SLUSCZ1 May 2017 TPS92518-Q1
PRODUCTION DATA.
The TPS92518-Q1 was designed with the consideration of two main input source possibilities: direct from battery or from the output of a boost stage. For either application, ensure input voltage ripple requirements are met. The input ripple must go no higher than 10% of the input voltage to a maximum of 3 V.
Operation direct from battery has been considered when designing the TPS92518-Q1. The device ratings are such that load dump and other battery voltage excursions should not exceed the ratings of the device. When the battery voltage drops, the device's ability to run in to drop-out and various UVLO controls ensure a controlled recovery and no device damage. The BOOT UVLO protection allows duty cycles over 99%.
The TPS92518-Q1 maximum input voltage of 65 V makes it a suitable second stage buck regulator(s) for a variety of applications and LED output configurations. For an average LED forward voltage of 3.5 V, and allowing for some headroom below the 65-V maximum input, the TPS92518-Q1 can successfully control up to 17 LEDs connected in series.