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Product Detailed Parameters
- Description：IC LED DRIVER LINEAR 38MA 44QFN
- Series：-
- Mfr：Lumissil Microsystems
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Linear
- Topology：Constant Current
- Internal Switch(s)：No
- Number of Outputs：36
- Voltage - Supply (Min)：2.7V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：-
- Current - Output / Channel：38mA
- Frequency：3kHz, 22kHz
- Dimming：-
- Applications：LED Lighting
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：44-PowerWFQFN
- Supplier Device Package：44-QFN (5x5)
- Grade：-
- Qualification：-
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Overview
The IS31FL3236A-QFLS4-TR is a 36-channel LED lighting driver IC manufactured by Lumissil Microsystems. It operates within an input voltage range of 2.7 V to 5.5 V and supports Boost and Buck topologies. The device delivers a constant output current of 38 mA per channel with a maximum supply current of 9 mA. It functions at a working frequency of 400 kHz and features adjustable output voltage. Packaged in a QFN-44 (5.0mm x 5.0mm) format, it withstands operating temperatures from -40°C to +125°C and includes I2C control capabilities.
Feature Summary
- Integrates 36 independent constant current channels for uniform LED illumination
- Supports both Boost and Buck converter topologies for flexible power management
- Utilizes I2C compatible interface for precise digital control and dimming
Applications
- General LED lighting systems requiring multi-channel drive
- Industrial LED applications operating in wide temperature ranges
- Automotive interior or exterior lighting modules
Procurement Notes
Verify the specific suffix QFLS4-TR against the official Lumissil datasheet to confirm package dimensions and tape-and-reel specifications. Ensure the design accommodates the QFN-44 thermal requirements and I2C bus constraints. Cross-reference the RoHS status and humidity sensitivity levels with the manufacturer's latest compliance documentation before finalizing procurement orders.
Selection Notes
Select this component when a high-density solution for 36 LEDs is required within a compact QFN-44 footprint. It is suitable for designs needing simultaneous Boost and Buck capability with low quiescent current. Verify that the system voltage aligns with the 2.7 V to 5.5 V input range and that the thermal environment supports the +125°C maximum junction temperature rating.
Part Context
This part belongs to the IS31FL3236A series of LED lighting drivers from Lumissil Microsystems. The series is characterized by industrial-grade reliability and integrated EMI noise reduction technologies. The QFLS4-TR variant specifically denotes the QFN-44 package configuration with tape-and-reel packaging for automated surface-mount assembly processes.
Replacement Considerations
Direct substitutes include other parts within the IS31FL3236 family, such as IS31FL3236A-QFLS2-TR, provided the pinout and package compatibility are verified. No alternative manufacturers offer identical 36-channel linear drivers with this specific topology integration.
