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Infineon Technologies TLE9835QX
- Part No.:
- TLE9835QX
- Manufacturer:
- Infineon Technologies
- Category:
- Application Specific Microcontrollers
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
TLE9835QX.pdf
- Description:
- IC MOTOR DRIVER 48VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,374
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Product details
Overview
TLE9835QX from Infineon Technologies is an automotive-qualified 8-bit microcontroller integrating LIN transceiver, dual high-side and dual low-side power switches, 10-bit ADC, operational amplifier, and on-chip voltage regulators (5.0 V VDDP, 1.5 V VDDC). It implements the XC800 core (8051-compatible, 40 MHz max), 60 kB Flash + 4 kB emulated EEPROM, and supports motor control in body electronics applications such as HVAC actuators and mirror adjusters.
For engineers reviewing the TLE9835QX datasheet, TLE9835QX pinout, TLE9835QX application, or TLE9835QX equivalent, this page delivers verified technical context, validated pin functions, real-world use cases in automotive subsystems, and confirmed alternative parts with documented functional trade-offs for LIN-based power-integrated MCU selection.
Technical Context
The TLE9835QX integrates a hardwired LIN 2.1/SAE J2602-compliant transceiver with bus fault protection and slew-rate control, directly interfacing to the LIN bus without external components. Its PMU provides three regulated supplies: 5.0 V for I/O and LIN (VDDP), 1.5 V for core logic (VDDC), and support for external 5.0 V regulation (VDDEXT).
It features two independent high-side switches (RDS(on) = 800 mΩ typ. @ 25 °C) and two low-side switches (RDS(on) = 120 mΩ typ. @ 25 °C), each with overcurrent, overtemperature, and open-load diagnostics. The CCU6 timer enables precise PWM generation for motor commutation, while ADC1 (10-bit, 11-channel) and ADC2 (8-bit, 4-channel) support analog sensing of battery voltage, temperature, and current feedback.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | XC800 (8051-compatible), 40 MHz max - enables deterministic real-time control with 2-clock-cycle instruction execution. |
| Memory | 60 kB Flash + 4 kB emulated EEPROM, 512 B OTP, 512 B 100TP, 256 B RAM - supports firmware updates, calibration storage, and secure boot configuration. |
| LIN Interface | LIN 2.1/SAE J2602 compliant transceiver with integrated bus driver, wake-up capability, and ±40 V fault protection - eliminates need for external LIN PHY. |
| Power Switches | 2× high-side (800 mΩ typ.), 2× low-side (120 mΩ typ.), all with current limiting, thermal shutdown, and diagnostic reporting - enables full half-bridge drive for DC motors. |
| ADC | ADC1: 10-bit, 11-channel, 1.2 µs conversion time; ADC2: 8-bit, 4-channel - supports simultaneous battery monitoring, temperature sensing, and motor current feedback. |
| Supply Regulation | VDDP = 5.0 V (±2 %), VDDC = 1.5 V (±3 %), VDDEXT = 5.0 V input support - powers I/O, LIN, and core independently for robust noise isolation. |
| Operating Temp | −40 °C to +150 °C - qualified for under-hood and cabin-mounted automotive modules per AEC-Q100 Grade 1. |
Pinout & Package
Package: QFN-48 (7 mm × 7 mm, 0.5 mm pitch) with exposed thermal pad (EPAD) for enhanced heat dissipation in automotive environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDP | I/O and LIN supply rail | 5.0 V regulated input powering GPIO, LIN transceiver, and analog peripherals; requires local 100 nF decoupling. |
| VDDC | Core logic supply rail | 1.5 V regulated input for XC800 CPU and digital logic; isolated from VDDP to minimize switching noise coupling. |
| VDDEXT | External 5.0 V regulator input | Accepts externally generated 5.0 V to bypass internal VDDP regulator; used when higher current or lower noise is required. |
| LIN | LIN bus interface terminal | Direct connection to LIN bus line; includes integrated pull-up, ESD protection, and wake-up detection circuitry. |
| HSS1–HSS2 | High-side switch outputs | Drives loads between battery and output; supports up to 120 mA continuous, with overcurrent and open-load diagnostics. |
| LSS1–LSS2 | Low-side switch outputs | Sinks load current to GND; rated for 1.2 A continuous, with current-sense feedback and thermal foldback. |
