PRM48BH480T250A00 Datasheet, PDF (22/44 Pages) Vicor Corporation – PRM™ Regulator

PRM48BH480 X 250A00
Effective Internal Input and Output Capacitance vs. Applied
Voltage
5.0
4.5
INPUT AND OUTPUT
CAPACITANCE
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0
5
10
15
20
25
30
35
40
45
50
55
Applied Voltage [V]
Input and Output Capacitance (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
Switching ¹⁶
Frequency
(kHz))
14
1000
12
975
10
950
8
925
6
Input Charge
(µC)
900
4
875
2
850
0
38
40
42
44
46
48
50
52
54
56
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 = 5.21 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
Output Charge ⁶
(µC)
900
4
875
2
850
0
38
40
42
44
46
48
50
52
54
56
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 = 5.21 A
Output Power vs. SHARE / CONTROL NODE Voltage
VIN = 48 V, VOUT = 48 V, TCASE = 25 °C
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 _5.8
5.9
5.7
5.5
5
4.5 _4.3
4.3
4.1
4
‐40
‐20
0
20
40
60
Case Temperature [°C]
80
100
IOUT: 2.08 A
IOUT: 5.21 A
Figure 17: Typical SHARE / CONTROL NODE Voltage vs. T_CASE and
I_OUT; V_IN = 48 V, V_OUT =48 V
- 22 -
Rev. 1.0
11/2012