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LM3409QHVMYX/NOPB
Texas Instruments
IC LED DRIVER CTRLR PWM 10HVSSOP
5222 Pcs New Original In Stock
LED Driver IC 1 Output DC DC Controller Step-Down (Buck) Analog, PWM Dimming 10-HVSSOP
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*Quantity
Minimum 1
Minimum 1
5.0 / 5.0
- (200 Ratings)
LM3409QHVMYX/NOPB
Product Overview
1315278
DiGi Electronics Part Number
LM3409QHVMYX/NOPB-DGManufacturer
Texas Instruments
LM3409QHVMYX/NOPB
Description
IC LED DRIVER CTRLR PWM 10HVSSOPInventory
5222 Pcs New Original In Stock
LED Driver IC 1 Output DC DC Controller Step-Down (Buck) Analog, PWM Dimming 10-HVSSOP
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
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LM3409QHVMYX/NOPB Technical Specifications
Category
Power Management (PMIC), LED Drivers
Packaging
-
Series
-
Product Status
Active
Type
DC DC Controller
Topology
Step-Down (Buck)
Internal Switch(s)
No
Number of Outputs
1
Voltage - Supply (Min)
6V
Voltage - Supply (Max)
75V
Voltage - Output
-
Current - Output / Channel
-
Frequency
-
Dimming
Analog, PWM
Applications
-
Operating Temperature
-40°C ~ 125°C (TJ)
Grade
Automotive
Qualification
AEC-Q100
Mounting Type
Surface Mount
Package / Case
10-PowerTFSOP, 10-MSOP (0.118", 3.00mm Width)
Supplier Device Package
10-HVSSOP
Base Product Number
LM3409
Datasheet & Documents
HTML Datasheet
LM3409QHVMYX/NOPB-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
3 (168 Hours)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Standard Package
3,500
Alternative Parts
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MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
Livraison très rapide, les composants ont montré une excellente endurance dans mes tests, leur durabilité est remarquable.
de desembre 02, 2025
J'apprécie leur communication claire concernant les coûts, ce qui facilite notre collaboration.
de desembre 02, 2025
Leurs prix sont très compétitifs et leurs emballages sont respectueux de notre planète.
de desembre 02, 2025
日常的に安心して購入できる信頼のお店です。
de desembre 02, 2025
The website is well-organized, allowing me to easily access troubleshooting guides and FAQs.
de desembre 02, 2025
Di Digi Electronics’ packaging is not only robust but creatively designed, making unboxing a delight.
de desembre 02, 2025
I highly appreciate the consistent quality and prompt delivery from DiGi Electronics.
de desembre 02, 2025
I appreciated that my order was dispatched within hours of purchase.
de desembre 02, 2025
The customer service team is very attentive and caring.
de desembre 02, 2025
Their team provides prompt and effective solutions whenever I need support.
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Frequently Asked Questions (FAQ)
When designing in the LM3409QHVMYX/NOPB for an automotive LED lighting application, what are the key thermal risks at elevated junction temperatures and how can they be mitigated in a sealed enclosure?
The LM3409QHVMYX/NOPB supports operation up to 125°C (TJ), but in sealed automotive enclosures, heat buildup from ambient conditions and inductor losses can quickly approach this limit. Since the device lacks internal switches, external MOSFET selection and layout significantly impact thermal performance. To mitigate risk: use a low RDS(on) MOSFET with adequate SOA, ensure a solid thermal ground plane, incorporate vias under the exposed pad, and limit trace lengths for high-current paths. Simulate worst-case power dissipation under pulsed load conditions and consider derating output current above 105°C ambient to maintain reliability and avoid thermal shutdown glitches in safety-critical lighting systems.
Can the LM3409QHVMYX/NOPB safely replace the LT3743EFE#PBF in a high-current LED streetlight design, and what are the main performance trade-offs?
While both the LM3409QHVMYX/NOPB and LT3743EFE#PBF drive high-power LEDs, direct replacement is not recommended without redesign. The LT3743EFE#PBF integrates switches and supports higher switching frequencies (up to 2 MHz), enabling smaller magnetics, while the LM3409QHVMYX/NOPB is a controller requiring external MOSFETs and typically operates at lower frequencies. Using the LM3409QHVMYX/NOPB instead increases board space and design complexity but offers greater flexibility in current scaling and better thermal management in distributed systems. Ensure your MOSFETs can handle peak LED currents and verify PWM dimming performance—LT3743EFE#PBF has superior transient response for fast dimming, whereas the LM3409QHVMYX/NOPB may require additional loop compensation for comparable behavior.
What design considerations are critical when using the LM3409QHVMYX/NOPB in a buck converter for wide input voltage applications up to 75V?
When operating the LM3409QHVMYX/NOPB near its 75V max input, risks include voltage transients exceeding breakdown limits and poor regulation due to delay in feedback response. Ensure input transient protection with a TVS diode rated above 75V but below the LM3409QHVMYX/NOPB's absolute maximum. Use a fast-response feedback network with low parasitic capacitance, and select an external MOSFET with a VDS rating ≥100V to handle ringing. Also, layout parasitics in high dI/dt paths can cause shoot-through—minimize loop area between gate driver, MOSFET, and return. Simulate the startup behavior under load to ensure stable current regulation, especially in cold-crank automotive conditions where Vin drops rapidly.
How does the AEC-Q100 qualification of the LM3409QHVMYX/NOPB impact long-term reliability in automotive under-hood LED systems?
The AEC-Q100 qualification of the LM3409QHVMYX/NOPB ensures stress-tested reliability across temperature cycling, humidity, and voltage extremes—critical for under-hood environments where thermal swings from -40°C to 125°C are common. However, qualification does not guarantee fault-free operation; design-in risks include solder joint fatigue due to CTE mismatch and contamination in non-conformally coated assemblies. To maximize reliability: follow IPC-7095 rework guidelines, use no-clean solder paste compatible with MSL3 handling, and implement burn-in testing at temperature extremes with load cycling. Monitor for parametric drift in the current sense threshold over time, especially in high-humidity conditions where the 168-hour MSL rating limits floor life without baking.
What are the key differences between the LM3409QHVMYX/NOPB and the LM3409MY/NOPB, and when should I specify the automotive-grade version?
The LM3409QHVMYX/NOPB is the AEC-Q100-qualified automotive-grade variant, while the LM3409MY/NOPB is the commercial version. The Q-grade LM3409QHVMYX/NOPB includes enhanced testing for defect rates (<100 DPPM), tighter process controls, and extended temperature support up to 125°C junction—critical for safety-compliant and long-lifetime systems. Choose the LM3409QHVMYX/NOPB when designing for production automotive or industrial environments subject to shock, thermal cycling, or where field failure carries high liability risk. Also, prefer the Q-grade version when sourcing stability is a concern—TI maintains longer lifecycle support for automotive-qualified parts, reducing risk of obsolescence mid-production.
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.
LM3409QHVMYX/NOPB CAD Models
Texas Instruments LM3409QHVMYX/NOPB PCB symbols & footprints
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