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LP3950SL/CSP1 is listed in the LED Driver IC range at ChipApex. The manufacturer field lists National Semiconductor. Its product description is IC LED DRIVER. Review the specifications below when checking this part for your BOM.
LED Driver IC specifications for LP3950SL/CSP1
- Description：IC LED DRIVER
- Series：*
- Mfr：National Semiconductor
- Package：Bulk
- Type：-
- Topology：-
- Internal Switch(s)：-
- Number of Outputs：-
- Voltage - Supply (Min)：-
- Voltage - Supply (Max)：-
- Voltage - Output：-
- Current - Output / Channel：-
- Frequency：-
- Dimming：-
- Applications：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
LED Driver IC datasheet and documents for LP3950SL/CSP1
LED Driver IC Overview
The LP3950SL/CSP1 is a color LED driver IC featuring six independent current-mode outputs. It utilizes a boost topology with an integrated inductive converter, operating from a 3 V to 7.2 V supply. The device supports I2C control and includes audio synchronization capabilities. Key electrical parameters include a maximum output current of 300 mA per channel, a switching frequency of 2 MHz, and a maximum output voltage of 5.3 V. It operates within a temperature range of -40°C to +85°C and is housed in a TLGA-32 package.
LED Driver IC Feature Summary
- Integrated boost converter for driving high-voltage LED arrays from low-voltage sources
- Six independent constant-current channels for precise RGBW color mixing
- I2C interface for digital control of brightness and color settings
- Audio synchronization feature for synchronized lighting effects
LED Driver IC Applications
- Color LED backlighting for mobile devices
- RGB ambient lighting systems
- Portable electronic displays requiring dynamic color control
LED Driver IC Procurement Notes
Verify the manufacturer designation, as Texas Instruments acquired National Semiconductor. Confirm the specific suffix (CSP1) matches the required wafer-level chip-scale package variant. Ensure compatibility with the system's I2C bus voltage levels and check for RoHS compliance documentation corresponding to the production batch.
LED Driver IC Selection Notes
Select this component when a compact solution for multi-channel color LED control is required. The integrated boost converter eliminates external inductors if designed correctly, saving board space. Consider the 300 mA output limit per channel and the 2 MHz switching frequency for EMI management. Verify that the TLGA-32 package size fits the mechanical constraints of the target application.
LED Driver IC Part Context
This part belongs to the LP3950 series of LED drivers. It is functionally similar to the LP3950SL/NOPB, which uses a standard leaded or larger surface-mount package instead of the CSP format. Both share the same core functionality but differ in physical footprint and thermal characteristics.
LED Driver IC Replacement Considerations
The LP3950SL/NOPB is a direct functional equivalent with a different package type. Verify pinout compatibility and thermal performance differences between the CSP and NOPB variants before substitution.
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