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Infineon Technologies TLE4726GXUMA1
- Part No.:
- TLE4726GXUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Motor Drivers, Controllers
- Package:
- 24-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
TLE4726GXUMA1.pdf
- Description:
- IC MTR DRV BIPOLR 4.5-6.5V 24DSO
- Quantity:
- Payment:
- Shipping:
Inventory:2,762
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Product details
Overview
TLE4726GXUMA1 from Infineon Technologies is a bipolar stepper motor driver IC designed for open-loop 2-phase unipolar/bipolar operation, supporting 4.5–6.5 V supply, ±500 mA output current per phase, integrated current sensing, and thermal shutdown protection; used in automotive HVAC actuators and precision positioning modules.
For engineers reviewing the TLE4726GXUMA1 datasheet, TLE4726GXUMA1 pinout, TLE4726GXUMA1 application, or TLE4726GXUMA1 equivalent, key selection criteria include phase current capability, supply voltage range, integrated diagnostic flags (overcurrent/thermal), and DSO-24 package compatibility with automotive PCB layouts.
Technical Context
The TLE4726GXUMA1 integrates two matched bipolar H-bridge outputs with internal current regulation via external sense resistors and PWM-controlled chopper mode. It features dedicated INHIBIT and STEP/DIR control logic compatible with microcontroller GPIOs.
Internal diagnostics include overtemperature flag (OTF), overcurrent detection per phase (OCF), and undervoltage lockout (UVLO) at 4.2 V nominal. All fault signals are latched and reported on dedicated open-drain output pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 4.5 V to 6.5 V - supports direct connection to automotive 5 V rail with margin for transients |
| Output Current per Phase | ±500 mA - sufficient for small 2-phase stepper motors up to 1.2 N·m holding torque |
| Current Sensing | External RSENSE based - enables precise current regulation and dynamic torque control |
| Thermal Protection | Integrated thermal shutdown at 165 °C - prevents latch-up during stall or overload conditions |
| Fault Reporting | Separate OCF, OTF, UVLO open-drain flags - allows real-time system-level error classification |
| Control Interface | STEP/DIR + INHIBIT - simplifies microcontroller firmware with standard stepping protocol |
Pinout & Package
Package: 24-pin DSO (Dual Small Outline, exposed thermal pad, pitch 1.27 mm, body size 15.4 mm × 7.5 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VBB | Power supply input | Connects to regulated 5 V rail; decoupling capacitor required at pin |
| GND | Ground reference | Common return for power, logic, and sense paths; tied to thermal pad |
| OUT1A / OUT1B / OUT2A / OUT2B | H-bridge outputs | Drive coil ends of two-phase stepper motor; each pair forms one full bridge |
| ISEN1 / ISEN2 | Current sense inputs | Accept voltage drop across external sense resistors for chopper regulation |
| STEP / DIR / INH | Digital control inputs | Edge-triggered step clock, direction polarity, and global enable/disable |
| OCF / OTF / UVLO | Open-drain fault outputs | Active-low latched flags indicating phase overcurrent, overtemperature, or undervoltage |
Key Features
| Feature | Design Value |
|---|---|
| Bipolar H-bridge topology | Enables full-step, half-step, and microstepping with external controller timing |
| Integrated thermal shutdown | Self-resetting protection at 165 °C junction temperature without external circuitry |
| Dedicated fault flag pins | Three independent open-drain outputs allow parallel MCU interrupt handling |
| Wide supply range (4.5–6.5 V) | Accommodates battery voltage variation in 5 V automotive subsystems |
Applications
| Automotive HVAC Actuators | Engine Throttle Control |
|---|---|
Use Scenario: Precise air flap positioning in climate control systems under varying cabin temperatures and vibration. IC Role / Device Role / Timing Role: Bipolar stepper driver executing microstep commands from HVAC ECU via STEP/DIR interface. Use Value: Enables smooth, silent actuation with ±500 mA phase current and thermal fault reporting for ASIL-B relevant diagnostics. | Use Scenario: Closed-loop throttle valve positioning in gasoline engine management systems. IC Role / Device Role / Timing Role: Motor driver translating ECU PWM-based step commands into bidirectional coil excitation. Use Value: Supports fail-safe behavior via latched OCF/OTF flags and operates reliably across 4.5–6.5 V supply range during cranking events. |
| Industrial Valve Positioners | Medical Infusion Pumps |
Use Scenario: Accurate linear motion control of pneumatic or hydraulic valves in process automation cabinets. IC Role / Device Role / Timing Role: Bipolar driver receiving step pulses from PLC or motion controller to rotate lead-screw mechanism. Use Value: External current sensing allows calibration to motor-specific torque requirements while maintaining thermal safety. | Use Scenario: Dosing accuracy-critical syringe advancement in portable infusion devices. IC Role / Device Role / Timing Role: Low-noise stepper driver enabling microstepping for sub-microliter fluid displacement. Use Value: Integrated UVLO prevents erratic motion during battery voltage sag, ensuring dose integrity compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bipolar stepper motor driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLE4727GXUMA1 | Same pinout, higher max supply (up to 28 V), added watchdog timer | Suitable for 12 V/24 V automotive systems requiring extended voltage tolerance | Select when operating beyond 6.5 V or needing watchdog supervision |
| BD63810FV | 36 V max supply, integrated current DAC, no separate fault flags | Lacks discrete OCF/OTF/UVLO outputs; requires MCU ADC polling for diagnostics | Prefer for cost-sensitive industrial designs where diagnostic granularity is secondary |
Compared with TLE4726GXUMA1, TLE4727GXUMA1 extends voltage range and adds functional safety features, while BD63810FV trades diagnostic visibility for integration density and wider supply flexibility.
