End of Life
P048F048T24AL
P048F048M24AL
PRMTM
Regulator
• 48 V input V•I ChipTM PRM
• Adaptive Loop feedback
• Vin range 36 – 75 Vdc
• ZVS buck-boost regulator
©
Vin = 36 – 75 V
Vf = 26 – 55 V
Pf = 240 W
If = 5 A
• 1.45 MHz switching frequency
• High density – 813 W/in3
2
• Small footprint – 215 W/in
• 96% Efficiency
• Low weight – 0.5 oz (15 g)
• 125˚C operation (Tj)
Product Description
Absolute Maximum Ratings
The V•I Chip regulator is a very efficient non-isolated
regulator capable of both boosting and bucking a wide range
input voltage. It is specifically designed to provide a controlled
Factorized Bus distribution voltage for powering downstream
VTMTM Transformer — fast, efficient, isolated, low noise
Point-of-Load (POL) converters. In combination, PRMs and
VTMsTM form a complete DC-DC converter subsystem
offering all of the unique benefits of Vicor’s Factorized Power
ArchitectureTM (FPA)TM: high density and efficiency; low noise
operation; architectural flexibility; extremely fast transient
response; and elimination of bulk capacitance at the Point-ofLoad (POL).
In FPA systems, the POL voltage is the product of the
Factorized Bus voltage delivered by the PRM and the
"K-factor" (the fixed voltage transformation ratio) of a
downstream VTM. The PRM controls the Factorized Bus
voltage to provide regulation at the POL. Because VTMs
perform true voltage division and current multiplication,
the Factorized Bus voltage may be set to a value that is
substantially higher than the bus voltages typically found in
"intermediate bus" systems, reducing distribution losses and
enabling use of narrower distribution bus traces. A PRM-VTM
chip set can provide up to 100 A or 230 W at a FPA system
density of 169 A/in3 or 390 W/in3 — and because the PRM
can be located, or "factorized," remotely from the POL, these
power densities can be effectively doubled.
The PRM described in this data sheet features a unique
"Adaptive Loop" compensation feedback: a single wire
alternative to traditional remote sensing and feedback loops
that enables precise control of an isolated POL voltage
without the need for either a direct connection to the load
or for noise sensitive, bandwidth limiting, isolation devices
in the feedback path.
Parameter
Values
Unit
+In to -In
-1.0 to 85.0
Vdc
PC to -In
-0.3 to 6.0
Vdc
PR to -In
-0.3 to 9.0
Vdc
IL to -In
-0.3 to 6.0
Vdc
VC to -In
-0.3 to 18.0
Vdc
Notes
+Out to -Out
-0.3 to 59
Vdc
SC to -Out
-0.3 to 3.0
Vdc
VH to -Out
-0.3 to 9.5
Vdc
OS to -Out
-0.3 to 9.0
Vdc
CD to -Out
-0.3 to 9.0
Vdc
SG to -Out
100
mA
Continuous output current
5
Adc
Continuous output power
240
W
Case temperature during reflow
225
245
°C
°C
MSL 5
MSL 6
Operating junction temperature
-55 to 125
-40 to 125
°C
°C
M-Grade
T-Grade
Storage temperature
-65 to 125
-40 to 125
°C
°C
M-Grade
T-Grade
DC-DC Converter
0.01 µF
10 kΩ
VC
PC
TM
IL
NC
PR
PRM™ -AL
Module
+In
VH
SC
SG
OS
NC
CD
ROS
Factorized
Bus (VF )
+Out
+In
+Out
RCD
+Out
0.4 µH
VIN
TM
VC
PC
VTM™
Module
10 Ω
–In
–Out
– In
– Out
K
Ro
L
O
A
D
– Out
P048F048T24AL is used with 048 input series VTM to provide a regulated & isolated output.
vicorpower.com
800-735-6200
V•I Chip Regulator
P048F048T24AL
Rev. 3.9
Page 1 of 14
End of Life
General Specifications
V•I Chip Regulator
Part Numbering
P
048
F
048
T
24
AL
Regulator
Input Voltage
Designator
Configuration
F = J-lead
T = Through hole
Nominal
Factorized Bus
Voltage
Product Grade Temperatures (°C)
Grade
Storage Operating (TJ)
T
-40 to125 -40 to125
M
-65 to125 -55 to125
Output Power
Designator
(=Pf /10)
AL = Adaptive Loop
Overview of Adaptive Loop Compensation
The V•I Chip’s bi-directional VC port :
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.
