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Infineon Technologies TLE9261BQXXUMA1
- Part No.:
- TLE9261BQXXUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Specialized
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
TLE9261BQXXUMA1.pdf
- Description:
- IC INTERFACE SPECIALIZED 48VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,584
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Product details
Overview
TLE9261BQXXUMA1 from Infineon Technologies is an automotive-qualified System Basis Chip (SBC) integrating dual LDO regulators (5 V/250 mA main + 5 V/100 mA auxiliary), a high-speed CAN FD transceiver (up to 5 Mbit/s), four high-side switches (7 Ω typ.), two HV GPIOs, three HV wake inputs, and 16-bit SPI diagnostics. It serves as a central power management and communication hub in body control modules requiring robust voltage regulation, wake-on-bus capability, and fail-safe supervision.
For engineers reviewing the TLE9261BQXXUMA1 datasheet, TLE9261BQXXUMA1 pinout, TLE9261BQXXUMA1 application, or TLE9261BQXXUMA1 equivalent, this device is selected for its integrated CAN FD interface, configurable external PNP regulator support, cyclic wake timing, and AEC-Q100 qualification - critical for gateways, closure modules, and HVAC subsystems demanding low-power sleep modes and deterministic reset behavior.
Technical Context
The TLE9261BQXXUMA1 implements a multi-state machine architecture with six operational modes (Normal, Stop, Sleep, Restart, Fail-Safe, Development), each governing regulator enablement, CAN transceiver state, HS-switch behavior, and wake-source sensitivity. Its supervision logic includes independent watchdog timeout, interrupt generation, and fail-safe outputs (FO1–FO3) tied to internal voltage monitors and thermal shutdown thresholds.
CAN FD operation supports Partial Networking via dedicated mode control bits in the SPI register map, while wake functionality combines three HV inputs (WK1–WK3), cyclic sense (programmable 1–255 ms intervals), and internal timer-based wake events - all configurable without host CPU intervention during deep sleep.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Main Regulator Output | 5 V ±2 %, 250 mA max - powers MCU core and local peripherals with tight load regulation across -40 °C to 150 °C junction temperature. |
| Auxiliary Regulator Output | 5 V ±2 %, 100 mA max - supplies isolated sensors or external logic with off-board usage protection against reverse battery and short-to-battery faults. |
| CAN FD Data Rate | Up to 5 Mbit/s - compliant with ISO 11898-2:2016 and SAE J2284, enabling high-bandwidth diagnostics and firmware updates in modern vehicle networks. |
| High-Side Switch RDS(on) | 7 Ω typ. at 25 °C - delivers controlled load driving for resistive/inductive actuators (e.g., door locks, HVAC valves) with integrated open-load detection. |
| Wake Input Voltage Range | 5.5 V to 28 V - accepts direct connection to 12 V/24 V vehicle battery rails for reliable wake event triggering without external level-shifting. |
| SPI Interface | 16-bit, full-duplex, 3-wire - enables real-time configuration of all regulators, CAN modes, watchdog timeouts, and fault masking registers. |
| Operating Temperature | -40 °C to 150 °C - qualified per AEC-Q100 Grade 0, supporting under-hood and cabin-mounted applications with no derating required. |
Pinout & Package
Package: PG-VQFN-48 (7 mm × 7 mm, 0.5 mm pitch, exposed thermal pad).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Main supply input | Connects to 5–28 V battery rail; powers internal regulators and CAN transceiver; requires 10 µF ceramic decoupling. |
| VREG1 | Main regulator output | 5 V/250 mA regulated output; feeds MCU core supply; monitored for undervoltage lockout (UVLO) at 4.5 V. |
| VREG2 | Auxiliary regulator output | 5 V/100 mA output; isolated from VREG1; protected against short-to-battery and reverse polarity. |
| HS1–HS4 | High-side switch outputs | Four independently controllable N-channel drivers; each supports PWM dimming and open-load detection via SPI-read status bits. |
| WK1–WK3 | High-voltage wake inputs | Three 28 V-tolerant inputs accepting wake pulses directly from battery; configurable as edge-triggered or level-sensitive via SPI. |
| CANH / CANL | CAN FD differential bus interface | Direct connection to vehicle CAN FD bus; supports dominant clamping and TXD time-out to prevent bus lock-up. |
| MOSI / MISO / SCLK / CSN | SPI interface signals | Standard 3-wire SPI with chip select; operates up to 10 MHz; used for configuration, diagnostics, and fault logging. |
