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L6219DS原装现货，技术参数（含PDF）
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PDFL6219DS.pdf
【产品型号】L6219DS L6219DSTR L6219DS
【生产厂家】ALLEGRO
【产品规格】24-lead SOIC
【技术参数】L6219DS 技术参数下载。
【产品说明】全新原装现货，步進馬達驅動IC
DUAL FULL-BRIDGE
PWM MOTOR DRIVER
The L6219DS motor driver is designed to drive both windings of a
bipolar stepper motor or bidirectionally control two dc motors. Both
bridges are capable of sustaining 45 V and include internal pulse-width
modulation (PWM) control of the output current to 750 mA. The
outputs have been optimized for a low output saturation voltage drop
(less than 1.8 V total source plus sink at 500 mA).
For PWM current control, the maximum output current is determined
by the user’s selection of a reference voltage and sensing
resistor. Two logic-level inputs select output current limits of 0, 33,
67, or 100% of the maximum level. A PHASE input to each bridge
determines load current direction.
The bridges include both ground clamp and flyback diodes for
protection against inductive transients. Internally generated delays
prevent cross-over currents when switching current direction. Special
power-up sequencing is not required. Thermal protection circuitry
disables the outputs if the chip temperature exceeds safe operating
limits.
The L6219DS is supplied in a 24-lead surface-mountable SOIC. Its
batwing construction provides for maximum package power dissipation
in the smallest possible construction. This device is also available on
special order for operation from -40°C to +85°C or to +105°C.
FEATURES
_ Interchangeable with SGS L6219DS
_ 750 mA Continuous Output Current
_ 45 V Output Sustaining Voltage
_ Internal Clamp Diodes
_ Internal PWM Current Control
_ Low Output Saturation Voltage
_ Internal Thermal Shutdown Circuitry
_ Similar to Dual PBL3717, UC3770
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