UC3717 General Description
UC3717 Maximum Ratings
Voltage
Logic Supply, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .V
Output Supply, VM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45V
Input Voltage
Logic Inputs (Pins 7, 8, 9). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6V
Analog Input (Pin 10) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. Vcc
Reference Input (Pin 11) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 15V
Input Current
Logic Inputs (Pins 7, 8, 9) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -10mA
Analog Inputs (Pins 10, 11). . . . . . . . . . . . . . . . . . . . . . . . . . . . -10mA
Output Current (Pins 1, 15) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±1A
Junction Temperature, TJ. . . . . . . . . . . . . . . . . . . . . . . . . . . . +150°C
Storage Temperature Range, TS . . . . . . . . . . . . . . . -55°C to +150°C
Note 1: All voltages are with respect to ground, Pins ,5, 12, 13. Pin numbers refer to DIL-16 package. Currents re positive into, negative out of the specified terminal.
Note 2: Consult Packaging Section of Databook for information n thermal limitations and considerations of ackage.
UC3717 Features
· Half-step and Full-step Capability
· Bipolar Constant Current Motor Drive
· Built-in Fast Recovery Schottky ommutating Diodes
· Wide Range of Current Control 5-1000mA
· Wide Voltage Range 10-45V
· Designed for Unregulated Motor Supply oltage
· Current Levels can be Selected in Steps r Varied Continuously
· Thermal Overload Protection
UC3717 Connection Diagram
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