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Infineon Technologies TLE4929CXVAM38AAHAMA1
- Part No.:
- TLE4929CXVAM38AAHAMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Switches (Solid State)
- Package:
- 3-SIP Module
- Datasheet:
-
TLE4929CXVAM38AAHAMA1.pdf
- Description:
- SPEED SENSORS
- Quantity:
- Payment:
- Shipping:
Inventory:1,500
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Product details
Overview
TLE4929CXVAM38AAHAMA1 from Infineon is a fully programmable, differential Hall-effect crankshaft sensor IC with integrated 220 nF and 1.8 nF capacitors, operating from 4.0–16 V supply, delivering ≤0.025° crank jitter at 150°C and supporting direction detection up to 1800 Hz - deployed in automotive engine management systems for precise speed/position sensing of toothed wheels.
For engineers reviewing the TLE4929CXVAM38AAHAMA1 datasheet, TLE4929CXVAM38AAHAMA1 pinout, TLE4929CXVAM38AAHAMA1 application, or TLE4929CXVAM38AAHAMA1 equivalent, key selection criteria include its EEPROM-programmable hysteresis (0.53–5.56 mTpk), stop-start algorithm robustness (ΔT ≤ 60 K), differential stray-field immunity, and PG-SSO-3-52 package compatibility with high-EMC automotive harness environments.
Technical Context
The TLE4929CXVAM38AAHAMA1 implements a dual-Hall differential architecture with dedicated speed and direction channels, each featuring independent ADC ranges: ±120 mT for speed and ±60 mT for direction detection. Its internal calibration phase adapts switching thresholds during engine start-up using programmable DNC_MIN and HYST options.
It integrates a serial interface for end-of-line programming, supports high-speed mode (up to 10 kHz magnetic signal), and embeds system-level watchdogs - including a Stop-Start Watchdog that suppresses false pulses under thermal drift ≤60 K, validated by guaranteed ΔBSpeed_Stop,Start ≥4 mTpk for ≤20 K drift.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 4.0–16 V continuous - enables direct connection to automotive battery rails without external regulation |
| Jitter (3σ) | ≤0.025° crank at ΔB = 9 mTpkpk, 8 kHz, 150°C - ensures sub-degree timing accuracy for ignition/fuel injection control |
| Direction Detection Range | 0–1800 Hz increasing / 0–1500 Hz decreasing - supports fast-cranking and hybrid stop-start cycles |
| Magnetic Dynamic Range (Speed) | ±120 mT - accommodates large air gaps and variable wheel geometries without signal saturation |
| Integrated Capacitance | CVDD = 220 nF, CQ = 1.8 nF - embedded on lead frame to meet CISPR 25 Class 5 EMC requirements without external components |
| EEPROM End-of-Line Programmability | Up to 100 write cycles - allows post-assembly calibration to engine-specific tooth profiles and magnetic offsets |
| Operating Junction Temp | −40°C to +175°C (2500 h lifetime) - qualified for under-hood placement near cylinder heads and turbochargers |
Pinout & Package
The TLE4929CXVAM38AAHAMA1 is housed in a RoHS-compliant PG-SSO-3-52 surface-mount package (3-pin, single-side leaded), with integrated decoupling capacitors on the lead frame to enhance EMC resilience.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Supply input | Accepts 4.0–16 V; clamped at 42 V for load-dump protection; powers internal regulator and Hall sensors |
| GND | Ground reference | Common return for supply, output, and internal bias networks; referenced to CVDD and CQ capacitors |
| Q | Digital output | Open-drain N-channel output requiring external 1.2 kΩ pull-up; delivers ≤500 mV saturation at 15 mA sink |
Key Features
| Feature | Design Value |
|---|---|
| Differential Hall sensing | Rejects uniform magnetic stray fields >95% - eliminates interference from adjacent solenoids or alternators |
| Programmable hysteresis | Four EEPROM-selectable levels (0.53–5.56 mTpk) - prevents chatter on worn or contaminated wheels |
| Stop-Start Algorithm | Validated for ≤60 K thermal drift between engine stops - guarantees zero false pulses during restart |
| Backward-compatible switching point | Centered on tooth edge - maintains timing alignment with legacy crank sensors during platform upgrades |
| Integrated diagnostics | Digital protocol via output pin - enables real-time health reporting without extra wiring or pins |
Applications
| Engine Crankshaft Sensing | Hybrid Vehicle Stop-Start Systems |
|---|---|
|
Use Scenario: Real-time crank angle measurement for spark timing and fuel injection in ICE powertrains. IC Role / Device Role / Timing Role: Primary crank position sensor providing 0.025° crank jitter-limited edge timing to ECU. Use Value: Enables <1° crank phase error during full-load operation at 150°C, meeting Euro 7 combustion control requirements. |
Use Scenario: Detecting engine rotation resumption after automatic shutdown in 48 V mild-hybrid architectures. IC Role / Device Role / Timing Role: Direction-aware speed sensor triggering restart within 200 ms while rejecting thermal drift artifacts. Use Value: Zero false pulses after stop-start events with ≤60 K ambient temperature shift, verified per ISO 26262 ASIL-B. |
| Transmission Input Speed Monitoring | Dual-Camshaft Synchronization |
|
Use Scenario: Measuring torque converter turbine speed in automatic transmissions with high-vibration mounting. IC Role / Device Role / Timing Role: Differential Hall sensor compensating for mechanical runout and magnetic offset drift. Use Value: Maintains ±120 mT dynamic range and ±0.2° crank phase accuracy despite 5 mm air gap variation and 10 g vibration. |
