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PDF TLE4729G Data sheet ( Hoja de datos )
| Número de pieza | TLE4729G | |
| Descripción | 2-Phase Stepper-Motor Driver Bipolar-IC | |
| Fabricantes | Infineon Technologies | |
| Logotipo |  |
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2-Phase Stepper-Motor Driver
Bipolar-IC
TLE4729G
Features
• 2 × 0.7 amp. full bridge outputs
• Integrated driver, control logic and current control
(chopper)
• Very low current consumption in inhibit mode
• Fast free-wheeling diodes
• Max. supply voltage 45 V
• Output stages are free of crossover current
• Offset-phase turn-ON of output stages
• All outputs short-circuit proof
• Error-flag for overload, open load, over-temperature
• SMD package PG-DSO-24-16
• Green Product (RoHS compliant)
• AEC Qualified
PG-DSO-24-16
Type
TLE4729G
Package
PG-DSO-24-16 (SMD)
Functional Description
TLE4729G is a bipolar, monolithic IC for driving bipolar stepper motors, DC motors and
other inductive loads that operate by constant current. It is fully pin and function
compatible except the current programming is inverse to the TLE4728G with an
additional inhibit feature. 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. In the case of low at all four current program inputs the device is switched to
inhibit mode automatically. 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
full-bridge configuration include fast integrated freewheeling 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.
Data Sheet
1 V1.2, 2008-03-18
1 page  
TLE 4729 G
Absolute Maximum Ratings
Tj = – 40 to 150 °C
Parameter
Symbol Limit Values
min. max.
Supply voltage
VS
Error outputs
VErr
IErr
Output current
IQ
Ground current
IGND
Logic inputs
VIXX
Oscillator voltage
VOSC
R1, R2 input voltage
VRX
Junction temperature
Tj
Storage temperature
Tstg
Thermal resistances
Junction-ambient
Rth ja
Junction-ambient
Rth ja
(soldered on a 35 µm thick
20 cm2 PC board copper
area)
Junction-case
Rth jc
– 0.3
– 0.3
–
–1
–2
– 15
– 0.3
– 0.3
– 40
– 50
45
45
3
1
–
15
6
5
150
150
– 75
– 50
– 15
Unit Remarks
V–
V–
mA –
A–
A–
V IXX; Phase 1, 2
V–
V–
°C
°C –
K/W –
K/W –
K/W Measured on pin 5
Operating Range
Supply voltage
Case temperature
Output current
Logic inputs
Error outputs
VS
TC
IQ
VIXX
VErr
IErr
5 16
– 40 110
– 800
–5
–
0
800
+6
25
1
V–
°C Measured on pin 5
Pdiss = 2 W
mA –
V IXX; Phase 1, 2
V–
mA –
Data Sheet
5 V1.2, 2008-03-18
5 Page 
TLE 4729 G
b) IXX = H, error condition: open load (equivalent: short circuit to + VS).
Phase X
Error 1
t PEol
AET02201
typ. tPEol: 15 µs
c) Phase X = H or L, const.; error condition: short circuit to GND.
ΙXX
Error 2
t IEsc
AET02202
typ. tIEsc: 30 µs
tIEsc is also measured under the condition: begin of short circuit to GND till error flag set.
Data Sheet
11 V1.2, 2008-03-18
11 Page | ||
| Páginas | Total 29 Páginas | |
| PDF Descargar | [ Datasheet TLE4729G.PDF ] | |
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