Infineon TDA38725A0000AUMA1 Automotive LED Driver IC, HSOP8 for Vehicle Lighting Systems

Infineon TDA38725A0000AUMA1 Automotive LED Driver Overview for B2B Vehicle Lighting Systems

The Infineon TDA38725A0000AUMA1 is a high-performance, automotive-grade LED Driver IC??engineered for B2B applications demanding stable LED power delivery, wide voltage tolerance, and thermal efficiency for Automotive Electronics. It targets critical vehicle lighting systems: exterior headlights (LED low/high beams), taillights, and interior ambient lighting. Key integrations include: 9V?C36V input range (handles 12V/24V vehicle battery fluctuations), 1.2A maximum output current (powers single/multi-LED arrays), 95% peak efficiency (minimizes power loss and heat), built-in over-temperature/over-current protection, HSOP8 (Heat Sink Small Outline Package, 8-pin) surface-mount package, and -40??C to +125??C operating temperature??delivering consistent brightness and long lifespan to automotive LEDs in harsh environments.

With 9V?C36V input range + 95% peak efficiency (tuned for automotive voltage variability and LED longevity), it balances three critical B2B needs: lighting stability (avoids dimming/burnout), thermal management (reduces cooling design work), and durability (survives extreme temps). As part of Infineon??s automotive IC lineup??a series trusted by 118,000+ automotive lighting engineers and OEMs??it meets strict quality benchmarks: AEC-Q100 Grade 2 (1,000+ hours of stress testing), ISO 26262 ASIL-B (functional safety for exterior lighting), RoHS 3, and UL 94V-0 (package flammability).

Senior engineers at a leading automotive headlight manufacturer endorse it: ??This LED driver powers our LED high beams. Its 36V input handles 24V truck batteries, and 95% efficiency keeps LEDs cool??we hit 99.94% lighting uptime and 97% automaker satisfaction.?? For more reliable automotive LED driver solutions, visit Produttore di circuiti integrati.

Technical Parameters of Infineon TDA38725A0000AUMA1

Parametro	Specifiche
Product Type	Infineon Automotive-Grade LED Driver IC
Primary Function	Constant current/voltage regulation for automotive LEDs, over-temperature/over-current protection
Intervallo di tensione in ingresso	9V to 36V DC (compatible with 12V passenger car and 24V commercial vehicle batteries)
Corrente di uscita	Up to 1.2A (continuous); adjustable via external resistor for single/multi-LED arrays
Tensione di uscita	Up to 40V (supports series-connected LED strings with 10+ LEDs)
Efficiency (Peak)	95% (at 12V input, 1A output; minimizes heat generation for LED longevity)
Caratteristiche di protezione	Over-temperature protection (OTP), over-current protection (OCP), LED open/short-circuit protection
Automotive Compliance	AEC-Q100 Grade 2 (-40??C to +125??C), ISO 26262 ASIL-B (functional safety)
Intervallo di temperatura operativa	-40??C to +125??C (exterior/interior vehicle lighting environments)
Tipo di confezione	HSOP8 (10.16mm x 6.35mm x 2.54mm, 8-pin Heat Sink Small Outline Package; surface-mount)
Conformità	AEC-Q100 Grade 2, ISO 26262 ASIL-B, RoHS 3, UL 94V-0

Key Technical Features of TDA38725A0000AUMA1 LED Driver IC

• 9V?C36V Wide Input Range: Works with 12V/24V batteries. A commercial vehicle lighting firm noted: ??36V input handles 24V truck batteries??we no longer need separate drivers for cars/trucks. Inventory costs dropped by 25%.??
• 95% Peak Efficiency: Extends LED lifespan. A headlight OEM shared: ??95% efficiency cuts heat vs. 88% drivers??LED lifespan increased by 30%, reducing warranty claims for failed headlights by 65%.??
• HSOP8 Thermal Package: Simplifies cooling design. An interior lighting firm confirmed: ??HSOP8??s built-in heat sink eliminated the need for external heat spreaders??PCB design time fell by 20%, getting products to market 3 weeks faster.??
• 1.2A Adjustable Output Current: Flexes for LED arrays. A taillight manufacturer said: ??Adjustable current powers 1-LED indicators and 5-LED brake lights??we use 1 driver for 4 lighting types, cutting component count by 75%.??
• Built-In LED Protection: Prevents damage. An exterior lighting firm explained: ??Open/short-circuit protection stopped 98% of LED burnout??warranty costs dropped from $180,000 to $63,000 yearly.??

Advantages vs. Typical Alternatives

Compared to narrow-input LED drivers (fail 24V batteries), low-efficiency drivers (shorten LED life), and basic-package drivers (need extra cooling), this Infineon LED Driver IC solves critical B2B pain points??backed by real customer feedback:

1. Better Voltage Compatibility Than Narrow-Input Drivers: Narrow-input (9V?C18V) drivers only work with 12V cars, requiring separate 24V drivers for trucks??adding $1.80 per unit in inventory costs and 30% more SKUs. The 9V?C36V range works for both. A commercial lighting engineer said: ??Our old 9V?C18V drivers needed 2 SKUs??this 36V model needs 1. We cut inventory costs by 25%, saved $90,000 yearly for 50,000 units, and won a $2.2M contract with a truck OEM that wanted a single driver solution.??

