V048F040T050.pdf 데이터시트 (총 13 페이지) - 파일 다운로드 V048F040T050 데이타시트 다운로드

No Preview Available !

www.DataSheet4U.com
VTM
PRELIMINARY
V048F040T050
V•I ChipTM – VTM
Voltage Transformation Module
• 48 V to 4 V V•I Chip Converter
• 50 A (75 A for 1 ms)
• High density – 182 A/in3
• Small footprint – 45 A/in2
• Low weight – 0.5 oz (14 g)
• Pick & Place / SMD
• 125°C operation
• 1 µs transient response
• 3.5 million hours MTBF
• Typical efficiency 94%
• No output filtering required
Vf = 26 - 55 V
VOUT = 2.17 - 4.58 V
IOUT = 50 A
K = 1/12
ROUT = 3.9 mΩ max
©
Actual size
Product Description
The V048F040T050 V•I Chip Voltage Transformation
Module (VTM) excels at speed, density and efficiency to
meet the demands of advanced power applications
while providing isolation from input to output. It
achieves a response time of less than 1 µs and delivers
up to 50 A in a volume of less than 0.274 in3 with
unprecedented efficiency. It may be paralleled to deliver
higher power levels at an output voltage settable from
2.17 to 4.58 Vdc.
The VTM V048F040T050’s nominal output voltage is 4
Vdc from a 48 Vdc input Factorized Bus, Vf, and is
controllable from 2.17 to 4.58 Vdc at no load, and from
1.98 to 4.40 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 = 1/12, for applications requiring an isolated output
voltage with high efficiency. Closing the loop back to an
input Pre-Regulation Module (PRM) or DC-DC converter
enables tight load regulation.
The 4 V VTM achieves a current density of 182 A/in3 in
a V•I Chip package compatible with standard pick-and-
place and surface mount assembly processes. The VTM’s
fast dynamic response and low noise eliminate the
need for bulk capacitance at the load, substantially
increasing system density while improving reliability
and decreasing cost.
Absolute Maximum Ratings
Parameter
+In to -In
+In to -In
PC to -In
VC to -In
+Out to -Out
Isolation voltage
Output current
Peak output current
Output power
Peak output power
Case temperature
Values
-1.0 to 60
100
-0.3 to 7.0
-0.3 to 19.0
-0.5 to 12
2,250
50
75
220
330
208
Operating junction temperature(1)
-40 to 125
-55 to 125
Storage temperature
-40 to 150
-65 to 150
Unit
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
A
A
W
W
°C
°C
°C
°C
°C
Notes
For 100 ms
Input to Output
Continuous
For 1 ms
Continuous
For 1 ms
During reflow
T - Grade
M - Grade
T - Grade
M - Grade
Note:
(1) The referenced junction is defined as the semiconductor having the highest temperature.
This temperature is monitored by a shutdown comparator.
Part Numbering
V 048
Voltage
Transformation
Module
Input Voltage
Designator
F
Configuration Options
F = On-board (Figure 10)
040
Output Voltage
Designator
(=VOUT x10)
T
050
Output Current
Designator
(=IOUT)
Product Grade Temperatures (°C)
Grade Storage Operating
T -40 to150 -40 to125
M -65 to150 -55 to125
vicorpower.com 800-735-6200
V•I Chip Voltage Transformation Module
V048F040T050
Rev. 1.1
Page 1 of 13

No Preview Available !

Electrical Specifications
PRELIMINARY
V•I Chip Voltage Transformation Module
Input Specs (Conditions are at 48 Vin, full load, and 25°C ambient unless otherwise specified)
Parameter
Input voltage range
Input dV/dt
Input overvoltage turn-on
Input overvoltage turn-off
Input current
Input reflected ripple current
No load power dissipation
Internal input capacitance
Internal input inductance
Min Typ Max Unit
Note
26 48 55 Vdc Operable down to zero V with VC voltage applied
1 V/µs
55.0 Vdc
59.0 Vdc
4.6 Adc
114
mA p-p
Using test circuit in Figure 14; See Figure 1
4.10 5.10
W
1.9 µF
5 nH
Output Specs (Conditions are at 48 Vin, full load, and 25°C ambient unless otherwise specified)
Parameter
Output voltage
Rated DC current
Peak repetitive current
Short circuit protection set point
Current share accuracy
Efficiency
Half load
Full load
Internal output inductance
Internal output capacitance
Output overvoltage setpoint
Output ripple voltage
No external bypass
47 µF bypass capacitor
Effective switching frequency
Line regulation
K
Load regulation
ROUT
Transient response
Voltage overshoot
Response time
Recovery time
Min
2.17
1.98
0
59.8
93.4
93.1
4.6
2.40
0.0825
Typ Max
4.58
4.40
50
75
5 10
94.8
94.4
1.1
255
216
8
2.55
1/12
3.3
110
200
1
290
2.70
0.0842
3.9
Unit
Vdc
Vdc
Adc
A
Adc
%
%
%
nH
µF
Vdc
mV
mV
MHz
mΩ
mV
ns
µs
Note
No load
Full load
26 - 55 VIN
Max pulse width 1ms, max duty cycle 10%,
baseline power 50%
Module will shut down
See Parallel Operation on Page 8
See Figure 3
See Figure 3
Effective value
Module will shut down
See Figures 2 and 5
See Figure 6
Fixed, 1.3 MHz per phase
VOUT = K•VIN at no load
See Figure 17
50 A load step with 100 µF CIN; See Figures 7 and 8
See Figures 7 and 8
See Figures 7 and 8
vicorpower.com 800-735-6200
V•I Chip Voltage Transformation Module
V048F040T050
Rev. 1.1
Page 2 of 13

No Preview Available !

