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Product Detailed Parameters
- Description：IC LED DRIVER LINEAR PWM 48WQFN
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Linear
- Topology：Shift Register
- Internal Switch(s)：No
- Number of Outputs：6
- Voltage - Supply (Min)：12V
- Voltage - Supply (Max)：95V
- Voltage - Output：-
- Current - Output / Channel：-
- Frequency：1MHz
- Dimming：Analog, PWM
- Applications：Lighting
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：48-WFQFN Exposed Pad
- Supplier Device Package：48-WQFN (7x7)
- Grade：-
- Qualification：-
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Overview
The LM3463SQ/NOPB is a six-channel high-voltage constant current LED driver from Texas Instruments. It supports boost and buck topologies with an adjustable output voltage range up to 95 V. The device delivers up to 6 A of output current and operates at switching frequencies between 900 kHz and 1.15 MHz. Designed for robust performance, it functions within an extended temperature range of -40°C to +125°C. The component is housed in a WQFN-48 package.
Feature Summary
- Provides independent constant current regulation across six distinct channels
- Supports flexible power stage configurations including both boost and buck topologies
- Enables precise frequency synchronization via external resistor programming
Applications
- High-power LED lighting systems requiring multi-channel control
- Industrial illumination fixtures utilizing high-voltage LED arrays
- Automotive exterior lighting modules demanding wide operating temperature ranges
Procurement Notes
Verify the specific suffix against official Texas Instruments documentation to confirm exact pinout and thermal characteristics. Ensure compatibility with your PCB layout regarding the WQFN-48 package dimensions. Cross-reference the datasheet for absolute maximum ratings to prevent operational failure under transient conditions.
Selection Notes
Select this component when designing circuits that require simultaneous drive for multiple LED strings. Consider the 95 V maximum supply capability for applications involving series-connected LEDs. Evaluate the thermal dissipation requirements associated with the 6 A current capacity and the selected switching frequency.
Part Context
This part belongs to the LM3463 family of LED drivers manufactured by Texas Instruments. It is categorized under analog mixed-signal integrated circuits specifically designed for power management and lighting control applications. The NOPB suffix indicates compliance with RoHS standards and absence of lead-based materials.
Replacement Considerations
Consult official manufacturer substitution guides for verified equivalents. Generic cross-references may not match the specific six-channel architecture or high-voltage specifications required for direct replacement.