0.01 µF
10 kΩ
VC
PC
TM
IL
NC
PR
PRM™ -AL
Module
+In
VH
SC
SG
OS
NC
CD
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.
Factorized
Bus (VF )
ROS
+Out
+In
+Out
RCD
+Out
0.4 µH
VIN
TM
VC
PC
VTM™
Module
10 Ω
–In
– In
–Out
– Out
K
Ro
L
O
A
D
– Out
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.
Desired Load Voltage (Vdc)
1.0
1.2
1.5
1.8
2.0
3.0
3.3
5.0
8.0
9.6
10
12
15
24
28
36
48
VTM P/N(1)
V048F015T100
V048F015T100
V048F015T100
V048F020T080
V048F020T080
V048F030T070
V048F040T050
V048F060T040
V048F080T030
V048F096T025
V048F120T025
V048F120T025
V048F160T015
V048F240T012
V048F320T009
V048F480T006
V048F480T006
Max VTM Output Current (A)(2)
100
100
100
80
80
70
50
40
30
25
25
25
15
12.5
9.4
6.3
6.3
ROS (kΩ)(3)
3.57
2.94
2.37
2.61
2.37
2.37
2.89
2.87
2.37
2.37
2.86
2.37
2.49
2.37
2.74
3.16
2.37
RCD (Ω)(3)
26.1
32.4
39.2
35.7
39.2
39.2
32.6
33.2
32.9
32.9
32.9
39.2
37.4
39.2
35.7
30.1
39.2
Note:
(1) See Table 2 on page 9 for nominal Vout range and K factors.
(2) See “PRM output power vs. VTM output power” on Page 10
(3) 1% precision resistors recommended
Table 1 — Configure your Chip Set using the PRM-AL
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V•I Chip Regulator
P048F048T24AL
Rev. 3.9
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End of Life
Electrical Specifications
V•I Chip Regulator
Input Specs (Conditions are at 48 Vin, 48 Vf, full load, and 25°C ambient unless otherwise specified)
Parameter
Input voltage range
Min
Typ
Max
Unit
36
48
75
Vdc
1
V/µs
Input dV/dt
Input undervoltage turn-on
33.8
Input undervoltage turn-off
30.4
31.8
Input overvoltage turn-on
75.7
77.3
35.3
Vdc
Vdc
Vdc
Input overvoltage turn-off
78.8
81.0
Input quiescent current
0.5
1
Input current
5.2
Input reflected ripple current
Vdc
mA
1.0
Internal input capacitance
Recommended external input capacitance
3.0
PC low
Adc
107
No load power dissipation
Note
mA p-p
6.0
See Figures 4 & 5
W
5
µF
Ceramic
100
µF
See Figure 5 for input filter circuit.
Source impedance dependent
Input Waveforms
Figure 2 — Vf and PC response from power up
Figure 3 — Vf turn-on waveform with inrush current – PC enabled
Reflected
Ripple
Measurement
10 A
+IN
0.01 μF
10 kΩ
VC
PC
TM
IL
NC
PR
PRM-AL
+In
+Out
–In
–Out
VH
SC
SG
OS
NC
CD
2.37 kΩ
+ OUT
100 μF
Al-Electrolytic
–IN
Figure 5 — Input filter capacitor recommendation
Figure 4 — Input reflected ripple current
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– OUT
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V•I Chip Regulator
P048F048T24AL
Rev. 3.9
Page 3 of 14
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Electrical Specifications (continued)
V•I Chip Regulator
Output Specs (Conditions are at 48 Vin, 48 Vf, full load, and 25°C ambient unless otherwise specified)
Parameter
Min
Typ
Output voltage range
26
48
Output power
0
Output current
0
DC current limit
5.25
6.0
Average short circuit current
Max
Unit
Note
55
Vdc
Factorized Bus voltage (Vf) set by ROS
240
W
5
Adc
6.6
Adc
IL pin floating
0.5
A
Auto recovery
Set point accuracy
1.5
Line regulation
0.17
0.2
%
Low line to high line
Load regulation
0.5
0.7
%
No CD resistor
Load regulation (at VTM output)
1.0
2.0
%
Adaptive Loop
5
10
%
59.4
Vdc
Current share accuracy
%
Efficiency
Full load
96
Output overvoltage set point
56
%
See Figure 6,7 & 8
Output ripple voltage
No external bypass
