PRM48AF480T400A00 Datasheet, PDF (22/45 Pages) Vicor Corporation – PRM™ Regulator

PRM48A x 480 y 400A00
Effective Internal Input and Output Capacitance vs. Applied
Voltage
14
12
INPUT AND OUTPUT
CAPACITANCE
INPUT CAPACITANCE ONLY
10
8
6
4
2
0
0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75
Applied Voltage [V]
Input and Output Capacitance (uF)
Input Capacitance Only (uF)
Figure 13 Effective Internal Input and Output Capacitance vs. Voltage
– Ceramic Type
Power Train Switching Frequency and
Periodic Input Charge vs. Input Voltage - Full Load
1050
1025
16
Switching
Frequency
(kHz))
14
1000
12
975
10
950
8
925
6
900
4
Input Charge
(µC)
875
2
850
0
35
40
45
50
55
60
65
70
75
Input Voltage [V]
VOUT: 20 V
VOUT: 48 V
VOUT: 55 V
Figure 14: Power Train Switching Frequency and Periodic Input
Charge vs. V_IN, V_OUT; I_OUT = 8.33 A
Power Train Switching Frequency and
Periodic Output Charge vs. Input Voltage - Full Load
1050
1025
16
Switching
Frequency
(kHz))
14
1000
12
975
10
950
8
925
6
Output Charge
900
(µC)
4
875
2
850
0
35
40
45
50
55
60
65
70
75
Input Voltage [V]
VOUT: 20 V
VOUT: 48 V
VOUT: 55 V
Figure 15: Power Train Switching Frequency and Periodic Output
Charge vs. V_IN, V_OUT; I_OUT = 8.33 A
Output Power vs. SHARE / CONTROL NODE Voltage
VIN = 48 V, VOUT = 48 V, TCASE = 25 °C
400
350
300
250
200
150
100
50
0
2.5
3
3.5
4
4.5
5
5.5
6
6.5
7
V_{CONTROL_NODE} [V]
Typical
Figure 16 Output Power vs. SHARE / CONTROL NODE Voltage;
V_IN = 48 V, V_OUT = 48 V, T_CASE = 25 °C
SHARE / CONTROL NODE Voltage vs. Case Temperature
VIN = 48 V VOUT = 48 V
6.5
6.2
6.1
6.0
6
5.5
5
4.5
4.6
4.5
4.3
4
‐40
‐20
0
20
40
60
Case Temperature [°C]
80
100
IOUT: 4.165 A
IOUT: 8.33 A
Figure 17: Typical SHARE / CONTROL NODE Voltage vs. T_CASE and
I_OUT; V_IN = 48 V, V_OUT =48 V
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Rev. 1.0
11/2012