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Product Detailed Parameters
- Description：IC LED DRV LIN ANALOG 34MA 28QFN
- Series：-
- Mfr：Lumissil Microsystems
- Package：Tape & Reel (TR)
- Type：Linear
- Topology：-
- Internal Switch(s)：-
- Number of Outputs：18
- Voltage - Supply (Min)：2.7V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：-
- Current - Output / Channel：34mA
- Frequency：-
- Dimming：Analog
- Applications：-
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：28-WFQFN Exposed Pad
- Supplier Device Package：28-QFN (4x4)
- Grade：-
- Qualification：-
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Overview
The IS31FL3731C-QFLS2-TR is an 18-output linear LED driver IC featuring analog dimming control and a maximum channel current of 34mA. It operates within a supply voltage range of 2.7V to 5.5V and supports an operating temperature range of -40°C to 85°C. The component is housed in a 28-WFQFN exposed pad package, specifically a 28-QFN (4x4) configuration. Designed for driving up to 144 single LEDs, it integrates pre-programmed RGB color-effect lighting and animation functions.
Feature Summary
- Integrates pre-programmed RGB color-effect lighting and animation functions
- Provides analog dimming control across 18 output channels
- Supports direct drive for up to 144 single LEDs
Applications
- RGB color-effect lighting systems
- LED animation displays
- Compact LED matrix drivers
Procurement Notes
Verify the specific suffix 'C' against the datasheet to confirm the exact electrical characteristics and revision level. Ensure the 28-QFN (4x4) package dimensions match the PCB footprint requirements. Confirm that the analog dimming interface aligns with the host controller's output capabilities before finalizing the design.
Selection Notes
Select this component when designing systems requiring integrated RGB effects without external microcontroller processing overhead. It is suitable for applications needing analog dimming control rather than PWM. Verify that the 34mA per-channel current rating meets the forward current requirements of the selected LEDs.
Part Context
This part belongs to the IS31FL3731 series of compact LED drivers from Lumissil Microsystems. The series focuses on simplifying RGB lighting designs by embedding animation patterns directly into the hardware. It serves as a specialized solution for reducing system complexity in consumer electronics and decorative lighting.
Replacement Considerations
The IS31FL3731-QFLS2-TR is listed as a related product. Verify if the non-'C' suffix variant offers identical pinout and electrical specifications before substitution.
