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V048K020T080 Schematic ( PDF Datasheet ) - Vicor Corporation

Teilenummer V048K020T080
Beschreibung (V048x020T080) Voltage Transformation Module
Hersteller Vicor Corporation
Logo Vicor Corporation Logo 




Gesamt 15 Seiten
V048K020T080 Datasheet, Funktion
www.DataSheet4U.com
VTM
V•I ChipTM – VTM
Voltage Transformation Module
V048K020T080
K indicates BGA configuration. For other
mounting options see Part Numbering below.
• 48 V to 2 V V•I Chip Converter
• 80 A (120 A for 1 ms)
• High density – 320 A/in3
• 125°C operation
• 1 µs transient response
• >3.5 million hours MTBF
Vf = 26 - 55 V
VOUT = 1.1 - 2.3 V
IOUT = 80 A
K = 1/24
ROUT = 1.5 mmax
©
• Small footprint – 75 A/in2
• Typical efficiency 94% at 2 V/50 A
• Low weight – 0.5 oz (14 g)
• No output filtering required
• Pick & Place / SMD
• BGA or J-Lead packages
Actual size
Product Description
Absolute Maximum Ratings
The V048K020T080 VI Chip Voltage Transformation
Module (VTM) breaks records for speed, density and
Parameter
Values
Unit
Notes
efficiency to meet the demands of advanced DSP,
FPGA, ASIC, processor cores and microprocessor
applications at the point of load (POL) while providing
+In to -In
+In to -In
-1.0 to 60.0
Vdc
100 Vdc For 100 ms
isolation from input to output. It achieves a response
PC to -In
-0.3 to 7.0
Vdc
time of less than 1 µs and delivers up to 80 A in a
TM to -In
-0.3 to 7.0
Vdc
volume of less than 0.25 in3 while providing low output
voltages with unprecedented efficiency. It may be
paralleled to deliver hundreds of amps at an output
voltage settable from 1.1 to 2.3 Vdc.
P R E L I M I N A RYThe VTM V048K020T080’s nominal output voltage is
2 Vdc from a 48 Vdc input factorized bus, Vf, and is
controllable from 1.1 to 2.3 Vdc at no load, and from
1.1 to 2.2 Vdc at full load, over a Vf input range of 26
to 55 Vdc. It can be operated either open- or closed-loop
depending on the output regulation needs of the
application. Operating open-loop, the output voltage
tracks its Vf input voltage with a transformation ratio,
K = 1/24, and an output resistance, ROUT = 1.3 milliohm, to
enable applications requiring a programmable low
output voltage at high current and high efficiency.
VC to -In
-0.3 to 19.0
Vdc
+Out to -Out
-0.1 to 4.0
Vdc
Isolation voltage
Operating junction temperature
2,250
-40 to 125
Vdc Input to Output
°C See Note
Output current
80 A Continuous
Peak output current
Case temperature during reflow
120
208
A For 1 ms
°C
Storage temperature
-40 to 150
°C
Output power
Peak output power
174 W Continuous
261 W For 1 ms
Note: The referenced junction is defined as the semiconductor having the highest temperature.
This temperature is monitored by the temperature monitor (TM) signal and by a shutdown comparator.
Closing the loop back to an input Pre-Regulation
Module (PRM) or DC-DC converter can compensate
for ROUT.
Part Numbering
The 2 V VTM achieves break-through current density of
320 A/in3 in a VI Chip package compatible with
standard pick-and-place and surface mount assembly
processes. The VI Chip BGA package supports in-board
mounting with a low profile of 0.16" (4 mm) over the
board. A J-lead package option supports on-board
surface mounting with a profile of only 0.25" (6 mm)
over the board. The VTM’s fast dynamic response and
low noise eliminate the need for bulk capacitance at the
load, substantially increasing the POL density while
improving reliability and decreasing cost.
V 048
Voltage
Transformation
Module
Input Voltage
Designator
K
Configuration Options
F = On-board (Fig.15)
K = In-board (Fig.14)
020 T 080
Output Voltage
Designator
(=VOUT x10)
Output Current
Designator
(=IOUT)
Product Grade Temperatures (°C)
Grade Storage Operating
T -40 to150 -40 to125
Vicor Corporation
Tel: 800-735-6200
vicorpower.com
V•I Chip Voltage Transformation Module V048K020T080 Rev. 1.2
Page 1 of 15






