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Infineon Technologies TLE94108ELXUMA1
- Part No.:
- TLE94108ELXUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Full Half-Bridge (H Bridge) Drivers
- Package:
- 24-LSSOP (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
TLE94108ELXUMA1.pdf
- Description:
- IC HALF BRIDGE DRVR 500MA 24SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,903
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Product details
Overview
TLE94108EL from Infineon is an automotive-grade, SPI-controlled eight-channel half-bridge driver IC designed for bidirectional DC motor control in HVAC flap actuators. It features 8 independently diagnosable half-bridges, 16-bit SPI interface with daisy-chain capability, and integrated protections including overcurrent (≥0.9 A), open-load (HS/LS), short-circuit, cross-current, overtemperature pre-warning, and UV/OV lockout. Operates from 5.5–18 V supply with <0.1 µA quiescent current in sleep mode.
For engineers reviewing the TLE94108EL datasheet, TLE94108EL pinout, TLE94108EL application, or TLE94108EL equivalent, key selection criteria include SPI-configurable PWM (80/100/200 Hz, 8-bit duty), selectable open-load thresholds for HS1/HS2, thermal performance in PG-SSOP-24 package, and diagnostic granularity per output channel for ASIL-B–capable motion control systems.
Technical Context
The TLE94108EL implements a fully integrated power stage with independent high-side and low-side MOSFET drivers per channel, controlled via 16-bit SPI frames supporting in-frame status response and global error flag reporting. Each half-bridge supports forward, reverse, brake, and high-impedance modes with PWM-capable switching up to 200 Hz.
Diagnosis architecture includes real-time current sensing per channel, dedicated open-load detection in ON-state for all HS/LS outputs, temperature monitoring with pre-warning threshold, and dual-supply monitoring (VS1/VS2 and VDD) with hysteresis-based UV/OV shutdown. Protection logic is hardware-asserted without MCU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Channels | 8 independent half-bridges, each configurable for bidirectional motor drive or relay/LED control |
| Supply Voltage Range | VS = 5.5–18 V (normal), up to 40 V load-dump tolerant; VDD = 3.0–5.5 V logic supply |
| On-State Resistance | RDSON(total)_HSx+LSy = 1.8 + 1.8 Ω @ Tj = 150°C - defines max power loss per channel at full load |
| SPI Interface | 16-bit frame, up to 5 MHz clock, daisy-chain capable - enables multi-device control with minimal MCU pins |
| Quiescent Current | ISQ = 0.1 µA @ Tj = 85°C - enables always-on automotive modules with ultra-low standby power |
| Diagnostic Coverage | Per-channel overcurrent, open-load (HS/LS), short-to-battery/ground, cross-current, and overtemperature - supports ISO 26262 ASIL-B diagnostics |
| PWM Capability | 80/100/200 Hz frequencies with 8-bit duty cycle resolution - suitable for precise speed/torque control of small DC motors |
Pinout & Package
Package: PG-SSOP-24 (24-pin shrink small-outline package with exposed die pad for thermal/EMC enhancement). Pin pitch: 0.65 mm. Exposed pad (EP) recommended connected to GND for optimal thermal dissipation and EMC performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1,12,13,24) | Power and signal ground reference | Four dedicated GND pins reduce impedance and improve noise immunity; EP must be externally tied to GND or left floating |
| OUT1–OUT8 (Pins 2,3,4,10,11,14,22,23) | Half-bridge power outputs | Each drives one motor winding or load; supports bidirectional current flow and PWM modulation |
| VS1 / VS2 (Pins 16,21) | Main power supply inputs | Must be externally shorted; supplies all 8 half-bridges; rated for 40 V load dump protection |
| VDD (Pin 6) | Logic supply input | 3.0–5.5 V supply for internal logic, SPI interface, and diagnostics; 3.3 V/5 V compatible with hysteresis |
| SDI / SDO / SCLK / CSN (Pins 5,7,20,19) | SPI interface signals | Full-duplex 16-bit SPI with chip select (CSN active-low, pull-up), clock (SCLK, pull-down), data in/out (SDI/SDO, SDI pull-down) |
