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Product Detailed Parameters
- Description：IC LED DRVR LIN PWM 84MA 28QFN
- Series：-
- Mfr：Lumissil Microsystems
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Linear
- Topology：-
- Internal Switch(s)：No
- Number of Outputs：8
- Voltage - Supply (Min)：2.7V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：-
- Current - Output / Channel：84mA
- Frequency：1MHz
- Dimming：PWM
- Applications：Lighting
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：28-WFQFN Exposed Pad
- Supplier Device Package：28-QFN (5x5)
- Grade：-
- Qualification：-
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Overview
The IS31FL3738-QFLS4-TR is a general-purpose LED matrix driver manufactured by Lumissil Microsystems. It supports a 6x8 dot matrix configuration with a 1/12 cycle rate, driving up to 48 LEDs. The device operates on a supply voltage range of 2.7V to 5.5V and delivers an output current of 8mA per channel. It features linear constant current regulation with PWM dimming capabilities. The component is housed in a 28-WFQFN (5x5mm) package with exposed pad and functions within a temperature range of -40°C to +125°C.
Feature Summary
- Supports 6x8 LED matrix configurations with integrated 1/12 cycle rate scanning
- Provides linear constant current regulation for uniform LED brightness
- Enables precise intensity control through independent PWM dimming channels
Applications
- Dot matrix display modules
- Numeric and alphanumeric indicators
- Small character visual signaling devices
Procurement Notes
Verify the specific suffix QFLS4-TR against official Lumissil documentation to confirm the exact package variant and tape-and-reel specifications. Ensure the design accommodates the 28-WFQFN footprint and thermal requirements. Confirm that the 8mA output current aligns with the target LED forward current specifications before finalizing procurement orders.
Selection Notes
Select this component when a compact solution for small dot matrix displays is required. It is suitable for applications needing independent channel control via PWM without complex external circuitry. Consider the 2.7V to 5.5V input range for compatibility with standard logic levels and battery-powered systems requiring efficient power management.
Part Context
This part belongs to the IS31FL37xx series of LED drivers from Lumissil Microsystems, designed for general-purpose lighting and display applications. The series focuses on integrating multiple drive channels into small packages to reduce board space. This specific model targets low-pin-count matrix applications compared to higher-channel variants in the same family.
Replacement Considerations
Check datasheets for other IS31FL37xx models with similar pin counts and current ratings. Verify compatibility of the 28-WFQFN package and electrical characteristics such as supply voltage and output current before substituting.