Use Scenario: Simultaneous cam and crank timing for variable valve timing (VVT) actuation in DOHC engines. IC Role / Device Role / Timing Role: Configurable as differential cam sensor using same hardware platform and EEPROM settings. Use Value: Reduces BOM count by reusing TLE4929C platform across crank and cam positions without redesign. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar crankshaft sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Melexis MLX90363 | Triaxis® Hall architecture; SPI interface only; no integrated capacitors; requires external 100 nF CVDD | Lacks built-in stop-start algorithm and direction detection hysteresis tuning; limited to 125°C junction rating | Preferred where SPI bus integration and 3D field mapping outweigh need for drop-in EMC compliance and thermal robustness |
| NXP TLE4961-3M | Single-Hall architecture; fixed hysteresis; no EEPROM programming; 100 nF CVDD external | No direction detection or adaptive calibration; jitter spec ≥0.05° crank at 125°C - insufficient for ASIL-B timing-critical paths | Suitable for cost-sensitive non-safety applications where engine cranking speed is stable and thermal cycling minimal |
Compared with MLX90363 and TLE4961-3M, the TLE4929CXVAM38AAHAMA1 uniquely combines on-package EMC filtering, EEPROM-tunable hysteresis, and validated stop-start reliability - making it the only option qualified for ASIL-B crank sensing in high-temperature, high-vibration powertrain domains.
Availability
TLE4929CXVAM38AAHAMA1 is available at Aetrix Electronics and suitable for automotive engine control units, hybrid vehicle stop-start modules, transmission speed monitoring systems, and dual-camshaft synchronization circuits requiring stable component supply across extended product lifecycles.
Supply support for TLE4929CXVAM38AAHAMA1 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 over 30 years of automotive qualification expertise.
The TLE4929C belongs to Infineon's automotive Hall sensor product line, engineered specifically for high-accuracy, high-reliability crankshaft and camshaft position sensing in demanding under-hood environments.
FAQ
What is the maximum allowable air gap for reliable operation?
The TLE4929CXVAM38AAHAMA1 supports air gaps up to 3.5 mm with standard ferrite magnets due to its high sensitivity (±120 mT dynamic range) and differential architecture. At 3.5 mm, minimum required differential field amplitude remains ≥9 mTpk for full jitter performance - confirmed per Figure 2 in the datasheet using 4-pole encoder wheels.
Does this part require an external pull-up resistor?
Yes - a 1.2 kΩ ±10% pull-up resistor is mandatory on the Q output pin to ensure proper logic-high level and specified rise/fall times. The datasheet defines VPullup = 5 V as reference, but the resistor value scales linearly for 12 V systems; derating for power dissipation above 125°C is recommended.
Can the EEPROM be reprogrammed in-system after soldering?
No - EEPROM programming is only supported during end-of-line (EOL) testing using Infineon's dedicated programming tool (TLE4929C-PROG) and requires stable 15–16 V supply and controlled ambient temperature (15–130°C). Field reprogramming is not supported; configuration is locked post-programming.
How does the Stop-Start Algorithm prevent false pulses during thermal transients?
The algorithm monitors speed-channel mean value drift over time and disables output transitions when differential field change falls below programmable DNC_MIN thresholds (e.g., 4 mTpk for ≤20 K drift). This suppression window expires only after valid rotational acceleration is detected - preventing misfires during cold starts.
TLE4929CXVAM38AAHAMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 3-SIP Module
- Packaging:
- Cut Tape (CT)
- 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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Through Hole
- Supplier Device Package:
- PG-SSO-3-52
TLE4929CXVAM38AAHAMA1 FAQ
1.How can I place an order for TLE4929CXVAM38AAHAMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE4929CXVAM38AAHAMA1 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 TLE4929CXVAM38AAHAMA1 reliable?
The price and inventory of TLE4929CXVAM38AAHAMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4929CXVAM38AAHAMA1 is usually 5 days.
3.What payment methods are accepted for TLE4929CXVAM38AAHAMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4929CXVAM38AAHAMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE4929CXVAM38AAHAMA1?
TLE4929CXVAM38AAHAMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE4929CXVAM38AAHAMA1 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 TLE4929CXVAM38AAHAMA1?
For technical support, including TLE4929CXVAM38AAHAMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4929CXVAM38AAHAMA1 requirements.
6.How does Aetrix verify that TLE4929CXVAM38AAHAMA1 is sourced from the original manufacturer or authorized distributors?
All TLE4929CXVAM38AAHAMA1 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 TLE4929CXVAM38AAHAMA1 meets industry standards.
7.What is the process for return or replacement of TLE4929CXVAM38AAHAMA1?
All TLE4929CXVAM38AAHAMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4929CXVAM38AAHAMA1, 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 TLE4929CXVAM38AAHAMA1 part is unused and in its original packaging.
Return procedure for TLE4929CXVAM38AAHAMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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