TLS115D0

High Precision Voltage Tracker

Application information

Data Sheet

22

Rev. 1.00

2016-10-13

Based on the above calculation the proper PCB type and the necessary heat sink area can be determined with

reference to the specification in “Thermal resistance” on Page 8.

Example

Application conditions:

= (13.5V – 5V) x 100 mA + 13.5 V x 3.5 mA

= 0.897 W

= (150°C – 75°C) / 0.897 W

= 83.61 K/W

“Thermal resistance” on Page 8, at least 300 mm² heatsink area is required on the FR4 1s0p PCB, or the FR4

2s2p board can be used.

5.4

Further application information

• For further information you may contact http://www.infineon.com/