EPR-9 Datasheet, PDF (19/32 Pages) Power Integrations, Inc. – Engineering Prototype Report 5 W, Universal Input, Dual Output, Isolated, TNY266 (EP9)

03-April-2001
5 W Universal Input Dual Output Isolated TNY266
CH4
CH2
CH4
CH2
Figure 8.4.2.3 - I_D and V_DS @ 85 V_AC.
CH4: I_D (0.2 A/div),
CH2: V_DS (100 V/div)
Figure 8.4.2.4 - I_D and V_DS @ 265 V_AC.
CH4: I_D (0.2 A/div),
CH2: V_DS (100 V/div)
8.4.2 Auto-Restart
Maximum load, before power limiting (entering auto-restart) @ 25 °C
V_IN (V_AC, 60 Hz)
85
Load condition
1
5 V_DC output
1.09 A @ 4.74 V
12 V_DC output
0.2 A @ 13.04 V
85
2
0.5 A @ 4.89 V
0.45 A @ 12.46 V
Total output (W)
7.8
8.05
Load condition 1: 5 V output overloaded; 12 V_OUT full load.
Load condition 2: 12 V output overloaded; 5 V_OUT full load.
Because of higher efficiency on the 12 V output, the maximum power output occurs when the 12 V output
is overloaded.
Figure 8.4.3 – Auto restart @ 85 V_AC.
CH4: I_D (0.2 A/div),
CH3: V_DS (100 V/div)
Page 19 of 32
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