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Product Detailed Parameters
- Description：168/159 MATRIX LED DRIVER, QFN
- Series：-
- Mfr：Lumissil Microsystems
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Linear
- Topology：Constant Current
- Internal Switch(s)：No
- Number of Outputs：9
- Voltage - Supply (Min)：2.7V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：-
- Current - Output / Channel：-
- Frequency：-
- Dimming：I2C
- Applications：General Purpose
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：32-WFQFN Exposed Pad
- Supplier Device Package：32-QFN (4x4)
- Grade：-
- Qualification：-
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Overview
The IS31FL3719-QFLS4-TR is an LED display driver IC manufactured by Lumissil Microsystems. It features a matrix LED driver architecture with 168 or 159 configurable pixels, housed in a QFN-32 package measuring 4mm x 4mm. The device supports I2C programming interfaces for control and dimming functions. It operates within a temperature range of -40°C to +125°C (TA). The component is designed for surface mount installation and utilizes linear constant current topology for output regulation.
Feature Summary
- Configurable matrix size supporting up to 33 x n pixel configurations
- Integrated I2C compatible programming interface for control
- Linear constant current output regulation for LED channels
- Automotive-grade qualification indicated by the 'Q' suffix
Applications
- LED matrix displays
- Automotive interior lighting systems
- General LED lighting applications
Procurement Notes
Verify the specific datasheet revision and product change notifications (PCN) prior to procurement, as availability may be restricted in certain regions. Confirm that the QFN-32 package dimensions and pinout match the target PCB footprint exactly. Ensure the design accounts for the specified operating temperature range and humidity sensitivity levels during assembly and storage.
Selection Notes
Select this component when a compact QFN-32 form factor is required for matrix LED driving. It is suitable for designs needing I2C control with linear regulation rather than switching topologies. Consider the 168/159 pixel capacity against system requirements. Verify compatibility with the host controller's I2C bus speed and voltage levels before integration into the final product design.
Part Context
This part belongs to the Lumissil IS31FL series of LED drivers, which are widely used in automotive and industrial display applications. The 'Q' designation typically signifies automotive reliability standards. The QFN-32 package provides a small footprint relative to channel count, making it efficient for space-constrained PCB layouts compared to larger leaded packages.
Replacement Considerations
Check for direct cross-references within the IS31FL family, such as the IS31FL3723 or IS31FL3729, noting differences in channel counts and package types. Verify if alternative suppliers offer equivalent QFN-32 matrix drivers with matching I2C interfaces and current specifications.
