概述
数据手册V375A12C500A 概述
48Vin / 12Vout / 500Watts DC-DC Converter Module 48VIN / 12VOUT / 500Watts DC -DC转换器模块
V375A12C500A 数据手册
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PDF下载48Vin / 12Vout / 500Watts
45
DC-DC Converter Module
*
Model Number V48A12C500A
Features
• DC input range: 36 - 75V
• Input surge withstand: 100V for 100ms
• DC output: 12V
• Programmable output: 10 to 110%
• Regulation: ±0.2% no load to full load
• Efficiency: 85.7%
• Maximum operating temperature:
100°C at full load
• Power density: 99W/cubic inch
• Height above board: 0.43 in. (10,9 mm)
• Parallelable, with N+M fault tolerance
• Low noise ZCS/ZVS architecture
Shown actual size:
4.6 x 2.2 x 0.5 in
117 x 56 x 12,7 mm
Typical Applications: telecommunications
and distributed power systems
Product Overview
This DC-DC converter module uses
2nd Generation power processing, control
and packaging technologies to provide the
performance, flexibility and cost effectiveness
expected of a mature power component.
For example, a plated-cavity core transformer
couples widely separated primary and
secondary windings, resulting in low in-to-
out parasitic capacitance and noise.
High frequency ZCS/ZVS switching,
advanced power semiconductor packaging
and thermal management provide high
power density with low temperature
gradients. Extensive use of silicon
integration results in 1/3 the part count
of a 1st Generation converter.
Absolute Maximum Ratings
Parameter
Rating
-0.5 to +75.0
100
Unit
Vdc
Notes
+In to –In voltage
+In to –In voltage
Vdc
<100ms
PC to –In voltage
-0.5 to +7.0
-0.5 to +7.0
-0.5 to +16.0
-0.5 to +16.0
1.0
Vdc
PR to –In voltage
Vdc
+Out to –Out voltage
+Sense to –Out voltage
–Sense to –Out voltage
SC to –Out voltage
Vdc
Vdc
Vdc
-0.5 to +1.5
3000
Vdc
Isolation voltage (in to out)
Isolation voltage (in to base)
Isolation voltage (out to base)
Storage temperature (C–Grade)
Operating temperature (C–Grade)
Pin soldering temperature
Pin soldering temperature
Mounting torque
Vrms
Vrms
Vrms
°C
1550
500
*
Part Numbering
V 48 A 12C 500 A
See part numbering chart on this
page for other product grades.
-40 to +125
-20 to +100
500 (260)
750 (390)
5 (0.57)
°C
Baseplate
Output
Voltage
Pin
Style
Output
Power
Input Voltage
°F (°C)
°F (°C)
in-lbs (N-m)
<5 sec; wave solder
<7 sec; hand solder
6 each, # 4-40 or M3
24=24Vin
48=48Vin
300=300Vin
375=375Vin
Base-
plate
Product Grade Temperatures (°C)
Grade
Storage
Operating
20 to +100
40 to +100
40 to +100
55 to +100
C
T
H
M
=
=
=
=
-
-
-
-
40 to +125
40 to +125
55 to +125
65 to +125
-
-
-
-
A = Maxi
B = Mini
C = Micro
Thermal Resistance and Capacity
For pin styles see page 6. Slotted baseplate
(style 1) requires no designator. For
threaded baseplate add a “2” to the end of
the part number. For thru-hole, add a “3”.
See page 7 for dimensions.
Parameter
Min
Typ
0.08
0.07
4.9
Max
Unit
°C/Watt
Baseplate to sink; flat, greased surface
Baseplate to sink; thermal pad (P/N 20263)
Baseplate to ambient
°C/Watt
°C/Watt
Baseplate to ambient; 1000 LFM
Thermal capacity
1.1
°C/Watt
165
Watt-sec/°C
Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715
V48A12C500A DC-DC Converter
Rev. 5.3
Page 1 of 8
Set your site on VICOR at www.vicorpower.com
ELECTRICAL CHARACTERISTICS
Electrical characteristics apply over the full operating range of input voltage, output load (resistive) and baseplate temperature,
unless otherwise specified. All temperatures refer to the operating temperature at the center of the baseplate.
