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Product Detailed Parameters
- Description：IC LED DRVR LIN PWM 90MA 16QFN
- Series：-
- Mfr：Lumissil Microsystems
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Linear
- Topology：-
- Internal Switch(s)：Yes
- Number of Outputs：8
- Voltage - Supply (Min)：2.7V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：-
- Current - Output / Channel：90mA
- Frequency：-
- Dimming：PWM
- Applications：Backlight
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-WFQFN Exposed Pad
- Supplier Device Package：16-QFN (3x3)
- Grade：-
- Qualification：-
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Overview
The IS31BL3230-QFLS2-TR is an LED driver IC featuring eight constant current outputs with a maximum output current of 90mA per channel. It utilizes linear PWM dimming technology for precise brightness control. The device operates within a supply voltage range of 2.7V to 5.5V and supports a switching frequency of 400kHz. It is housed in a 16-WFQFN (3x3) package with an exposed pad, designed for surface mount installation. The component functions as an internal switch type driver suitable for backlight applications.
Feature Summary
- Provides eight independent constant current channels for uniform LED illumination
- Integrates linear pulse-width modulation for high-resolution dimming capabilities
- Features internal power switches to reduce external component count
- Supports wide input voltage operation for flexible system design
Applications
- LCD panel backlighting systems
- Mobile device display illumination
- Portable electronic equipment lighting
Procurement Notes
Verify the specific suffix QFLS2 against the manufacturer's latest documentation to confirm pinout and thermal specifications. Confirm RoHS compliance status as indicated in official datasheets. Check for End-of-Life notifications or Last Time Buy dates prior to finalizing procurement plans. Ensure ESD handling procedures are followed during assembly due to moisture sensitivity classification.
Selection Notes
Select this component when eight-channel constant current driving is required with integrated PWM dimming. The 90mA output capability suits medium-brightness LED arrays. The compact 3x3mm QFN package is ideal for space-constrained designs. Verify that the linear topology meets thermal dissipation requirements for the intended application environment.
Part Context
This part belongs to the Lumissil IS31BL series of LED drivers, specifically designed for backlighting applications. The series emphasizes high efficiency and precise current regulation. The QFLS2 suffix typically denotes automotive-grade qualification or specific packaging variants within the product line. It complements other Lumissil solutions for comprehensive display and lighting management.
Replacement Considerations
Check for direct cross-references from Lumissil regarding updated revisions. Evaluate alternative 8-channel LED drivers with similar 90mA output and QFN-16 packaging if availability is constrained. Ensure functional compatibility regarding dimming resolution and operating voltage ranges before substitution.
