Infineon TDA387400000AUMA1 Automotive LED Driver IC, HSOP8 for Vehicle Exterior Lighting

Infineon TDA387400000AUMA1 Automotive LED Driver Overview for B2B Vehicle Lighting

The Infineon TDA387400000AUMA1 is a high-reliability, automotive-grade LED Driver IC??engineered for B2B applications requiring consistent LED power, cross-vehicle battery compatibility, and thermal efficiency for Automotive Electronics. It targets critical exterior lighting systems: heavy-duty truck headlights, passenger car LED low/high beams, and commercial vehicle taillights. Key integrations include: 8V?C36V input range (supports 12V passenger cars and 24V commercial trucks), 1.5A maximum output current (powers multi-LED arrays), 96% peak efficiency (minimizes power loss and heat buildup), built-in LED open/short-circuit protection, HSOP8 (Heat Sink Small Outline Package, 8-pin) surface-mount package, and -40??C to +125??C operating temperature??delivering reliable performance for LEDs in harsh on-road environments.

With 8V?C36V wide input range + 96% peak efficiency (tuned for cross-vehicle compatibility and LED longevity), it balances three critical B2B needs: multi-vehicle support (avoids separate drivers for cars/trucks), thermal management (reduces cooling costs), and durability (survives extreme weather). As part of Infineon??s automotive IC lineup??a series trusted by 122,000+ automotive lighting engineers and commercial vehicle 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 truck headlight manufacturer endorse it: ??This driver powers our 24V truck headlights. Its 36V input handles battery fluctuations, and 96% efficiency keeps LEDs cool??we hit 99.95% lighting uptime and 98% fleet operator satisfaction.?? For more durable automotive LED driver solutions, visit IC Manufacturer.

Technical Parameters of Infineon TDA387400000AUMA1

Key Technical Features of TDA387400000AUMA1 LED Driver IC

• 8V?C36V Wide Input Range: Cross-vehicle compatibility. A commercial OEM noted: ??Works with 12V cars and 24V trucks??we cut driver SKUs from 2 to 1, saving $120,000 yearly in inventory costs.??
• 96% Peak Efficiency: Extends LED life. A truck lighting firm shared: ??96% efficiency vs. 89% drivers cuts heat??LED lifespan rose by 35%, dropping headlight warranty claims by 70%.??
• HSOP8 Thermal Package: Lowers cooling costs. A passenger car OEM confirmed: ??Built-in heat sink eliminates external heat spreaders??cooling component costs fell by 25%, saving $60,000 yearly.??
• 1.5A High Output Current: Powers bright LEDs. A headlight manufacturer said: ??1.5A drives 8-LED high beams??no need for 2 drivers per light. PCB space saved by 40%, fitting tighter front-end designs.??
• 4-in-1 Protection Features: Prevents failures. A fleet supplier explained: ??OTP/OCP/LED fault protection stopped 99% of lighting outages??fleet downtime fell by 80%, pleasing logistics clients.??

Advantages vs. Typical Alternatives

Compared to narrow-input LED drivers (only 12V), 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 Cross-Vehicle Support Than Narrow-Input Drivers: Narrow-input (8V?C18V) drivers only work with 12V cars, forcing commercial OEMs to use separate 24V drivers??adding $2.40 per unit in inventory costs and 50% more SKUs. The 8V?C36V range works for both. A commercial vehicle engineer said: ??Our old drivers needed 2 SKUs for cars/trucks??this model needs 1. We cut inventory costs by 30%, saved $120k yearly for 50,000 units, and won a $2.8M contract with a global truck maker that wanted a unified lighting solution.??

2. Longer LED Life Than Low-Efficiency Drivers: Low-efficiency (89%) drivers waste 11% of power as heat, shortening LED lifespan by 25% and causing 22% more headlight warranty claims. The 96% efficiency cuts waste to 4%. A truck lighting OEM shared: ??Our old 89% drivers made headlights fail in 3.5 years??this 96% model extends life to 4.7 years. Warranty claims dropped from 22% to 6.6%, saving $140k yearly and retaining a $4M fleet contract, as operators hate roadside headlight repairs.??

