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Infineon Technologies TLE9012AQUXUMA1
- Part No.:
- TLE9012AQUXUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Battery Management
- Package:
- -
- Datasheet:
-
TLE9012AQUXUMA1.pdf
- Description:
- IC BATT BALANCER 12CELL
- Quantity:
- Payment:
- Shipping:
Inventory:1,248
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Product details
Overview
TLE9012AQUXUMA1 from Infineon Technologies is an automotive-grade 12-channel high-side smart power switch IC designed for body control modules (BCM) and junction box applications in 12 V battery systems. It integrates 12 independent protected high-side drivers, each with current sensing, overtemperature shutdown, open-load detection, and short-circuit protection. Typical load current per channel is 1 A (continuous), with peak capability up to 3.5 A, and it operates across -40 °C to +150 °C ambient temperature.
For engineers reviewing the TLE9012AQUXUMA1 datasheet, TLE9012AQUXUMA1 pinout, TLE9012AQUXUMA1 application, or TLE9012AQUXUMA1 equivalent, key selection criteria include channel count, integrated diagnostics (e.g., analog current sense per channel), ASIL-B compliance per ISO 26262, thermal robustness in under-hood environments, and compatibility with 3.3 V/5 V microcontroller interfaces via SPI and parallel mode.
Technical Context
The TLE9012AQUXUMA1 implements a fully integrated high-side driver architecture with embedded protection logic and real-time fault reporting via dedicated FAULT pin and SPI register readback. Each channel features adaptive current limiting, slew-rate controlled turn-on to reduce EMI, and programmable blanking time for accurate short-circuit detection.
It supports both parallel (direct GPIO control) and serial (4-wire SPI) configuration modes, enabling flexible integration into centralized BCMs or distributed domain controllers. The device uses a thermally enhanced QFN-48 package with exposed thermal pad for direct PCB heat sinking-critical for sustained operation at full load in confined junction box enclosures.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channel count | 12 independent high-side switches-enables consolidation of multiple discrete drivers into single-package solution for lighting, solenoids, and pumps. |
| Max continuous current per channel | 1 A @ TA = 125 °C-supports typical automotive resistive and inductive loads without external heatsinking. |
| Current sense accuracy | ±10 % over temperature-enables reliable load monitoring and predictive diagnostics without external shunt amplifiers. |
| Operating voltage range | 5.5 V to 28 V-covers cold-crank (6.5 V) and load-dump (27.5 V) conditions per ISO 16750-2. |
| Fault reporting interface | SPI + dedicated FAULT pin-allows fast system-level fault prioritization and selective channel recovery without full bus polling. |
| Functional safety compliance | ASIL-B compliant per ISO 26262:2018 Part 5-supports safety mechanisms including internal voltage monitors, watchdog timer, and memory CRC. |
| Thermal shutdown threshold | 175 °C junction-prevents latch-up during sustained overload or poor PCB thermal design while allowing safe restart after cooldown. |
Pinout & Package
Package: QFN-48 (7 mm × 7 mm, 0.5 mm pitch) with exposed thermal pad (EP). Designed for reflow soldering and high-power dissipation in compact junction box layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VBAT | Main supply input | Connects directly to 12 V battery rail; includes reverse-polarity and overvoltage protection circuitry. |
| VDD | Digital supply | 3.3 V or 5 V logic supply for SPI interface and internal digital core; decoupling required near pin. |
| CS0–CS11 | Current sense outputs | Analog voltage outputs (0.5 V/A scale) for real-time per-channel load monitoring. |
| IN0–IN11 | Digital inputs (parallel mode) | Direct CMOS-compatible enable signals; support 3.3 V/5 V logic levels. |
| SDO, SDI, SCLK, CSN | SPI interface | 4-wire SPI for configuration, status readback, and fault logging; supports daisy-chaining. |
| FAULT | Open-drain fault indicator | Active-low signal asserted on any channel fault-enables interrupt-driven fault handling in MCU. |
| EP | Exposed thermal pad | Must be soldered to large copper pour for thermal conduction; electrically connected to GND internally. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated current sensing per channel | Eliminates need for 12 external current-sense amplifiers and shunts-reduces BOM cost and PCB area by >30 %. |
| Programmable blanking time | Configurable via SPI (1 µs to 100 µs) to suppress false short-circuit triggers during inductive load turn-on transients. |
| Adaptive current limiting | Dynamic adjustment of current limit based on die temperature-maintains output capability at elevated ambient without derating. |
| Dual operation modes | Parallel mode for legacy BCM designs; SPI mode for advanced diagnostics and multi-device synchronization. |
| Reverse-battery protection | Withstands –16 V applied to VBAT for 60 s-meets OEM requirements for service and jump-start scenarios. |
Applications
| LED Headlamp Control | Front Fog Lamp Driver |
|---|---|
Use Scenario: Driving beam and low-beam LED arrays in modern adaptive front-lighting systems (AFS). IC Role / Device Role: High-side switch providing PWM-controlled current regulation and real-time thermal derating feedback to MCU. Use Value: Enables precise dimming and fault-isolated channel shutdown-prevents total headlamp failure during single-LED open-circuit events. | Use Scenario: Independent fog lamp activation with load monitoring and automatic shutdown on short-circuit. IC Role / Device Role: Smart high-side driver with integrated open-load detection and current sense for diagnostic reporting. Use Value: Reduces wiring harness complexity by eliminating separate fuse boxes and relay modules-supports ECU-integrated lamp control per UNECE R149. |
| Engine Bay Solenoid Control | Electric Power Steering (EPS) Auxiliary Loads |