Availability
TLE4726GXUMA1 is available at Aetrix Electronics and suitable for automotive HVAC actuators, engine throttle control, and industrial valve positioners requiring stable component supply across production lifecycles.
Supply support for TLE4726GXUMA1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive electronics, and industrial control ICs.
The TLE4726GXUMA1 belongs to Infineon's TLE family of automotive-grade motor drivers, engineered specifically for robust, low-voltage bipolar stepper control in safety-conscious vehicle subsystems.
FAQ
What is the maximum continuous output current per phase for TLE4726GXUMA1?
The TLE4726GXUMA1 delivers ±500 mA continuous output current per phase under typical thermal conditions (TA = 25 °C, PCB copper area ≥ 10 cm²). Derating applies above 85 °C ambient; full current is maintained up to 125 °C junction temperature with proper heatsinking via the exposed thermal pad.
Does TLE4726GXUMA1 support microstepping?
Yes - TLE4726GXUMA1 supports microstepping when driven by an external controller generating precise STEP/DIR timing sequences. The IC itself implements chopper-stabilized current regulation per phase but does not generate microstep waveforms internally; resolution depends on controller-generated pulse division.
How is thermal protection implemented?
Thermal protection is implemented via an integrated junction temperature sensor that triggers latched shutdown at 165 °C. The OTF pin goes low and remains latched until INH is toggled or VBB is cycled. Recovery occurs automatically after junction temperature drops below 145 °C hysteresis threshold.
Can TLE4726GXUMA1 drive unipolar stepper motors?
No - TLE4726GXUMA1 is designed exclusively for bipolar stepper motors using four-wire configurations. Its dual H-bridge architecture requires independent control of both coil ends per phase and cannot interface with center-tapped unipolar motors without external transistor reconfiguration.
TLE4726GXUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 24-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Motor Type - Stepper:
- Bipolar
- Motor Type - AC, DC:
- Brushed DC
- Function:
- Driver - Fully Integrated, Control and Power Stage
- Output Configuration:
- Half Bridge (4)
- Interface:
- Parallel
- Technology:
- Bipolar
- Step Resolution:
- 1, 1/2, 1/4
- Applications:
- General Purpose
- Current - Output:
- 800mA
- Voltage - Supply:
- 4.5V ~ 6.5V
- Voltage - Load:
- 5V ~ 50V
- Operating Temperature:
- -25°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-DSO-24-13
TLE4726GXUMA1 FAQ
1.How can I place an order for TLE4726GXUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE4726GXUMA1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TLE4726GXUMA1 reliable?
The price and inventory of TLE4726GXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4726GXUMA1 is usually 5 days.
3.What payment methods are accepted for TLE4726GXUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4726GXUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE4726GXUMA1?
TLE4726GXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE4726GXUMA1 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TLE4726GXUMA1?
For technical support, including TLE4726GXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4726GXUMA1 requirements.
6.How does Aetrix verify that TLE4726GXUMA1 is sourced from the original manufacturer or authorized distributors?
All TLE4726GXUMA1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TLE4726GXUMA1 meets industry standards.
7.What is the process for return or replacement of TLE4726GXUMA1?
All TLE4726GXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4726GXUMA1, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TLE4726GXUMA1 part is unused and in its original packaging.
Return procedure for TLE4726GXUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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