MODULE OPERATING SPECIFICATIONS
Parameter
Min
Typ
Max
75
Unit
Vdc
Vdc
Vdc
Vdc
Watts
%
Notes
Operating input voltage
Input surge withstand
Output voltage setpoint
Output OVP setpoint
Output power
36
48
100
<100ms
11.88
13.7
12.00
12.12
14.9
500
Nominal input; full load; 25°C
25°C; recycle input voltage to restart ( 1 minute off )
At 100°C baseplate temperature
Nominal input; 75% of full load; 25°C
14.3
Efficiency
84.7
85.7
MODULE INPUT SPECIFICATIONS
Parameter
Min
Typ
34.9
30.5
78.8
6.8
Max
Unit
Vdc
Notes
Undervoltage turn-on
Undervoltage turn-off
Overvoltage turn-off/on
Dissipation, standby
35.7
29.4
75.7
Vdc
82.5
10.2
Vdc
Watts
No load
MODULE OUTPUT SPECIFICATIONS
Parameter
Min
Typ
±0.02
±0.06
±0.002
100
Max
±0.20
±0.20
±0.005
125
Unit
%
Notes
Line regulation
Low line to high line; full load
No load to full load; nominal input
Over operating temperature range
Nominal input, full load; 25°C; 20MHz bandwidth
Output voltage 95% of nominal
Output voltage <250mV
Load regulation
%
Temperature regulation
Ripple and noise, p-p
Current limit
% / °C
mV
42.5
29.1
48.0
54.3
Amps
Amps
%
Short circuit current
Power sharing accuracy
48.0
54.3
±2
±5
10 to 100% of full load
Of nominal output voltage. For trimming below
90% of nominal, a minimum load of 10% of
maximum rated power may be required.
Programming range
10
110
%
Note: For important information relative to applications where the converter modules are subject to continuous dynamic loading,
contact Vicor applications engineering at 800-927-9474.
MODULE MECHANICAL SPECIFICATIONS
Slotted baseplate (style 1) requires no designator.
For threaded baseplate add a "2" to the end of the
part number. For thru-hole add a "3".
Baseplate
Pin style
Slotted (Style 1)
Short (Style 1)
For long pin configuration add “L” to the end of the
part number. See page 7 for pin dimensions.
Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715
V48A12C500A DC-DC Converter
Rev. 5.3
Page 2 of 8
Set your site on VICOR at www.vicorpower.com
ELECTRICAL CHARACTERISTICS, continued
MODULE CONTROL SPECIFICATIONS
Parameter
Min
Typ
Max
Unit
Notes
PRIMARY SIDE (PC = Primary Control; PR = Parallel)
PC bias voltage
current limit
5.50
1.5
5.75
2.1
6.10
3.0
Vdc
mA
PC current = 1.0 mA
PC voltage = 5.5V
PC module disable
PC module enable delay
PC module alarm
2.3
2.6
4
2.9
7
Vdc
ms
Must be able to sink ≥4 mA. See Fig. 1
0.5
6.1
Vavg
Volts
mA
UV, OV, OT, module fault. See Figs. 2 and 4
PR load >30 ohms, < 30 pF
PR emitter amplitude
PR emitter current
5.7
150
375
2.4
5.9
PR receiver impedance
PR receiver threshold
PR drive capability
500
2.5
625
2.6
12
ohms
Volts
modules
25°C
Minimum pulse width: 20ns
Without PR buffer amplifier
SECONDARY SIDE (SC = Secondary Control)
SC bandgap voltage
SC resistance
1.21
990
1.23
1000
0.033
0
1.25
Vdc
ohms
µF
Referenced to –Sense
1010
SC capacitance
SC module alarm
Vdc
With open trim; referenced to –Sense. See Fig. 6
MODULE GENERAL SPECIFICATIONS
Parameter
Min
Typ
Max
Unit
Notes
Remote sense (total drop)
Isolation voltage (in to out)