2.3
2.5
%
Factorized Bus, see Figure 13
With 10 µF capacitor
0.35
1.1
%
Factorized Bus, see Figure 14
1.45
1.55
MHz
From application of power
135
300
ms
See Figure 2
From PC pin high
100
µs
See Figure 3
Internal output capacitance
5
µF
Ceramic
Switching frequency
1.35
Fixed frequency
Output turn-on delay
Factorized Bus capacitance
47
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800-735-6200
µF
V•I Chip Regulator
P048F048T24AL
Rev. 3.9
Page 4 of 14
End of Life
Electrical Specifications (continued)
V•I Chip Regulator
Efficiency Graphs
Efficiency vs. Output Current
98
96
96
94
94
92
90
Vin
88
36 V
48 V
75 V
86
84
Efficiency (%)
Efficiency (%)
Efficiency vs. Output Current
98
92
90
Vin
88
36 V
48 V
75 V
86
84
82
82
80
80
78
78
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
Output Current (A)
Output Current (A)
Figure 7 — Efficiency vs. output current at 36 Vf
Figure 6 — Efficiency vs. output current at 48 Vf
Efficiency vs. Output Current
98
96
Efficiency (%)
94
92
90
Vin
88
36 V
48 V
75 V
86
84
82
80
78
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
Output Current (A)
Figure 8 — Efficiency vs. output current at 26 Vf
vicorpower.com
800-735-6200
V•I Chip Regulator
P048F048T24AL
Rev. 3.9
Page 5 of 14
End of Life
Electrical Specifications (continued)
V•I Chip Regulator
Output Waveforms
Figure 9 — Transient response; PRM alone 48 Vin, 0-5-0A, no load
capacitance, local loop
Figure 10 — Transient response; PRM alone 36 Vin, 0-5-0A no load
capacitance, local loop
Figure 11 — Transient response; PRM alone 75 Vin, 0-5-0A no load
capacitance, local loop.
Figure 12 — PC during fault – frequency will vary as a function of line voltage
Figure 13 — Output ripple full load no bypass capacitance
Figure 14 — Output ripple full load 10µF bypass capacitance
vicorpower.com
800-735-6200
V•I Chip Regulator
P048F048T24AL
Rev. 3.9
Page 6 of 14
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Electrical Specifications (continued)
V•I Chip Regulator
Auxiliary Pins (Conditions are at 48 Vin, 48 Vf, full load, and 25°C ambient unless otherwise specified)
Parameter
VC (VTM Control)
Pulse width
Peak voltage
PC (Primary Control)
DC voltage
Module disable voltage
Module enable voltage
Disable hysteresis
Min
Typ
Max
Unit
8
12
12
14
18
18
ms
V
4.8
2.3
5.0
2.4
2.5
100
5.2
Vdc
Vdc
Vdc
mV
1.75
1.90
Current limit
Enable delay time
Disable delay time
IL (Current Limit Adjust)
Voltage
Accuracy
PR (Parallel Port)
Voltage
Source current
External capacitance
VH (Auxiliary Voltage)
Range
Regulation
Current
SC (Secondary Control)
Voltage
Internal capacitance
External capacitance
OS (Output Set)
Set point accuracy
Reference offset
CD (Compensation Device)
External resistance
2.6
100
1
µs
µs
1
± 15
V
%
0.6
1
7.5
100
8.7
9.0
0.04
9.3
5
1.23
mA
1.24
0.22
1.25
0.7
± 1.5
±4
V
mA
pF
Vdc
%/mA
mA p
Referenced to –Out
Referenced to –In
Referenced to –In
Source only after start up; not to be used for
aux. supply; 100 kΩ minimum load
impedance to assure start up
Based on DC current limit set point
Referenced to SG; See description Page 8
Typical internal bypass C= 0.1 µF
Maximum external C=0.1 µF, referenced to SG
Vdc
µF
µF
Referenced to SG
%
mV
Includes 1% external resistor
Ω
20
Note
Omit resistor for regulation at output of PRM
General Specs
Parameter
MTBF
MIL-HDBK-217F
Min