2. Longer LED Life Than Low-Efficiency Drivers: Low-efficiency (88%) drivers waste 12% of power as heat, shortening LED lifespan by 22% and causing 18% more headlight warranty claims. The 95% efficiency cuts waste to 5%. A headlight OEM shared: ??Our old 88% drivers had 18% warranty claims??this 95% model has 6.3%. We saved $117,000 yearly and retained a $3.5M passenger car contract, as automakers hate replacing failed headlights under warranty.??

3. Easier Cooling Design Than Basic-Package Drivers: Basic SOP8 drivers need external heat spreaders ($0.75 per unit) and extra PCB space, delaying design by 3 weeks and adding $37,500 yearly for 50,000 units. The HSOP8??s built-in heat sink eliminates this. An interior lighting engineer confirmed: ??Our old SOP8 drivers needed $0.75 heat spreaders??this HSOP8 model doesn??t. We cut design time by 20%, launched a new ambient lighting line 3 weeks early, and grew market share by 18%.??

Applicazioni tipiche

• Automotive Electronics (Exterior Headlights): 9V?C36V works with 12V/24V batteries, 95% efficiency extends LED life. A headlight firm sold 65,000 units to car/truck OEMs, cutting warranty claims by 65%.
• Automotive Electronics (Taillights/Brake Lights): 1.2A adjustable current powers multi-LED arrays, HSOP8 simplifies cooling. A taillight OEM sold 80,000 units, reducing component count by 75%.
• Automotive Electronics (Interior Ambient Lighting): -40??C to +125??C tolerates cabin temps, built-in protection prevents burnout. An interior lighting firm sold 50,000 units, getting products to market 3 weeks faster.
• Automotive Electronics (Commercial Vehicle Lighting): 36V input handles 24V truck batteries, 95% efficiency cuts heat. A commercial lighting firm sold 35,000 units to truck makers, saving $90k yearly in inventory.
• Automotive Electronics (Turn Signals): Over-current protection avoids damage, adjustable current matches LED brightness. A signal light firm sold 42,000 units, reducing warranty costs by 62%.

Domande frequenti (FAQ)

Why is the 9V?C36V input range important for commercial vehicle lighting?

Commercial trucks use 24V batteries, while passenger cars use 12V??narrow-input (9V?C18V) drivers only work with cars, requiring separate 24V drivers for trucks. This adds 30% more SKUs and $1.80 per unit in inventory costs. The 9V?C36V range works for both. A commercial lighting engineer said: ??Our old drivers needed 2 SKUs for cars/trucks??this model needs 1. We cut inventory costs by 25%, saved $90k yearly, and won a $2.2M truck OEM contract that wanted a unified driver solution.??

How does 95% efficiency extend automotive LED lifespan?

LEDs degrade faster with excess heat??low-efficiency (88%) drivers waste 12% of power as heat, shortening LED lifespan by 22% and causing 18% warranty claims. 95% efficiency cuts waste to 5%, keeping LEDs cool. A headlight OEM said: ??Our old 88% drivers made headlights fail in 4 years??this 95% model extends life to 5.2 years. Warranty claims dropped from 18% to 6.3%, saving $117k yearly and keeping a $3.5M car OEM contract.??

What value does the HSOP8 package add for LED driver PCB design?

Basic SOP8 packages lack heat sinks, so engineers need to add external heat spreaders ($0.75 per unit) and extra PCB space??delaying design by 3 weeks and adding $37,500 yearly for 50,000 units. The HSOP8??s built-in heat sink eliminates this. An interior lighting engineer said: ??Our old SOP8 designs took 15 weeks??this HSOP8 model takes 12 weeks. We launched ambient lighting 3 weeks early, grew market share by 18%, and saved $37.5k yearly on heat spreaders.??

Why is adjustable output current useful for taillight designs?

Taillights use 1 LED for running lights and 5 LEDs for brake lights??fixed-current drivers need 2 separate ICs, adding $1.20 per unit and 50% more PCB space. Adjustable 1.2A current uses 1 driver for both. A taillight OEM said: ??Our old fixed-current drivers needed 2 ICs per taillight??this adjustable model needs 1. We cut component count by 75%, saved $60k yearly for 50,000 units, and made taillights 30% smaller to fit new car designs.??

How does AEC-Q100 Grade 2 compliance benefit exterior vehicle lighting?

Exterior lighting faces extreme temps: -40??C (winter) to +125??C (summer engine heat)??non-compliant drivers fail in 18% of cases, causing $180k yearly in warranties. AEC-Q100 Grade 2 requires 1,000+ hours of stress testing, ensuring durability. An exterior lighting engineer said: ??Our old non-compliant drivers failed 18% of the time??this Grade 2 model fails 2.1%. We saved $117k in warranties and became a preferred supplier for a global automaker, as their lighting needs to work in all climates.??