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Infineon Technologies TLE4929CXHAM38NHAMA1
- Part No.:
- TLE4929CXHAM38NHAMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Switches (Solid State)
- Package:
- 3-SSIP Module
- Datasheet:
-
TLE4929CXHAM38NHAMA1.pdf
- Description:
- SPEED & CURRENT SENSORS
- Quantity:
- Payment:
- Shipping:
Inventory:2,996
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Product details
Overview
TLE4929CXHAM38NHAMA1 from Infineon is an automotive-grade universal speed sensor IC with integrated differential Hall sensing, direction detection, and Stop-Start algorithm for crankshaft and transmission applications. It operates from 4.0–16 V supply, delivers ≤19 µs magnetic-to-output delay, supports 0–8 kHz magnetic signal frequency, and features on-chip 470 nF/25 V CVDD capacitor for robust EMI immunity in engine bay environments.
For engineers reviewing the TLE4929CXHAM38NHAMA1 datasheet, TLE4929CXHAM38NHAMA1 pinout, TLE4929CXHAM38NHAMA1 application, or TLE4929CXHAM38NHAMA1 equivalent, this device is selected for high-accuracy rotational speed and direction sensing where low jitter (≤19 µs), stray-field immunity, and adaptive threshold calibration under thermal drift are critical design requirements.
Technical Context
The TLE4929CXHAM38NHAMA1 implements a dual-Hall differential architecture with center and outer Hall elements to reject common-mode magnetic interference. Its Hybrid Algorithm continuously recalibrates offset during electric drive operation using EEPROM-stored compensation parameters.
It integrates programmable switching thresholds (K-FACTOR), four selectable output delay modes (10–28 µs), and dedicated watchdogs for Stop-Start, time, and hybrid vehicle operation. Direction detection is enabled up to 1.8 kHz and validated for pole-wheel and tooth-wheel configurations with backward-compatible mid-tooth switching.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 4.0–16 V continuous - supports direct battery connection without external regulator in 12 V automotive systems |
| Magnetic Signal Frequency | 0–8000 Hz full accuracy - enables crankshaft sensing up to 4800 RPM with 60-tooth wheel at 12 V |
| Output Delay (tdelay) | 10–19 µs typical - ensures deterministic timing for engine control unit (ECU) synchronization |
| Integrated Capacitance (CVDD) | 470 nF ±10% @ 25 V - eliminates need for external bulk capacitor and reduces PCB footprint |
| Junction Temperature Range | −40 °C to +175 °C - qualified for under-hood placement near engines and transmissions |
| Direction Detection Range | 0–1800 Hz increasing / 0–1500 Hz decreasing - supports bidirectional gear position and camshaft phase detection |
| Static Magnetic Offset Compensation | ±550 mT (back-bias) / ±10 mT (pole-wheel) - enables stable operation across mechanical air-gap variations |
Pinout & Package
Supplied in PG-SSO-3-53 (3-pin leadless surface-mount package), RoHS-compliant, qualified per AEC-Q100 Grade 0. Package dimensions: 3.0 × 2.5 × 0.9 mm, moisture sensitivity level MSL3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | Accepts 4–16 V; internal clamp diode protects against load-dump transients up to 42 V |
| GND | Ground reference | Common return for supply, output, and internal capacitors; requires low-inductance layout |
| Q | Open-drain output | Sinks up to 15 mA; requires external pull-up resistor (1.2 kΩ typical); compatible with 3.3 V or 5 V logic interfaces |
Key Features
| Feature | Design Value |
|---|---|
| Differential Hall sensing | Rejects stray magnetic fields >30 mT difference between outer probes - enables reliable operation near motors and solenoids |
| Programmable K-FACTOR threshold | Adapts switching point dynamically to aging and temperature drift - maintains <1% jitter over lifetime |
| Stop-Start Algorithm | Detects zero-speed with ΔB ≥ 4 mTpkpk at ≤20 K thermal drift - prevents false pulses during engine restart |
| Hybrid Vehicle Watchdog | Monitors power cycling and signal integrity during EV/HEV mode transitions - ensures fail-safe behavior during propulsion handover |
| EEPROM programming | 100-cycle endurance for calibration data storage - supports field updates of offset, delay, and direction parameters |
Applications
| Engine Crankshaft Sensing | Transmission Input Speed |
|---|---|
|
Use Scenario: Detecting crankshaft rotation and top-dead-center position for ignition timing and fuel injection control in ICE powertrains. IC Role / Device Role / Timing Role: Primary speed and direction sensor feeding real-time angular position to ECU via open-drain pulse train. Use Value: ≤19 µs delay and mid-tooth switching ensure sub-degree timing accuracy at 6000 RPM; integrated CVDD suppresses battery ripple-induced jitter. |
Use Scenario: Measuring input shaft speed in automatic and dual-clutch transmissions to enable torque converter lockup and gear shift optimization. IC Role / Device Role / Timing Role: High-reliability magnetic speed interface with direction detection for closed-loop transmission control. Use Value: 0–1800 Hz direction detection range and 1.8 nF CQ support fast response to rapid acceleration/deceleration events during gear changes. |
| Electric Power Steering (EPS) | Hybrid Powertrain Mode Detection |
|
Use Scenario: Monitoring motor rotor position and speed in brushless EPS assist motors to coordinate torque overlay with driver input. IC Role / Device Role / Timing Role: Robust speed feedback element tolerant to EMI from nearby inverter switching. Use Value: Differential sensing rejects stray fields from adjacent 48 V power stages; −40 °C to +175 °C rating matches EPS module thermal envelope. |
Use Scenario: Identifying engine-on vs. electric-only operation in PHEV architectures by detecting crankshaft motion cessation and restart. IC Role / Device Role / Timing Role: Stop-Start watchdog and Hybrid Vehicle Watchdog provide deterministic state transition signals to vehicle controller. Use Value: ΔB ≥ 4 mTpkpk stop-start sensitivity and EEPROM-stored calibration maintain detection reliability across 100+ cold starts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar universal speed sensor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLE4929C-XHA-M18N | Integrated 100 nF/50 V CVDD capacitor; lower capacitance limits high-frequency noise suppression | Better suited for 5 V supply systems with tighter board space constraints | Select when system voltage is stable ≤12 V and EMI environment is moderate |
| TLV4929-2K | Single-ended Hall architecture; no direction detection; fixed 12 µs delay; no EEPROM | Limited to unidirectional speed sensing in cost-sensitive non-automotive applications | Choose only if direction detection, Stop-Start, and field-programmability are not required |
Compared with TLE4929CXHAM38NHAMA1, the M18N variant trades off EMI resilience for smaller CVDD size, while TLV4929-2K omits core automotive features like direction sensing and adaptive calibration-making it unsuitable for crankshaft or hybrid mode detection.
