AT5519

Features:

• Interchangeable with SGS L6219DS
• 750mA continuous output current
• 28V output sustaining voltage
• Internal clamp diode
• Internal PWM current control
• Low output saturation voltage
• Internal thermal shutdown circuitry
• SOP-24 Package



Application

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Pinout




Specifications

Parameter	Symbol	Limits	Unit
Storage temperature	TSTG	-55〜+150
Operating temperature	TA	-20〜+85
Motor Supply Voltage	VBB	30	V
Output Peak Current	IOUT	1.0	A
Output Continuous Current	IOUT	750	mA
Logic Supply Voltage	VCC	7	V
Logic Input Range	VIN	-0.3~+7.0	V
Output Emitter Voltage	VSENSE	1.5                        V
Power consumption	PD	55                      °C/W

Description

The AT5519 motor driver is designed to drive both winding of a bipolar stepper motor or bidirectionally control two DC motor. An internal PWM controls the output current to 750mA with peak startup current up to 1A. Two logic-level inputs select output current limits of 0, 33, 67, or 100% of the maximum level. A PHASE input to each bridge deter-mines load current direction.A thermal protection circuitry disables the outputs if the chip temperature exceeds safe operating limits.