Features: · Complete Motor Driver and Encoder· Continuous Drive Capability 350mA per Phase· Contains all Required Logic for Full and Half Stepping· Bilevel Operation for Fast Step Rates· Operates as a Voltage Doubler· Useable as a Phase Generator and/or as a Driver· Power-On Reset Guarantees Safe,...
UC3517: Features: · Complete Motor Driver and Encoder· Continuous Drive Capability 350mA per Phase· Contains all Required Logic for Full and Half Stepping· Bilevel Operation for Fast Step Rates· Operates as...
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The UC3517 contains four NPN drivers that operate in two-phase fashion for full-step and half-step motor control. The UC3517 also contains two emitter followers, two monostables, phase decoder logic, power-on reset, and low-voltage protection, making it a versatile system for driving small stepper motors or for controlling large power devices.
The emitter followers and monostables in the UC3517 are configured to apply higher-voltage pulses to the motor at each step command. This drive technique, called "Bilevel," allows faster stepping than common resistive current limiting, yet generates less electrical noise than chopping techniques.