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Product Detailed Parameters
- Description：IC LED DRVR LIN PWM 39.6MA 48QFN
- Series：-
- Mfr：Lumissil Microsystems
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Linear
- Topology：Constant Current
- Internal Switch(s)：No
- Number of Outputs：24
- Voltage - Supply (Min)：4.5V
- Voltage - Supply (Max)：28V
- Voltage - Output：-
- Current - Output / Channel：39.6mA
- Frequency：-
- Dimming：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 IS31FL3748A-QFLS4-TR is a linear LED display driver manufactured by Lumissil Microsystems. It features 24 constant current output channels with a channel current of 39.6mA. The device supports PWM dimming and operates within a supply voltage range of 4.5V to 28V. It is housed in a 48-WFQFN package (6x6mm) with an exposed pad, suitable for surface mount installation. The component functions across a temperature range of -40°C to +125°C.
Feature Summary
- Provides 24 independent constant current output channels for LED matrix driving
- Supports PWM dimming control for brightness adjustment
- Operates with high voltage constant current capability up to 28V supply
- Integrated linear topology without internal switching elements
Applications
- Dot matrix LED displays
- LED lighting systems requiring constant current regulation
- Industrial LED indicator panels
Procurement Notes
Verify the specific suffix QFLS4-TR against official Lumissil documentation to confirm packaging and tape-and-reel specifications. Ensure compatibility with the 48-WFQFN footprint during PCB layout. Confirm that the 39.6mA output current meets system requirements. Check for moisture sensitivity level 3 handling procedures prior to soldering.
Selection Notes
Select this component when a 24-channel LED driver with fixed 39.6mA output is required. The linear topology suits applications where simplicity and low noise are prioritized over efficiency. The wide operating temperature range makes it suitable for industrial environments. Verify that the 28V maximum supply voltage aligns with the LED string configuration.
Part Context
This part belongs to the IS31FL3748 family of LED drivers from Lumissil Microsystems. It is designed for dot matrix applications, offering a compact solution for driving multiple LEDs with precise current control. The A-suffix typically denotes specific manufacturing revisions or enhanced reliability characteristics compared to base models.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source material. Consult Lumissil Microsystems directly for qualified alternatives or pin-compatible replacements.
