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Product Detailed Parameters
- Description：1216 DOT MATRIX LED DRIVE WITH I
- Series：-
- Mfr：Lumissil Microsystems
- Package：Tape & Reel (TR)
- Type：Linear
- Topology：-
- Internal Switch(s)：Yes
- Number of Outputs：28
- Voltage - Supply (Min)：2.7V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：-
- Current - Output / Channel：42mA
- Frequency：1MHz
- Dimming：I2C
- 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 IS31FL3733-TQLS4-TR is a general-purpose 12x16 LED matrix driver manufactured by Lumissil Microsystems. It features 28 outputs with linear constant current control and I²C dimming capabilities, delivering up to 42mA per channel. The device supports individual auto-breath functions for each LED. It operates within a voltage range of 2.7V to 5.5V and utilizes an I²C compatible interface for programming. The component is housed in a 48-eTQFP package measuring 7mm x 7mm.
Feature Summary
- Supports 12x16 dot matrix configuration with individual LED control
- Integrates I²C compatible interface for data input and configuration
- Provides linear constant current output with adjustable brightness levels
- Includes individual auto-breath function capability for dynamic lighting effects
Applications
- Dot matrix LED displays
- Automotive intelligent signaling systems
- Consumer electronics indicator panels
Procurement Notes
Verify the specific suffix TQLS4-TR corresponds to the 48-eTQFP (7x7) package and tape & reel packaging. Confirm that the manufacturer designation matches Lumissil Microsystems, as previous iterations may have been associated with ISSI. Ensure the datasheet version aligns with the requested electrical characteristics and pinout configuration before finalizing procurement orders.
Selection Notes
Select this component when a compact 12x16 matrix solution is required with independent channel control. The eTQFP-48 package offers a suitable footprint for space-constrained designs compared to larger QFN variants. Verify that the I²C interface compatibility matches the host microcontroller system requirements and that the 42mA output current meets the forward current specifications of the selected LEDs.
Part Context
This part belongs to the IS31FL3733 series of LED drivers designed for matrix applications. The family includes variants with different packages such as QFN-48 and eTQFP-48. The transition from ISSI to Lumissil Microsystems has maintained the core functionality while updating manufacturing sources. This specific model focuses on the through-hole or surface-mount eTQFP form factor for broader board layout flexibility.
Replacement Considerations
The IS31FL3733-QFLS4-TR serves as a package-compatible alternative offering identical electrical performance in a 48-WFQFN format. Designers must verify mechanical clearance and soldering profile differences between the eTQFP and QFN packages during substitution.
