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PDF TLE4726G Data sheet ( Hoja de datos )
| Número de pieza | TLE4726G | |
| Descripción | 2-Phase Stepper-Motor Driver | |
| Fabricantes | Infineon Technologies AG | |
| Logotipo |  |
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2-Phase Stepper-Motor Driver
Bipolar IC
Overview
Features
• 2 × 0.75 A / 50 V outputs
• Integrated driver, control logic and
current control (chopper)
• Fast free-wheeling diodes
• Low standby-current drain
• Full, half, quarter, mini step
TLE 4726
P-DSO-24-3
Type
TLE 4726 G
Ordering Code
Q67006-A9297
Package
P-DSO-24-3
Description
TLE 4726 is a bipolar, monolithic IC for driving bipolar stepper motors, DC motors and
other inductive loads that operate on constant current. The control logic and power
output stages for two bipolar windings are integrated on a single chip which permits
switched current control of motors with 0.75 A per phase at operating voltages up to
50 V.
The direction and value of current are programmed for each phase via separate control
inputs. A common oscillator generates the timing for the current control and turn-on with
phase offset of the two output stages. The two output stages in a full-bridge configuration
have integrated, fast free-wheeling diodes and are free of crossover current. The logic
is supplied either separately with 5 V or taken from the motor supply voltage by way of
a series resistor and an integrated Z-diode. The device can be driven directly by a
microprocessor with the possibility of all modes from full step through half step to mini
step.
Data Sheet 1 1999-09-15
1 page  
TLE 4726
Absolute Maximum Ratings
TA = – 40 to 125 °C
Parameter
Supply voltage
Logic supply voltage
Z-current of VL
Output current
Ground current
Logic inputs
R1, R2, oscillator input voltage
Junction temperature
Storage temperature
Symbol Limit Values
min. max.
VS 0 52
VL 0 6.5
IL – 50
IQ – 1 1
IGND – 2 2
VIxx – 6 VL +
0.3
VRX,
VOSC
Tj
Tj
Tstg
– 0.3
–
–
– 50
VL +
0.3
125
150
125
Unit Remarks
V–
V Z-diode
mA –
A–
A–
V IXX ; Phase 1, 2;
Inhibit
V–
°C –
°C max. 10,000 h
°C –
Note: Stresses above those listed here may cause permanent damage to the
device. Exposure to absolute maximum rating conditions for extended
periods may affect device reliability.
Data Sheet 5 1999-09-15
5 Page 
TLE 4726
Input Characteristics of Ixx, Phase X,
Inhibit
0.8
mA
Ι IXX 0.6
0.4
V L = 5V
IED01661
0.2
0
0.2
0.4
0.6
0.8
-6 -5 -2 3.9 2
V
6
V IXX
Oscillator Frequency fOSC versus
Junction Temperature Tj
IED01663
30
kHz
f OSC
V S = 40V
V L = 5V
COSZ = 2.2nF
25
Input Current of Inhibit versus Junction
Temperature Tj
20
15
-25 0 25 50 75 100 125 C 150
Tj
Data Sheet
11
1999-09-15
11 Page | ||
| Páginas | Total 23 Páginas | |
| PDF Descargar | [ Datasheet TLE4726G.PDF ] | |
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