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Product Detailed Parameters
- Description：IC LED DRVR LIN I2C 38MA 24SOP
- Series：-
- Mfr：Lumissil Microsystems
- Package：Tube
- Type：Linear
- Topology：-
- Internal Switch(s)：Yes
- Number of Outputs：18
- Voltage - Supply (Min)：2.7V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：-
- Current - Output / Channel：38mA
- Frequency：-
- Dimming：I2C
- Applications：-
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：24-SOIC (0.295", 7.50mm Width)
- Supplier Device Package：24-SOP
- Grade：-
- Qualification：-
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Overview
The IS31FL3218-GRLS2 is an 18-channel LED driver IC from Lumissil Microsystems, designed for driving LEDs with independent PWM control per channel. It operates within a supply voltage range of 2.7 V to 5.5 V and delivers up to 38 mA output current per channel. The device supports Boost and Buck topologies with adjustable output voltage. It features I2C control interface and functions reliably across an operating temperature range of -40°C to +85°C. Packaged in a QFN-24 format, it is suitable for surface mount applications requiring efficient LED lighting management.
Feature Summary
- Provides 18 constant current channels with independent PWM control for precise LED regulation
- Integrates I2C communication interface for simplified system control and data transmission
- Supports flexible power conversion topologies including both Boost and Buck configurations
Applications
- General LED lighting systems requiring multi-channel control
- Automotive interior or exterior lighting modules
- Consumer electronics display backlighting applications
Procurement Notes
Verify the specific suffix GRLS2 against official Lumissil documentation to confirm package type and tape/reel specifications. Ensure compatibility with your PCB footprint for the QFN-24 package. Confirm that the I2C address settings align with your system design requirements before finalizing procurement orders.
Selection Notes
Select this component when an 18-channel solution with independent PWM dimming is required. It is appropriate for designs needing both Boost and Buck capabilities within a single IC. Consider the 38 mA per channel limit and the 2.7 V to 5.5 V input range to ensure it meets the electrical constraints of the target LED array.
Part Context
This part belongs to the IS31FL3218 series of LED drivers manufactured by Lumissil Microsystems. The series focuses on providing integrated solutions for driving multiple LEDs with high precision. The GRLS2 suffix typically denotes specific packaging and handling characteristics distinct from other variants in the same functional family.
Replacement Considerations
Check Lumissil datasheets for direct pin-to-pin compatible alternatives within the IS31FL series. Verify if other models offer higher channel counts or different current ratings if system requirements have changed. Ensure any substitute maintains the same QFN-24 package dimensions and thermal performance.
