B384F120T30_10 VICOR [Vicor Corporation], B384F120T30_10 Datasheet - Page 10

• Manufacturer Part Number: B384F120T30_10
• Description: Bus Converter
• Manufacturer: VICOR [Vicor Corporation]

Figure 20 — BCM test circuit
V•I Chip Bus Converter Level 1 DC Behavioral Model for 384 V to 12 V, 300 W
Figure 21 — This model characterizes the DC operation of the V•I Chip bus converter, including the converter transfer function and its losses. The model enables
estimates or simulations of output voltage as a function of input voltage and output load, as well as total converter power dissipation or heat generation.
V•I Chip Bus Converter Level 2 Transient Behavioral Model for 384 V to 12 V, 300 W
Figure 22 — This model characterizes the AC operation of the V•I Chip bus converter including response to output load or input voltage transients or steady state
modulations. The model enables estimates or simulations of input and output voltages under transient conditions, including response to a stepped load with or
without external filtering elements.
Behavioral & Test Circuits
electrolytic
2.2 µF
Fuse
1 A
F1
C1
V
V
+
+
–
–
IN
IN
L
IN
= 5 nH
Enable/Disable Switch
SW1
C
vicorpower.com
Input reflected ripple
measurement point
IN
D1
2 kΩ
R2
20.8 m
0.2µF
R
C
IN
15 mA
15 mA
Ω
I
I
Q
Q
TM
RSV
PC
+In
-In
BCM
800-735-6200
Ro
1/32 • Iout
K
1/32 • Iout
+Out
+Out
-Out
-Out
+
–
+
–
V
V
K
K
•
•
I
10 mΩ
I
R3
+
–
+
–
I
OUT
I
OUT
1/32 • Vin
V•I Chip Bus Converter
10 µF
1/32 • Vin
C3
Load
0.505 m
0.107 nH
+
–
Ω
Notes:
Source inductance should be no more than 200 nH. If source inductance is
greater than 200 nH, additional bypass capacitance may be required.
C3 should be placed close to the load.
R3 may be ESR of C3 or a separate damping resistor.
D1 power good indicator will dim when a module fault is detected.
15.0 mΩ
R
R
15.0 m
OUT
OUT
C
OUT
Ω
R
0.45 m
31 µF
C
Lout = 1.1 nH
OUT
Ω
B384F120T30
+
–
+
–
V
V
OUT
OUT
Page 10 of 12
Rev. 2.4
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