Availability
TLE4929CXHAM38NHAMA1 is available at Aetrix Electronics and suitable for engine management systems, transmission control units, and electric power steering modules requiring stable component supply across automotive production lifecycles.
Supply support for TLE4929CXHAM38NHAMA1 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 ICs, and sensor solutions, with global R&D and manufacturing infrastructure.
This part belongs to Infineon's TLE49xx universal speed sensor product line, engineered specifically for high-reliability rotational sensing in automotive powertrain and chassis systems under extreme thermal and EMI conditions.
FAQ
What is the purpose of the integrated 470 nF capacitor in the TLE4929CXHAM38NHAMA1?
The integrated 470 nF/25 V CVDD capacitor provides local decoupling at the VDD pin, reducing susceptibility to battery ripple and load-dump transients. It eliminates the need for an external bulk capacitor, simplifies PCB layout, and improves jitter performance by stabilizing supply voltage during high-frequency magnetic signal transitions.
Does the TLE4929CXHAM38NHAMA1 require external programming hardware for configuration?
No external programmer is required for basic operation. Factory-programmed EEPROM settings enable immediate use. However, optional field reconfiguration of delay modes, K-FACTOR, and direction thresholds requires Infineon's SAK-4 tool and compatible serial interface circuitry per datasheet Section 3.13.
Can the TLE4929CXHAM38NHAMA1 detect direction on a 60-tooth crankwheel?
Yes-it supports direction detection on standard 60-tooth wheels up to 1800 Hz (equivalent to 1800 RPM). The differential sensing architecture and Stop-Start Algorithm ensure reliable backward/forward discrimination even during low-speed cranking and transient engine stops.
What is the maximum allowable air gap between the TLE4929CXHAM38NHAMA1 and a ferrous target wheel?
The maximum functional air gap depends on magnet strength and wheel geometry but is typically 1.5–2.5 mm for standard NdFeB magnets and 60-tooth wheels. The device's ±550 mT static range in back-bias mode allows robust operation despite mechanical tolerances and thermal expansion in engine-mounted installations.
TLE4929CXHAM38NHAMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 3-SSIP Module
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- -
- Technology:
- Hall Effect
- Polarization:
- -
- Sensing Range:
- ±120mT
- Test Condition:
- -
- Voltage - Supply:
- 4V ~ 16V
- Current - Supply (Max):
- 13.4mA
- Current - Output (Max):
- 15mA
- Output Type:
- Open Drain
- Features:
- Programmable, Temperature Compensated
- Operating Temperature:
- -40°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- PG-SSO-3-53
TLE4929CXHAM38NHAMA1 FAQ
1.How can I place an order for TLE4929CXHAM38NHAMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE4929CXHAM38NHAMA1 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 TLE4929CXHAM38NHAMA1 reliable?
The price and inventory of TLE4929CXHAM38NHAMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4929CXHAM38NHAMA1 is usually 5 days.
3.What payment methods are accepted for TLE4929CXHAM38NHAMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4929CXHAM38NHAMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE4929CXHAM38NHAMA1?
TLE4929CXHAM38NHAMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE4929CXHAM38NHAMA1 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 TLE4929CXHAM38NHAMA1?
For technical support, including TLE4929CXHAM38NHAMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4929CXHAM38NHAMA1 requirements.
6.How does Aetrix verify that TLE4929CXHAM38NHAMA1 is sourced from the original manufacturer or authorized distributors?
All TLE4929CXHAM38NHAMA1 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 TLE4929CXHAM38NHAMA1 meets industry standards.
7.What is the process for return or replacement of TLE4929CXHAM38NHAMA1?
All TLE4929CXHAM38NHAMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4929CXHAM38NHAMA1, 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 TLE4929CXHAM38NHAMA1 part is unused and in its original packaging.
Return procedure for TLE4929CXHAM38NHAMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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