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V375B24C300A
User Manual
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VICOR V375B24C300A User Manual

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Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715 V375B24C300A DC-DC Converter Rev. 5.2 Page 1 of 8
Set your site on VICOR at www.vicorpower.com
Shown actual size:
2.28 x 2.2 x 0.5 in
57,9 x 55,9 x 12,7 mm
45
Absolute Maximum Ratings
Parameter Min Typ Max Unit
Thermal Resistance and Capacity
375Vin / 24Vout / 300Watts
DC-DC Converter Module
Model Number V375B24C300A
*
Features
• DC input range: 250 - 425V
• Input surge withstand: 500V for 100ms
• DC output: 24V
• Programmable output: 10 to 110%
• Regulation: ±0.3%
• Efficiency: 87%
• Maximum operating temperature:
100°C at full load
• Power density: 120W/cubic inch
• Height above board: 0.43 in. (10,9 mm)
• Parallelable, with N+M fault tolerance
• Low noise ZCS/ZVS architecture
Typical Applications: distributed power; off-line systems using power PFC front-ends; electric vehicles
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-to­out 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.
*
Part Numbering
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.
See part numbering chart on this page for other product grades.
Parameter Rating Unit Notes
+In to –In voltage -0.5 to +425.0 Vdc +In to –In voltage 500 Vdc <100ms PC to –In voltage -0.5 to +7.0 Vdc PR to –In voltage -0.5 to +7.0 Vdc +Out to –Out voltage -0.5 to +31.7 Vdc +Sense to –Out voltage -0.5 to +31.7 Vdc –Sense to –Out voltage 1.0 Vdc SC to –Out voltage -0.5 to +1.5 Vdc Isolation voltage (in to out) 3000 Vrms Isolation voltage (in to base) 1550 Vrms Isolation voltage (out to base) 500 Vrms Storage temperature (C–Grade) -40 to +125 °C Operating temperature (C–Grade) -20 to +100 °C Baseplate Pin soldering temperature 500 (260) °F (°C) <5 sec;wave solder Pin soldering temperature 750 (390) °F (°C) <7 sec;hand solder Mounting torque 5 (0.57) in-lbs (N-m) 6 each, # 4-40 or M3
V 375 B 12 C 300 A
Input Voltage
24= 24Vin
48= 48Vin 300= 300Vin 375= 375Vin
A = Maxi
B = Mini
C = Micro
Output
Voltage
Product Grade Temperatures (°C)
Grade Storage Operating
C = -40 to +125-20 to +100
T = -40 to +125-40 to +100 H = -55 to +125-40 to +100 M =
-
65 to +125-55 to +100
Pin
Style
Base-
plate
Output
Power
查询V24A12C300A供应商
Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715 V375B24C300A DC-DC Converter Rev. 5.2 Page 2 of 8
Set your site on VICOR at www.vicorpower.com
Parameter Min Typ Max Unit Notes
Operating input voltage 250 375 425 Vdc Input surge withstand 500 Vdc <100ms Output voltage setpoint 23.76 24.00 24.24 Vdc Nominal input; full load; 25°C Output OVP setpoint 27.1 28.1 29.1 Vdc 25°C;recycle input voltage to restart ( 1 minute off ) Output power 300 Watts At 100°C baseplate temperature Efficiency 86 87 % Nominal input; 75% of full load; 25°C
Parameter Min Typ Max Unit Notes
Undervoltage turn-on 242.5 247.5 Vdc Undervoltage turn-off 204.7 212.2 Vdc Overvoltage turn-off/on 429.2 446.3 467.5 Vdc Dissipation, standby 4.5 6.8 Watts No load
MODULE OPERATING SPECIFICATIONS
MODULE INPUT SPECIFICATIONS
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.
Baseplate Slotted (Style 1)
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".
Pin style Short (Style 1)
For long pin configuration add “L”to the end of the part number.
See page 7 for pin dimensions.
MODULE MECHANICAL SPECIFICATIONS
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.
