08
CE,FCC
CUL, CB,TUV
7. Conducted EMI
8.1 Safety Requirement
The AC leakage current is less than 3.5mA when the power supply connect to 264Vac/50Hz .
8.2 Leakage Current
The insulation resistance should be not less than 30M ohm after applying of 500VDC for 1 minute.
8.3 Insulation Resistance
The power supply shall withstand for 1 minute without breakdown the application of a 60Hz 1500V AC
voltage applied between both input line and chassis (20mA DC cut-off current). Main transformer shall
similarly withstand 3000Vac applied between both primary and secondary windings for a minimum of
one minute.
8.4 Dielectric Voltage Withstand
8. Product Safety
A TTL compatible signal for the purpose of initiating an orderly start-up procedure under
normal input operating conditions. During power up, this signal is asserted ( low ) until
+5V is under regulation and AC reaches min. line specification range. After all voltage
are going appropriate level, the system may have a turn on delay of 100mS, but no
greater than 500mS. During power off the signal should go to low level 5V is
out of regulation. The low level is 0 to 0.8V and high level is 4.75 to 5.25V. The " Power
Good "signal can drive up to 6 standard TTL loads.
9. Power Good Signal
Time Diagram
Содержание ST55F-G
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