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PDF TLE4727 Data sheet ( Hoja de datos )
| Número de pieza | TLE4727 | |
| Descripción | 2-Phase Stepper-Motor Driver | |
| Fabricantes | Siemens | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de TLE4727 (archivo pdf) en la parte inferior de esta página. Total 22 Páginas | ||
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2-Phase Stepper-Motor Driver
TLE 4727
Overview
Features
• 2 × 0.7 amp. outputs
• Integrated driver, control logic and current control
(chopper)
• Fast free-wheeling diodes
• Max. supply voltage 45 V
• Outputs free of crossover current
• Offset-phase turn-ON of output stages
• All outputs short-circuit proof
• 5 V output for logic supply
• Error-flag for overload, open load, overtemperature
P-DIP-20-3
Bipolar IC
Type
TLE 4727
Ordering Code
Q67000-A9099
Package
P-DIP-20-3
Description
The TLE 4727 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 0.7 A per phase at operating voltages up to 16 V.
The direction and value of current are programmable 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
include fast integrated free-wheeling diodes and are free of crossover current. The
device can be driven directly by a microprocessor in several modes by programming
phase direction and current control of each bridge independently.
A stabilized 5 V output allows the supply of external components up to 5 mA. With the
error output the TLE 4727 signals malfunction of the device. Setting the control inputs
high resets the error flag and by reactivating the bridges one by one the location of the
error can be found.
Semiconductor Group
1
1998-12-16
1 page  
TLE 4727
Absolute Maximum Ratings
Temperature Tj = – 40 to 150 °C
Parameter
Supply voltage
Error outputs
Logic supply voltage
Output current of VL
Output current
Ground current
Logic inputs
Oscillator voltage
R1, R2 input voltage
Junction temperature
Storage temperature
Thermal resistance
Junction ambient
Junction ambient (soldered on a
35 µm thick 20 cm2 PC board
copper area)
Junction case
Symbol Limit Values
min. max.
VS
VErr
IErr
VL
IL
IQ
IGND
VIXX
VOsc
VRX
Tj
Tj
Tstg
– 0.3
– 0.3
–
– 0.3
–5
–1
–2
– 15
– 0.3
– 0.3
–
–
– 50
45
45
3
6.5
1)
1
–
15
6
5
125
150
125
Rth ja
Rth ja
–
–
56
40
Rth jc
–
18
Unit Remarks
V–
V–
mA –
V–
mA 1) Int. limited
A–
A–
V IXX ; Phase X
V–
V–
°C –
°C Max. 10,000 h
°C –
K/W –
K/W –
K/W Measured on pin 5
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.
Semiconductor Group
5
1998-12-16
5 Page 
TLE 4727
Input Characteristics of IXX , Phase X
Output Leakage Current
Logic Supply Output Voltage versus
Output Current IL
6.0 IED01784
VL V
5.5
T j = 25 C
VS = 14 V
5.5
Logic Supply Output Voltage versus
Junction Temperature Tj
IED01785
6.0
V
VL
5.5
Ι L = 5 mA
VS = 14 V
5.0
4.5 4.5
4.0
0 1 2 3 4 5 mA 6
ΙL
4.0
-50 0 50 100 C 150
Tj
Semiconductor Group
11
1998-12-16
11 Page | ||
| Páginas | Total 22 Páginas | |
| PDF Descargar | [ Datasheet TLE4727.PDF ] | |
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