L6219L-S24-T Unisonic Technologies, L6219L-S24-T Datasheet

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L6219L-S24-T

Manufacturer Part Number
L6219L-S24-T
Description
Stepper Motor Driver
Manufacturer
Unisonic Technologies
Datasheet
L6219
DUAL FULL-BRIDGE PWM
MOTOR DRIVER
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 ).
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.
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.
*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.unisonic.com.tw
Copyright © 2005 Unisonic Technologies Co., Ltd
The L6219 motor driver is designed to drive both windings of a
For PWM current control, the maximum output current is
The bridges include both ground clamp and flyback diodes for
ORDERING INFORMATION
L 6 2 1 9 L - S 2 4 - R
L6219-S24-R
L6219-S24-T
DESCRIPTION
FEATURES
Normal
UNISONIC TECHNOLOGIES CO., LTD
Order Number
Lead Free Plating
L6219L-S24-R
L6219L-S24-T
(1)Packing Type
(2)Package Type
(3)Lead Plating
Package
SOP-24
SOP-24
(1) R: Tape Reel, T: Tube
(2) S24: SOP-24
(3) L: Lead Free Plating, Blank: Pb/Sn
Tape Reel
Packing
Tube
LINEAR INTEGRATED CIRCUIT
*Pb-free plating product number: L6219L
SOP-24
QW-R109-005,B
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L6219L-S24-T Summary of contents

Page 1

... Thermal Shutdown Circuitry ORDERING INFORMATION Order Number Normal Lead Free Plating L6219-S24-R L6219L-S24-R L6219-S24-T L6219L-S24 (1)Packing Type (2)Package Type (3)Lead Plating www.unisonic.com.tw Copyright © 2005 Unisonic Technologies Co., Ltd LINEAR INTEGRATED CIRCUIT *Pb-free plating product number: L6219L ...

Page 2

... I 12 PHASE 2 V REF2 R C2 PWM CURRENT-CONTROL CIRCUITRY CHANNEL 1 TERMINAL NUMBERS SHOWN V REF 40kΩ TRUTH TABLE PHASE OUTA UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com. θ 10 θ Vcc OUTB 1 ...

Page 3

... L6219 TYPICAL APPLICATION FROM μP V REF UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com. θ θ Vcc 13 T LINEAR INTEGRATED CIRCUIT STEPPER MOTOR FROM μP ...

Page 4

... Clamp Diode Leakage Current Clamp Diode Forward Voltage Driver Supply Current Control Logic Input Voltage Input Current Reference Voltage Range Current Limit Threshold V (at trip point) Total Logic Supply Current Thermal Shutdown Temperature UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw ( ℃ SYMBOL V BB Peak I OUT Continuous V ...

Page 5

... PWM OUTPUT CURRENT WAVE FORM V PHASE + I OUT TRIP OFF UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw LINEAR INTEGRATED CIRCUIT ) reaches the level set at the comparator’s input :I timing components, where t C LOAD CURRENT PATHS R =V /10Rs TRIP REF =R C within the range of ...

Page 6

... Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The inform ation presented in this docum ent does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2.5 2.0 R θ ...

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