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PDF TCA3727 Data sheet ( Hoja de datos )
| Número de pieza | TCA3727 | |
| Descripción | 2-Phase Stepper-Motor Driver Bipolar IC | |
| Fabricantes | Infineon | |
| Logotipo |  |
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2-Phase Stepper-Motor Driver
Bipolar IC
TCA 3727
Features
• 2 × 0.75 amp. / 50 V outputs
• Integrated driver, control logic and current control
(chopper)
• Fast free-wheeling diodes
• Max. supply voltage 52 V
• Outputs free of crossover current
• Offset-phase turn-ON of output stages
• Z-diode for logic supply
• Low standby-current drain
• Full, half, quarter, mini step
Description
TCA 3727 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.
P-DSO-24-1, -3
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.
Type
TCA 3727
TCA 3727 G
Data Sheet
Ordering Code
Q67000-A8302
Q67000-A8335
1
Package
P-DIP-20-6
P-DSO-24-3
Rev. 2.0, 2004-10-01
1 page  
TCA 3727
+ VL
12
4 OSC
+ VS
9
Ι10 1
Ι11 2
Phase 1 3
Function
Logic
Phase 1
Inhibit 17
Inhibit
Ι 20 20
Ι 21 19
Phase 2 18
Function
Logic
Phase 2
5, 6, 15, 16
GND
Figure 3 Block Diagram TCA 3727
7 Q11
Phase 1
10 Q12
8 R1
14 Q21
Phase 2
11 Q22
13 R2
IEB00697
Data Sheet
5 Rev. 2.0, 2004-10-01
5 Page 
TCA 3727
Quiescent Current IS, IL versus
Supply Voltage VS
IED01655
40
mA
Ι S, Ι L
T j = 25 C
30
Ι XX = L
20 Ι L
Ι XX = H Ι L
10
ΙS
0
0 10 20 30 V 50
VS
Output Current IQX versus
Junction Temperature Tj
800
mA
Ι QX
IED01657
600
400
Quiescent Current IS, IL versus
Junction Temperature Tj
IED01656
40
mA
Ι S, Ι L
30
VS = 40V
20 Ι L
ΙL
ΙS
10
Ι XX = L
Ι XX = H
0
-25 0 25 50 75 100 C 150
Tj
Operating Condition:
• VL = 5 V
• VInh = H
• COSC = 2.2 nF
• Rsense = 1 Ω
• Load: L = 10 mH, R = 2.4 Ω
• fphase = 50 Hz
• mode: fullstep
200
0
-25 0 25 50 75 100 C 150
Tj
Data Sheet
11
Rev. 2.0, 2004-10-01
11 Page | ||
| Páginas | Total 29 Páginas | |
| PDF Descargar | [ Datasheet TCA3727.PDF ] | |
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