ICE3RBR0665JZ Datasheet, PDF (26/31 Pages) Infineon Technologies AG – Off-Line SMPS Current Mode Controller with integrated 650V

ICE3RBR0665JZ
Input Power Curve
6 Input Power Curve
Two input power curves giving the typical input power versus ambient temperature are showed below;
Vin=85Vac~265Vac (Figure 31) and Vin=230Vac+/-15% (Figure 32). 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 (I_{D_Puls} @ T_j=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 31),
operating temperature is 50°C, estimated efficiency is 85%, then the estimated output power is 40W (47W * 85%).
Figure 31 Input power curve Vin=85~265Vac; P_in=f(T_a)
Figure 32 Input power curve Vin=230Vac+/-15%; P_in=f(T_a)
Version 2.0
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7 Jun 2013