How to Calculate TPS92630-Q1 Maximum Output Current for Automotive Exterior Ligh

Texas Instruments

Published Date: 12/22/2015


This application report provides the method of calculating the maximum output current of the TPS92630-Q1 device in exterior-lighting automotive applications. The junction-to-ambient thermal resistance (RθJA) of the TPS92630-Q1 device is the key parameter when calculating the maximum output current of the TPS92630-Q1 device. This application report provides a method about how to measure the RθJA of TPS92630-Q1 reference boards. The reference boards are fabricated with different copper thickness. A comparison table of both measured and simulated RθJA of different copper thickness is given in the report for correlation.


Part Number Name Companion Part
TL4242QKTTRQ1 TL4242QKTTRQ1 Buy Datasheet
TL4242TDRJRQ1 TL4242TDRJRQ1 Buy Datasheet
TPS92630QPWPRQ1 TPS92630QPWPRQ1 Buy Datasheet
TPS92638QPWPRQ1 TPS92638QPWPRQ1 Buy Datasheet