Typ
Max
Unit
Note
2.2
Mhrs
25°C, GB
cTÜVus
UL/CSA 60950-1, EN60950-1
CE Marked for Low Voltage Directive and RoHS Recast Directive, as applicable
See Mechanical Drawings, Figures 19 – 22
0.53/15
oz / g
Agency approvals
Mechanical parameters
Weight
Dimensions
Length
Width
Height
Thermal
1.28/32,5
0.87/22,0
0.265/6,73
Over temperature shutdown
Thermal capacity
Junction-to-case thermal impedance (RθJC)
Junction-to-board thermal impedance (RθJB)
Case-to-ambient
vicorpower.com
130
135
9.3
1.1
2.1
3.7
800-735-6200
in /mm
in /mm
in /mm
140
°C
Ws/°C
°C/W
°C/W
°C/W
V•I Chip Regulator
Junction temperature
With 0.25” heat sink @ 300 LFM
P048F048T24AL
Rev. 3.9
Page 7 of 14
End of Life
Pin / Control Functions
V•I Chip Regulator
+In / -In DC Voltage Ports
The V•I Chip maximum input voltage should not be exceeded. PRMs
have internal over / undervoltage lockout functions that prevent
operation outside of the specified input range. PRMs will turn on when
the input voltage rises above its undervoltage lockout. If the input
voltage exceeds the overvoltage lockout, PRMs will shut down until the
overvoltage fault clears. PC will toggle indicating an out of bounds
condition.
+Out / -Out Factorized Voltage Output Ports
These ports provide the Factorized Bus voltage output. The –Out port is
connected internally to the –In port through a current sense resistor.
The PRM has a maximum power and a maximum current rating and is
protected if either rating is exceeded. Do not short –Out to –In.
VC – VTM Control
The VTM Control (VC) port supplies an initial VCC voltage to
downstream VTMs, enabling the VTMs and synchronizing the rise of
the VTM output voltage to that of the PRM. The VC port also provides
feedback to the PRM to compensate for voltage drop due to the VTM
output resistance. The PRM’s VC port should be connected to the VTM
VC port. A PRM VC port can drive a maximum of two (2) VTM VC ports.
PC – Primary Control
The PRM voltage output is enabled when the PC pin is open circuit
(floating). To disable the PRM output voltage, the PC pin is pulled low.
Open collector optocouplers, transistors, or relays can be used to
control the PC pin. When using multiple PRMs in a high power array,
the PC ports must be tied together to synchronize their turn on.
During an abnormal condition the PC pin will pulse (Fig.12) as the PRM
initiates a restart cycle. This will continue until the abnormal condition
is rectified. The PC should not be used as an auxiliary voltage supply,
nor should it be switched at a rate greater than 1 Hz.
TM – Factory Use Only
IL – Current Limit Adjust
The PRM has a preset, maximum, current limit set point. The IL port
may be used to reduce the current limit set point to a lower value. See
“adjusting current limits” on page 10.
PR – Parallel Port
The PR port signal, which is proportional to the PRM output power,
supports current sharing of two PRMs. To enable current sharing,
PR ports should be interconnected. Steps should be taken to minimize
coupling noise into the interconnecting bus. Terminate this port with a
10 k equivalent resistance to SG, e.g. 10 k for a single PRM, 20 k each
for 2 PRMs in parallel, 30 k each for 3 PRMs in parallel etc.. Please
consult Vicor Applications Engineering regarding additional
considerations when paralleling more than two PRMs.
