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Product Detailed Parameters
- Description：1216 DOTS MATRIX LED DRIVER, QFN
- Series：-
- Mfr：Lumissil Microsystems
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Linear
- Topology：Constant Current
- Internal Switch(s)：Yes
- Number of Outputs：16
- Voltage - Supply (Min)：2.7V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：-
- Current - Output / Channel：42mA
- Frequency：1MHz
- Dimming：I2C, PWM
- Applications：General Purpose
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：48-WFQFN Exposed Pad
- Supplier Device Package：48-QFN (6x6)
- Grade：-
- Qualification：-
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Overview
The IS31FL3723-QFLS4-TR is a linear constant current LED driver IC designed for matrix displays. It features 16 output channels with an internal switching topology and no internal switches, delivering up to 42mA per channel. The device operates on a supply voltage range of 2.7V to 5.5V and supports I²C and PWM dimming interfaces. It utilizes a 1/12 cycle rate for a 12x16 dot matrix configuration. The component is housed in a 48-QFN (6x6mm) package and functions within a temperature range of -40°C to 125°C.
Feature Summary
- Linear constant current regulation for stable LED performance
- I²C compatible interface for digital control and programming
- Supports PWM dimming for brightness adjustment
- Integrated 12x16 matrix driver architecture
Applications
- LED matrix display systems
- Dot matrix lighting applications
- General purpose LED indicator arrays
Procurement Notes
Verify the specific suffix QFLS4-TR against the manufacturer's latest datasheet to confirm pinout and packaging specifications. Ensure the procurement source provides valid traceability documentation for automotive-grade components. Confirm that the 48-QFN package dimensions match the target PCB footprint requirements before finalizing orders.
Selection Notes
Select this component when a compact solution for driving 12x16 LED matrices is required. It is suitable for designs needing linear regulation without external power switches. Consider the 42mA output capability and I²C interface compatibility with the host microcontroller. Evaluate thermal dissipation needs given the QFN package and linear topology constraints.
Part Context
This part belongs to the Lumissil IS31FL37xx series of LED drivers. These devices are engineered for high integration in display and lighting applications. The series typically offers various channel counts and matrix configurations to support diverse pixel density requirements across consumer and industrial electronics markets.
Replacement Considerations
Check for direct substitutes within the IS31FL37xx family that offer similar channel counts and package types. Verify pin-to-pin compatibility if replacing with other Lumissil models. Ensure any alternative maintains the same I²C addressability and current regulation characteristics.
