STMicroelectronics UDN2916A
The UDN2916A is a bipolar monolithic integrated circuits intended to control and drive both winding of a bipolar stepper motor or bidirectionally control two DC motors. The UDN2916A with a few external components form a complete control and drive circuit for LSTTL or microprocessor controlled stepper motor system. The power stage is a dual full bridge capable of sustaining 50V and including four diodes for current recirculation.| Part No. | UDN2916A |
|---|---|
| Datasheet | UDN2916A Download |
| Manufacturer |  STMicroelectronics |
| Description | STEPPER MOTOR DRIVER |
| Buy | Stock & Price |
DESCRIPTION
BLOCK DIAGRAM Powerdip 20+2+2 ORDERING NUMBER: UDN2916A A cross conduction protection is provided to avoid simultaneous cross conduction during switching current direction. An internal pulse-width-modulation (PWM) controls the output current to 750mA with peak startup current up to 1A. Wide range of current control from 750mA (each bridge) is permitted by means of two logic inputs and an external voltage reference. A phase input to each bridge determines the load current direction. A thermal protection circuitry disables the outputs if the chip temperature exceeds safe operating limits. November 1991 ThAdvanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice. 1/8 UDN2916A PIN CONNECTION (Top view) PIN FUNCTIONS N° 1;2 3;23 4;22 Name OUTPUT A SENSE RESISTOR COMPARATOR INPUT See pins 5;21 Connection to Lower Emitters of Output Stage for Insertion of Current Sense Resistor Input connected to the comparators.