VH – Auxiliary Voltage
VH is a gated (e.g. mirrors PC), non-isolated, nominally 9 Volt,
regulated DC voltage (see “Auxiliary Pins” specifications, on Page 7)
that is referenced to SG. VH may be used to power external circuitry
having a total current consumption of no more than 5 mA under either
transient or steady state conditons including turn-on.
vicorpower.com
800-735-6200
AL Version
4
+OUT
–OUT
3
2
1
VC
VH
A
SC
B
B
PC
SG
C
C
TM
OS
D
D
IL
NC
E
E
NC
CD
F
F
PR
G
G
H
H
A
J
J
K
K
L
L
M
M
N
N
P
P
+IN
–IN
Bottom View
Signal Name
+In
–In
VC
PC
TM
IL
PR
VH
SC
SG
OS
CD
+Out
–Out
Designation
G1-K1,G2-K2
L1-P1, L2-P2
A1,A2
B1, B2
C1, C2
D1, D2
F1, F2
A3, A4
B3, B4
C3, C4
D3, D4
F3, F4
G3-K3, G4-K4
L3-P3, L4-P4
Figure 15 — PRM pin configuration
SC – Secondary Control
The load voltage may be controlled by connecting a resistor or voltage
source to the SC port referenced to SG. The slew rate of the output
voltage may be controlled by controlling the rate-of-rise of the voltage
at the SC port (e.g., to limit inrush current into a capacitive load).
SG – Signal Ground
This port provides a low inductance Kelvin connection to –In and
should be used as reference for the OS, CD, SC,VH and IL ports.
OS – Output Set
The application-specific value of the Factorized Bus voltage (Vf) is set
by connecting a resistor between OS and SG. Resistor value selection is
shown in Table 1 on Page 2, and described on Page 9. If no resistor is
connected, the PRM output will be approximately one volt. If set
resistor is not collocated with the PRM, a local bypass capacitor of
~200 pF may be required.
CD – Compensation Device
Adaptive Loop control is configured by connecting an external resistor
between the CD port and SG. Selection of an appropriate resistor value
(see Equation 2 on Page 9 and Table 1 on Page 2) configures the PRM
to compensate for voltage drops in the equivalent output resistance of
the VTM and the PRM-VTM distribution bus. If no resistor is connected
to CD, the PRM will be in Local Loop mode and will regulate the
+Out / –Out voltage to a fixed value.
V•I Chip Regulator
P048F048T24AL
Rev. 3.9
Page 8 of 14
End of Life
Application Information
V•I Chip Regulator
Regulator
0.01 µF
VC
PC
TM
IL
NC
PR
10 kΩ
PRM™-AL
+In
Current Multiplier
VH
SC
SG
OS
NC
CD
VF =
ROS
(IL•Ro)
VL
+
K
K
L
O
A
D
+Out
RCD
TM
VC
PC
0.4 µH
+Out
VIN
10 Ω
–In
+Out
+In
– In
–Out
VTM™
– Out
K
Ro
– Out
Figure 16 — Adaptive Loop compensation with output voltage trimming and soft start using the SC port.
Output Voltage Setting with Adaptive Loop
Output Voltage Trimming (optional)
The equations for calculating ROS and RCD to set a VTM output
voltage are:
After setting the output voltage from the procedure above the output
may be margined down (26 Vf min) by a resistor from SC-SG using this
formula:
93100
ROS =
( VL • 0.8395 ) – 1
K
RdΩ =
(1)
10000 Vfd
Vfs - Vfd
Where Vfd is the desired factorized bus and Vfs is the set factorized bus.
91238
(2)
ROS
A low voltage source can be applied to the SC port to margin the load
voltage in proportion to the SC reference voltage.
VL = Desired load voltage
An external capacitor can be added to the SC port as shown in Figure 16
to control the output voltage slew rate for soft start.
RCD =
+1
VOUT = VTM output voltage
K = VTM transformation ratio
(available from appropriate VTM data sheet)
Vf = PRM output voltage, the Factorized Bus (see Figure 16)
RO = VTM output resistance
(available from appropriate VTM data sheet)
IL = Load Current
(actual current delivered to the load)
Nominal Vout
Range (Vdc)
0.8 ↔
1.6
1.1 ↔
2.2
1.6 ↔
3.3
2.2 ↔
4.4
3.3 ↔
6.6
4.3 ↔
8.8
6.5 ↔ 13.4
8.7 ↔ 17.9
13.0 ↔ 26.9
17.4 ↔ 36.0
26.0 ↔ 54.0
VTM
K Factor
1/32
1/24
1/16
1/12
1/8
1/6
1/4
1/3
1/2
2/3
1
Table 2 — 048 input series VTM K factor selection guide
vicorpower.com
800-735-6200
V•I Chip Regulator
P048F048T24AL
Rev. 3.9
Page 9 of 14
End of Life
Application Information (continued)
V•I Chip Regulator
OVP – Overvoltage Protection
Adjusting Current Limit
The output Overvoltage Protection set point of the P048F048T24AL is
factory preset for 56 V. If this threshold is exceeded the output shuts
down and a restart sequence is initiated, also indicated by PC pulsing.
