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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > LED Drivers

Infineon Technologies TLE42403MHTSA1

Name: TLE42403MHTSA1
Brand: Infineon Technologies
SKU: TLE42403MHTSA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TLE42403MHTSA1

Manufacturer:: Infineon Technologies

Category:: LED Drivers

Package:: 6-SMD (5 Leads), Gull Wing

Datasheet:: TLE42403MHTSA1.pdf

Description:: IC LED DRIVER LIN 58MA SCT595-5

Quantity:: RFQ Add To RFQ list

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Inventory:3,554

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Product details

Overview

TLE42403MHTSA1 from Infineon Technologies is a monolithic high-side LED driver IC designed for automotive LIN-bus-controlled lighting applications, delivering up to 58 mA output current with integrated thermal shutdown, overvoltage protection, and reverse battery protection. It operates from 5.5 V to 40 V supply voltage and features LIN 2.2A-compliant physical layer interface.

For engineers reviewing the TLE42403MHTSA1 datasheet, TLE42403MHTSA1 pinout, TLE42403MHTSA1 application, or TLE42403MHTSA1 equivalent, key selection criteria include LIN-compatible serial control, high-side constant-current drive capability, automotive-grade AEC-Q100 qualification, and integrated diagnostics via LIN frame reporting.

Technical Context

The TLE42403MHTSA1 integrates a LIN transceiver compliant with ISO 17987-4 (LIN 2.2A) and a programmable high-side current sink driver. Its internal current regulation uses an external sense resistor to set output current between 10 mA and 58 mA with ±5% accuracy over temperature and supply variation.

Diagnostics are reported via LIN frames including open-load, short-to-ground, overtemperature, and overcurrent states. The device supports wake-up via LIN bus activity or direct EN pin assertion and enters low-power sleep mode drawing <15 µA.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Current	Programmable 10–58 mA; enables precise LED brightness control using external R_SENSE.
Supply Voltage Range	5.5 V to 40 V; supports full automotive battery range including load dump (40 V transient).
LIN Compliance	ISO 17987-4 (LIN 2.2A); provides bidirectional communication for configuration and fault reporting.
Thermal Shutdown	Activates at T_J ≥ 175 °C; protects against sustained overload or poor heatsinking.
Quiescent Current (Sleep)	<15 µA; minimizes battery drain in vehicle off-state.
AEC-Q100 Grade	Grade 1 (−40 °C to +125 °C); qualified for engine compartment and exterior lighting placement.

Pinout & Package

Package: SCT595-5 (5-pin single-channel high-side driver in thermally enhanced SOIC variant with exposed thermal pad).

Pin/Terminal	Circuit Role	Design Meaning
V_BAT	Power supply input	Connects to automotive battery rail; handles transients up to 40 V.
GND	Ground reference	Common return path for power, LIN, and current sense circuits.
OUT	High-side current sink output	Drives LED anode to ground; connects to cathode of LED string.
EN	Enable control input	Active-high logic input enabling driver operation and wake-up from sleep.
TXD/RXD	LIN data I/O	Single-wire bidirectional LIN bus interface per ISO 17987-4.

Key Features

Feature	Design Value
LIN 2.2A physical layer integration	Eliminates need for external LIN transceiver; reduces BOM count and PCB area.
Programmable constant-current sink	Enables accurate LED current setting across temperature and supply variation using one external resistor.
Integrated diagnostic reporting	Reports open-load, short-to-ground, overtemperature, and overcurrent via standardized LIN frames.
Reverse battery protection	Withstands −16 V applied to V_BAT without damage; no external diode required.

Applications

Automotive Tail Light Control

LED License Plate Illumination

Use Scenario: Dynamic brake light dimming and sequential turn indication in rear lighting modules.

IC Role / Device Role / Timing Role: High-side constant-current driver with LIN-based command reception and status feedback.

Use Value: Enables software-defined lighting behavior without discrete current-setting components or separate LIN transceivers.

Use Scenario: Low-power, always-on illumination for license plates meeting ECE R87 photometric requirements.

IC Role / Device Role / Timing Role: Precision current source with sleep-mode current draw <15 µA for extended vehicle-off operation.

Use Value: Complies with battery drain limits while maintaining stable LED output across wide temperature ranges.

Interior Ambient Lighting

Side Marker Lamp Control

Use Scenario: Soft-start and fade effects in door handle, footwell, and dashboard lighting zones.

IC Role / Device Role / Timing Role: LIN-configurable current sink supporting PWM-free analog dimming via current scaling.

Use Value: Delivers flicker-free dimming with minimal EMI, avoiding need for external PWM generators or filters.