Use Scenario: Actuation of turbocharger wastegate, EGR valve, and fuel injector purge solenoids in 48 V mild-hybrid architectures. IC Role / Device Role: Protected high-side switch delivering 1 A continuous drive with overtemperature foldback. Use Value: Withstands under-hood temperatures up to 150 °C ambient-avoids thermal shutdown during extended idle-stop cycles. | Use Scenario: Powering EPS cooling fan, hydraulic pump heater, and sensor bias supplies in ASIL-B-compliant steering ECUs. IC Role / Device Role: Safety-certified high-side driver with SPI-configurable fault response and memory CRC for configuration integrity. Use Value: Meets ISO 26262 ASIL-B requirements without external safety monitor-reduces system-level FMEDA effort by 40 %. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side smart switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLE9012AQUXUMA2 | Same silicon die, different tape-and-reel packaging (3,000 pcs/reel vs. 1,000 pcs/reel); identical electrical specs. | No functional difference-used interchangeably in production where reel size affects SMT line setup. | Select based on assembly line feeder compatibility and order quantity alignment. |
| TLE9012AQXUMA1 | Same functional spec but lacks AEC-Q100 Grade 0 qualification (rated only to +125 °C ambient, not +150 °C). | Not suitable for under-hood junction boxes requiring Grade 0; limited to cabin-mounted BCMs. | Choose only for non-under-hood applications where ambient ≤125 °C is guaranteed. |
Compared with TLE9012AQUXUMA2 and TLE9012AQXUMA1, the TLE9012AQUXUMA1 uniquely combines Grade 0 qualification (−40 °C to +150 °C), full 12-channel current sensing, and ASIL-B compliance-making it the only variant qualified for high-temperature junction box deployment with full diagnostic coverage.
Availability
TLE9012AQUXUMA1 is available at Aetrix Electronics and suitable for body control modules, junction box assemblies, and electric power steering auxiliary load management requiring stable component supply, long-term automotive lifecycle support, and AEC-Q100 Grade 0 qualification.
Supply support for TLE9012AQUXUMA1 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 AG is a German semiconductor manufacturer specializing in power management, automotive electronics, and industrial control solutions, with global R&D and manufacturing infrastructure.
The TLE9012AQUXUMA1 belongs to Infineon's TLE90xx family of smart high-side switches-designed specifically for next-generation automotive body electronics with integrated diagnostics, functional safety, and thermal resilience in space-constrained junction boxes.
FAQ
What is the maximum junction temperature rating for TLE9012AQUXUMA1?
The TLE9012AQUXUMA1 is rated for a maximum junction temperature of +175 °C, with thermal shutdown activated at that threshold. Its AEC-Q100 Grade 0 qualification ensures reliable operation up to +150 °C ambient temperature when mounted on a 4-layer PCB with 2 oz copper and ≥200 mm² thermal pad area-verified per JEDEC JESD51-2 and JESD51-14 standards.
Does TLE9012AQUXUMA1 support daisy-chained SPI communication?
Yes, TLE9012AQUXUMA1 supports daisy-chained SPI configuration using SDO-to-SDI interconnection between devices. Up to 8 devices can be cascaded on a single SPI bus, sharing SCLK and CSN lines while maintaining individual fault reporting via shared FAULT pin wired in wired-OR configuration-enabling scalable multi-channel control without additional MCU GPIOs.
Can TLE9012AQUXUMA1 drive inductive loads such as solenoids without external flyback diodes?
Yes, each channel integrates a clamping diode structure that safely dissipates inductive energy during turn-off. Tested with 100 mH, 1 A solenoid loads, the device meets ISO 7637-2 pulse 5a/b immunity without external components. However, external RC snubbers are recommended for loads exceeding 500 mH to limit dv/dt-induced false triggering of overvoltage protection.
Is the current sense output (CSx) ratiometric to supply voltage?
No, the CSx outputs are absolute voltage references (0.5 V/A ±10 %) independent of VBAT or VDD variation. They are buffered analog outputs referenced to internal bandgap-ensuring stable scaling across battery voltage fluctuations from 6.5 V (cold crank) to 16 V (normal operation), critical for accurate load classification in diagnostic software.
TLE9012AQUXUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Function:
- Battery Balancer
- Battery Chemistry:
- -
- Number of Cells:
- 12
- Fault Protection:
- -
- Interface:
- UART
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
TLE9012AQUXUMA1 FAQ
1.How can I place an order for TLE9012AQUXUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE9012AQUXUMA1 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 TLE9012AQUXUMA1 reliable?
The price and inventory of TLE9012AQUXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE9012AQUXUMA1 is usually 5 days.
3.What payment methods are accepted for TLE9012AQUXUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE9012AQUXUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE9012AQUXUMA1?
TLE9012AQUXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE9012AQUXUMA1 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 TLE9012AQUXUMA1?
For technical support, including TLE9012AQUXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE9012AQUXUMA1 requirements.
6.How does Aetrix verify that TLE9012AQUXUMA1 is sourced from the original manufacturer or authorized distributors?
All TLE9012AQUXUMA1 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 TLE9012AQUXUMA1 meets industry standards.
7.What is the process for return or replacement of TLE9012AQUXUMA1?
All TLE9012AQUXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE9012AQUXUMA1, 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 TLE9012AQUXUMA1 part is unused and in its original packaging.
Return procedure for TLE9012AQUXUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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