TPS92515DGQR Description

Compact monolithic switching regulators with a low resistance N-Channel MOSFET are part of the TPS92515 device family. The devices are designed for high-brightness LED lighting applications where small size, PWM or analog dimming, high bandwidth, and efficiency are critical.

The regulator controls the peak current with a constant off-time. The process is straightforward: an on-time starts after an off-time determined by the output voltage. Once the inductor peak current threshold is met, the on-time is over. In order to maintain a constant peak-to-peak ripple during the ON and OFF phases of a shunt FET dimming cycle, the TPS92515 device can be set. This is the best way to guarantee linear response over the full shunt FET dimming range.

TPS92515DGQR Features

• AEC-Q100 Grade 1 Qualified

• Integrated 290-mΩ (typ) Internal N-Channel FET

• Low Offset High-side Peak Current Comparator

• Constant Average Current, up to 2 A

• Inherent Cycle-by-Cycle Current Limit

• Multiple Dimming Methods

TPS92515DGQR Applications

• Agricultural, Marine, and Heavy Industry Lighting

• High Contrast Shunt FET Dimming

• Automotive Lighting: LED Switched Matrix AFS Headlamps, DRL, High/Low Beam, Fog, Rear, Turn Signal, Side Marker, Aftermarket