Key Features
| Feature | Design Value |
|---|---|
| Configurable External Regulator Support | External PNP transistor driver (via EXT_REG pin) enables 5 V/3.3 V off-board regulation with load sharing or standalone operation - eliminates need for secondary PMIC in multi-rail systems. |
| Cyclic Wake with Programmable Interval | Internal timer generates wake events at user-defined intervals (1–255 ms) without host CPU involvement - essential for periodic sensor polling in ultra-low-power sleep modes. |
| Fail-Safe Outputs (FO1–FO3) | Dedicated open-drain outputs assert on critical faults (overtemperature, UVLO, watchdog timeout); FO2/FO3 double as general-purpose I/Os when not in fail-safe mode. |
| Partial Networking CAN FD Mode | Transceiver enters low-power receive-only mode while maintaining network presence - reduces system current to <50 µA during selective node wake-up scenarios. |
| Integrated Supervision Logic | Independent watchdog with windowed timeout, reset generator with programmable delay (0–255 ms), and interrupt output for asynchronous fault notification to host MCU. |
Applications
| Body Control Module (BCM) | Passive Keyless Entry (PKE) |
|---|---|
Use Scenario: Centralized power and communication management for door modules, lighting, and window lifters in modern vehicle BCMs. IC Role / Device Role / Timing Role: SBC provides regulated 5 V supplies, drives high-side loads (e.g., door lock solenoids), and handles CAN FD messaging with partial networking for selective wake-up. Use Value: Reduces BOM count by integrating regulators, CAN transceiver, and four HS switches - simplifies layout and improves ASIL-B compliance through built-in supervision. |
Use Scenario: Low-power remote key fob receiver module detecting valid RF commands and waking vehicle ECU via wake inputs. IC Role / Device Role / Timing Role: Acts as wake controller and power supervisor; WK1–WK3 monitor RF receiver output; cyclic sense checks for command timeout; VREG2 powers RF IC. Use Value: Enables sub-10 µA sleep current with deterministic wake latency (<100 µs) and fault-aware reset sequencing - critical for battery lifetime in key fobs. |
| HVAC Control Unit | Trailer Module Gateway |
Use Scenario: Climate control unit managing blower motors, valve actuators, and temperature sensors across multiple vehicle zones. IC Role / Device Role / Timing Role: Supplies 5 V to MCU and sensors; HS1–HS4 drive HVAC dampers and heater relays; CAN FD transmits zone-specific setpoints and diagnostics. Use Value: Integrated open-load detection prevents false fault reporting on high-inductance damper motors; auxiliary regulator isolates sensor supply from motor switching noise. |
Use Scenario: Trailer interface module translating vehicle CAN FD messages to trailer-specific protocols (e.g., J1939, LIN) while monitoring trailer battery and lamp status. IC Role / Device Role / Timing Role: Provides isolated 5 V supply for trailer microcontroller; HS switches control trailer lamps; CAN FD handles high-speed vehicle-trailer coordination. Use Value: High-voltage wake inputs (WK1–WK3) detect trailer connection/disconnection events directly from 24 V trailer battery - eliminates need for discrete voltage dividers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar System Basis Chip applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLE9262BQX | Same package and pinout; adds second CAN FD transceiver and removes one HS switch; higher integration for dual-bus gateways. | Required where dual-CAN FD domains (e.g., powertrain + body) must coexist without external bus arbitration. | Select when dual-CAN FD channels are mandatory; not drop-in compatible due to removed HS4 and added CAN2 pins. |
| MC33816 | Single CAN FD transceiver; only two HS switches; no cyclic wake timer; different SPI register map and fault reporting structure. | Suitable for cost-sensitive entry-level body modules with simpler wake requirements and lower channel count. | Choose for legacy NXP-based designs or where Infineon toolchain support is not required; revalidation needed for supervision timing and wake behavior. |
Compared with TLE9261BQXXUMA1, TLE9262BQX offers dual-CAN FD at the expense of one HS switch and increased complexity, while MC33816 reduces integration and diagnostic depth to meet basic SBC needs - making TLE9261BQXXUMA1 optimal for mid-tier body modules balancing feature density, AEC-Q100 robustness, and design reuse.
