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Product Detailed Parameters
- Description：48-CHANNEL LED DRIVER IC WITH 16
- Series：-
- Mfr：Lumissil Microsystems
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Linear
- Topology：Constant Current
- Internal Switch(s)：No
- Number of Outputs：48
- Voltage - Supply (Min)：3V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：16V
- Current - Output / Channel：33.8mA
- Frequency：-
- Dimming：PWM, SPI
- Applications：Backlight
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：64-WFQFN Exposed Pad
- Supplier Device Package：64-WFQFN (9x9)
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The IS32FL3248-QWLA3-TR is a 48-channel LED driver IC designed for backlight applications and LED matrix control. It features linear constant-current output with PWM dimming capabilities, supporting an input voltage range of 3 to 5.5 volts. The device provides an output voltage up to 16 volts and delivers an output current of 33.8 milliamps per channel. It utilizes SPI interface for dimming control and is housed in a 64-WFQFN package.
Feature Summary
- Provides 48 independent channels for precise LED matrix control
- Integrates linear constant-current output for stable illumination
- Supports high-resolution 16-bit PWM dimming via SPI interface
Applications
- Automotive interior backlighting systems
- High pixel count intelligent signaling displays
- LED matrix control modules
Procurement Notes
Verify the specific suffix QWLA3-TR against the manufacturer's latest datasheet to confirm pinout and thermal specifications. Ensure the design supports the required SPI communication protocol and that the PCB layout accommodates the 64-WFQFN exposed pad for adequate heat dissipation under full load conditions.
Selection Notes
Select this component when a high channel count is required for complex lighting patterns without external multiplexing. It is suitable for designs needing uniform current distribution across many LEDs. Consider the thermal performance of the WFQFN package relative to the ambient operating temperature and total power dissipation of the connected LED array.
Part Context
This part belongs to Lumissil's IS32FL series of LED drivers, which are optimized for automotive and industrial lighting applications. The series emphasizes high integration and reliability, often meeting AEC-Q100 standards for automotive grade components. It complements other drivers in the lineup by offering a balance between channel density and control precision.
Replacement Considerations
Check for direct substitutes within the IS32FL series, such as the IS32FL3268, which offers fewer channels but may share similar control interfaces. Verify compatibility with existing firmware and hardware constraints before swapping to ensure signal integrity and thermal management requirements are met.
