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Product Detailed Parameters
- Description：IC LED DRVR LIN PWM 40MA 20QFN
- Series：-
- Mfr：Lumissil Microsystems
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Linear
- Topology：-
- Internal Switch(s)：Yes
- Number of Outputs：9
- Voltage - Supply (Min)：2.7V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：-
- Current - Output / Channel：40mA
- Frequency：-
- Dimming：PWM
- Applications：-
- Operating Temperature：-40°C ~ 85°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 IS31FL3199-QFLS2-TR is a linear LED driver IC manufactured by Lumissil Microsystems. It features nine constant-current output channels, each capable of sinking up to 40 mA. The device supports I2C interface control and linear PWM dimming for precise brightness adjustment. It operates within a supply voltage range of 2.7 V to 5.5 V and functions reliably across an ambient temperature range of -40°C to +85°C. The component is housed in a compact 20-WFQFN (3x3 mm) package with an exposed pad, designed for surface-mount assembly.
Feature Summary
- Nine independent constant-current output channels for multi-zone LED control
- Integrated linear PWM dimming capability for flicker-free brightness regulation
- I2C serial interface for simplified digital control and configuration
- Compact 20-pin QFN package optimized for space-constrained PCB layouts
Applications
- Automotive interior ambient lighting systems
- Dashboard and instrument cluster backlighting
- High-density LED matrix displays
- Portable electronic device indicator arrays
Procurement Notes
Verify the specific suffix QFLS2 against the official Lumissil datasheet to confirm pinout and electrical characteristics match your design requirements. Confirm RoHS compliance status and moisture sensitivity level prior to soldering. Ensure ESD protection protocols are followed during handling due to the small form factor and sensitive internal circuitry.
Selection Notes
Select this component when nine individually controllable LED channels are required with high current sinking capability. It is suitable for designs needing I2C connectivity and linear PWM dimming without external microcontrollers managing individual GPIOs. Consider the thermal performance of the exposed pad for heat dissipation in dense assemblies.
Part Context
This part belongs to the IS31FL3199 series of LED drivers from Lumissil Microsystems. It is designed for applications requiring multiple constant-current outputs with digital control. The series targets automotive and consumer electronics markets where reliable LED illumination and compact packaging are critical design constraints.
Replacement Considerations
No direct public substitute part numbers are confirmed in the provided documentation. Verify compatibility with existing I2C addresses and pin configurations if considering alternative LED driver ICs from other manufacturers.
