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A6219DS

Part Number	A6219DS
Manufacturer	Allegro MicroSystems
Description	Dual Full-Bridge PWM Motor Driver
Published	Mar 19, 2010
Detailed Description	A6219DS www.DataSheet4U.com Dual Full-Bridge PWM Motor Driver Features and Benefits ▪ Interchangeable with SGS L6219DS ...
Datasheet	A6219DS PDF File

Overview

A6219DS www.
DataSheet4U.
com Dual Full-Bridge PWM Motor Driver Features and Benefits ▪ 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 Description 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 user 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 crossover 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-pin surface-mountable SOIC, with 4 internally-fused leads for maximum package power dissipation in the smallest possible construction.
It is lead (Pb) free with 100% matte tin leadframe plating.
Package: 24 pin SOICW (suffix LB) Not to scale Typical Application STEPPER MOTOR 1 2 RS RC C C VBB V 24 23 RS RC 22 21 20 19 18 17 FROM μP CC + BB 3 4 5 6 7 8 2 1 FROM μP 99 PWM 1 Q1 16 15 14 820 pF V 10 V REF Q2 PWM 2 REF 11 12 820 pF CT VCC 13 +5 V C 56 k7 RT T 56 k7 RT Dwg.
EP-008B1 29319.
43H L6219DS Selection Guide Part Number L6219DS-T L6219DSTR-T Dual Full-B...

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A6219DS Dual Full-Bridge PWM Motor Driver - Allegro MicroSystems

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