| EN (Pin 8) | Enable control input | Active-high enable; internal pull-down ensures safe default OFF state during power-up or reset |
| N.U. (Pins 9,15,17,18) | No-connect terminals | Must remain unconnected; routing to external connectors requires zero-ohm jumper provision or ESD protection |
Key Features
| Feature | Design Value |
|---|---|
| Independent per-channel diagnosis | Real-time overcurrent, open-load (ON-state), short-to-battery/ground, and cross-current detection - eliminates need for external sense resistors or comparators |
| Selectably configurable open-load thresholds | HS1 and HS2 outputs support user-defined voltage thresholds for open-load detection - adapts to varying motor winding resistance or LED forward voltage |
| Daisy-chain SPI topology | Single MCU SPI port controls multiple TLE94108EL devices with cascaded SDO→SDI routing - reduces MCU pin count and PCB routing complexity |
| Thermal-aware operation | Integrated temperature sensor with pre-warning flag and hard shutdown at critical junction temperature - prevents thermal runaway without software polling |
| Automotive-grade protection suite | UV/OV lockout on both VS and VDD, reverse polarity protection, and 40 V load-dump tolerance - meets ISO 16750-2 requirements |
Applications
| HVAC Flap Actuation | Side Mirror Adjustment |
|---|---|
Use Scenario: Precise positioning of HVAC blend air flaps in automotive cabin climate control systems. IC Role / Device Role / Timing Role: Eight-fold half-bridge driver executing bidirectional PWM control per flap motor, with real-time fault reporting via SPI. Use Value: Enables closed-loop position control with <0.1 µA sleep current, reducing parasitic drain on vehicle battery during ignition-off states. | Use Scenario: X-Y axis movement and fold/unfold functions for electric side mirrors. IC Role / Device Role / Timing Role: Dual-motor driver managing independent mirror tilt (X) and pan (Y) axes, plus fold actuator - all from single IC. Use Value: Reduces BOM count by consolidating three discrete drivers into one SPI-configurable device with shared diagnostics and thermal management. |
| Monostable/Bistable Relay Control | Automotive LED Load Driving |
Use Scenario: Energizing monostable latching relays (single-coil pulse) and bistable relays (dual-coil set/reset) in body control modules. IC Role / Device Role / Timing Role: Half-bridge output configured as current-limited pulse driver with programmable pulse width and polarity reversal. Use Value: Eliminates need for external flyback diodes and timing capacitors; built-in short-circuit protection prevents coil burnout during relay contact welding. | Use Scenario: Driving high-brightness interior or exterior LEDs (e.g., ambient lighting, status indicators) with dimming control. IC Role / Device Role / Timing Role: Configured in "LED mode" with PWM dimming at 100 Hz and adjustable current limit per channel. Use Value: Provides consistent brightness across temperature range using on-chip current regulation - avoids external current-sense resistors and op-amps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar eight-channel half-bridge driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BTS7200-2EPP | 8-channel high-side switch only (no low-side); no SPI interface; parallel control via 8 GPIOs | Lacks bidirectional motor control and per-channel diagnosis; limited to unidirectional loads like solenoids or lamps | Choose when only high-side switching is needed and MCU GPIO count is sufficient for direct control |
| TLE9201SE | 4-channel half-bridge with SPI; lower integration density; no daisy-chain support; 3.3 V logic only | Requires two devices for 8-channel coverage; lacks selectable open-load thresholds and LED mode | Prefer when design requires modular scalability or legacy compatibility with older Infineon SPI drivers |
Compared with BTS7200-2EPP and TLE9201SE, the TLE94108EL uniquely delivers full bidirectional control, per-channel diagnosis, daisy-chain SPI, and configurable open-load detection in a single PG-SSOP-24 package - making it optimal for space-constrained, safety-aware automotive motion control.
