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Now over 1,500 items in our Store! High Performance Stepper Motor Drive Circuit Full-Step, Half-Step and Micro-Step Capability. Bipolar Output Current up to 2A. Wide Range of Motor Supply Voltage: 10–50V Wide Range of Current Control: 5mA–2A. Current Levels Selected in Steps or Varied Continuously. Thermal Protection and Soft Intervention. The UC3770A and UC3770B are high-performance full bridge drivers that offer higher current and lower saturation voltage than the UC3717 and the UC3770. Included in these devices are LS-TTL compatible logic inputs, current sense, monostable, thermal shutdown, and a power H-bridge output stage. Two UC3770As or UC3770Bs and a few external components form a complete microprocessor-controllable stepper motor power system. Unlike the UC3717, the UC3770A and the UC3770B require external high-side clamp diodes. The UC3770A and UC3770B are identical in all regards except for the current sense thresholds. Thresholds for the UC3770A are identical to those of the older UC3717 permitting drop-in replacement in applications where high-side diodes are not required. Thresholds for the UC3770B are tailored for half stepping applications where 50%, 71%, and 100% current levels are desirable. The UC3770A and UC3770B are specified for operation from 0 for other great component bargains on Microprocessors, Transistors, Capacitors, IC's, Transformers, Diodes, Crystals, and more! And we salute our friends in other countries around the world! (please look at our rules and privacy policy) |
Alvin.cunningham@modularparts.com (Alvin Cunningham) for more information. This email will be sent to Alvin Cunningham' actual email address.
