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Product Detailed Parameters
- Description：12 CHANNELS, LINEAR LED DRIVER W
- Series：-
- Mfr：Lumissil Microsystems
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Linear
- Topology：-
- Internal Switch(s)：No
- Number of Outputs：12
- Voltage - Supply (Min)：4.5V
- Voltage - Supply (Max)：16V
- Voltage - Output：16V
- Current - Output / Channel：100mA
- Frequency：6MHz, 33MHz
- Dimming：PWM
- Applications：General Purpose
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount, Wettable Flank
- Package / Case：32-WFQFN Exposed Pad
- Supplier Device Package：32-WQFN (5x5)
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The IS32LT3137-QWLCA3-TR is a 12-channel linear LED driver IC designed for automotive applications. It features 100mA output current per channel with PWM dimming capability. The device operates within a supply voltage range of 2.5V to 42V and supports an operating temperature range from -40°C to +125°C. It utilizes a 32-WQFN package measuring 5mm x 5mm.
Feature Summary
- Provides 12 independent linear output channels for LED driving
- Supports PWM dimming control for brightness adjustment
- Automotive-grade reliability with extended temperature operation
Applications
- Automotive OLED lighting systems
- Interior ambient lighting modules
- Exterior illumination control units
Procurement Notes
Verify the specific suffix 'A' in the part number to confirm the 100mA output rating, as other variants like the IS32LT3137-QWLA3-TR offer different current specifications. Ensure compatibility with the target PCB footprint for the 32-WQFN package. Confirm that the application requires linear regulation rather than switching topology for noise-sensitive environments.
Selection Notes
Select this component when designing automotive lighting circuits requiring multiple low-current channels with precise linear regulation. It is suitable for applications where electromagnetic interference must be minimized compared to switching drivers. Verify that the thermal dissipation requirements of the 5x5mm QFN package align with the system's heat management strategy under maximum load conditions.
Part Context
This part belongs to the Lumissil IS32LT3137 series of linear LED drivers specifically engineered for automotive OLED applications. The series integrates communication interfaces compatible with CAN FD PHY standards for MCU connectivity. It represents a specialized solution for high-reliability vehicle lighting systems requiring stable current regulation across multiple channels.
Replacement Considerations
The IS32LT3137-QWLA3-TR is a related variant offering 1.2A output current instead of 100mA. Designers must evaluate if the higher current capacity is necessary or if the lower power consumption of the 'A3' suffix version is preferred for thermal management.
