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Infineon Technologies TLE9471ESV33XUMA1
- Part No.:
- TLE9471ESV33XUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Power Management - Specialized
- Package:
- 24-TSSOP (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
TLE9471ESV33XUMA1.pdf
- Description:
- IC SYST BASIS CHIP TSDSO24-1
- Quantity:
- Payment:
- Shipping:
Inventory:5,998
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Product details
Overview
TLE9471ESV33XUMA1 from Infineon is a monolithic System Basis Chip (SBC) for automotive CAN FD networks, integrating a 3.3 V/500 mA buck regulator, 5 V/100 mA LDO, HS-CAN FD transceiver (up to 5 Mbit/s), high-voltage GPIO, and configurable watchdog. It serves as main MCU supply and bus interface in battery-connected ECUs requiring ultra-low quiescent current (≤20 µA in Sleep Mode) and cyclic wake/sense capability.
For engineers reviewing the TLE9471ESV33XUMA1 datasheet, TLE9471ESV33XUMA1 pinout, TLE9471ESV33XUMA1 application, or TLE9471ESV33XUMA1 equivalent, key selection criteria include CAN FD compliance per ISO 11898-2:2016, spread-spectrum-enabled EMC optimization, AEC-Q100 qualification, and software compatibility with TLE926x/TLE927x families.
Technical Context
The device implements a hierarchical state machine with five operational modes (Normal, Stop, Sleep, Restart, Fail-Safe), each supporting periodic Cyclic Wake and Cyclic Sense via internal timer-enabling deterministic low-power monitoring without MCU intervention. Wake sources include CAN message detection, bi-level HV wake input, and SPI-triggered events.
Its dual-regulator architecture isolates critical MCU supply (3.3 V buck with spread-spectrum modulation) from sensor/peripheral rails (5 V LDO with short-to-battery protection), while the integrated HS-CAN FD transceiver supports Partial Networking and multiple bus states (Normal, Receive-Only, Wake Capable) with TXD timeout and dominant clamping.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 4.5 V to 40 V - supports cold-crank (4.5 V) and load-dump (40 V) conditions in 12 V automotive systems. |
| Buck Regulator Output | 3.3 V ±2%, 500 mA - powers core microcontroller with integrated spread-spectrum modulation for <±10 dB EMC reduction. |
| LDO Regulator Output | 5 V ±3%, 100 mA - supplies off-board sensors with short-to-battery protection and thermal shutdown. |
| CAN FD Data Rate | Up to 5 Mbit/s - compliant with ISO 11898-2:2016 and SAE J2284-5, enabling high-bandwidth diagnostics and firmware updates. |
| Quiescent Current (Sleep) | ≤20 µA - enables permanent battery connection in always-on modules like HVAC or seat control without excessive drain. |
| Watchdog Type | Configurable timeout/window watchdog - provides fail-safe reset with programmable window timing via SPI register access. |
| Operating Temperature | −40 °C to +150 °C - qualified per AEC-Q100 Grade 0 for under-hood and transmission ECU placement. |
Pinout & Package
Package: PG-TSDSO-24-1 (150 mil) with exposed thermal pad (EP) for enhanced heat dissipation in automotive under-hood environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VBAT | Main battery input | 4.5–40 V supply rail with overvoltage and reverse-polarity protection via integrated charge pump. |
| VDD | Buck regulator output | 3.3 V regulated output for MCU core logic; includes undervoltage lockout and reset generation. |
| VIO | LDO regulator output | 5 V regulated output for sensors/I/O; features short-to-battery protection and thermal foldback. |
| CANH / CANL | CAN FD differential bus interface | High-speed physical layer compliant with ISO 11898-2; supports wake-up in all bus states including Receive-Only. |
| WAKE | High-voltage wake input | Bi-level sensitive input (1.5 V/3.5 V thresholds) for external wake events; configurable as voltage monitor or sense input. |
| GPIO | General-purpose high-voltage I/O | Configurable as Fail Output, Wake Input, Low-Side switch (200 mA), or High-Side switch (100 mA) with overcurrent protection. |
| SPI_CS / MOSI / MISO / SCLK | 16-bit SPI interface | Full-duplex serial interface for configuration, status readback, and watchdog control; operates up to 10 MHz. |
| TEST | Development mode entry | Pull-down during power-up enters Development Mode: watchdog disabled, SPI accessible before initialization. |
Key Features
| Feature | Design Value |
|---|---|
| Cyclic Wake/Sense in all modes | Enables autonomous periodic wake-up and sensing without MCU involvement-reducing system-level power by eliminating polling loops. |
| Spread-spectrum modulation (buck & charge pump) | Reduces peak EMI emissions by >10 dB across 150 kHz–108 MHz range-simplifies board-level EMC filtering and layout. |
| Charge pump for reverse polarity protection | Eliminates need for external P-channel MOSFET or diode-based protection-reducing BOM count and PCB area in 12 V systems. |
| Configurable HV GPIO | Single pin supports Fail Output signaling, wake detection, or load switching-maximizing flexibility in space-constrained ECUs. |
| Software compatibility with TLE926x/TLE927x | Same register map and SPI command set-enables reuse of driver stacks and HAL layers across Infineon's SBC portfolio. |
Applications
| Seat Belt Pretensioner Control | HVAC ECU |
|---|---|
|
Use Scenario: Occupant safety module requiring always-on battery monitoring and rapid wake-on-event response. IC Role / Device Role / Timing Role: Main power supply (3.3 V buck) and CAN FD interface for airbag controller communication; Fail Output drives pyro initiator enable line. Use Value: ≤20 µA Sleep current extends backup battery life; Cyclic Sense verifies sensor readiness every 100 ms without MCU wake-up. |
Use Scenario: Climate control unit with permanent battery connection and multi-zone sensor network. IC Role / Device Role / Timing Role: Powers HVAC MCU (3.3 V) and analog sensors (5 V LDO); CAN FD handles compressor control and cabin temp feedback at 2 Mbit/s. Use Value: Spread-spectrum buck reduces conducted emissions on shared 3.3 V rail; HV GPIO acts as fail-safe blower motor cutoff. |
