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Product Detailed Parameters
- Description：IC LED DRV LIN PWM 150MA SOT23-6
- Series：-
- Mfr：Lumissil Microsystems
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Linear
- Topology：Constant Current
- Internal Switch(s)：No
- Number of Outputs：1
- Voltage - Supply (Min)：2.9V
- Voltage - Supply (Max)：40V
- Voltage - Output：40V
- Current - Output / Channel：150mA
- Frequency：-
- Dimming：PWM
- Applications：Lighting
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：SOT-23-6
- Supplier Device Package：SOT-23-6
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The IS32LT3178-STLA3-TR is a linear LED driver IC manufactured by Lumissil Microsystems, designed for automotive lighting applications. It features a single output channel capable of delivering up to 150mA of constant current. The device operates within an input voltage range of 2.6V to 40V and supports PWM dimming functionality. It is housed in a compact SOT-23-6 surface-mount package. The component is qualified to AEC-Q100 standards and functions reliably across a temperature range of -40°C to 125°C.
Feature Summary
- Linear regulation architecture for precise constant current control
- Integrated PWM dimming capability for brightness adjustment
- Automotive-grade qualification ensuring reliability in harsh environments
Applications
- Automotive exterior lighting systems
- Interior vehicle illumination modules
- General-purpose LED indicator circuits
Procurement Notes
Verify the specific suffix STLA3 against the latest manufacturer datasheet to confirm pinout and electrical characteristics match the design requirements. Confirm that the component status is active or NRND, as availability may vary. Ensure the SOT-23-6 package footprint aligns with the PCB layout constraints before finalizing procurement decisions.
Selection Notes
Select this component when a single-channel linear driver with integrated PWM dimming is required for low-to-medium current LED loads. The SOT-23-6 package suits space-constrained designs. Consider thermal management requirements due to the linear topology, especially at higher input voltages relative to the LED forward voltage drop.
Part Context
This part belongs to the IS32LT31xx family of high-side linear LED drivers from Lumissil Microsystems. These devices are engineered for automotive applications requiring robust fault protection and precise current regulation. The family typically includes variants with different channel counts and interface options, all sharing common automotive qualification standards.
Replacement Considerations
The IS32LT3177-STLA3-TR is listed as a similar alternative by distributors. Verify functional equivalence regarding current limits and pin compatibility before substitution.
