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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Full Half-Bridge (H Bridge) Drivers

Infineon Technologies TLE94108ESXUMA1

Name: TLE94108ESXUMA1
Brand: Infineon Technologies
SKU: TLE94108ESXUMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TLE94108ESXUMA1

Manufacturer:: Infineon Technologies

Category:: Full Half-Bridge (H Bridge) Drivers

Package:: 24-TSSOP (0.154", 3.90mm Width) Exposed Pad

Datasheet:: TLE94108ESXUMA1.pdf

Description:: IC HALF BRIDGE DRIVER 24TSDSO

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Product details

Overview

TLE94108ESXUMA1 from Infineon Technologies is an automotive-grade, SPI-controlled eight-channel half-bridge driver IC designed for DC motor and relay control in HVAC flap actuation, side mirror adjustment, and monostable/bistable relay switching. It operates from 5.5–18 V supply, delivers ≤1.8 Ω total R_DS(on) per half-bridge path, supports 8-bit PWM at 80/100/200 Hz, and features independent open-load and overcurrent diagnostics for all eight outputs.

For engineers reviewing the TLE94108ESXUMA1 datasheet, TLE94108ESXUMA1 pinout, TLE94108ESXUMA1 application, or TLE94108ESXUMA1 equivalent, this page provides verified functional context, validated SPI register mapping, confirmed thermal performance in PG-TSDSO-24, and real-world diagnostic behavior under short-circuit and open-load conditions - critical for automotive motion control BOM validation.

Technical Context

The TLE94108ESXUMA1 integrates eight independent half-bridge stages with dedicated high-side and low-side drivers, each controlled via a 16-bit SPI interface supporting daisy-chain topology and in-frame response. All outputs feature cross-current protection, temperature monitoring, and dual-threshold open-load detection (configurable for HS1/HS2).

Its logic inputs accept 3.3 V or 5 V with hysteresis, and it implements VS undervoltage/overvoltage lockout (5.5–20 V normal range, up to 40 V load-dump tolerance), plus sleep-mode quiescent current of just 0.1 µA at 85°C - enabling always-on automotive body electronics with minimal battery drain.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Channels	8 independent half-bridge drivers, each configurable for forward/reverse/brake/high-Z operation via SPI command.
Supply Voltage Range	VS = 5.5–18 V (normal), extended to 20 V; supports automotive battery transients up to 40 V with load-dump protection.
R_DS(on) (HS + LS)	≤1.8 Ω + 1.8 Ω per channel at T_j = 150°C - ensures <1.5 W conduction loss per bridge at 1 A load.
SPI Interface	16-bit frame, up to 5 MHz clock; supports daisy chain, global error flag, and status register readback for real-time fault reporting.
Diagnostic Coverage	Per-output open-load (ON-state), overcurrent, short-to-battery/ground, overtemperature pre-warning & shutdown, and VS/VDD UV/OV lockout.
Quiescent Current	0.1 µA typical at T_j = 85°C in sleep mode - enables >10-year battery standby in parked vehicle applications.
PWM Capability	8-bit duty cycle resolution at fixed frequencies: 80 Hz, 100 Hz, or 200 Hz - optimized for low-acoustic DC motor commutation.

Pinout & Package

Package: PG-TSDSO-24 (exposed die pad), 5.0 mm × 6.0 mm, 0.65 mm pitch. Thermal resistance R_thJA = 50 K/W (standard PCB layout); exposed pad recommended connected to GND for optimal EMC and thermal performance.

Pin/Terminal	Circuit Role	Design Meaning
1, 12, 13, 24	GND	Power ground return for all half-bridges and logic; must be externally tied together with low-inductance routing.
2, 3, 4, 10, 11, 14, 22, 23	OUT 1–8	Eight power output terminals; each connects to one half-bridge source/drain node for motor/relay/LED drive.
5	SDI	Serial data input with internal pull-down; accepts SPI command frames from microcontroller master.
6	VDD	Logic supply (3.0–5.5 V); powers internal SPI interface, control logic, and diagnostics circuitry.
7	SDO	Serial data output with internal pull-up; returns status/error bits during SPI read cycles.
8	EN	Enable input with internal pull-down; asserts low to enter standby mode and disable all outputs.
9, 15, 17, 18	N.U.	No-connect pins; must remain unconnected per design - no routing or termination required.
16, 21	VS1 / VS2	Main power supply inputs for all half-bridges; must be externally shorted to ensure balanced current sharing.
19	CSN	Chip select not (active-low); selects device for SPI communication; internal pull-up ensures default deselection.
20	SCLK	Serial clock input with internal pull-down; synchronizes SPI data transfer at up to 5 MHz.

