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L6219 Datasheet(PDF) 1 Page - Unisonic Technologies

Part No. L6219
Description  DUAL FULL-BRIDGE PWM MOTOR DRIVER
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Maker  UTC [Unisonic Technologies]
Homepage  http://www.utc-ic.com
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L6219 Datasheet(HTML) 1 Page - Unisonic Technologies

   
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UNISONIC TECHNOLOGIES CO., LTD
L6219
LINEAR INTEGRATED CIRCUIT
www.unisonic.com.tw
1 of 6
Copyright © 2005 Unisonic Technologies Co., Ltd
QW-R109-005,B
DUAL FULL-BRIDGE PWM
MOTOR DRIVER
DESCRIPTION
The L6219 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 45V and include internal
pulse-width modulation (PWM) control of the output current to
750mA .The outputs have been optimized for a low output saturation
voltage drop (less than 1.8V total source plus sink at 500mA ).
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.
FEATURES
*Interchangeable with SGS L6219
*750mA Continuous Output Current
*45V Output Sustaining Voltage
*Internal Clamp Diodes
*Internal PWM Current Control
*low Output Saturation Voltage
*Internal Thermal Shutdown Circuitry
SOP-24
*Pb-free plating product number: L6219L
ORDERING INFORMATION
Order Number
Normal
Lead Free Plating
Package
Packing
L6219-S24-R
L6219L-S24-R
SOP-24
Tape Reel
L6219-S24-T
L6219L-S24-T
SOP-24
Tube
L6219L -S24- R
(1)Packing Type
(2)Package Type
(3)Lead Plating
(1) R: Tape Reel, T: Tube
(2) S24: SOP-24
(3) L: Lead Free Plating, Blank: Pb/Sn


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