If the condition that causes OVP is still present, the unit will again shut
down. This cycle will be repeated until the fault condition is removed.
The OVP set point may be set at the factory to meet unique high
voltage requirements.
The current limit can be lowered by placing an external resistor
between the IL and SG ports (see Figure 18 for resistor values). With
the IL port open-circuit, the current limit is preset to be within the
range specified in the output specifications table on Page 4.
DC CURRENT LIMIT
100
As shown in Figure 17, the P048F048T24AL is rated to deliver 5 A
maximum, when it is delivering an output voltage in the range from
26 V to 48 V, and 240 W, maximum, when delivering an output
voltage in the range from 48 V to 55 V. When configuring a PRM for
use with a specific VTM, refer to the appropriate VTM data sheet. The
VTM input power can be calculated by dividing the VTM output power
by the VTM efficiency (available from the VTM data sheet). The input
power required by the VTM should not exceed the output power rating
of the PRM.
Rext Value (kΩ)
PRM Output Power Versus VTM Output Power
10
1
0
1
2
3
4
5
6
Desired PRM Output Current Limit (A)
5.1
Figure 18 — Calculated external resistor value for adjusting current limit,
actual value may vary.
5.0
Current (A)
4.9
4.8
Input Fuse Recommendations
4.7
Safe Operating Area
4.6
A fuse should be incorporated at the input to the PRM, in series with
the +In port. A fast acting fuse, NANO2 FUSE 451/453 Series 10 A
125 V, or equivalent, may be required to meet certain safety agency
Conditions of Acceptability. Always ascertain and observe the safety,
regulatory, or other agency specifications that apply to your specific
application.
4.5
4.4
4.3
0
~
~
20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60
Factorized Bus Voltage (Vf)
Product Safety Considerations
Figure 17 — P048F048T24AL rating based on Factorized Bus voltage
The Factorized Bus voltage should not exceed an absolute limit of
55 V, including steady state, ripple and transient conditions. Exceeding
this limit may cause the internal OVP set point to be exceeded.
If the input of the PRM is connected to SELV or ELV circuits, the output
of the PRM can be considered SELV or ELV respectively.
If the input of the PRM is connected to a centralized DC power system
where the working or float voltage is above SELV, but less than or
equal to 75 V, the input and output voltage of the PRM should be
classified as a TNV-2 circuit and spaced 1.3 mm from SELV circuitry or
accessible conductive parts according to the requirements of
UL60950-1, CSA 22.2 60950-1, EN60950-1, and IEC60950-1.
Parallel Considerations
The PR port is used to connect two PRMs in parallel to form a higher
power array. When configuring arrays, PR port interconnection
terminating impedance is 10 k to SG. See note Page 8 and refer to
Application Note AN002. Additionally one PRM should be designated
as the master while all other PRMs are set as slaves by shorting their
SC pin to SG. The PC pins must be directly connected (no diodes) to
assure a uniform start up sequence. Consult Vicor applications
engineering for applications requiring more than two PRMs.
Applications Assistance
Please contact Vicor Applications Engineering for assistance,
1-800-927-9474, or email at apps@vicorpower.com.
vicorpower.com
800-735-6200
V•I Chip Regulator
P048F048T24AL
Rev. 3.9
Page 10 of 14
End of Life
Mechanical Drawings
V•I Chip Regulator
NOTES:
mm
1. DIMENSIONS ARE inch .
2. UNLESS OTHERWISE SPECIFIED, TOLERANCES ARE:
.X / [.XX] = +/-0.25 / [.01]; .XX / [.XXX] = +/-0.13 / [.005]
3. PRODUCT MARKING ON TOP SURFACE
DXF and PDF files are available on vicorpower.com
Figure 19 — PRM J-Lead mechanical outline
RECOMMENDED LAND PATTERN
( COMPONENT SIDE SHOWN )
NOTES:
