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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 LM3409QMY/NOPB is an automotive-grade PFET buck controller designed for high-power LED drivers. It operates within a 6 V to 42 V input voltage range and supports adjustable switching frequencies from 300 kHz to 1 MHz. The device delivers up to 5 A output current in a single-channel constant current configuration. Housed in a 10-MSOP-PowerPad package, it functions across a temperature range of -40°C to +125°C. Certified under AEC-Q100 standards, the IC features adjustable switch frequency, enable/shutdown control, precision dimming capabilities, and thermal shutdown protection.
Feature Summary
- AEC-Q100 qualified for automotive reliability
- Integrated precision dimming control
- Adjustable switching frequency operation
- Built-in thermal shutdown protection
Applications
- Automotive high-power LED headlight systems
- LED lighting driver circuits
- PFET buck current regulators
Procurement Notes
Verify component authenticity through authorized Texas Instruments channels or certified distributors. Confirm that the part number matches the specific Q1 automotive qualification requirements. Check datasheet revisions to ensure compatibility with design specifications. Validate packaging integrity upon receipt to prevent moisture damage due to humidity sensitivity.
Selection Notes
Select this controller when designing automotive LED applications requiring robust PFET buck regulation. Ensure the input voltage range aligns with vehicle power systems. Consider the 10-MSOP-PowerPad package for thermal management needs. Verify that the required switching frequency falls within the adjustable 300 kHz to 1 MHz range.
Part Context
This component belongs to the LM3409 series of P-FET buck controllers. It is specifically engineered for high-power LED driving applications. The Q1 suffix indicates automotive-grade qualification. The NOPB designation confirms lead-free and RoHS compliance. It serves as a core control element in efficient LED lighting solutions.
Replacement Considerations
Compatible variants include LM3409QMYX/NOPB and LM3409QMY-NOPB. These parts share identical electrical characteristics and pinout configurations. Verify package compatibility before substitution. Ensure all replacements maintain the same automotive qualification status.
