V24C12C100BF2 Vicor Corporation, V24C12C100BF2 Datasheet - Page 8

• Manufacturer Part Number: V24C12C100BF2
• Manufacturer: Vicor Corporation

Vicor Corp.
The module may be disabled by pulling PC below 2.3 V with
respect to the –Input. This may be done with an open collector
transistor, relay, or optocoupler. Multiple converters may be
disabled with a single transistor or relay either directly or via
“OR’ing” diodes. See Figure 1.
At 5.7 V, PC can source up to 1.5 mA. In the example shown
in Figure 3, PC powers a module enabled LED.
Figure 1 — Module enable/disable.
Figure 3 — LED on-state indicator.
Figure 5 — Isolated on-state indicator.
Enabled"
"Module
Disable = PC <2.3V
Optocoupler
Disable
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4kΩ
4kΩ
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+In
PC
PR
–In
+In
PC
PR
–In
+In
PC
PR
–In
Figure 2 — PC/SC module alarm logic.
Figure 4 — PC/SC module alarm timing.
Figure 6 — Secondary side on-state indicator.
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,
overtemperature) 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 normal
state after the fault has been cleared. See Figures 2 and 4.
Fault
PC
SC
[a]
24V Micro Family
Not applicable for 300 Vdc Input family
1.23V
5.7V
+IN
PC
PR
–IN
1 M
SW1
+OUT
–OUT
(0-3 mA)
5.7 Vdc
SC
2-20 ms typ.
SW1, 2, & 3 shown
Restart
in "Fault" position
f(V
Auto
IN
)
40μs typ.
2-20ms typ.
1.00 V
SW2
Rev. 4.7
Input Undervoltage
Input Overvoltage
Over Temperature
Module Faults
Comparator
50 Ω
SW3
1.23
Vdc
[a]
1 K
6 K
+OUT
–OUT
Alarm
SC
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