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Related Links:

Datasheets:
L6219DS: Dual Full-Bridge PWM Motor Driver (PDF)

Selection Guides:
Power Integrated Circuits,

Power Motor Drivers,

Power Motor Drivers - Full-Bridge

when this product is updated

L6219
Dual Full-Bridge PWM Motor Driver

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

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.

Typical Application

Functional Block Diagram

Complete Part Numbers

Part Number	Package Type	RoHS Compliant	Part Composition/ RoHS Data	Temperature	Comments	Samples	Distributor Stock
L6219DS-T	24-lead SOIC	--	--	-20 °C to  85 °C		Contact Local Sales Representative
L6219DSTR-T	24-lead SOIC	--	--	-20 °C to  85 °C		Contact Local Sales Representative

Allegro's products are not to be used in life support devices or systems, if a failure of an Allegro product can reasonably be expected to cause the failure of that life support device or system, or to affect the safety or effectiveness of that device or system.