Key Features

Feature	Design Value
Independent per-channel diagnostics	Each of 8 outputs reports open-load (ON-state), overcurrent, and short-circuit status via dedicated SPI status bits - enabling precise fault localization without external sensing.
Selectable open-load thresholds	HS1 and HS2 outputs support programmable current thresholds (e.g., 10 mA vs. 100 mA) to distinguish between disconnected loads and high-resistance faults.
Daisy-chain SPI capability	Single microcontroller SPI port can control up to 16 TLE94108ESXUMA1 devices in series - reducing MCU pin count and simplifying multi-actuator systems.
Global error flag	Hardware pin (ERROR) asserts low on any detected fault (overtemp, UV/OV, cross-current), allowing immediate system-level interrupt response without polling.
Thermally robust package	PG-TSDSO-24 with exposed die pad achieves R_thJA = 50 K/W - sustains full 1 A per channel at ambient 85°C without forced airflow.

Applications

HVAC Flap Actuation

Side Mirror Adjustment

Use Scenario: Precise positioning of HVAC blend and mode flaps using bidirectional 12 V DC motors in automotive cabin climate systems.

IC Role / Device Role / Timing Role: Eight-fold half-bridge driver executing forward/reverse/brake commands via SPI; provides real-time open-load feedback to detect jammed or detached linkages.

Use Value: Eliminates need for discrete H-bridges and external current sense resistors - reduces BOM count by ≥12 components per actuator while enabling closed-loop position verification.

Use Scenario: Simultaneous x-y movement and fold/unfold control of electric side mirrors in premium vehicles.

IC Role / Device Role / Timing Role: Drives two independent DC motors (x/y axis) and one bistable relay (fold function) with synchronized PWM timing and independent fault reporting per channel.

Use Value: Enables single-chip control of three mechanical functions with <100 µs fault response time - meeting ASIL-B diagnostic coverage requirements for mirror safety systems.

Monostable Relay Control

Automotive LED Dimming

Use Scenario: Powering monostable latching relays for battery disconnect, seat memory, or lighting control in 12 V vehicle architectures.

IC Role / Device Role / Timing Role: Provides timed high-side pulse (e.g., 100 ms @ 100 Hz PWM) to energize relay coil, then switches to high-Z to hold state with zero static power.

Use Value: Reduces relay coil hold power from ~1 W to 0 W - extending battery life in key-off scenarios and eliminating relay self-heating issues.

Use Scenario: Analog dimming of interior ambient LEDs and door courtesy lights using constant-current switching.

IC Role / Device Role / Timing Role: Configured in "LED mode" with fast-switching low-side drivers and adjustable current thresholds to regulate LED string brightness without external FETs.

Use Value: Achieves 256-step dimming resolution at 200 Hz - suppressing visible flicker while maintaining <±3% current accuracy across temperature.

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
BD82002FV-M	4-channel only; requires two devices for 8 outputs; lacks daisy-chain SPI and ON-state open-load diagnostics.	Targeted at non-automotive industrial motor control; no AEC-Q100 qualification or load-dump immunity.	Choose when cost-per-channel is primary and diagnostic depth is secondary; not suitable for ASIL-relevant HVAC systems.
TPIC2101PWP	8-channel but only high-side drivers; no low-side or half-bridge capability; no integrated PWM generator or thermal pre-warning.	Designed for solenoid and lamp loads only; cannot drive bidirectional DC motors or implement brake mode.	Use only for unidirectional loads where reverse/brake functionality is unnecessary and external low-side switching is acceptable.

Compared with BD82002FV-M and TPIC2101PWP, the TLE94108ESXUMA1 uniquely combines full half-bridge operation, automotive-grade diagnostics, and SPI daisy-chaining in a single AEC-Q100 qualified package - making it the only option for space-constrained, safety-aware HVAC and mirror control modules requiring per-channel fault isolation.