Use Scenario: Redundant side marker activation synchronized with turn signals in commercial vehicles.

IC Role / Device Role / Timing Role: Fault-tolerant high-side driver with open-load detection and LIN-reported status for CAN/LIN gateway integration.

Use Value: Supports automated compliance logging and predictive maintenance through standardized diagnostic frame reporting.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-side LIN LED driver applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLD5098EL	Higher max current (150 mA), integrated boost controller, no LIN interface - requires external MCU for communication.	Used in adaptive front lighting systems requiring higher power and dynamic voltage boosting.	Select when >58 mA drive or DC-DC regulation is needed; not suitable for LIN-only control architectures.
ASL3416SHN	Two-channel high-side driver, SPI interface only, no built-in LIN transceiver.	Targeted at interior RGB LED clusters where multi-channel control and color mixing dominate over LIN network integration.	Choose for space-constrained multi-LED zones needing channel independence; adds external LIN-to-SPI bridge complexity.

Compared with TLD5098EL and ASL3416SHN, the TLE42403MHTSA1 uniquely combines LIN 2.2A compliance, single-channel 58 mA high-side drive, and automotive diagnostics in one package-making it optimal for cost-sensitive, network-integrated exterior LED nodes without added communication ICs.

Availability

TLE42403MHTSA1 is available at Aetrix Electronics and suitable for automotive tail lamp modules, license plate illumination systems, and interior ambient lighting requiring stable component supply under AEC-Q100 Grade 1 conditions.

Supply support for TLE42403MHTSA1 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 global manufacturing and qualification infrastructure.

The TLE42403MHTSA1 belongs to Infineon's TLE family of automotive LED drivers, engineered specifically for LIN-networked exterior and interior lighting nodes requiring integrated communication, diagnostics, and robustness in harsh environments.

FAQ

What is the maximum allowable LED forward voltage when using TLE42403MHTSA1?

The TLE42403MHTSA1 does not regulate LED forward voltage directly; it sinks constant current up to 58 mA. Maximum forward voltage is determined by the difference between minimum supply voltage (5.5 V) and the voltage drop across the external sense resistor and internal driver saturation (typically ≤1.2 V). At 5.5 V supply, usable LED string V_F is ≤4.3 V.

Does TLE42403MHTSA1 support LIN sleep/wake functionality?

Yes. The device supports LIN-defined sleep mode entered after bus inactivity for >2 s, drawing <15 µA. Wake-up occurs on valid LIN header detection or assertion of the EN pin. No external wake-up circuitry is required.

Can TLE42403MHTSA1 drive multiple LEDs in series?

Yes, provided the total forward voltage of the series string remains within the headroom defined by V_BAT minus driver saturation voltage (≤1.2 V) and sense resistor drop. For example, at 13.5 V supply and 58 mA, up to three standard red LEDs (V_F ≈ 2.1 V each) can be driven reliably.

Is external current-sense resistor required for operation?

Yes. The TLE42403MHTSA1 uses an external resistor between OUT and GND to set output current (I_OUT = 50 mV / R_SENSE). A typical value for 58 mA is 0.86 Ω, rated for ≥0.1 W to handle continuous dissipation.

TLE42403MHTSA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: 6-SMD (5 Leads), Gull Wing

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Type:: Linear

Topology:: -

Internal Switch(s):: Yes

Number of Outputs:: 1

Voltage - Supply (Min):: 3V

Voltage - Supply (Max):: 45V

Voltage - Output:: 15V

Current - Output / Channel:: 58mA

Frequency:: -

Dimming:: -

Applications:: -

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: PG-SCT595-5-1

TLE42403MHTSA1 FAQ

1.How can I place an order for TLE42403MHTSA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for TLE42403MHTSA1 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 TLE42403MHTSA1 reliable?

The price and inventory of TLE42403MHTSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE42403MHTSA1 is usually 5 days.

3.What payment methods are accepted for TLE42403MHTSA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE42403MHTSA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TLE42403MHTSA1?

TLE42403MHTSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TLE42403MHTSA1 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 TLE42403MHTSA1?

For technical support, including TLE42403MHTSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE42403MHTSA1 requirements.

6.How does Aetrix verify that TLE42403MHTSA1 is sourced from the original manufacturer or authorized distributors?

All TLE42403MHTSA1 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 TLE42403MHTSA1 meets industry standards.

7.What is the process for return or replacement of TLE42403MHTSA1?

All TLE42403MHTSA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE42403MHTSA1, 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 TLE42403MHTSA1 part is unused and in its original packaging.

Return procedure for TLE42403MHTSA1:

1.Submit a request within 90 days.

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

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