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L6219R013TR 数据表(PDF) 1 Page - STMicroelectronics |
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L6219R013TR 数据表(HTML) 1 Page - STMicroelectronics |
1 / 16 page June 2006 Rev 3 1/16 1 L6219R Stepper motor driver Features ■ Able to drive both windings of bipolar stepper motor ■ Output current up to 500mA each winding ■ Wide voltage range 4.5V to 10V ■ HAlf-step, full-step and microstepp-ing mode ■ Built-in protection diodes ■ Internal pwm current control ■ Low output saturation voltage ■ Designed for unstabilized motor supply voltage ■ Internal thermal shutdown Description The L6219R 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 L6219R with a few external components form a complete control and drive circuit for LS-TTL or microprocessor controlled stepper motor system.The power stage is a dual full bridge capable of sustaining 10V and including four diodes for current recirculation. 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 500mA with peak start-up current up to 1A. Wide range of current control from 500mA (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. Order codes SO-24 (20+2+2) Part number Package Packing L6219R SO-24 Tube L6219R013TR SO-24 Tape & reel E-L6219R(1) 1. Lead free package (ECOPACK®) see Chapter 5. SO-24 Tube E-L6219R013TR (1) SO-24 Tape & reel www.st.com |
类似零件编号 - L6219R013TR |
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类似说明 - L6219R013TR |
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