TLE4729G Infineon Technologies, TLE4729G Datasheet

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TLE4729G

Manufacturer Part Number
TLE4729G
Description
IC STEPPER MOTOR DRVR PDSO-24-9
Manufacturer
Infineon Technologies
Type
Stepper Motor Controller/Driverr
Datasheets

Specifications of TLE4729G

Applications
Stepper Motor Driver, 2 Phase
Number Of Outputs
1
Current - Output
800mA
Voltage - Supply
5 V ~ 16 V
Operating Temperature
-40°C ~ 110°C
Mounting Type
Surface Mount
Package / Case
DSO-24
Product
Stepper Motor Controllers / Drivers
Operating Supply Voltage
5 V to 16 V
Supply Current
50 mA
Mounting Style
SMD/SMT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Load
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
SP000011867
SP000398988
TLE4729G
TLE4729GINTR
TLE4729GNT
TLE4729GT
TLE4729GXT

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2-Phase Stepper-Motor Driver
Bipolar-IC
Features
• 2 × 0.7 amp. full bridge outputs
• Integrated driver, control logic and current control
• 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 P-DSO-24-9
Type
TLE 4729 G
Functional Description
TLE 4729 G 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 TLE 4728 G 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
(chopper)
Ordering Code
on request
1
P-DSO-24-9 (SMD)
Package
TLE 4729 G
2005-01-17

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TLE4729G Summary of contents

Page 1

Stepper-Motor Driver Bipolar-IC 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 ...

Page 2

With the two error outputs the TLE 4729 G signals malfunction of the device. Setting the control inputs low resets the error flag and by reactivating the bridges one by one the location of the error can be found. Pin ...

Page 3

Pin Definitions and Functions Pin Function 1, 2, 23, 24 Digital control inputs IX0, IX1 for the magnitude of the current of the particular phase 450 mA with set IX1 IX0 ...

Page 4

Block Diagram OSC C OSC 10 11 Phase 1 Error 1 Error Phase 2 Figure 2 Data Sheet Oscillator T11 Function Logic T13 Phase 1 Error-Flag Generation Inhibit T21 Function Logic T23 Phase 2 GND 4 TLE ...

Page 5

Absolute Maximum Ratings = – 150 ° Parameter Supply voltage Error outputs Output current Ground current Logic inputs Oscillator voltage input voltage 1 2 Junction temperature Storage temperature Thermal resistances Junction-ambient Junction-ambient (soldered ...

Page 6

Characteristics = – 130 ° Parameter Current Consumption From + V S From + V S Oscillator Output charging current Charging threshold Discharging threshold Frequency Phase Current ( V ...

Page 7

Characteristics (cont’d) = – 130 ° Parameter Error Outputs Saturation voltage Leakage current Thermal Protection Shutdown Prealarm Delta Hysteresis shutdown Hysteresis prealarm Power Outputs Diode Transistor Sink Pair (D13, ...

Page 8

Characteristics (cont’d) = – 130 ° Parameter Error Output Timing Time Phase X to IXX Time IXX to Phase X Delay Phase X to Error 2 Delay Phase X ...

Page 9

Diagrams Timing between IXX and Phase X to prevent setting the error flag Operating conditions ° Phase X < typ. 5 µs, an error “open load” will ...

Page 10

This time strongly depends Time vs. Load Inductivity Propagation Delay of the Error Flag Operating conditions: = ...

Page 11

IXX = H, error condition: open load (equivalent: short circuit to + Phase X Error µs typ. t PEol c) Phase const.; error condition: short circuit to GND. XX Error 2 ...

Page 12

IXX = H, reset of error flag when error condition is not true. Phase x Error µs typ Phase const.; reset of error flag when error condition is ...

Page 13

I Quiescent Current vs. Supply Voltage °C bridges not chopping Oscillator Frequency f Osc Junction Temperature kHz f Osc 25 V ...

Page 14

Output Saturation Voltages vs. Output Current I Q 2.0 V sat = 1.5 V satuC 1 0.2 0.4 Typical Power Dissipation Output Current I (non ...

Page 15

I Input Characteristics - 150 C -80 -100 -120 - Quiescent Current vs. Supply Voltage °C ...

Page 16

Microcontroller Figure 3 Application Circuit Data Sheet Phase 1 21 Error 1 TLE 4729 G 14 Error Phase 2 OSC ...

Page 17

V Err V Err V OSC Figure 4 Test Circuit Data Sheet 100 F 100 XX, Phase X TLE 4729 G Error X R Osc GND OSC SL GND 2 TLE ...

Page 18

Phase acc i set set - i acc i acc i set set - i acc H Phase ...

Page 19

Phase acc i set set - i acc i acc i set set - i acc H Phase ...

Page 20

V Osc V Osc H V Osc L Rsense 1 0 Rsense Q12 + satl Q11 + Q22 Q21 + V S ...

Page 21

V Osc 2.3 V 1.3 V Oscillator High Imped Phase L Rsense Q11 +V S High Impedance V Q12 + V S High Impedance set Phase Operating conditions ...

Page 22

Calculation of Power Dissipation The total power dissipation Saturation losses P sat P Quiescent losses q Switching losses P s The following equations give the power dissipation for chopper operation without phase reversal. This is the worst case, because full ...

Page 23

Figure 9 Turn-ON Voltage and Current on i Chopper Transistor Figure 10 Voltage and Current on Chopper Transistor Data Sheet + V S Tx1 Dx1 Dx2 L Tx3 Dx3 Dx4 V C ...

Page 24

Application Hints The TLE 4729 G is intended to drive both phases of a stepper motor. Special care has been taken to provide high efficiency, robustness and to minimize external components. Power Supply The TLE 4729 G will work with ...

Page 25

Application Hints (cont’d) Optimizing Noise Immunity Unused inputs should always be wired to proper voltage levels in order to obtain highest possible noise immunity. To prevent crossconduction of the output stages the TLE 4729 G uses a special break before ...

Page 26

Only in the case of a short circuit to GND, the most probably kind of a short circuit in automotive applications, the malfunction is signaled dominant (see d) in logic table separate error flag. Simultaneously the output current ...

Page 27

Package Outlines P-DSO-24-9 (Plastic Dual Small Outline Package) 1.27 +0. Index Marking 1) Does not include plastic or metal protrusion of 0.15 max. per side 2) Lead width can be 0.61 max. in dambar area Sorts ...

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