TLE4726G Infineon Technologies, TLE4726G Datasheet
TLE4726G
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TLE4726GNT
TLE4726GT
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TLE4726G Summary of contents
Page 1
Stepper-Motor Driver Bipolar IC Overview Features • outputs • Integrated driver, control logic and current control (chopper) • Fast free-wheeling diodes • Low standby-current drain • Full, half, quarter, mini step Type TLE ...
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Figure 1 Pin Configuration (top view) Data Sheet Phase OSC 4 21 GND 5 20 GND 6 19 GND 7 18 GND 8 17 Q11 ...
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Pin Definitions and Functions Pin No. Function 1, 2, 23, 24 Digital control inputs IX0, IX1 for the magnitude of the current of the particular phase. IX1 IX0 Input Phase 1; ...
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Oscillator 10 1 Functional 11 2 Logic Phase 1 Phase 1 3 Inhibit 21 Inhibit 20 24 Functional 21 23 Logic Phase 2 Phase 2 22 Figure 2 Block Diagram Data Sheet + ...
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Absolute Maximum Ratings T = – 125 C A Parameter Supply voltage Logic supply voltage V Z-current of L Output current Ground current Logic inputs oscillator input voltage 1 2 Junction temperature Storage temperature ...
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Operating Range Parameter Supply voltage Logic supply voltage Case temperature Output current Logic inputs Thermal Resistances Junction ambient Junction ambient (soldered thick boar 2 copper area) Junction case Note: In the operating range, ...
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Characteristics (cont’ – Parameter Symbol Oscillator I Output charging current V Charging threshold V Discharging threshold Frequency f Phase Current Selection Current Limit Threshold V No current V ...
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Characteristics (cont’ – Parameter Symbol Power Outputs Diode Transistor Sink Pair (D13, T13; D14, T14; D23, T23; D24, T24) Saturation voltage V V Saturation voltage I Reverse current ...
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Quiescent Current Supply Voltage Output ...
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Output Saturation Voltages I versus Output Current Typical Power Dissipation I Output Current (Non Stepping) Q Data Sheet V Forward Current sat Diodes versus Forward Voltages Q 1.0 F 0.8 0.6 0.4 0.2 P versus Permissible Power Dissipation tot versus ...
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Input Characteristics of Inhibit 0.8 mA 0.6 IXX 0.4 0.2 0 0.2 0.4 0.6 0 3.9 f Oscillator Frequency OSC T Junction Temperature 30 V kHz OSC OSZ 25 20 ...
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Figure 3 Test Circuit +5 V 100 F Micro Controller Figure 4 Application Circuit Data Sheet 220 Phase 1 21 Inhibit ...
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Accelerate Mode Phase acc i set Q1 i set i acc i acc i set Q2 i set i acc H Phase ...
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Accelerate Mode Phase acc i set set - i acc i acc i set set - i acc H Phase ...
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Figure 7 Quarter-Step Operation Data Sheet 15 TLE 4726 1999-09-15 ...
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Phase acc i set i hold Q1 i hold i set i acc i acc i set i hold Q2 i hold i set i acc H Phase 2 L ...
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V Osc 2 GND 0 V Q12 sat Q11 + Q22 Q21 + V S Operating conditions ...
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Inhibit L V Osc 2.3 V Oscillator High Imped. 1 Phase 1 L GND Q11 V High satl Impedance Q12 High Impedance Phase 1 Operating Conditions ...
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Calculation of Power Dissipation The total power dissipation P saturation losses P quiescent losses switching losses P s The following equations give the power dissipation for chopper operation without phase reversal. This is the worst case, because full current flows ...
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Figure 11 Turn-ON Voltage and Current at i Chopper Transistor Figure 12 Data Sheet + V S Tx1 Dx1 Dx2 L Tx3 Dx3 Dx4 V sense R sense Turn-OFF ...
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Application Hints The TLE 4726 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 4726 will work with supply voltages ...
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Thermal Shut Down To protect the circuit against thermal destruction, thermal shut down has been implemented. To provide a warning in critical applications, the current of the sensing element is wired to input Inhibit. Before thermal shut down occurs Inhibit ...
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Package Outlines P-DSO-24-3 (Plastic Dual Small Outline Package) 1.27 +0. Index Marking 1) Does not include plastic or metal protrusions of 0.15 max rer side 2) Does not include dambar protrusion of 0.05 max per side ...