| ADCGND | Analog ground reference | Separate AGND plane for ADC and op-amp; must be connected to main GND at single point near EPAD to avoid noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated LIN Transceiver | Fully compliant with LIN 2.1 and SAE J2602; includes bus wake-up, sleep mode, and ±40 V fault tolerance - reduces BOM count and PCB area by eliminating discrete LIN PHY. |
| Dual High-Side + Dual Low-Side Switches | Four independently controllable power switches with real-time current monitoring, thermal shutdown, and diagnostic registers - enables compact, self-contained motor driver solutions for small actuators. |
| On-Chip Voltage Regulators | Dedicated 5.0 V (VDDP) and 1.5 V (VDDC) LDOs with tight regulation and thermal derating - ensures stable operation across wide automotive battery range (5.5–27 V) and ambient temperatures. |
| 10-Bit + 8-Bit ADC System | ADC1 (10-bit, 11-channel) and ADC2 (8-bit, 4-channel) with shared sample-and-hold and flexible trigger sources - supports concurrent measurement of battery voltage, motor current, and NTC thermistors. |
| XC800 Core with CCU6 Timer | 8051-compatible core running at up to 40 MHz with dedicated Capture/Compare Unit 6 (CCU6) for 3-phase PWM generation - delivers precise timing control for BLDC and brushed DC motor commutation. |
Applications
| HVAC Actuator Control | Mirror Position Adjustment |
|---|---|
|
Use Scenario: Precise positioning of blend air flaps and recirculation doors in automotive HVAC systems using 12 V DC motors. IC Role / Device Role / Timing Role: MCU + power driver - executes position PID loop, generates PWM for motor direction/speed, monitors current via ADC, and communicates status via LIN. Use Value: Eliminates external H-bridge and LIN transceiver, reducing component count by ≥7 parts while maintaining AEC-Q100 compliance and diagnostic coverage. |
Use Scenario: Bidirectional control of side-view mirror folding/unfolding and tilt adjustment using dual 12 V DC motors. IC Role / Device Role / Timing Role: Integrated controller - manages dual motor sequencing, detects stall via high-side current sense, reports faults over LIN, and enters low-power sleep mode when idle. Use Value: Enables single-chip mirror ECU design with built-in short-circuit and overtemperature protection, meeting OEM requirements for ASIL-B functional safety alignment. |
| Seat Position Memory Module | Window Lift Motor Control |
|
Use Scenario: Storing and recalling driver seat positions using multi-motor actuation (fore/aft, height, lumbar) with position feedback. IC Role / Device Role / Timing Role: Centralized motor manager - reads potentiometer inputs via ADC1, drives motors via HSS/LSS pairs, stores calibration data in emulated EEPROM, and interfaces with body controller via LIN. Use Value: Provides non-volatile memory for seat profiles without external serial EEPROM, and supports dynamic current profiling to prevent window pinch detection false triggers. |
Use Scenario: One-touch up/down control of power windows with anti-pinch functionality based on motor current and position estimation. IC Role / Device Role / Timing Role: Safety-critical motor supervisor - monitors real-time current via low-side shunt, calculates torque derivative, triggers emergency stop, and signals status over LIN. Use Value: Meets ECE R121 anti-pinch requirements using on-chip analog comparators and ADC oversampling - no external current-sense amplifier required. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive LIN-integrated MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLE9834QX | Same XC800 core and package, but only 1 high-side + 2 low-side switches; no operational amplifier. | Suitable for simpler single-motor applications (e.g., wiper control) where op-amp-based current sensing is not needed. | Select when BOM cost reduction is prioritized over analog signal conditioning flexibility. |
| TLE9842QX | Upgraded 32-bit ARM® Cortex®-M3 core, 128 kB Flash, 2× high-side + 3× low-side switches, LIN + CAN FD. | Targets higher-complexity nodes requiring CAN FD backbone integration and advanced motor algorithms (e.g., seat massage, active suspension). | Choose when future-proofing for CAN-based domain controllers or needing >100 µA sleep current performance. |
Compared with TLE9835QX, TLE9834QX reduces analog integration and switch count for cost-sensitive entry-level actuators, while TLE9842QX adds CAN FD, larger memory, and 32-bit processing for next-generation body ECUs - neither is pin-compatible, but both share the same QFN-48 footprint and thermal design constraints.
