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Product Detailed Parameters
- Description：6-RGB/18-CH LED DRIVER
- Series：-
- Mfr：Lumissil Microsystems
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Linear
- Topology：Constant Current
- Internal Switch(s)：No
- Number of Outputs：18
- Voltage - Supply (Min)：2.7V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：-
- Current - Output / Channel：27.5mA
- Frequency：-
- Dimming：I2C, PWM
- Applications：General Purpose
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：32-WFQFN Exposed Pad
- Supplier Device Package：32-QFN (4x4)
- Grade：-
- Qualification：-
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Overview
The IS31FL3018-QFLS4-TR is an 18-output linear constant current LED driver manufactured by Lumissil Microsystems. It features a 27.5mA per-channel output current capability and supports a supply voltage range of 2.7V to 5.5V. The device integrates I2C and PWM dimming interfaces for precise control. It is housed in a 32-QFN (4x4mm) package and operates within a temperature range of -40°C to 125°C.
Feature Summary
- Provides 18 independent output channels with fixed 27.5mA constant current regulation
- Supports dual control interfaces including I2C communication and PWM dimming signals
- Operates reliably across an extended industrial temperature range from -40°C to 125°C
Applications
- Industrial digital systems requiring multi-channel LED control
- Consumer electronics utilizing RGB or multi-color LED arrays
- General-purpose LED lighting drivers in compact form factors
Procurement Notes
Verify the specific suffix QFLS4 against official Lumissil documentation to confirm package type and tape/reel specifications. Ensure compatibility with I2C bus voltage levels and PWM signal requirements before integration. Confirm RoHS compliance status through the manufacturer's latest datasheet or certification documents.
Selection Notes
Select this component when 18 distinct LED channels are required with fixed current settings. The 4x4mm QFN package suits space-constrained designs. Verify that the 2.7V–5.5V input range aligns with the system power supply. Consider thermal dissipation capabilities given the linear topology and 27.5mA output per channel.
Part Context
This part belongs to the Lumissil IS31FL series of LED drivers, designed for high-density LED applications. The IS31FL3018 variant specifically targets scenarios needing multiple outputs without complex external circuitry. It complements other models in the family offering different channel counts or interface options.
Replacement Considerations
Check Lumissil datasheets for direct pin-to-pin replacements within the IS31FL series. Verify if alternative models offer compatible I2C addresses and similar current ratings. Cross-reference package dimensions to ensure mechanical fit in existing PCB layouts.