mm
1. DIMENSIONS ARE inch .
2. UNLESS OTHERWISE SPECIFIED, TOLERANCES ARE:
.X / [.XX] = +/-0.25 / [.01]; .XX / [.XXX] = +/-0.13 / [.005]
3. PRODUCT MARKING ON TOP SURFACE
DXF and PDF files are available on vicorpower.com
Figure 20 — PRM J-Lead PCB layout information
vicorpower.com
800-735-6200
V•I Chip Regulator
P048F048T24AL
Rev. 3.9
Page 11 of 14
Not Recommended for New Designs
Mechanical Drawings (continued)
V•I Chip Regulator
NOTES:
(mm)
1. DIMENSIONS ARE inch .
2. UNLESS OTHERWISE SPECIFIED TOLERANCES ARE:
X.X [X.XX] = ±0.25 [0.01]; X.XX [X.XXX] = ±0.13 [0.005]
3. RoHS COMPLIANT PER CST-0001 LATEST REVISION
DXF and PDF files are available on vicorpower.com
Figure 21 — PRM Through-hole mechanical outline
NOTES:
(mm)
1. DIMENSIONS ARE inch .
2. UNLESS OTHERWISE SPECIFIED TOLERANCES ARE:
X.X [X.XX] = ±0.25 [0.01]; X.XX [X.XXX] = ±0.13 [0.005]
3. RoHS COMPLIANT PER CST-0001 LATEST REVISION
DXF and PDF files are available on vicorpower.com
Figure 22 — PRM Through-hole PCB layout information
vicorpower.com
800-735-6200
V•I Chip Regulator
P048F048T24AL
Rev. 3.9
Page 12 of 14
Not Recommended for New Designs
Configuration Options
V•I Chip Regulator
RECOMMENDED LAND PATTERN
(NO GROUNDING CLIPS)
TOP SIDE SHOWN
NOTES:
1. MAINTAIN 3.50 [0.138] DIA. KEEP-OUT ZONE
FREE OF COPPER, ALL PCB LAYERS.
2. (A) MINIMUM RECOMMENDED PITCH IS 39.50 [1.555],
THIS PROVIDES 7.00 [0.275] COMPONENT
EDGE-TO-EDGE SPACING, AND 0.50 [0.020]
CLEARANCE BETWEEN VICOR HEAT SINKS.
(B) MINIMUM RECOMMENDED PITCH IS 41.00 [1.614],
THIS PROVIDES 8.50 [0.334] COMPONENT
EDGE-TO-EDGE SPACING, AND 2.00 [0.079]
CLEARANCE BETWEEN VICOR HEAT SINKS.
3. V•I CHIP™ MODULE LAND PATTERN SHOWN FOR REFERENCE ONLY;
ACTUAL LAND PATTERN MAY DIFFER.
DIMENSIONS FROM EDGES OF LAND PATTERN
TO PUSH-PIN HOLES WILL BE THE SAME FOR
ALL FULL SIZE V•ICHIP PRODUCTS.
RECOMMENDED LAND PATTERN
(With GROUNDING CLIPS)
TOP SIDE SHOWN
4. RoHS COMPLIANT PER CST-0001 LATEST REVISION.
5. UNLESS OTHERWISE SPECIFIED:
DIMENSIONS ARE MM [INCH].
TOLERANCES ARE:
X.X [X.XX] = ±0.3 [0.01]
X.XX [X.XXX] = ±0.13 [0.005]
6. PLATED THROUGH HOLES FOR GROUNDING CLIPS (33855)
SHOWN FOR REFERENCE. HEAT SINK ORIENTATION AND
DEVICE PITCH WILL DICTATE FINAL GROUNDING SOLUTION.
Figure 23 — Hole location for push pin heat sink relative to V•I Chip
vicorpower.com
800-735-6200
V•I Chip Regulator
P048F048T24AL
Rev. 3.9
Page 13 of 14
Not Recommended for New Designs
Vicor’s comprehensive line of power solutions includes high density AC-DC and DC-DC modules and
accessory components, fully configurable AC-DC and DC-DC power supplies, and complete custom
power systems.
