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CCB250 Datasheet, PDF (6/12 Pages) XP Power Limited – 250 W Convection Cooled
Characteristic
Signals
Power Fail
Remote On/Off (Inhibit/Enable)
Standby Supply V2
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Notes & Conditions
Uncomitted opto isolated transistor, normally off when AC is good (see fig.9 - 11)
Provides ≥ 5 ms (typically 20-30ms) warning of loss of output from AC failure
Uncommited isolated optocoupler diode, powered diode inhibits the supply (see fig.12-17)
Isolated 5 V/0.5 A supply, always present when AC supplied.
Signals
Power Fail
Figure 9
POWER SUPPLY
8V Max 3 mA
Signal Connector
Pin 2, 4 & 6
CON 1
5 V Standby
2K2
Pin 7 CON 1
Power Fail
Collector
Power Fail
Emitter
Pin 8 CON 1
5 V Standby Rtn
Pin 1, 3 & 5
CON 1
Transistor On (<0.8 V): Input & Output Not OK
Transistor Off (>4.5 V): Input & Output OK
Power Fail
V1
Figure 10
Power Fail signal example at AC switch off
Figure 11
V1 warning time example at Power Fail signal 230 VAC
250 W load (37 ms)
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