Isolation voltage (in to base)
Isolation voltage (out to base)
0.5
Vdc
0.25V per leg (senses must be closed)
3000
1550
500
Vrms
Vrms
Vrms
Complies with reinforced insulation requirements
Complies with basic insulation requirements
Complies with operational insulation requirements
Isolation resistance (in to out)
Weight
10
7.3 (210)
115
megohms
8 (227) ounces (grams)
°C
Temperature limiting
100
See Figs. 2 and 4
UL1950, CSA950, EN60950, VDE0805, BS7002,
IEC 60950. With a fuse in series with the +Input
Agency approvals
UL, CSA, TÜV, BABT, CE, VDE
Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715
V48A12C500A DC-DC Converter
Rev. 5.3
Page 3 of 8
Set your site on VICOR at www.vicorpower.com
CONTROL FUNCTIONS - PC PIN
Module Enable/Disable
Module Alarm
The module may be disabled by pulling PC below 2.3V with
respect to the –Input. This may be done with an open collector
transistor, relay, or optocoupler. Multiple converters may be
disabled with a single transistor or relay either directly or via
“OR’ing” diodes. See Figure 1.
The module contains “watchdog” circuitry which monitors
input voltage, operating temperature and internal operating
parameters. In the event that any of these parameters are
outside of their allowable operating range, the module will shut
down and PC will go low. PC will periodically go high and the
module will check to see if the fault (as an example,
overtemperature) has cleared. If the fault has not been cleared,
PC will go low again and the cycle will restart. The SC pin will
go low in the event of a fault and return to its normal state after
the fault has been cleared. See Figures 2 and 4.
Primary Auxiliary Supply
At 5.7V, PC can source up to 1.5mA. In the example shown in
Figure 3, PC powers a module enabled LED.
Input Undervoltage
Input Overvoltage
+In
PC
+Out
+In
PC
Overtemperature
Auto
Restart
Module Faults
SW1
+S
SC
–S
2-20ms typ.
50Ω
f (V )
IN
SW1, 2, & 3
shown in
"Fault" position
1K
SW2
SW3
PR
–In
PR
–In
Disable
5.7Vdc
(0-3mA)
1.23
Vdc
–Out
6K
Disable = PC <2.3V
Figure 1—Module enable/disable.
Figure 2—PC/SC module alarm logic.
+In
PC
Fault
PC
40µs typ.
5.7V
4kΩ
"Module
Enabled"
PR
–In
1.23V
2-20ms typ.
SC
Figure 3—LED on-state indicator.
Figure 4—PC/SC module alarm timing.
+In
PC
Optocoupler
+Out
+S
SC
–S
4kΩ
Alarm
PR
–In
1.00V
–Out
Figure 5—Isolated on-state indicator.
Figure 6—Secondary side on-state indicator.
Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715
V48A12C500A DC-DC Converter
Rev. 5.3
Page 4 of 8
Set your site on VICOR at www.vicorpower.com
CONTROL FUNCTIONS - SC PIN
Output Voltage Programming
The output voltage of the converter can be adjusted or
programmed via fixed resistors, potentiometers or voltage
DACs. See Figures 7 and 8.
+Out
+Out
+S
+S
RU
Trim Up
Error
Amp
Error
Amp
SC
–S
Load
SC
–S
Load
RD
Trim Down
1kΩ
0.033µF
1kΩ
0.033µF
–Out
–Out
1.23V
1.23V
1,000 Vout
1,000 (Vout-1.23) Vnom
1.23 (Vout-Vnom)
R
(ohms) =
D
–
1,000
R
(ohms) =
Vnom - Vout
U
Figure 7—Output voltage trim down circuit.
Figure 8—Output voltage trim up circuit.
