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The IS32LT3171-STLA3-TR is a single-channel linear LED driver IC designed for automotive lighting applications. It features an internal PWM dimming capability and delivers a maximum output current of 150mA per channel. The device operates within a supply voltage range of 2.5V to 5.5V and supports output voltages up to 42V. Packaged in a compact SOT-23-6 surface-mount format, it is qualified to AEC-Q100 standards and functions reliably across a temperature range of -40°C to +125°C.
Verify the specific suffix STLA3 against the manufacturer's latest datasheet to confirm pinout and electrical characteristics match the design requirements. Confirm that the component status is No Recommended for New Design (NRND) or End-of-Life (EOL) if long-term production stability is required for the project lifecycle. Ensure the ordering quantity aligns with the standard tape-and-reel packaging specifications provided by the distributor.
Select this component when a single high-side linear LED driver with internal PWM dimming is required for automotive environments. It is suitable for applications where thermal management can be handled externally or through the PCB copper area. Consider the 150mA current limit and 42V output voltage headroom to ensure compatibility with the target LED string configuration and system power supply constraints.
This part belongs to the IS32LT317x family of high-side linear LED drivers from Lumissil Microsystems. The family targets automotive lighting solutions requiring robust fault protection and precise current regulation. The IS32LT3171 represents the single-channel variant within this series, offering a balance of performance and package size for various illumination tasks.
The IS32LT3177-STLA3-TR is listed as a similar replacement option by distributors.