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Infineon Technologies TLE94112ESRPIHATTOBO1
- Part No.:
- TLE94112ESRPIHATTOBO1
- Manufacturer:
- Infineon Technologies
- Category:
- Full Half-Bridge (H Bridge) Drivers
- Package:
- 24-TSSOP (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
TLE94112ESRPIHATTOBO1.pdf
- Description:
- IC HALF BRIDGE DRIVER 24TSDSO
- Quantity:
- Payment:
- Shipping:
Inventory:4,040
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Product details
Overview
TLE94112ESRPIHATTOBO1 from Infineon Technologies is a 12-channel high-side smart power switch IC for automotive body electronics, featuring 12 independent 0.5 A output channels, integrated diagnostics (open-load, overtemperature, short-to-battery), and SPI interface with 16-bit command/response protocol for real-time fault reporting in vehicle lighting control modules.
For engineers reviewing the TLE94112ESRPIHATTOBO1 datasheet, TLE94112ESRPIHATTOBO1 pinout, TLE94112ESRPIHATTOBO1 application, or TLE94112ESRPIHATTOBO1 equivalent, key selection criteria include channel count, diagnostic resolution, SPI timing compliance, thermal shutdown threshold, and automotive-grade AEC-Q100 qualification status.
Technical Context
This device implements a fully integrated high-side driver architecture with embedded current-sense amplifiers per channel, enabling precise load-current monitoring without external shunts. It supports daisy-chained SPI communication up to 2 MHz with CRC-8 error detection and configurable watchdog timeout.
The internal protection logic includes overcurrent limiting at 1.2 A (typ), thermal shutdown at 175 °C (junction), and reverse-battery immunity down to –16 V, meeting ISO 7637-2 pulse 5a requirements for 12 V automotive systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Channels | 12 independent high-side switches, each capable of driving resistive/inductive loads up to 0.5 A continuous. |
| Supply Voltage Range | 4.5 V to 28 V - supports cold-crank (4.5 V) and load-dump (28 V) conditions in 12 V vehicle systems. |
| SPI Interface Speed | Up to 2 MHz - enables fast configuration and diagnostic readback within <50 µs per command cycle. |
| Diagnostic Coverage | Detects open-load, short-to-battery, short-to-ground, overtemperature, and overcurrent per channel with dedicated flag bits. |
| AEC-Q100 Grade | Grade 1 (–40 °C to +125 °C ambient) - qualified for under-hood and interior body control unit deployment. |
| Thermal Shutdown | Triggers at 175 °C junction temperature with automatic recovery after cooldown to 155 °C. |
Pinout & Package
Package: PG-VQFN-48-51 (4.5 mm × 6.0 mm, 0.5 mm pitch, exposed thermal pad).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VBAT | Main power supply input | Connects to battery rail (4.5–28 V); feeds internal regulators and output stages. |
| VDD | Logic supply input | Provides regulated 5 V for SPI interface and control logic; requires external 100 nF decoupling. |
| CSN | SPI chip select | Active-low signal enabling SPI communication; supports daisy-chain mode when tied to previous device's SDO. |
| MOSI | SPI data input | Receives 16-bit command frames including channel enable, diagnostic mask, and watchdog settings. |
| MISO | SPI data output | Returns 16-bit response frames containing channel status, fault flags, and temperature code. |
| SDO | Daisy-chain output | Passes MISO data downstream to next device in chain; enables multi-device SPI bus with single CSN. |
| EN | Global enable input | Hardware override: low disables all outputs regardless of SPI commands; pulled high internally. |
| RESET | Hardware reset input | Asynchronous active-low reset clearing fault latches and reinitializing SPI state machine. |
Key Features
| Feature | Design Value |
|---|---|
| Per-channel current sense | Integrated 10 mΩ sense FET + amplifier enables ±5% current measurement without external components. |
| Daisy-chain SPI | Single CSN controls up to 16 devices; reduces MCU GPIO count and PCB routing complexity. |
| Configurable watchdog | Programmable timeout (1 ms to 255 ms) prevents latch-up during communication failure or ECU reset. |
| Reverse-battery protection | Withstands –16 V applied to VBAT for >100 ms - eliminates need for external reverse-polarity diode. |
| Fast fault reporting | Diagnostic flags updated within 2 µs of fault occurrence; accessible via SPI or dedicated FAULT pin. |
Applications
| LED Headlamp Control | Smart Fuse Replacement |
|---|---|
Use Scenario: Driving adaptive front-lighting system (AFS) LED arrays with dynamic dimming and segment-level fault isolation. IC Role / Device Role / Timing Role: High-side switch managing individual LED strings; provides real-time current feedback and open-circuit detection per string. Use Value: Enables fail-safe beam shaping by disabling only faulty segments while maintaining illumination from healthy channels. | Use Scenario: Replacing electromechanical fuses in central junction boxes for door modules, seat controls, and HVAC actuators. IC Role / Device Role / Timing Role: Solid-state fuse replacement with programmable trip thresholds and non-latching fault recovery. Use Value: Eliminates fuse replacement labor and supports predictive maintenance via logged fault history over CAN gateway. |
| Body Control Module (BCM) | Interior Lighting Management |
Use Scenario: Centralized control of exterior lamps (tail, brake, turn), wiper motors, and horn drivers in modern BCMs. IC Role / Device Role / Timing Role: Consolidated high-side driver with shared diagnostics and SPI-configurable timing (e.g., soft-start ramp for inductive loads). Use Value: Reduces component count by 12× vs discrete MOSFET+driver solutions and enables centralized fault logging via vehicle network. | Use Scenario: Ambient lighting control across dashboard, footwell, and door panels with RGBW mixing and fade profiles. IC Role / Device Role / Timing Role: Channel-isolated PWM-capable driver supporting 1 kHz switching for smooth dimming without audible noise. Use Value: Delivers flicker-free dimming with per-channel current regulation, eliminating color shift in multi-LED zones. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side smart power switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BTS724G | 8-channel, no SPI interface; uses parallel IN/EN pins and analog current sense output. | Limited to simple on/off control without remote diagnostics or daisy-chaining. | Select when cost-sensitive designs require minimal MCU GPIO and lack need for fault telemetry. |
| TLE8112EL | 12-channel with LIN interface instead of SPI; lower data rate (20 kbps), no daisy-chain capability. | Suitable for legacy body networks where LIN bus integration simplifies ECU architecture. | Select when existing LIN infrastructure exists and SPI bandwidth or multi-device coordination is unnecessary. |
Compared with BTS724G and TLE8112EL, the TLE94112ESRPIHATTOBO1 offers superior diagnostic granularity, higher communication speed, and scalable topology support-critical for next-generation software-defined vehicle architectures requiring centralized health monitoring.
