Infineon TDA386400000AUMA1 Automotive LED Driver, PG-TSDSO-14 for Vehicle Lighting Systems

Infineon TDA386400000AUMA1 Automotive LED Driver Overview for B2B Vehicle Lighting Control

The Infineon TDA386400000AUMA1 is a high-reliability, automotive-grade LED driver??engineered for B2B applications requiring stable constant-current power for Automotive Electronics lighting systems. It targets essential vehicle lighting: daytime running lights (DRLs), tail lamps, turn signals, and interior dome lighting. Key integrations include: 400mA fixed constant current (guarantees consistent LED brightness), 8V?C36V wide input range (compatible with 12V passenger cars and 24V commercial trucks), 93% peak efficiency (minimizes power loss and thermal stress), built-in over-voltage (OVP), over-current (OCP), thermal shutdown (TSD), and LED open/short-circuit protection, PG-TSDSO-14 (Thin Shrink Dual Small Outline, 14-pin) surface-mount package, and -40??C to +125??C operating temperature??delivering reliable performance for LEDs in harsh automotive environments.

With 400mA constant current + 8V?C36V wide input range (tuned for LED brightness consistency and cross-vehicle compatibility), it balances three critical B2B needs: lighting reliability (avoids uneven brightness), platform flexibility (works across car/truck models), and design efficiency (fits space-constrained lighting modules). As part of Infineon??s automotive LED driver lineup??a series trusted by 112,000+ 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 lighting controls), RoHS 3, and UL 94V-0 (package flammability).

Senior engineers at a leading global automotive lighting supplier endorse it: ??This driver powers our DRLs and tail lamps. Its 400mA constant current eliminates brightness drift, and 36V input handles truck battery spikes??we hit 99.95% lighting uptime and 96% automaker satisfaction.?? For more dependable automotive LED power solutions, visit IC Manufacturer.

Technical Parameters of Infineon TDA386400000AUMA1

Key Technical Features of TDA386400000AUMA1 LED Driver

• 400mA ??4% Constant Current: Ensures brightness consistency. A DRL manufacturer noted: ????4% accuracy eliminates DRL brightness mismatch??customer complaints dropped by 80%, saving $190,000 yearly in warranty costs.??
• 8V?C36V Wide Input Range: Cross-vehicle compatibility. A commercial truck OEM shared: ??Works with 12V cars and 24V trucks??we cut LED driver SKUs from 2 to 1, saving $120,000 yearly in inventory.??
• PG-TSDSO-14 Compact Package: Saves PCB space. An interior lighting firm confirmed: ??35% smaller than DIP14??our dome lighting PCBs shrank from 40mm2 to 26mm2, fitting tight ceiling cavities.??
• 93% Peak Efficiency: Extends LED life. A passenger car brand said: ??93% efficiency vs. 85% drivers cuts LED heat by 7??C??lifespan rose by 2.8 years, lowering replacement costs by 35%.??
• LED Open/Short-Circuit Protection: Prevents system damage. A turn signal supplier explained: ??Protection stopped 97% of lighting failures??roadside repairs for faulty turn signals dropped by 88%, saving fleet clients $42,000 yearly.??

Advantages vs. Typical Alternatives

Compared to narrow-input LED drivers (only 12V), low-accuracy constant-current drivers (cause brightness drift), and large-package drivers (need extra PCB space), this Infineon LED Driver solves critical B2B pain points??backed by real automotive lighting feedback:

1. Better Cross-Vehicle Support Than Narrow-Input Drivers: Narrow-input (8V?C18V) drivers only work with 12V cars, forcing commercial OEMs to stock separate 24V drivers??adding $2.50 per unit in inventory costs and 45% more SKUs. The 8V?C36V range works for both. A truck lighting engineer said: ??Our old drivers needed 2 SKUs??this model needs 1. We saved $120k yearly for 50,000 units and won a $3.2M contract with a global truck maker that wanted a unified LED lighting solution.??

2. More Consistent Brightness Than Low-Accuracy Drivers: Low-accuracy (??9%) constant-current drivers cause LED brightness mismatch (e.g., uneven DRLs), leading to 40% more customer complaints and $220,000 yearly in warranty costs. The ??4% accuracy eliminates this. A DRL supplier shared: ??Our old ??9% drivers had 40% brightness complaints??this ??4% model has 8%. We saved $190k in warranties and retained a $2.1M luxury car DRL contract, as buyers demand uniform lighting.??

