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L6219 Datasheet Preview

L6219 Datasheet

DUAL FULL-BRIDGE PWM MOTOR DRIVER

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L6219 pdf
UNISONIC TECHNOLOGIES CO., LTD
L6219
LINEAR INTEGRATED CIRCUIT
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
www.DataSheet4U.com
SOP-24
*Pb-free plating product number: L6219L
ORDERING INFORMATION
Order Number
Normal
Lead Free Plating
L6219-S24-R
L6219L-S24-R
L6219-S24-T
L6219L-S24-T
Package
SOP-24
SOP-24
Packing
Tape Reel
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
www.unisonic.com.tw
Copyright © 2005 Unisonic Technologies Co., Ltd
1 of 6
QW-R109-005,B



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L6219 Datasheet Preview

L6219 Datasheet

DUAL FULL-BRIDGE PWM MOTOR DRIVER

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L6219 pdf
L6219
PIN CONFIGURATION
LINEAR INTEGRATED CIRCUIT
OUT1A
OUT2A
SENSE2
COMP IN2
OUT2B
1
2
3
4
5
GROUND
GROUND
6
7
2
I02 8
I12 9
PHASE2
VREF2
RC2
10
11
12
2
VBB
24
LOAD
SUPPLY
23 SENSE1
1 22 COMP IN1
21 OUT1B
20 I01
19 GROUND
18 GROUND
17 I11
1 16 PHASE1
15 VREF1
14 RC1
Vcc 13 LOGIC
SUPPLY
PWM CURRENT-CONTROL CIRCUITRY
CHANNEL 1
TERMINAL NUMBERS
SHOWN
VBB
24
OUTB
1 21
OUTA
I0
20
I1
17
VREF 15
20k
40k
23 SENSE
÷ 10
10k
COMP IN
22
RC
-
+
RS CC
ONE
SHOT
14 RC
SOURCE
DISABLE
RT CT
TRUTH TABLE
PHASE
H
L
OUTA
H
L
OUTB
L
H
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 6
QW-R109-005,B


Part Number L6219
Description DUAL FULL-BRIDGE PWM MOTOR DRIVER
Maker UTC
Total Page 6 Pages
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