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Product Detailed Parameters
- Description：1-RGB/3-LED DRIVER, UTQFN-9(1.5M
- Series：-
- Mfr：Lumissil Microsystems
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Linear
- Topology：Constant Current
- Internal Switch(s)：Yes
- Number of Outputs：3
- Voltage - Supply (Min)：2.7V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：-
- Current - Output / Channel：20mA
- Frequency：1MHz
- Dimming：I2C, PWM
- Applications：General Purpose
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：9-UFQFN
- Supplier Device Package：9-UTQFN (1.5x1.5)
- Grade：-
- Qualification：-
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Overview
The IS31FL3293-UTLS4-TR is a linear LED driver IC manufactured by Lumissil Microsystems, designed for driving one RGB LED or three individual LEDs. It operates within a supply voltage range of 2.7V to 5.5V and delivers an output current of 20mA per channel. The device utilizes I2C communication for control and supports PWM dimming. It is housed in a compact 9-UFQFN package with dimensions of 1.5mm height, suitable for surface mount installation. The component functions as a constant current source without internal switching topology.
Feature Summary
- Supports driving configurations for one RGB LED or three separate single-color LEDs
- Utilizes I2C interface for digital control and configuration
- Provides PWM dimming capability for brightness adjustment
- Operates as a linear constant current driver
Applications
- Indicator lighting in consumer electronics
- Status signaling in IoT devices
- Compact LED backlighting solutions
Procurement Notes
Verify the specific suffix UTLS4 against the manufacturer's latest datasheet to confirm pinout and thermal characteristics. Ensure the design accommodates the 9-UFQFN package constraints. Confirm I2C address settings and voltage levels match the system requirements before integration.
Selection Notes
Select this component when a low-pin-count solution is required for driving multiple LEDs from a single IC. It is appropriate for applications where linear regulation efficiency is acceptable and space is limited. Compare against other IS31FL series parts if higher channel counts or different packaging options are needed.
Part Context
This part belongs to the IS31FL series of LED drivers from Lumissil Microsystems, which focuses on integrated lighting solutions. The series includes various channel counts and interfaces, catering to diverse display and indicator needs across automotive and industrial sectors.
Replacement Considerations
Check for direct substitutes within the IS31FL family that offer similar channel counts and package types. Verify compatibility with existing PCB footprints and firmware I2C protocols before swapping components.
