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Product Detailed Parameters
- Description：IC LED DRVR LIN NO 38MA 48ETQFP
- Series：-
- Mfr：Lumissil Microsystems
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Linear
- Topology：Constant Current
- Internal Switch(s)：No
- Number of Outputs：36
- Voltage - Supply (Min)：2.7V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：-
- Current - Output / Channel：38mA
- Frequency：31.5kHz
- Dimming：No
- Applications：Lighting
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：48-TQFP Exposed Pad
- Supplier Device Package：48-eTQFP (7x7)
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The IS32FL3237-TQLA3-TR is a 36-channel linear constant current LED driver IC manufactured by Lumissil Microsystems. It operates within an input voltage range of 2.7V to 5.5V and provides a typical output current of 38mA per channel, with specific ranges noted between 21.39mA and 24.61mA in some contexts. The device is housed in a 48-pin eTQFP package measuring 7x7mm or 9x9mm depending on the specific variant designation, featuring an exposed pad for thermal management. It supports no dimming functionality and is designed for driving external LEDs.
Feature Summary
- Provides 36 independent constant current outputs for driving LED matrices
- Utilizes linear regulation architecture for simplified circuit design
- Operates on standard single-supply voltages compatible with common logic levels
Applications
- LED dot matrix displays
- Segmented LED indicators
- General-purpose LED lighting arrays
Procurement Notes
Verify the exact package dimensions (7x7mm vs 9x9mm) against the datasheet, as sources vary. Confirm availability status as inventory data may be outdated. Ensure the selected reel quantity matches manufacturing requirements. Check for end-of-life notifications or alternative part recommendations from Lumissil before finalizing procurement plans.
Selection Notes
Select this component when a high channel count is required without complex multiplexing. It is suitable for designs where linear regulation efficiency is acceptable compared to switching regulators. Consider thermal dissipation requirements due to the linear nature of the driver. Verify that the 38mA output current meets the specific forward current requirements of the target LEDs.
Part Context
This part belongs to Lumissil's IS32FL series of LED drivers, which focuses on providing integrated solutions for display applications. The series typically includes variants with different channel counts and interface options. This specific model emphasizes simplicity and reliability for static or low-frequency driven displays.
Replacement Considerations
No direct public substitute part numbers are confirmed for this specific model in the provided documentation. Designers should consult Lumissil directly for potential obsolescence management or pin-compatible alternatives if this component reaches end-of-life.
