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Product Detailed Parameters
- Description：IC LED DRVR RGLTR PWM 8HVSSOP
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：DC DC Regulator
- Topology：Step-Down (Buck)
- Internal Switch(s)：Yes
- Number of Outputs：1
- Voltage - Supply (Min)：4.5V
- Voltage - Supply (Max)：30V
- Voltage - Output：-
- Current - Output / Channel：350mA
- Frequency：300kHz ~ 1MHz
- Dimming：PWM
- Applications：Lighting
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：8-PowerTSSOP, 8-MSOP (0.118", 3.00mm Width)
- Supplier Device Package：8-HVSSOP
- Grade：-
- Qualification：-
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Overview
The LM3407MYX/NOPB is a constant current LED driver IC from Texas Instruments, designed for high-power LED applications. It utilizes a buck topology to regulate output current at 350 mA. The device operates within an input voltage range of 4.5 V to 30 V and supports adjustable switching frequencies between 300 kHz and 1 MHz. It is housed in an 8-MSOP-PowerPAD package and functions reliably across a temperature range of -40°C to +125°C.
Feature Summary
- Provides precise constant current regulation for high-power LEDs
- Supports adjustable switching frequency for optimized design flexibility
- Integrates thermal shutdown protection for enhanced reliability
Applications
- High-power LED lighting systems
- General illumination drivers
- Automotive exterior lighting components
Procurement Notes
Verify the specific suffix 'MYX' indicates tape-and-reel packaging when ordering. Confirm that the 'NOPB' designation ensures lead-free compliance and RoHS adherence as per manufacturer specifications. Cross-reference the datasheet revision date to ensure compatibility with current design requirements and environmental standards.
Selection Notes
Select this component for designs requiring a compact solution for driving single or series-connected high-power LEDs. The fixed 350 mA output simplifies thermal management calculations compared to variable current options. Ensure the external inductor and capacitor values are selected to support the desired switching frequency within the specified operating temperature range.
Part Context
This part belongs to the LM3407 family of LED drivers, which are specialized for buck converter topologies. It serves as a core power management component in modern LED architectures, replacing discrete transistor solutions. The integration of control logic and power switches reduces board space and improves overall system efficiency.
Replacement Considerations
Direct substitutes include LM3407MY/NOPB (tube packaging) and LM3407MYX-NOPB. Verify pinout compatibility and electrical parameters before substitution. Alternative families like LM3406 offer higher current capabilities but require different thermal and layout considerations.