3. Lower Cooling Costs Than Basic-Package Drivers: Basic SOP8 drivers need external heat spreaders ($0.80 per unit) and extra PCB cooling traces, adding $40,000 yearly for 50,000 units. The HSOP8??s built-in heat sink eliminates this. A passenger car OEM confirmed: ??Our old SOP8 drivers needed $0.80 heat spreaders??this HSOP8 model doesn??t. We cut cooling costs by 25%, saved $60k yearly, and launched a slimmer headlight design that fit 2024 car models, growing market share by 22%.??

Typical Applications

• Automotive Electronics (Commercial Truck Headlights): 8V?C36V works with 24V batteries, 96% efficiency extends LED life. A truck OEM sold 70,000 units, cutting warranty claims by 70%.
• Automotive Electronics (Passenger Car LED High Beams): 1.5A powers 8-LED arrays, HSOP8 saves cooling costs. A car lighting firm sold 90,000 units, reducing PCB space by 40%.
• Automotive Electronics (Commercial Vehicle Taillights): -40??C to +125??C tolerates extreme weather, 4-in-1 protection prevents outages. A fleet supplier sold 55,000 units, lowering downtime by 80%.
• Automotive Electronics (Bus Exterior Lighting): 24V input compatibility, 96% efficiency cuts power use. A bus OEM sold 30,000 units, saving $35k yearly in energy costs for fleet operators.
• Automotive Electronics (Off-Road Vehicle Headlights): 36V input handles battery spikes, rugged temp range survives mud/snow. An off-road firm sold 25,000 units, with 99.9% lighting uptime.

Frequently Asked Questions (FAQ)

Why is the 8V?C36V input range important for commercial truck lighting?

Commercial trucks use 24V batteries, while passenger cars use 12V??narrow-input (8V?C18V) drivers only work with cars, forcing OEMs to stock separate 24V drivers. This adds 50% more SKUs and $2.40 per unit in inventory costs. The 8V?C36V range works for both. A truck engineer said: ??Our old drivers needed 2 SKUs??this model needs 1. We saved $120k yearly in inventory, won a $2.8M global truck contract, and simplified our supply chain by 30%.??

How does 96% efficiency benefit fleet operators?? headlight maintenance?

Fleet operators rely on long-lasting headlights??low-efficiency (89%) drivers shorten LED life by 25%, leading to frequent roadside repairs. 96% efficiency cuts heat, extending life by 35%. A fleet supplier said: ??Our old 89% drivers caused 22% warranty claims??this 96% model has 6.6%. Fleet downtime fell by 80%, and a logistics client renewed their $1.2M contract early, as they saved $50k yearly in repair costs.??

What value does the HSOP8 package add for passenger car headlight designs?

Passenger car headlights need slim designs??basic SOP8 drivers require external heat spreaders ($0.80 per unit) and extra PCB space, making headlights too bulky. The HSOP8??s built-in heat sink eliminates this. A car lighting engineer said: ??Our old SOP8 headlights were 15mm thick??this HSOP8 model is 11mm. It fit 2024 car designs, we won a $3M contract with a luxury automaker, and saved $60k yearly on heat spreaders.??

Why is 1.5A output current useful for LED high beams?

Modern LED high beams use 8+ LEDs for brightness??low-current (1A) drivers need 2 ICs per light, adding $1.50 per unit and 50% more PCB space. 1.5A powers 8 LEDs with 1 driver. A headlight OEM said: ??Our old 1A drivers needed 2 per high beam??this 1.5A model needs 1. We cut component costs by 35%, saved $75k yearly for 50,000 units, and made high beams 40% smaller to fit new car front ends.??

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

Off-road vehicles face -40??C (winter snow) to +125??C (desert heat)??non-compliant drivers fail in 15% of cases, causing lighting outages. AEC-Q100 Grade 2 tests ensure survival in these temps. An off-road engineer said: ??Our old non-compliant drivers failed 15% of the time??this Grade 2 model fails 0.1%. We retained a $1.8M contract with an off-road rental firm, as their vehicles rarely have lighting issues in extreme terrain.??