Data Sheet

ADP1761

APPLICATIONS INFORMATION

analog.com

Rev. D | 17 of 21

Figure 34. 6400 mm2 of PCB Copper, TA = 25°C

Figure 35. 500 mm2 of PCB Copper, TA = 25°C

Figure 36. 25 mm2 of PCB Copper, TA = 25°C

Figure 37. 6400 mm2 of PCB Copper, TA = 50°C

Figure 38. 500 mm2 of PCB Copper, TA = 50°C

Figure 39. 25 mm2 of PCB Copper, TA = 50°C

In cases where the board temperature is known, the thermal char-

acterization parameter (ΨJB) can estimate the junction temperature

rise. The maximum junction temperature (TJ) is calculated from

the board temperature (TB) and power dissipation (PD) using the

following formula: