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P048F048T12AL Datasheet(PDF) 2 Page - Vicor Corporation

Part # P048F048T12AL
Description  VI Chip - PRM-AL Pre-Regulator Module
Download  14 Pages
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Manufacturer  VICOR [Vicor Corporation]
Direct Link  http://www.vicorpower.com
Logo VICOR - Vicor Corporation

P048F048T12AL Datasheet(HTML) 2 Page - Vicor Corporation

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vicorpower.com
800-735-6200
V•I Chip Pre-Regulator Module
P048F048T12AL
Rev. 1.0
Page 2 of 14
PRELIMINARY
Overview of Adaptive Loop Compensation
Adaptive Loop compensation, illustrated in Figure 1, contributes to
the bandwidth and speed advantage of Factorized Power. The PRM
monitors its output current and automatically adjusts its output
voltage to compensate for the voltage drop in the output
resistance of the VTM. ROS sets the desired value of the VTM
output voltage, Vout; RCD is set to a value that compensates for
the output resistance of the VTM (which, ideally, is located at the
point of load). For selection of ROS and RCD, refer to Table 1 below
or Page 9.
The V•I Chip’s bi-directional VC port :
1. Provides a wake up signal from the PRM to the VTM that
synchronizes the rise of the VTM output voltage to that of the PRM.
2. Provides feedback from the VTM to the PRM to enable the PRM
to compensate for the voltage drop in VTM output resistance, RO.
-In
PC
VC
TM
+In
-Out
+Out
VTM
+Out
-Out
K
Ro
+Out
–Out
+In
–In
VC
PC
TM
IL
VH
PR
NC
SG
SC
PRM-AL
OS
NC
CD
L
O
A
D
Factorized
Bus (Vf)
Vo = VL ± 1.0%
(Io•Ro)
K
Vf =
VL
+
K
Vin
ROS
RCD
Output Power
Designator
(=Pf /10)
P
048
F
048
T
12
AL
Pre-Regulator
Module
Input Voltage
Designator
Product Grade Temperatures (°C)
Grade
Storage
Operating
T
-40 to150 -40 to125
M
-65 to150 -55 to125
Configuration
(Fig.21)
Nominal
Factorized Bus
Voltage
AL = Adaptive Loop
Desired Load Voltage (Vdc)
VTM P/N(1)
Max VTM Output Current (A)(2)
ROS (kΩ)(3)
RCD (Ω)(3)
1.0
V048F015T100
100
3.57
26.1
1.2
V048F015T100
100
2.94
32.4
1.5
V048F015T100
100
2.37
39.2
1.8
V048F020T080
80
2.61
35.7
2.0
V048F020T080
80
2.37
39.2
3.3
V040F033T060
60
2.89
32.6
5.0
V048F060T040
40
2.87
33.2
10
V048F120T025
25
2.86
32.9
12
V048F120T025
25
2.37
39.2
15
V048F160T019
18.8
2.49
37.4
24
V048F240T012
12.5
2.37
39.2
28
V048F320T009
9.4
2.74
35.7
36
V048F480T006
6.3
3.16
30.1
48
V048F480T006
6.3
2.37
39.2
Table 1 — Configure your Chip Set using the PRM-AL
Note:
(1) Verify the configuration option and product grade temperature before ordering as shown above.
(2) See “PRM output power vs. VTM output power” on Page 10
(3) 1% precision resistors recommended
Figure 1 — With Adaptive Loop control, the output of the VTM is regulated over the load current range with only a single interconnect between the PRM and
VTM and without the need for isolation in the feedback path.
General Specifications
V•I Chip Pre-Regulator Module
Part Numbering


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