3. Smaller Footprint Than Large-Package Drivers: DIP14 packages (19.05mm x 6.35mm) take up 35% more PCB space than PG-TSDSO-14, forcing interior lighting modules to exceed ceiling/dashboard size limits. The PG-TSDSO-14 enables miniaturization. An interior lighting engineer confirmed: ??Our old DIP14 dome modules were too big for 60% of new car ceilings??this PG-TSDSO-14 model fits. We won a $1.9M contract with a mainstream automaker, as their slim cabin designs require compact interior lighting.??

Typical Applications

• Automotive Electronics (LED DRLs): 400mA constant current ensures uniform brightness, 36V input handles truck battery spikes. A DRL firm sold 85,000 units, cutting warranty costs by 80%.
• Automotive Electronics (Commercial Truck Tail Lamps): 24V input compatibility, LED short-circuit protection prevents failures. A truck lighting firm sold 65,000 units, lowering roadside repairs by 88%.
• Automotive Electronics (Passenger Car Turn Signals): 93% efficiency reduces heat, PG-TSDSO-14 saves space. A turn signal supplier sold 75,000 units, extending LED lifespan by 2.8 years.
• Automotive Electronics (Interior Dome Lighting): -40??C to +125??C tolerance works in cold/hot cabins, 400mA powers medium-brightness LEDs. An interior firm sold 55,000 units, fitting 97% of ceiling layouts.
• Automotive Electronics (Off-Road Vehicle Auxiliary Lighting): 36V input handles battery spikes, TSD protects LEDs from desert heat. An off-road firm sold 35,000 units, with 99.8% lighting uptime.

Frequently Asked Questions (FAQ)

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

Commercial trucks use 24V batteries, which spike to 32V during jump-starts??narrow-input (18V max) drivers fail these spikes, causing LED dimming or shutdown. The 36V range protects lighting. A truck lighting engineer said: ??Our old 18V drivers caused 23% LED failures in trucks??this 36V model stops that. We saved $120k in inventory and won a $3.2M global truck contract, as fleet operators need reliable lighting during jump-starts.??

How does ??4% current accuracy improve LED DRL performance?

LED DRLs need uniform brightness for visibility??low-accuracy (??9%) drivers cause a 0.4?C0.9kcd brightness difference between left/right DRLs, leading to 40% customer complaints. ??4% accuracy limits difference to 0.3kcd. A DRL supplier said: ??Our old ??9% drivers had 40% complaints??this ??4% model has 8%. We saved $190k in warranties and kept a $2.1M luxury car contract, as their buyers reject uneven DRLs.??

What value does the PG-TSDSO-14 package add for interior dome lighting?

Modern car cabins have limited ceiling space for dome lighting??DIP14 packages take 35% more space than PG-TSDSO-14, making modules too big for 60% of new designs. PG-TSDSO-14 shrinks the module. An interior lighting engineer said: ??Our old DIP14 dome modules failed 60% of fit checks??this PG-TSDSO-14 model passes all. We won a $1.9M mainstream automaker contract, as their slim cabins need compact dome lighting that doesn??t crowd headliners.??

Why is 93% efficiency important for passenger car turn signals?

Passenger car turn signals are in enclosed housings??low-efficiency (85%) drivers waste 15% of power as heat, shortening LED lifespan by 2.1 years and increasing replacement costs. 93% efficiency cuts waste to 7%. A passenger car OEM said: ??Our old 85% drivers lasted 5.2 years??this 93% model lasts 8 years. Replacement costs dropped by 35%, saving $160k yearly and boosting customer satisfaction with longer-lasting turn signals.??

How does LED open/short-circuit protection benefit fleet vehicles?

Fleet vehicles rely on functional turn signals/tail lamps for safety??LED drivers without protection fail in 11% of open/short cases, causing roadside repairs and fines. This driver??s protection stops 97% of failures. A fleet lighting manager said: ??Open/short protection cut turn signal repairs by 88%??we saved $42k yearly in roadside service and avoided $10k in safety fines. This driver became our standard for all 4,500 fleet vans.??