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Product Detailed Parameters
- Description：4-RGB/12 CHANNEL 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：12
- Voltage - Supply (Min)：2.7V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：-
- Current - Output / Channel：27.5mA
- Frequency：32MHz
- Dimming：I2C, PWM
- Applications：General Purpose
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：20-WFQFN Exposed Pad
- Supplier Device Package：20-QFN (3x3)
- Grade：-
- Qualification：-
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Overview
The IS31FL3252-QFLS4-TR is a 12-channel LED driver IC manufactured by Lumissil Microsystems. It features constant current outputs with a maximum output current of 27.5 mA per channel. The device supports I2C and PWM dimming interfaces for precise control. It is housed in a compact 20-QFN (3x3 mm) package.
Feature Summary
- Provides 12 independent constant current channels suitable for RGB and general-purpose LED applications.
- Integrates dual control interfaces supporting both I2C digital communication and PWM analog dimming signals.
Applications
- RGB LED lighting systems requiring multi-color mixing
- General-purpose LED indicator arrays
- Compact display backlighting modules
Procurement Notes
Verify the specific suffix QFLS4-TR against the manufacturer's latest datasheet to confirm pinout, thermal characteristics, and packaging details. Ensure compatibility with system voltage levels and interface protocols before integration. Cross-reference official component markings to distinguish from non-qualified variants.
Selection Notes
Select this component when a high channel count is required within a minimal footprint. The 3x3 mm QFN package suits space-constrained designs. Verify that the 27.5 mA output capability meets the forward current requirements of the target LEDs without external heat sinking.
Part Context
This part belongs to the IS31FL32xx series of LED lighting drivers from Lumissil. These devices are engineered for efficient LED management with integrated protection features. The series targets consumer electronics and automotive interior lighting where size and control precision are critical.
Replacement Considerations
Check for direct substitutes such as the IS31FL3254 or IS31FL3298 if channel count or package dimensions differ. Verify pin-to-pin compatibility and electrical specifications before substituting any alternative LED driver ICs.
FAQ
What control interfaces does the IS31FL3252 support?
The device supports both I2C digital interface and PWM analog dimming inputs for flexible brightness control.
What is the maximum output current per channel?
Each of the 12 channels can deliver a constant current of up to 27.5 mA.