Electrical Specifications (continued)
Waveforms
PRELIMINARY
Figure 1— Input reflected ripple current at full load and 48 Vf.
220
200
180
160
140
120
100
80
0
Ripple vs. Output Current
5 10 15 20 25 30 35 40 45 50
Output Current (A)
Figure 2— Output voltage ripple vs. output current at 48 Vf with no POL
bypass capacitance.
Efficiency vs. Output Current
96
94
92
90
88
86
84
82
0
5 10 15 20 25 30 35 40 45 50
Output Current (A)
Figure 3— Efficiency vs. output current.
Power Dissipation
14
12
10
8
6
4
2
0 5 10 15 20 25 30 35 40 45 50
Output Current (A)
Figure 4—Power dissipation vs. output current.
Figure 5— Output voltage ripple at full load and 48 Vf; with no POL bypass
capacitance.
Figure 6—Output voltage ripple at full load and 48 Vf with 47 µF ceramic
POL bypass capacitance and 20 nH distribution inductance.
vicorpower.com 800-735-6200
V•I Chip Voltage Transformation Module
V048F040T050
Rev. 1.1
Page 3 of 13

No Preview Available !

Electrical Specifications (continued)
PRELIMINARY
V•I Chip Voltage Transformation Module
Figure 7— 0-50 A load step with 100 µF input capacitance and no output
capacitance.
Figure 8— 50-0 A load step with 100 µF input capacitance and no output
capacitance.
General
Parameter
MTBF
MIL-HDBK-217F
Isolation specifications
Voltage
Capacitance
Resistance
Agency approvals (pending)
Mechanical parameters
Weight
Dimensions
Length
Width
Height
Min Typ Max
3.5
2,250
10
3,000
cTÜVus
CE Mark
0.5 / 14.0
1.26 / 32
0.87 / 22
0.25 / 6,2
Unit
Mhrs
Vdc
pF
MΩ
oz / g
in / mm
in / mm
in / mm
Note
25°C, GB
Input to Output
Input to Output
Input to Output
UL/CSA 60950, EN 60950
Low voltage directive
See Mechanical Drawing, Figures 12
Auxiliary Pins (Conditions are at 48 Vin, full load, and 25°C ambient unless otherwise specified)
Parameter
Primary Control (PC)
DC voltage
Module disable voltage
Module enable voltage
Current limit
Disable delay time
VTM Control (VC)
External boost voltage
External boost duration
Min Typ Max Unit
4.8 5.0 5.2 Vdc
2.4 2.5
Vdc
2.5 2.6 Vdc
2.4 2.5 2.9 mA
30 µs
12 14 19 Vdc
10 ms
Note
VC voltage must be applied when module is enabled using PC
Source only
PC low to Vout low
Required for VTM start up without PRM
Vin > 26 Vdc. VC must be applied continuously
if Vin < 26 Vdc.
vicorpower.com 800-735-6200
V•I Chip Voltage Transformation Module
V048F040T050
Rev. 1.1
Page 4 of 13

No Preview Available !

Pin/Control Functions
PRELIMINARY
+IN/-IN DC Voltage Ports
The VTM input should not exceed the maximum specified. Be aware of
this limit in applications where the VTM is being driven above its
nominal output voltage. If less than 26 Vdc is present at the +In and -In
ports, a continuous VC voltage must be applied for the VTM to process
power. Otherwise VC voltage need only be applied for 10 ms after the
voltage at the +In and -In ports has reached or exceeded 26 Vdc. If the
input voltage exceeds the overvoltage turn-off, 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.
TM – For Factory Use Only
VC – VTM Control
The VC port is multiplexed. It receives the initial VCC voltage from an
upstream PRM, synchronizing the output rise of the VTM with the
output rise of the PRM. Additionally, the VC port provides feedback to
the PRM to compensate for the VTM output resistance. In typical
applications using VTMs powered from PRMs, the PRM’s VC port
should be connected to the VTM VC port.
In applications where a VTM is being used without a PRM, 14 V must
be supplied to the VC port for as long as the input voltage is below 26 V
and for 10 ms after the input voltage has reached or exceeded 26 V. The
VTM is not designed for extended operation below 26 V. The VC port
should only be used to provide VCC voltage to the VTM during startup.
+Out
-Out
+Out
-Out
43
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
T
21
A
B
C
D
E
+In
TM
H
J VC
K
PC
L
M
N
P -In
R
T
Bottom View
Signal Name
+In
–In
TM
VC
PC
+Out
–Out
Pin Designation
A1-E1, A2-E2
L1-T1, L2-T2
H1, H2
J1, J2
K1, K2
A3-D3, A4-D4,
J3-M3, J4-M4
E3-H3, E4-H4,
N3-T3, N4-T4
PC – Primary Control
The Primary Control (PC) port is a multifunction port for controlling the
VTM as follows:
Disable – If PC is left floating, the VTM output is enabled. To
disable the output, the PC port must be pulled lower than 2.4 V,
referenced to -In. Optocouplers, open collector transistors or relays
can be used to control the PC port. Once disabled, 14 V must be
re-applied to the VC port to restart the VTM.
Primary Auxiliary Supply – The PC port can source up to 2.4 mA
at 5 Vdc.
Figure 9—VTM pin configuration
+OUT/-OUT DC Voltage Output Ports
The output and output return are through two sets of contact
locations. The respective +Out and –Out groups must be connected in
parallel with as low an interconnect resistance as possible. Within the
specified input voltage range, the Level 1 DC behavioral model shown
in Figure 17 defines the output voltage of the VTM. The current source
capability of the VTM is shown in the specification table.
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.
vicorpower.com 800-735-6200
V•I Chip Voltage Transformation Module
V048F040T050
Rev. 1.1
Page 5 of 13