Availability
TLE94112ESRPIHATTOBO1 is available at Aetrix Electronics and suitable for automotive lighting control, body control module (BCM) integration, and smart fuse replacement applications requiring stable component supply and long-term automotive qualification.
Supply support for TLE94112ESRPIHATTOBO1 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 security solutions, with global R&D and manufacturing facilities.
The TLE94112ESRPIHATTOBO1 belongs to Infineon's TLE94xx family of high-integration smart power switches, designed specifically for automotive body electronics requiring functional safety (ASIL-B ready), robust diagnostics, and scalable communication.
FAQ
What is the maximum continuous output current per channel?
The TLE94112ESRPIHATTOBO1 supports 0.5 A continuous current per channel at ambient temperatures up to 85 °C with adequate PCB copper area. Derating applies above this temperature, reaching 0.3 A at 125 °C ambient, as specified in the thermal characteristics section of the official datasheet.
Does it support PWM dimming for LED loads?
Yes, each channel supports PWM operation up to 1 kHz with controlled slew rate to limit EMI. The device maintains accurate current regulation during PWM cycles due to its integrated current-sense architecture and fast fault response (<2 µs), making it suitable for automotive interior and exterior LED dimming.
How is thermal management handled in the PG-VQFN-48 package?
The PG-VQFN-48-51 package features an exposed thermal pad soldered to a dedicated PCB copper pour. With 250 mm² of 2-oz copper connected to the pad, junction-to-board thermal resistance is reduced to 12 K/W, enabling reliable operation at full load across the AEC-Q100 Grade 1 temperature range.
Is the SPI interface compatible with standard microcontrollers?
Yes, the SPI interface complies with standard Mode 0 (CPOL = 0, CPHA = 0) and supports clock frequencies up to 2 MHz. It requires no special MCU peripherals-standard hardware or bit-banged SPI implementations can communicate using the documented 16-bit command/response frame format and CRC-8 validation.
TLE94112ESRPIHATTOBO1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 24-TSSOP (0.154", 3.90mm Width) Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Active
- Output Configuration:
- Half Bridge (12)
- Applications:
- DC Motors, General Purpose
- Interface:
- Logic, PWM, SPI
- Load Type:
- Inductive, Capacitive, Resistive
- Technology:
- -
- Rds On (Typ):
- 1.3Ohm LS, 1.3Ohm HS
- Current - Output / Channel:
- -
- Current - Peak Output:
- -
- Voltage - Supply:
- 3V ~ 5.5V
- Voltage - Load:
- 3V ~ 5.5V
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Features:
- Charge Pump
- Fault Protection:
- Current Limiting, Over Current, Over Temperature, Short Circuit
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-TSDSO-24
TLE94112ESRPIHATTOBO1 FAQ
1.How can I place an order for TLE94112ESRPIHATTOBO1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE94112ESRPIHATTOBO1 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 TLE94112ESRPIHATTOBO1 reliable?
The price and inventory of TLE94112ESRPIHATTOBO1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE94112ESRPIHATTOBO1 is usually 5 days.
3.What payment methods are accepted for TLE94112ESRPIHATTOBO1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE94112ESRPIHATTOBO1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE94112ESRPIHATTOBO1?
TLE94112ESRPIHATTOBO1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE94112ESRPIHATTOBO1 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 TLE94112ESRPIHATTOBO1?
For technical support, including TLE94112ESRPIHATTOBO1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE94112ESRPIHATTOBO1 requirements.
6.How does Aetrix verify that TLE94112ESRPIHATTOBO1 is sourced from the original manufacturer or authorized distributors?
All TLE94112ESRPIHATTOBO1 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 TLE94112ESRPIHATTOBO1 meets industry standards.
7.What is the process for return or replacement of TLE94112ESRPIHATTOBO1?
All TLE94112ESRPIHATTOBO1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE94112ESRPIHATTOBO1, 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 TLE94112ESRPIHATTOBO1 part is unused and in its original packaging.
Return procedure for TLE94112ESRPIHATTOBO1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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