Trim Down
Trim Up
1. This converter is not a constant power device – it has a
constant current limit. Hence, available output power is
reduced by the same percentage that output voltage is
trimmed down. Do not exceed maximum rated output current.
1. The converter is rated for a maximum delivered power. To ensure
that maximum rated power is not exceeded, reduce maximum
output current by the same percentage increase in output voltage.
2. The trim up resistor must be connected to the +Sense pin.
2. The trim down resistor must be connected to the –Sense pin.
3. Do not trim the converter above maximum trim range
(typically +10%) or the output over voltage
protection circuitry may be activated.
Trim resistor values calculated automatically:
On-line calculators for trim resistor values are available
on the vicor website at: vicorpower.com/tools.html.
Resistor values can be calculated for fixed trim up, fixed
trim down and for variable trim up or down cases for both
1st and 2nd Generation DC-DC converters.
In addition to trimming information, the web site and the
Applications Manual also include design tips, applications
circuits, EMC suggestions, thermal design guidelines and
PDF data sheets for all available Vicor products.
Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715
V48A12C500A DC-DC Converter
Rev. 5.3
Page 5 of 8
Set your site on VICOR at www.vicorpower.com
CONTROL FUNCTIONS - PR PIN
Parallel Operation
sharing but is not fault tolerant. Minus In pins must be tied to
the same electric potential. See Figure 9.
The PR pin supports paralleling for increased power with N+1
(N+M) redundancy and phased array capability. Modules of
the same input voltage, output voltage, and power level will
current share if all PR pins are suitably interfaced.
AC coupled single-wire interface. All PR pins are connected
to a single communication bus through 0.001µF (500V)
capacitors. This interface supports current sharing and is fault
tolerant except for the communication bus. See Figure 10.
Compatible interface architectures include the following:
DC coupled single-wire interface. All PR pins are directly
connected to one another. This interface supports current
+In
+In
PC
PC
0.001µF
Module 1
Module 1
PR
PR
–In
+In
–In
+In
PC
PC
Module 2
Module 2
0.001µF
(up to 12)
(up to 12)
PR
PR
–In
–In
Ground plane
Ground plane
Figure 10—AC coupled single-wire interface.
Figure 9—DC coupled single-wire interface.
+Out
• The +Out and –Out power buses should be
designed to minimize and balance parasitic
impedance from each module output to the load.
+S
–S
+S
SC
–S
Module 1
Module 2
–Out
+Out
+S
• The +Sense pins should be tied to the same
point on the +Out power bus; the –Sense pins
should be tied to the same point on the –Out
power bus.
+Out
+S
SC
–S
+S
–S
+S
SC
–S
Load
• At the discretion of the power system designer,
a subset of all modules within an array may be
configured as slaves by shorting SC to –S.
–Out
–S
–Out
+Sense from
other modules
in the array
+Out
+S
• OR’ing diodes may be inserted in series with
the +Out pins of each module to provide
module output fault tolerance.
Module N+1 SC
–S
–Out
Figure 11—N+1 module array output connections.
Figure 12—OR’ing diodes connections.
*
PIN STYLES
Designator
Description
Notes
(None)
Short solder
Requires in-board, mounting
L
S
Long solder
On-board mounting for 0.65" boards
SurfMate or in-board socket mounting
Short ModuMate
N
Long ModuMate
On-board socket mounting
* Pin style designator follows the “A” after the output power and precedes the baseplate designator.