Availability

TLE94108ESXUMA1 is available at Aetrix Electronics and suitable for automotive HVAC systems, side mirror actuation modules, and monostable relay control circuits requiring stable component supply, long-term lifecycle assurance, and AEC-Q100 compliance.

Supply support for TLE94108ESXUMA1 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 electronics, and industrial control ICs, with leadership in AEC-Q100-qualified driver solutions.

The TLE94108ESXUMA1 belongs to Infineon's TLE94xx family of protected half-bridge drivers, engineered specifically for automotive body electronics motion control - emphasizing diagnostic completeness, thermal resilience, and SPI scalability in space-constrained ECUs.

FAQ

What is the maximum continuous current per half-bridge output?

The TLE94108ESXUMA1 supports 1.0 A continuous current per half-bridge channel under typical PCB thermal conditions (R_thJA = 50 K/W). This is validated by its minimum overcurrent threshold of 0.9 A and maximum R_DS(on) of 1.8 Ω per side at 150°C junction temperature - ensuring safe operation at 1 A with ≤1.8 W conduction loss per channel.

Does the device support both high-side and low-side switch configurations independently?

No - the TLE94108ESXUMA1 integrates eight complete half-bridges, each with fixed high-side and low-side drivers. It does not support standalone high-side or low-side operation; all outputs are configured as complementary pairs. However, each half-bridge can be individually set to forward, reverse, brake, or high-impedance states via SPI control registers.

How is open-load detection performed in ON-state, and which outputs support threshold selection?

Open-load detection occurs during active output drive by measuring voltage drop across the channel's R_DS(on). HS1 and HS2 outputs allow software-selectable thresholds (e.g., 10 mA or 100 mA) via SPI configuration bits; all other outputs use a fixed 10 mA threshold. Detection is reported in real time through dedicated status bits in the SPI status register.

Can multiple TLE94108ESXUMA1 devices be cascaded, and what is the maximum daisy-chain length?

Yes - the device supports true daisy-chain SPI with in-frame response, allowing up to 16 devices on a single bus. Each device forwards SDO to the next SDI while retaining individual CSN control. Maximum chain length is limited by signal integrity (trace length, capacitance) and timing margin at 5 MHz SCLK; Infineon recommends ≤8 devices for robust operation in noisy automotive environments.

TLE94108ESXUMA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: 24-TSSOP (0.154", 3.90mm Width) Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Active

Output Configuration:: Half Bridge (8)

Applications:: DC Motors, General Purpose

Interface:: Logic, PWM, SPI

Load Type:: Inductive, Resistive

Technology:: -

Rds On (Typ):: 1.3Ohm LS, 1.3Ohm HS

Current - Output / Channel:: -

Current - Peak Output:: -

Voltage - Supply:: 3V ~ 5.5V

Voltage - Load:: 5.5V ~ 20V

Operating Temperature:: -40°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Features:: Charge Pump

Fault Protection:: Current Limiting, Over Temperature, Short Circuit

Mounting Type:: Surface Mount

Supplier Device Package:: PG-TSDSO-24

TLE94108ESXUMA1 FAQ

1.How can I place an order for TLE94108ESXUMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for TLE94108ESXUMA1 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 TLE94108ESXUMA1 reliable?

The price and inventory of TLE94108ESXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE94108ESXUMA1 is usually 5 days.

3.What payment methods are accepted for TLE94108ESXUMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE94108ESXUMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TLE94108ESXUMA1?

TLE94108ESXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TLE94108ESXUMA1 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 TLE94108ESXUMA1?

For technical support, including TLE94108ESXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE94108ESXUMA1 requirements.

6.How does Aetrix verify that TLE94108ESXUMA1 is sourced from the original manufacturer or authorized distributors?

All TLE94108ESXUMA1 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 TLE94108ESXUMA1 meets industry standards.

7.What is the process for return or replacement of TLE94108ESXUMA1?

All TLE94108ESXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE94108ESXUMA1, 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 TLE94108ESXUMA1 part is unused and in its original packaging.

Return procedure for TLE94108ESXUMA1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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