Information furnished by Vicor is believed to be accurate and reliable. However, no responsibility is assumed by Vicor for its use. Vicor makes no
representations or warranties with respect to the accuracy or completeness of the contents of this publication. Vicor reserves the right to make
changes to any products, specifications, and product descriptions at any time without notice. Information published by Vicor has been checked
and is believed to be accurate at the time it was printed; however, Vicor assumes no responsibility for inaccuracies. Testing and other quality
controls are used to the extent Vicor deems necessary to support Vicor’s product warranty. Except where mandated by government requirements,
testing of all parameters of each product is not necessarily performed.
Specifications are subject to change without notice.
Vicor’s Standard Terms and Conditions
All sales are subject to Vicor’s Standard Terms and Conditions of Sale, which are available on Vicor’s webpage or upon request.
Product Warranty
In Vicor’s standard terms and conditions of sale, Vicor warrants that its products are free from non-conformity to its Standard Specifications (the
“Express Limited Warranty”). This warranty is extended only to the original Buyer for the period expiring two (2) years after the date of shipment
and is not transferable.
UNLESS OTHERWISE EXPRESSLY STATED IN A WRITTEN SALES AGREEMENT SIGNED BY A DULY AUTHORIZED VICOR SIGNATORY, VICOR
DISCLAIMS ALL REPRESENTATIONS, LIABILITIES, AND WARRANTIES OF ANY KIND (WHETHER ARISING BY IMPLICATION OR BY OPERATION OF
LAW) WITH RESPECT TO THE PRODUCTS, INCLUDING, WITHOUT LIMITATION, ANY WARRANTIES OR REPRESENTATIONS AS TO MERCHANTABILITY,
FITNESS FOR PARTICULAR PURPOSE, INFRINGEMENT OF ANY PATENT, COPYRIGHT, OR OTHER INTELLECTUAL PROPERTY RIGHT, OR ANY OTHER
MATTER.
This warranty does not extend to products subjected to misuse, accident, or improper application, maintenance, or storage. Vicor shall not be
liable for collateral or consequential damage. Vicor disclaims any and all liability arising out of the application or use of any product or circuit and
assumes no liability for applications assistance or buyer product design. Buyers are responsible for their products and applications using Vicor
products and components. Prior to using or distributing any products that include Vicor components, buyers should provide adequate design,
testing and operating safeguards.
Vicor will repair or replace defective products in accordance with its own best judgment. For service under this warranty, the buyer must contact
Vicor to obtain a Return Material Authorization (RMA) number and shipping instructions. Products returned without prior authorization will be
returned to the buyer. The buyer will pay all charges incurred in returning the product to the factory. Vicor will pay all reshipment charges if the
product was defective within the terms of this warranty.
Life Support Policy
VICOR’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS
PRIOR WRITTEN APPROVAL OF THE CHIEF EXECUTIVE OFFICER AND GENERAL COUNSEL OF VICOR CORPORATION. As used herein, life support
devices or systems are devices which (a) are intended for surgical implant into the body, or (b) support or sustain life and whose failure to perform
when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in a significant injury to
the user. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause
the failure of the life support device or system or to affect its safety or effectiveness. Per Vicor Terms and Conditions of Sale, the user of Vicor
products and components in life support applications assumes all risks of such use and indemnifies Vicor against all liability and damages.
Intellectual Property Notice
Vicor and its subsidiaries own Intellectual Property (including issued U.S. and Foreign Patents and pending patent applications) relating to the
products described in this data sheet. No license, whether express, implied, or arising by estoppel or otherwise, to any intellectual property rights
is granted by this document. Interested parties should contact Vicor's Intellectual Property Department.
The products described on this data sheet are protected by the following U.S. Patents Numbers:
5,945,130; 6,403,009; 6,710,257; 6,788,033; 6,940,013; 6,969,909; 7,038,917; 7,154,250; 7,166,898; 7,187,263; 7,202,646; 7,361,844;
7,368,957; RE40,072; 7,361,844; 7,368,957; RE40,072; D496,906; D506,438; D509,472; and for use under 6,975,098 and 6,984,965.
Vicor Corporation
25 Frontage Road
Andover, MA, USA 01810
Tel: 800-735-6200
Fax: 978-475-6715
email
Customer Service: custserv@vicorpower.com
Technical Support: apps@vicorpower.com
vicorpower.com
800-735-6200
V•I Chip Regulator
P048F048T24AL
Rev. 3.9
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