Ex. V375A24C600AN — Long ModuMate Pins
Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715
V48A12C500A DC-DC Converter
Rev. 5.3
Page 6 of 8
Set your site on VICOR at www.vicorpower.com
MECHANICAL DRAWINGS
MODULE OUTLINE
0.50 ±0.02
12,7 ±0,5
Converter Pins
No. Function Label
0.300±0.015
2.20
55,9
0.01
1
+In
+
7,62±0,38
0.50
12,7
4-40 UNC-2B
Thru (4X)***
(Style 2 and 3 only)
0.12* 0.20**
3,1 5,08
2.00
50,8
0.10
2,5
0.23
(REF)
5,8
1.74
44,2
Primary
Control
2
PC
0.10
2,5
CHAMFER
X 45°
3
4
5
6
Parallel
–In
PR
–
0.38
1
2
3
4
(2X)
0.300±0.015
7,62±0,38
9,6
–Out
–
1.80
45,7
ALUMINUM
BASEPLATE
–Sense
–S
FULL R (6X)
Secondary
Control
3.60
91,4
7
SC
4.60
4.200
116,8
106,68
0.13
3,3
8
9
+Sense
+Out
+S
+
(6X)
PINS: TIN/LEAD
HOT SOLDER DIP
9
8
7
6
5
Use a
4-40 Screw (6x)
Torque to:
5 in-lbs
0.43
10,9
0.400
10,16
0.06
0.180
R
(3X)
DIA,(2X)
4,57
1,5
2.20
0.57 N-m
0.700
17,78
1.000
25,40
1.400
35,56
0.54
(9X)
55,9
(REF)
0.080
DIA,(7X)
2,03
Pin Style 1&S
(Short Pin)
Slotted (Style 1)
13,7
or
0.62
15,7
(9X)
Pin Style 2&N
(Long Pin)
Threaded (Style 2)
4-40 UNC-2B (6X)
or
Thru Hole (Style 3)
#30 Drill Thru (6X)
(0.1285)
*
Style 1 baseplate only
** Style 2 & 3 baseplates
*** Reserved for Vicor accessories
Not for mounting
ALL MARKINGS
THIS SURFACE
PCB MOUNTING SPECIFICATIONS
ONBOARD
SOLDER
MOUNT
INBOARD
SOLDER
MOUNT
PIN STYLE 2&N
PIN STYLE 1&S
0.062 ±0.010
PCB THICKNESS
0.094 ±0.003
2,39 ±0,08
0.094 ±0.003
2,39 ±0,08
(7X)
(2X)
1,57 ±0,25
PLATED
THRU HOLE
DIA
0.194 ±0.003
4,93 ±0,08
0.194 ±0.003
4,93 ±0,08
1.790
45,47
0.06
R
(4X)
0.178
4,52
1,5
ALUMINUM
BASEPLATE
1
2
3
4
PINS STYLES
STYLE 1 & 2: TIN/LEAD
HOT SOLDER DIPPED
STYLE S & N: GOLD PLATED COPPER
4.200*
106,68
3.844
97,64
9
8
7
6
5
Unless otherwise specified,
dimensions are in inches
mm
0.400*
Decimals
Tol.
Angles
10,16
0.43
10,9
0.53
13,5
0.700*
17,78
1.000*
25,40
1.400*
35,56
0.XX
±0.01
±0,25
±0.005
±0,127
±1°
* DENOTES
±0.003
±0,08
0.XXX
TOL =
0.195
4,95
Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715
V48A12C500A DC-DC Converter
Rev. 5.3
Page 7 of 8
Set your site on VICOR at www.vicorpower.com
Vicor’s comprehensive line of power solutions includes modular, high
density DC-DC converters and accessory components, configurable power
supplies, and custom power systems.
Information furnished by Vicor is believed to be accurate and reliable. However, no responsibility is
assumed by Vicor for its use. No license is granted by implication or otherwise under any patent or patent
rights of Vicor. Vicor components are not designed to be used in applications, such as life support systems,
wherein a failure or malfunction could result in injury or death. All sales are subject to Vicor’s Terms and
Conditions of Sale, which are available upon request.
Specifications are subject to change without notice.
Component Solutions
45
for Your Power System
Vicor Corporation
25 Frontage Road
Andover, MA, USA 01810
Tel: 800-735-6200
Fax: 978-475-6715
Email
Vicor Express: vicorexp@vicr.com
Technical Support: apps@vicr.com
Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715
V48A12C500A DC-DC Converter
Rev. 5.3
08/03
Set your site on VICOR at www.vicorpower.com
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