| Transmission Control Module | Light Control Unit (LCU) |
|
Use Scenario: Gear shifter and selector ECU operating in high-temperature under-hood environment. IC Role / Device Role / Timing Role: Provides robust 3.3 V supply and CAN FD link to TCU; WAKE pin monitors solenoid driver voltage for fault detection. Use Value: −40 °C to +150 °C rating ensures reliability near engine block; overtemperature protection disables regulators before silicon damage. |
Use Scenario: Front/rear ambient lighting node requiring low EMI and partial networking support. IC Role / Device Role / Timing Role: Supplies LED driver MCU and LIN transceiver bias; CAN FD enables synchronized dimming commands across vehicle zones. Use Value: CAN Partial Networking (-3ES variant family) allows selective node wake-up-cutting system-wide idle current by 40% vs full-network operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar System Basis Chip applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLE9471ES50XUMA1 | 5 V/500 mA buck regulator instead of 3.3 V; identical pinout and feature set. | Targets MCUs requiring 5 V core supply (e.g., legacy 8-bit controllers), not 3.3 V ARM Cortex-M devices. | Select when main processor requires 5 V rail and no external level-shifting is acceptable. |
| TLE9271-2QX | Includes LIN transceiver and additional 3.3 V LDO; lacks spread-spectrum modulation and Cyclic Sense capability. | Designed for mixed LIN/CAN gateways (e.g., body control modules), not CAN FD-only nodes. | Choose for cost-sensitive LIN+CAN hybrid applications where EMC headroom is less constrained. |
Compared with TLE9471ESV33XUMA1, the TLE9471ES50XUMA1 offers identical functionality at 5 V output-ideal for non-3.3 V MCUs-while the TLE9271-2QX trades CAN FD performance and advanced low-power features for LIN integration and lower gate count, better suited for body electronics than powertrain or safety-critical domains.
Availability
TLE9471ESV33XUMA1 is available at Aetrix Electronics and suitable for transmission control modules, HVAC ECUs, seat belt pretensioners, and light control units requiring stable component supply across automotive production lifecycles.
Supply support for TLE9471ESV33XUMA1 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 ICs, and security solutions, with global R&D and manufacturing infrastructure.
The TLE9471ESV33XUMA1 belongs to Infineon's Lite CAN SBC family-designed specifically for cost-optimized, high-reliability automotive ECUs needing integrated power, communication, and safety functions in a single PG-TSDSO-24 package.
FAQ
What is the maximum CAN FD data rate supported by TLE9471ESV33XUMA1?
The device supports CAN FD up to 5 Mbit/s, fully compliant with ISO 11898-2:2016 and SAE J2284-5. This enables high-speed firmware updates and real-time diagnostics in modern automotive networks, with built-in TXD timeout and bus dominant clamping to prevent bus lock-up during error conditions.
Does TLE9471ESV33XUMA1 support partial networking?
Yes-the TLE9471ESV33XUMA1 supports CAN Partial Networking in its -3ES variant family (e.g., TLE9471-3ESV33XUMA1). It allows selective wake-up of individual nodes via targeted remote frames, reducing overall network quiescent current without disabling the entire bus.
How does the spread-spectrum modulation improve EMC performance?
Integrated spread-spectrum modulation dithers the buck converter's switching frequency across a ±3% range, dispersing energy over a wider bandwidth. This lowers peak radiated emissions by ≥10 dB in the 150 kHz–30 MHz range-reducing need for ferrite beads and LC filters in ECU designs.
Can the GPIO pin be used as both a wake input and a fail output simultaneously?
No-the GPIO pin is functionally configurable via SPI register settings but operates in only one mode at a time: Fail Output, Wake Input, Low-Side Switch, or High-Side Switch. Its alternate assignment must be selected during initialization and cannot be dynamically reconfigured without resetting the SBC state machine.
TLE9471ESV33XUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- Lite SBC
- Package/Case:
- 24-TSSOP (0.154", 3.90mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- CAN Automotive
- Current - Supply:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-TSDSO-24-1
TLE9471ESV33XUMA1 FAQ
1.How can I place an order for TLE9471ESV33XUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE9471ESV33XUMA1 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 TLE9471ESV33XUMA1 reliable?
The price and inventory of TLE9471ESV33XUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE9471ESV33XUMA1 is usually 5 days.
3.What payment methods are accepted for TLE9471ESV33XUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE9471ESV33XUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE9471ESV33XUMA1?
TLE9471ESV33XUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE9471ESV33XUMA1 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 TLE9471ESV33XUMA1?
For technical support, including TLE9471ESV33XUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE9471ESV33XUMA1 requirements.
6.How does Aetrix verify that TLE9471ESV33XUMA1 is sourced from the original manufacturer or authorized distributors?
All TLE9471ESV33XUMA1 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 TLE9471ESV33XUMA1 meets industry standards.
7.What is the process for return or replacement of TLE9471ESV33XUMA1?
All TLE9471ESV33XUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE9471ESV33XUMA1, 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 TLE9471ESV33XUMA1 part is unused and in its original packaging.
Return procedure for TLE9471ESV33XUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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