TPS92682QRHMRQ1

The TPS92682QRHMRQ1 from Texas Instruments is an automotive-grade, dual-channel constant-voltage and constant-current controller featuring an SPI communication interface. This device is designed to manage LED lighting systems, offering precise control over voltage and current.

Key electrical specifications include a wide input voltage range from 4.5 V to 65 V, with a maximum output current of 5 A. The controller operates with a switching frequency up to 1000 kHz and provides ±4% LED current accuracy over a junction temperature range of -40°C to 150°C. It supports both analog and PWM dimming methods.

The TPS92682QRHMRQ1 is housed in a 32-VQFN (5x5 mm) package with a wettable flank surface mount type, suitable for demanding automotive environments. Its features include adjustable switch frequency, fault detection and diagnostics, LED open and short-to-ground detection, spread spectrum for EMI reduction, and thermal shutdown protection. The SPI interface allows for programmable features such as soft-start timing, current limit, and mode configuration.

This controller is functional safety-capable and AEC-Q100 grade 1 qualified, making it suitable for applications requiring high reliability and safety, such as automotive headlights, taillights, and general illumination.