V048K020T080 Datasheet, Funktion
Pin/Control Functions
PRELIMINARY
+IN/-IN DC VOLTAGE PORTS
The VTM input should not exceed the high end of the range
specified. Be aware of this limit in applications where the VTM
is being driven above its nominal output voltage. A 14 V source
must be applied to the VC pin and voltage must be present at
the +In and -In ports in order for the VTM to process power. If
the input voltage exceeds the over voltage lock-out, the VTM
will shutdown. The VTM does not have internal input reverse
polarity protection. Adding a properly sized diode in series with
the positive input or a fused reverse-shunt diode will provide
reverse polarity protection.
VC – VTM Control
The VC port is multiplexed. It receives the initial Vcc voltage
from an upstream PRM, synchronizing the output rise of the
+Out
-Out
+Out
-Out
43
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
T
U
V
W
Y
AA
AB
AC
AD
AE
AF
AG
AH
AJ
AK
AL
21
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
T
U
V
W
Y
AA
AB
AC
AD
AE
AF
AG
AH
AJ
AK
AL
+In
Temp.
Monitor
VTM Control
Primary
Control
-In
VTM with the output rise of the PRM. Additionally, the VC
port provides feedback to the PRM to compensate for the VTM
Bottom View
output resistance. In typical applications using VTMs powered
from PRMs, the PRM’s VC port should be connected to the
Figure 9—VTM BGA configuration
VTM VC port.
Signal
BGA
In applications where a VTM is being used without a PRM,
14 V must be supplied to the VC port for approximately 10 ms in
order for the VTM to startup. The VTM can be operated at
P R E L I M I N A RYinput voltages below 26 V as long as the VC voltage is applied.
PC – Primary Control
The Primary Control (PC) pin is a multifunction pin for
controlling the VTM as follows:
Disable – If the PC is left floating, the VTM output
is enabled. To disable the output, the PC pin must be pulled
lower than 2.4 V, referenced to -In. Optocouplers, open
collector transistors or relays can be used to control the PC
Name
+In
–In
TM
VC
PC
+Out
–Out
Designation
A1-L1, A2-L2
AA1-AL1, AA2-AL2
P1, P2
T1, T2
V1, V2
A3-G3, A4-G4,
U3-AC3, U4-AC4
J3-R3, J4-R4,
AE3-AL3, AE4-AL4
+OUT/-OUT DC Voltage Output Ports
The output (+OUT) and output return (-OUT) are through two
pin. Once disabled, 14 V must be re-applied to the VC pin
sets of contact locations. The respective +OUT and –OUT
in order to restart the VTM
groups must be connected in parallel with as low an
Primary Auxiliary Supply – The PC port can source up to
2.4 mA at 5 Vdc.
interconnect resistance as possible. Within the specified input
voltage range, the Level 1 DC behavioral model shown in
Figure 19 defines the output voltage of the VTM. The current
TM – Temperature Monitor
source capability of the VTM is shown in the specification table.
The Temperature Monitor (TM) provides a linear output
proportional to the internal temperature of the VTM. At 300ºK
(+27ºC) the TM output is 3.0 V referenced to -In and varies
10 mV/ºC. TM accuracy is +/-5ºC. This feature is useful for
validating the thermal design of the system as well as
monitoring the VTM temperature in the final application.
To take full advantage of the VTM, the user should note the
low output impedance of the device. The low output impedance
provides fast transient response without the need for bulk POL
capacitance. Limited-life electrolytic capacitors required with
conventional converters can be reduced or even eliminated,
saving cost and valuable board real estate.
Vicor Corporation
Tel: 800-735-6200
vicorpower.com
V•I Chip Voltage Transformation Module V048K020T080 Rev. 1.2
Page 6 of 15

6 Page









V048K020T080 pdf, datenblatt
Application Note (continued)
In figures 21 – 24;
K = VTM Transformation Ratio
Ro = VTM Output Resistance
FPA Adaptive Loop
Vf = PRM Output (Factorized Bus Voltage)
Vo = VTM Output
VL = Desired Load Voltage
VC VH
PC SC
TM SG
IL OS
NC NC
PR CD
PRM-AL
+In +Out
Vin
–In –Out
Rs Factorized
Power Bus
Vf =
VL
K
+
(Io•Ro)
K
Vo = VL ± 1.0%
+Out
+In
-Out
TM
VC
VTM
PC
+Out
K
Ro-In
-Out
L
O
A
D
Figure 21 — The PRM controls the factorized bus voltage, Vf, in proportion to output current to compensate for the output resistance,
Ro, of the VTM. The VTM output voltage is typically within 1% of the desired load voltage (VL) over all line and load conditions.
FPA Non-isolated Remote Loop
VC VH
PC SC
TM SG
IL OS
NC NC
PR PRM-AL CD
+In +Out
Vin
–In –Out
Remote
Loop
Control
Factorized
Power Bus
Vf = f (Vs)
+Out
+In
-Out
TM
VC
VTM
PC
+Out
K
Ro-In
-Out
Vo = VL ± 0.4%
+S L
O
A
–S D
Figure 22 — An external error amplifier or Point-of-Load IC (POLIC) senses the load voltage and controls the PRM output – the
factorized bus – as a function of output current, compensating for the output resistance of the VTM and for distribution resistance.
FPA Isolated Remote Loop
VC VS
PC FB
TM FG
IL NC
NC NC
PR NC
PRM-IF
+In +Out
Vin
–In
–Out
Factorized
Power Bus
Vf = f (Vs)
Remote
Loop
Control
+Out
+In
-Out
TM
VC
VTM
PC
+Out
K
Ro-In
-Out
Vo = VL ± 0.4%
+S L
O
A
–S D
Figure 23—An external error amplifier or Point-of-Load IC (POLIC) senses the load voltage and controls the PRM output – the
factorized bus – as a function of output current, compensating for the output resistance of the VTM and for distribution
resistance. The factorized bus voltage (Vf) increases in proportion to load current. The remote feed back loop is isolated within
the PRM to support galvanic isolation and hipot compliance at the system level.
Vicor Corporation
Tel: 800-735-6200
vicorpower.com
V•I Chip Voltage Transformation Module V048K020T080 Rev. 1.2 Page 12 of 15

12 Page





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