Availability
TLE9261BQXXUMA1 is available at Aetrix Electronics and suitable for Body Control Modules, Passive Keyless Entry systems, and HVAC control units requiring stable component supply, long-term automotive lifecycle support, and AEC-Q100-compliant performance.
Supply support for TLE9261BQXXUMA1 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 security solutions, with global manufacturing and automotive qualification infrastructure.
The OPTIREG™ SBC family targets automotive body electronics, delivering integrated power regulation, communication, and supervision in single-chip solutions for reduced system complexity and enhanced functional safety.
FAQ
What is the maximum allowable input voltage on the VCC pin?
The absolute maximum rating for VCC is 30 V, but the functional operating range is 5 V to 28 V per the datasheet's "Functional Range" section. Operation above 28 V risks permanent damage even if transient, and below 5 V disables regulator startup. Designers must ensure transient suppression (e.g., TVS diode) meets ISO 7637-2 Pulse 5a requirements.
Can the auxiliary regulator (VREG2) be used to power external CAN transceivers?
Yes - VREG2 delivers 5 V at up to 100 mA with short-to-battery protection and reverse-polarity immunity, making it suitable for powering external CAN transceivers or isolated digital isolators. However, its output impedance and load-step response differ from VREG1; verify stability with the target transceiver's capacitive load per Figure 23 in the datasheet.
How does the cyclic wake feature interact with CAN FD partial networking mode?
Cyclic wake operates independently of CAN FD mode: the internal timer triggers wake events regardless of whether the transceiver is in Normal, Receive-Only, or OFF mode. During Partial Networking, the device wakes via cyclic timer, asserts wake flag, and transitions CAN to Normal mode only upon SPI command - enabling precise control over bus activation timing.
Is the TLE9261BQXXUMA1 pin-compatible with earlier TLE9261 variants like TLE9261BQX?
Yes - TLE9261BQXXUMA1 is the tape-and-reel packaged version of the TLE9261BQX die in PG-VQFN-48; pin assignment, electrical characteristics, and thermal behavior are identical. The "UMA1" suffix denotes packaging and reel orientation per Infineon's ordering nomenclature, not functional revision.
TLE9261BQXXUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 48-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Applications:
- -
- Interface:
- SPI
- Voltage - Supply:
- 28V
- Supplier Device Package:
- PG-VQFN-48-31
- Grade:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount
TLE9261BQXXUMA1 FAQ
1.How can I place an order for TLE9261BQXXUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE9261BQXXUMA1 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 TLE9261BQXXUMA1 reliable?
The price and inventory of TLE9261BQXXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE9261BQXXUMA1 is usually 5 days.
3.What payment methods are accepted for TLE9261BQXXUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE9261BQXXUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE9261BQXXUMA1?
TLE9261BQXXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE9261BQXXUMA1 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 TLE9261BQXXUMA1?
For technical support, including TLE9261BQXXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE9261BQXXUMA1 requirements.
6.How does Aetrix verify that TLE9261BQXXUMA1 is sourced from the original manufacturer or authorized distributors?
All TLE9261BQXXUMA1 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 TLE9261BQXXUMA1 meets industry standards.
7.What is the process for return or replacement of TLE9261BQXXUMA1?
All TLE9261BQXXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE9261BQXXUMA1, 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 TLE9261BQXXUMA1 part is unused and in its original packaging.
Return procedure for TLE9261BQXXUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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