Availability
TLE94108EL is available at Aetrix Electronics and suitable for HVAC flap actuation, side mirror adjustment, monostable/bistable relay control, and automotive LED driving requiring stable component supply across automotive production lifecycles.
Supply support for TLE94108EL 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 infrastructure.
The TLE94108EL belongs to Infineon's TLE94xx family of protected half-bridge drivers, engineered specifically for ASIL-B–compliant automotive motion control applications demanding high integration, robust diagnostics, and low-power standby operation.
FAQ
What is the maximum allowable load dump voltage for TLE94108EL?
The TLE94108EL supports up to 40 V load dump protection on its VS1/VS2 supply pins, compliant with ISO 16750-2 Pulse 5a/b test conditions. This rating applies only when external clamping components (e.g., TVS diodes) are omitted, as the device integrates internal clamp circuitry. Operation above 20 V is limited to transient events; continuous operation must remain within 5.5–18 V.
Can TLE94108EL drive inductive loads without external freewheeling diodes?
Yes - the TLE94108EL integrates internal freewheeling paths for both high-side and low-side transistors, enabling safe commutation of inductive loads such as DC motors and relays without external diodes. Its cross-current protection and short-to-battery/ground detection further ensure robustness during switching transitions and fault conditions.
How does open-load diagnosis work in ON-state for high-side and low-side outputs?
During active drive (ON-state), the TLE94108EL monitors voltage at each output terminal relative to VS (for HS) or GND (for LS). If the measured voltage deviates beyond a configurable threshold - indicating absence of load current - the device flags open-load in the corresponding status register. HS1 and HS2 thresholds are user-selectable via SPI; all other HS/LS channels use fixed thresholds.
Is daisy-chain SPI configuration supported with mixed TLE94108EL devices on the same bus?
Yes - the TLE94108EL supports true daisy-chain operation where SDO of one device connects directly to SDI of the next, with shared SCLK and CSN lines. All devices respond simultaneously to broadcast commands, and status data propagates serially through the chain. No address decoding or timing skew compensation is required, simplifying firmware implementation for multi-driver systems.
TLE94108ELXUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 24-LSSOP (0.154", 3.90mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Half Bridge (8)
- Applications:
- AC Motors, DC Motors, General Purpose
- Interface:
- SPI
- Load Type:
- Inductive
- Technology:
- Power MOSFET
- Rds On (Typ):
- 850mOhm LS, 850mOhm HS
- Current - Output / Channel:
- 500mA
- Current - Peak Output:
- 2A
- Voltage - Supply:
- 3V ~ 5.5V
- Voltage - Load:
- 5.5V ~ 20V
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Features:
- -
- Fault Protection:
- Over Temperature, Short Circuit, UVLO
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-SSOP-24-4
TLE94108ELXUMA1 FAQ
1.How can I place an order for TLE94108ELXUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE94108ELXUMA1 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 TLE94108ELXUMA1 reliable?
The price and inventory of TLE94108ELXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE94108ELXUMA1 is usually 5 days.
3.What payment methods are accepted for TLE94108ELXUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE94108ELXUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE94108ELXUMA1?
TLE94108ELXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE94108ELXUMA1 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 TLE94108ELXUMA1?
For technical support, including TLE94108ELXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE94108ELXUMA1 requirements.
6.How does Aetrix verify that TLE94108ELXUMA1 is sourced from the original manufacturer or authorized distributors?
All TLE94108ELXUMA1 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 TLE94108ELXUMA1 meets industry standards.
7.What is the process for return or replacement of TLE94108ELXUMA1?
All TLE94108ELXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE94108ELXUMA1, 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 TLE94108ELXUMA1 part is unused and in its original packaging.
Return procedure for TLE94108ELXUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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