers (CEMs), and many other factories. EIS has gained good experiences in Excess Inventory Management through its development over 20 years and has become the reliable partner for the domestic and foreign OEM manufacturers. If any inquiry and question,please email us: john(at)eis-ic.com.

Description as follow:

The A3957SLB is a full-bridge pwm microstepping motor driver. It is designed for driving one winding of a bipolar stepper motor in a microstepping mode. The outputs are rated for continuous output currents to ±1.5 A and operating voltages to 50 V.

Parametrics

Absolute maximum ratings: (1)Load Supply Voltage, VBB: 50 V; (2)Output Current, IOUT (Continuous): ±1.5 A*; (3)Logic Supply Voltage, VCC: 7.0 V; (4)Logic/Reference Input Voltage Range, VIN: -0.3 V to VCC + 0.3 V; (5)Sense Voltage, VS: 1.0 V; (6)Package Power Dissipation (TA = 25℃), PD: 2.23 W; (7)Operating Temperature Range, TA: -20℃ to +85℃; (8)Junction Temperature, TJ: +150℃; (9)Storage Temperature Range, TS: -55℃ to +150℃.

Features

Features: (1)±1.5 A Continuous Output Current; (2)50 V Output Voltage Rating; (3)Internal PWM Current Control; (4)4-Bit Non-Linear DAC for 16-Bit Microstepping; (5)Satlington. Sink Drivers; (6)Fast, Mixed Fast/Slow, and Slow Current-Decay Modes; (7)Internal Transient-Suppression Diodes; (8)Internal Thermal-Shutdown Circuitry; (9)Crossover-Current and UVLO Protection.

Diagrams