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Product Detailed Parameters
- Description：IC LED DRIVER CTRLR PWM 10HVSSOP
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：DC DC Controller
- Topology：Step-Down (Buck)
- Internal Switch(s)：No
- Number of Outputs：1
- Voltage - Supply (Min)：6V
- Voltage - Supply (Max)：42V
- Voltage - Output：-
- Current - Output / Channel：-
- Frequency：-
- Dimming：Analog, PWM
- Applications：-
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：10-PowerTFSOP, 10-MSOP (0.118", 3.00mm Width)
- Supplier Device Package：10-HVSSOP
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The LM3409QMYX/NOPB is a P-FET buck controller designed for high-power LED drivers, featuring AEC-Q100 automotive qualification. It operates within a -40°C to +125°C temperature range and utilizes a 10-MSOP-PowerPad package. The device supports adjustable switch frequency, precision dimming control via analog or PWM signals, and includes enable/shutdown functionality. Integrated thermal shutdown ensures protection against overheating conditions during operation.
Feature Summary
- Automotive-grade P-FET buck controller optimized for high-power LED applications
- Supports precision analog and PWM dimming control with enable/shutdown capability
- Integrated thermal shutdown protection for enhanced system reliability
Applications
- Automotive exterior lighting systems
- High-power LED headlamp modules
- LED fog light drivers
- Automotive interior illumination circuits
Procurement Notes
Verify the specific suffix 'Q' confirms AEC-Q100 automotive qualification status. Ensure the 'MYX' designation matches the required MSOP-PowerPad-10 package variant. Confirm RoHS compliance details are current. Validate that the ordering part number aligns exactly with the intended functional and packaging specifications before procurement.
Selection Notes
Select this component when an automotive-rated, high-voltage PFET buck controller is required for LED driving. It is suitable for designs needing precise dimming control and robust thermal management. Consider the 42V input limit and single-output configuration. Evaluate compatibility with external P-FET selection based on the controller's drive capabilities and switching frequency requirements.
Part Context
This part belongs to the LM3409 family of P-FET buck controllers from Texas Instruments. It is specifically the automotive-qualified version (indicated by 'Q') of the standard LM3409. The family provides solutions for high-power LED applications requiring wide input voltage ranges and efficient current regulation in compact packages.
Replacement Considerations
LM3409QMY/NOPB and LM3409QMYX-NOPB are functionally equivalent variants within the same series. Verify package type consistency between MSOP-PowerPad-10 and HVSSOP-10 if substituting. Ensure the replacement maintains AEC-Q100 qualification and identical pinout compatibility for direct board-level integration.
