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LM3404HVMA/NOPB
Texas Instruments
IC LED DRIVER RGLTR PWM 1A 8SOIC
2254 Pcs New Original In Stock
LED Driver IC 1 Output DC DC Regulator Step-Down (Buck) PWM Dimming 1A 8-SOIC
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*Quantity
Minimum 1
Minimum 1
5.0 / 5.0
- (518 Ratings)
LM3404HVMA/NOPB
Product Overview
1328589
DiGi Electronics Part Number
LM3404HVMA/NOPB-DGManufacturer
Texas Instruments
LM3404HVMA/NOPB
Description
IC LED DRIVER RGLTR PWM 1A 8SOICInventory
2254 Pcs New Original In Stock
LED Driver IC 1 Output DC DC Regulator Step-Down (Buck) PWM Dimming 1A 8-SOIC
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
Warranty & Returns
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LM3404HVMA/NOPB Technical Specifications
Category
Power Management (PMIC), LED Drivers
Packaging
Tube
Series
-
Product Status
Active
Type
DC DC Regulator
Topology
Step-Down (Buck)
Internal Switch(s)
Yes
Number of Outputs
1
Voltage - Supply (Min)
6V
Voltage - Supply (Max)
75V
Voltage - Output
73V
Current - Output / Channel
1A
Frequency
1MHz
Dimming
PWM
Applications
Lighting
Operating Temperature
-40°C ~ 125°C (TJ)
Grade
Automotive
Mounting Type
Surface Mount
Package / Case
8-SOIC (0.154", 3.90mm Width)
Supplier Device Package
8-SOIC
Base Product Number
LM3404
Datasheet & Documents
Manufacturer Product Page
LM3404HVMA/NOPB Specifications
Design Resources
LM3404 Ref Design RD-134
HTML Datasheet
LM3404HVMA/NOPB-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
LM3404HVMANOPB
-LM3404HVMA-NDR
-LM3404HVMA/NOPB-DG
TEXTISLM3404HVMA/NOPB
2156-LM3404HVMA/NOPB-TI
*LM3404HVMA/NOPB
Standard Package
95
Alternative Parts
PART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
Leur packaging écologique montre leur sérieux, et les prix sont très accessibles.
Dec 02, 2025
配送が非常に迅速で、注文から2日で手元に届きました。
Dec 02, 2025
配達の速さと商品の良さに大変満足しています。とてもおすすめです！
Dec 02, 2025
お得な価格で良質な商品を購入できて大満足です。スタッフもフレンドリーで、初めての方でも安心して買い物できると思います。
Dec 02, 2025
I've never encountered any defects with DiGi Electronics products, thanks to their rigorous quality control.
Dec 02, 2025
DiGi Electronics ensures that pricing and delivery are handled with utmost transparency.
Dec 02, 2025
Every interaction with their team has been positive, thanks to their friendly and affordable approach.
Dec 02, 2025
Their extensive inventory helps us reduce downtime in our manufacturing process.
Dec 02, 2025
Their online platform provides impressive value, combining affordability with a seamless experience.
Dec 02, 2025
DiGi's customer care team is dedicated and always accessible for support.
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Frequently Asked Questions (FAQ)
What are the key design risks when using the LM3404HVMA/NOPB in high-voltage automotive lighting applications, and how can I mitigate them?
The LM3404HVMA/NOPB operates up to 75V input, making it suitable for 48V mild-hybrid systems, but voltage transients in automotive environments (e.g., load dump up to 40V or higher) can stress the IC. Ensure input protection with a TVS diode rated for ISO 7637-2 pulses and use an input bulk capacitor with low ESR to handle ripple. Also, verify that the inductor’s saturation current exceeds peak switch current under worst-case load to avoid core saturation and thermal runaway. Always validate thermal performance on your PCB layout—poor copper pour or vias can lead to localized hotspots despite the 125°C junction rating.
Can I replace the LM3404HVMA/NOPB with a cheaper buck LED driver like the AL8805 or MP3306DJ in a 12V automotive headlight design, and what trade-offs should I expect?
While the AL8805 and MP3306DJ offer lower cost and smaller footprints, they lack the LM3404HVMA/NOPB’s 75V input capability and automotive-grade qualification (AEC-Q100). The AL8805 maxes out at 40V, risking failure during load-dump events, and the MP3306DJ is only rated to 30V. Additionally, neither supports true PWM dimming down to 0% duty cycle as cleanly as the LM3404HVMA/NOPB. If your application requires robustness in harsh environments or wide input ranges, sticking with the LM3404HVMA/NOPB is safer; otherwise, for stable 12V systems with tight BOM constraints, the alternatives may work—but require rigorous transient testing.
How does PCB layout affect the reliability of the LM3404HVMA/NOPB in high-frequency (1MHz) buck converter designs, and what specific routing practices should I follow?
At 1MHz switching frequency, parasitic inductance and capacitance significantly impact efficiency and EMI. Keep the high-current loop (VIN → IC → inductor → LED → GND) as short as possible—place the input capacitor within 5mm of the VIN and GND pins. Use a solid ground plane under the IC and connect the exposed thermal pad directly to it with multiple vias. Avoid routing sensitive analog traces (like the DIM pin) near the SW node. Poor layout can cause voltage overshoot, increased switching losses, and false triggering of protection circuits. Thermal vias under the package are critical: use at least six 0.3mm vias to ensure heat dissipation meets the -40°C to 125°C operating range.
Is the LM3404HVMA/NOPB suitable for dimmable interior automotive LED lighting with analog dimming, or is PWM the only reliable option?
The LM3404HVMA/NOPB supports both PWM and analog dimming, but PWM is strongly recommended for consistent brightness control across temperature and LED forward voltage variations. Analog dimming (via the DIM pin voltage) can cause color shift in white LEDs due to current-dependent chromaticity and reduced efficiency at low currents. If analog dimming is required, limit the adjustment range to 30–100% of full scale to maintain regulation stability. For interior lighting where smooth dimming is critical, use a clean PWM signal (>100Hz to avoid flicker) with rise/fall times under 100ns to prevent shoot-through in the internal switch. Always decouple the DIM pin with a 10nF capacitor to suppress noise.
What reliability concerns should I consider when designing with the LM3404HVMA/NOPB in under-hood automotive applications exposed to temperature cycling and vibration?
The LM3404HVMA/NOPB is AEC-Q100 qualified and rated for -40°C to 125°C junction temperature, but system-level reliability depends on PCB and component selection. Use ceramic capacitors (X7R or better) rated for 100V to handle voltage derating over temperature. Ensure all solder joints—especially under the 8-SOIC package—are inspected for voids, as thermal cycling can cause fatigue. Avoid placing the IC near high-vibration sources; if unavoidable, reinforce with conformal coating. Also, validate long-term performance under thermal shock testing (-40°C ↔ 125°C, 1000 cycles) to confirm solder joint integrity. The MSL 1 rating means no baking is needed, but proper storage and handling during assembly remain critical to prevent moisture-related failures.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
LM3404HVMA/NOPB CAD Models
Texas Instruments LM3404HVMA/NOPB PCB symbols & footprints
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