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Product Detailed Parameters
- Description：IC LED DRVR LIN PWM 38MA 48QFN
- Series：-
- Mfr：Lumissil Microsystems
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Linear
- Topology：Shift Register
- Internal Switch(s)：Yes
- Number of Outputs：30
- Voltage - Supply (Min)：2.7V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：-
- Current - Output / Channel：38mA
- Frequency：400kHz ~ 1MHz
- Dimming：PWM
- Applications：General Purpose
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：48-WFQFN Exposed Pad
- Supplier Device Package：48-QFN (6x6)
- Grade：-
- Qualification：-
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Overview
The IS31FL3742A-QFLS4-TR is a linear LED display driver designed for matrix configurations. It supports a 30x6 dot matrix layout, providing 30 independent output channels. The device operates with a supply voltage range of 2.7V to 5.5V and delivers a constant current of 38mA per channel. It features a 1MHz I2C compatible programming interface for control and configuration. The component is housed in a 48-WFQFN package with dimensions of 6.0mm x 6.0mm.
Feature Summary
- Supports 30x6 dot matrix LED configurations
- Integrates 1MHz I2C compatible interface
- Provides 38mA constant current output per channel
Applications
- Dot matrix LED displays
- LED lighting drivers
- Industrial applications requiring EMI noise reduction
Procurement Notes
Verify the specific suffix QFLS4-TR against official Lumissil documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with the 48-WFQFN footprint during PCB design. Confirm that the 1MHz I2C interface aligns with the host controller's bus capabilities. Check for any recent Product Change Notifications (PCN) regarding manufacturing updates or material changes.
Selection Notes
Select this component when a high-density matrix driver with integrated I2C control is required. The 38mA output current suits standard indicator LEDs. Consider the 48-pin QFN package constraints for thermal management and board space. Verify that the 2.7V to 5.5V supply range matches the system power architecture. Evaluate if the linear topology meets efficiency requirements compared to switching alternatives.
Part Context
This part belongs to the IS31FL3x family of industrial FXLED drivers from Lumissil Microsystems. These drivers are characterized by wide LED support ranges and integrated EMI noise reduction technology. The series targets applications needing reliable LED control with simplified interface protocols. The IS31FL3742A represents an updated version of the earlier IS31FL3742 model.
Replacement Considerations
The IS31FL3742-QFLS4-TR is listed as obsolete with the IS31FL3742A-QFLS4-TR confirmed as a direct substitute. Verify pinout and electrical parameter equivalence before implementation.
