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V300B15C250BL Datasheet(PDF) 9 Page - Vicor Corporation |
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V300B15C250BL Datasheet(HTML) 9 Page - Vicor Corporation |
9 / 13 page 300V Mini Family Rev 8.8 vicorpower.com Page 9 of 13 4/2013 800 735.6200 300V Input Disable Disable = PC <2.3V +Out +S SC –S –Out +In PC PR –In Figure2—Moduleenable/disable. Figure4—LEDon-stateindicator. 4k Ω "Module Enabled" +Out +S SC –S –Out +In PC PR –In Optocoupler +Out +S SC –S –Out +In PC PR –In 4 kΩ Alarm 1.00V +Out +S SC –S –Out +In PC PR –In +OUT +S SC –S – OUT +IN PC PR –IN Input Undervoltage 2-20 ms typ. f (VIN) Auto Restart 5.7 Vdc (0-3 mA) 50 Ω SW2 SW3 1.23 Vdc 6 K 1 K SW1 SW1, 2, & 3 shown in "Fault" position Input Overvoltage (See Note 1) Overtemperature Module Faults 1 Not applicable for 300 Vdc input family 1 M Figure3—PC/SCmodulealarmlogic. Figure6—Isolatedon-stateindicator. 2–20 ms typ. Fault SC PC 1.23 V 5.7 V 40 μs typ. Figure5—PC/SCmodulealarmtiming. Figure7—Secondarysideon-stateindicator. ModuleEnable/Disable The module may be disabled by pulling PC to 0 V (2.3 V max) with respect to the –Input. This may be done with an open collector transistor, relay, or optocoupler. Converters may be disabled with a single transistor or relay either directly or via “OR’ing” diodes for 2 or more converters. See Figure 2. PrimaryAuxiliarySupply During normal operation only, the PC Pin can source 5.7 V @ 1.5 mA. In the example shown in Figure 4, PC powers a mod- ule enabled LED. ModuleAlarm The module contains “watchdog” circuitry which monitors input voltage, operating temperature and internal operating parameters. In the event that any of these parameters are outside of their allowable operating range, the module will shut down and PC will go low. PC will periodically go high and the module will check to see if the fault (as an example, Input Undervoltage) has cleared. If the fault has not been cleared, PC will go low again and the cycle will restart. The SC pin will go low in the event of a fault and return to its nor- mal state after the fault has been cleared. See Figures 3 and 5. PRIMARYCONTROL-PCPIN |
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