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Product Detailed Parameters
- Description：12-CH 40MA LED DRIVER 12C
- Series：-
- Mfr：Lumissil Microsystems
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Linear
- Topology：Shift Register
- Internal Switch(s)：-
- Number of Outputs：12
- Voltage - Supply (Min)：2.7V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：-
- Current - Output / Channel：40mA
- Frequency：1MHz
- Dimming：I2C, Multi-Step, 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 IS31FL3292-QFLS4-TR is a 12-output LED driver IC manufactured by Lumissil Microsystems, housed in a QFN-20 package measuring 3.0mm x 3.0mm. It supports 4-RGB or 12-LED configurations with an I2C-compatible interface operating at 1MHz. The device provides constant current outputs of 40mA per channel and functions within a supply voltage range of 2.7V to 5.5V. It features PWM dimming capabilities and operates reliably across temperatures from -40°C to +85°C.
Feature Summary
- Integrates a 1MHz I2C compatible programming interface for efficient control
- Supports individual LED dimming via multi-step and PWM methods
- Provides 12 independent constant current sink outputs
Applications
- RGB LED lighting systems
- General LED backlighting applications
- Portable electronic display modules
Procurement Notes
Verify the specific suffix QFLS4-TR against official Lumissil documentation to confirm the exact tape and reel packaging configuration. Ensure the design accommodates the 20-pin QFN footprint dimensions of 3.0mm x 3.0mm. Confirm that the target application environment remains within the specified -40°C to +85°C operating temperature range for reliable performance.
Selection Notes
Select this component when a compact solution for driving multiple LEDs via I2C is required. It is suitable for designs needing individual channel control without complex external circuitry. Consider the 40mA output capability relative to the connected LED forward current requirements. Verify compatibility with the system's I2C bus speed and voltage levels before integration.
Part Context
This part belongs to the IS31FL32xx series of LED drivers from Lumissil Microsystems, designed for high-density lighting applications. The series emphasizes small form factors and integrated control interfaces to simplify PCB layout. This specific model targets applications requiring precise color mixing or uniform brightness across multiple diodes in space-constrained devices.
Replacement Considerations
Check for direct pin-to-pin replacements within the IS31FL32xx family, such as variants with different output counts or current ratings. Ensure any substitute maintains the 20-QFN package and I2C interface compatibility. Verify thermal management requirements if the replacement offers higher current capacity.