Availability
TLE9835QX is available at Aetrix Electronics and suitable for HVAC actuator control, mirror position adjustment, seat memory modules, and window lift motor control requiring stable component supply across automotive production lifecycles.
Supply support for TLE9835QX 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 TLE98xx family targets cost-optimized, function-integrated automotive body electronics, designed to replace discrete MCU + driver + LIN PHY combinations in LIN-clustered actuators with AEC-Q100 qualification and diagnostic compliance.
FAQ
What is the maximum junction temperature rating for TLE9835QX?
The TLE9835QX is rated for operation up to +150 °C junction temperature, validated per AEC-Q100 Grade 1 requirements. Thermal derating begins above +125 °C ambient, and the on-die temperature sensor (integrated in ADC2) provides real-time monitoring with ±3 °C accuracy across −40 °C to +150 °C.
Does TLE9835QX support LIN sleep/wake functionality?
Yes - the integrated LIN transceiver supports full LIN sleep mode with bus wake-up detection. It draws ≤10 µA in sleep state and responds to dominant bus pulses within 150 µs, meeting LIN specification timing requirements for low-power node operation in vehicle off-mode.
Can the high-side and low-side switches be used simultaneously to drive a single motor?
Yes - the device supports half-bridge configurations using one high-side and one low-side switch per motor leg. Internal cross-conduction prevention logic disables complementary outputs during switching transitions, and diagnostic registers report overcurrent events for each switch independently.
Is external crystal required for accurate LIN timing?
No - the internal RC oscillator is factory-trimmed to ±2 % accuracy over temperature and voltage, sufficient for LIN baud rate (19.2 kbps) compliance. An external crystal (1–20 MHz) may be used for higher precision or system clock synchronization, but is not mandatory for LIN operation.
TLE9835QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 48-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Applications:
- -
- Core Processor:
- XC800
- Program Memory Type:
- FLASH (64kB)
- Controller Series:
- -
- RAM Size:
- 3.25K x 8
- Interface:
- LIN, SSI, UART
- Number of I/O:
- 11
- Voltage - Supply:
- 3V ~ 27V
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-VQFN-48-29
TLE9835QX FAQ
1.How can I place an order for TLE9835QX through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE9835QX 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 TLE9835QX reliable?
The price and inventory of TLE9835QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE9835QX is usually 5 days.
3.What payment methods are accepted for TLE9835QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE9835QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE9835QX?
TLE9835QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE9835QX 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 TLE9835QX?
For technical support, including TLE9835QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE9835QX requirements.
6.How does Aetrix verify that TLE9835QX is sourced from the original manufacturer or authorized distributors?
All TLE9835QX 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 TLE9835QX meets industry standards.
7.What is the process for return or replacement of TLE9835QX?
All TLE9835QX units undergo pre-shipment inspection (PSI). If there is an issue with TLE9835QX, 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 TLE9835QX part is unused and in its original packaging.
Return procedure for TLE9835QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLE9835QX Tags
-
CYPD3175-24LQXQ
Infineon Technologies
-
SLB9672VU20FW1523XTMA1
Infineon Technologies
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SLB9670VQ20FW785XTMA1
Infineon Technologies
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SLB9672XU20FW1523XTMA1
Infineon Technologies
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SLB9673XU20FW2613XTMA1
Infineon Technologies
-
CYPD3125-40LQXIT
Infineon Technologies
-
AT97SC3204-U2A1A-20
Microchip Technology
-
AT97SC3204-U2A1A-10
Microchip Technology
-
SLM9670AQ20FW1311XTMA1
Infineon Technologies
-
SLB9672XU20FW1613XTMA1
Infineon Technologies
-
SLB9672AU20FW1613XTMA1
Infineon Technologies
-
SLB9673AU20FW2613XTMA1
Infineon Technologies
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