ICE3AR1580VJZ Datasheet, PDF (38/43 Pages) Infineon Technologies AG – Of f -Line SMPS Cur rent Mode Cont rol ler wi th integrated 800V

CoolSET™ F3R80
ICE3AR1580VJZ
Input Power Curve
7
Input Power Curve
Two input power curves giving the typical input power versus ambient temperature are showed below;
Vin=85Vac~265Vac (Figure 42) and Vin=230Vac+/-15% (Figure 43). The curves are derived based on a typical
discontinuous mode flyback model which considers either 50% maximum duty ratio or 100V maximum
secondary to primary reflected voltage (higher priority). The calculation is based on no copper area as heatsink
for the device. The input power already includes the power loss at input common mode choke, bridge rectifier
and the CoolMOS™. The device saturation current (ID_Puls @ Tj=125°C) is also considered.
To estimate the output power of the device, it is simply multiplying the input power at a particular operating ambient
temperature with the estimated efficiency for the application. For example, a wide range input voltage (Figure 42),
operating temperature is 50°C, estimated efficiency is 85%, then the estimated output power is 30W (36W * 85%).
Figure 42: Input power curve Vin=85~265Vac; P_in=f(T_a)
Figure 43: Input power curve Vin=230Vac; P_in=f(T_a)
Data Sheet
38
V2.0, 2014-01-20