Parameter Min Typ Max Unit Notes
Line regulation ±0.02 ±0.20 % Low line to high line; full load Load regulation ±0.06 ±0.30 % No load to full load; nominal input Temperature regulation ±0.002 ±0.005 % / °C Over operating temperature range Ripple and noise, p-p 190 238 mV Nominal input; full load; 20 MHz bandwidth Current limit 12.7 14.4 16.9 Amps Output voltage 95% of nominal Short circuit current 8.75 14.40 16.90 Amps Output voltage <250mV Power sharing accuracy ±2 ±5 % 10 to 100% of full load
Programming range 10 110 %
Of nominal output voltage.For trimming below 90% of nominal, a minimum load of 10% of maximum rated power may be required.
MODULE OUTPUT SPECIFICATIONS
Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715 V375B24C300A DC-DC Converter Rev. 5.2 Page 3 of 8
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Parameter Min Typ Max Unit Notes
PRIMARY SIDE
(PC = Primary Control; PR = Parallel)
PC bias voltage 5.50 5.75 6.10 Vdc PC current = 1.0 mA
current limit 1.5 2.1 3.0 mA PC voltage = 5.5V PC module disable 2.3 2.6 2.9 Vdc Must be able to sink ≥4 mA. See Fig. 1 PC module enable delay 4 7 ms PC module alarm 0.5 Vavg UV, OV, OT, module fault.See Figs.2 and 4 PR emitter amplitude 5.7 5.9 6.1 Volts PR load >30 ohms, < 30 pF PR emitter current 150 mA PR receiver impedance 375 500 625 ohms 25°C PR receiver threshold 2.4 2.5 2.6 Volts Minimum pulse width: 20ns PR drive capability 12 modules Without PR buffer amplifier
SECONDARY SIDE (SC = Secondary Control)
SC bandgap voltage 1.21 1.23 1.25 Vdc Referenced to –Sense SC resistance 990 1000 1010 ohms SC capacitance 0.033 µF SC module alarm 0 Vdc With open trim; referenced to –Sense.See Fig. 6
Parameter Min Typ Max Unit Notes
Remote sense (total drop) 0.5 Vdc 0.25V per leg (senses must be closed) Isolation voltage (in to out) 3000 Vrms Complies with reinforced insulation requirements Isolation voltage (in to base) 1550 Vrms Complies with basic insulation requirements Isolation voltage (out to base) 500 Vrms Complies with operational insulation requirements
Isolation resistance (in to out) 10 megohms Weight 3.7 (104) 4 (112) ounces (grams) Temperature limiting 100 115 °C See Figs.2 and 4
Agency approvals UL, CSA, TÜV, BABT, CE, VDE
UL1950, CSA950, EN60950, VDE0805, BS7002, IEC 60950.With a fuse in series with the +Input
MODULE CONTROL SPECIFICATIONS
MODULE GENERAL SPECIFICATIONS
ELECTRICAL CHARACTERISTICS, continued
Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715 V375B24C300A DC-DC Converter Rev. 5.2 Page 4 of 8
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CONTROL FUNCTIONS - PC PIN
Module Enable/Disable
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.
Module Alarm
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.
Disable
Disable = PC <2.3V
+Out
+S
SC
–S
–Out
+In PC
PR
–In
Figure 1—Module enable/disable.
Figure 3—LED on-state indicator.
4kΩ
"Module
Enabled"
+Out
+S
SC
–S
–Out
+In
PC
PR –In
Optocoupler
+Out
+S
SC
–S
–Out
+In PC
PR
–In
4kW
Alarm
1.00V
+Out
+S
SC
–S
–Out
+In PC
PR
–In
Figure 2—PC/SC module alarm logic.
Figure 5—Isolated on-state indicator.
2-20ms typ.
Fault
SC
PC
1.23V
5.7V
40µs typ.
Figure 4—PC/SC module alarm timing.
Figure 6—Secondary side on-state indicator.
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
+In
PC
PR
–In
SW1
Auto
Restart
2-20ms typ.
f (VIN)
SW1, 2, & 3
shown in
"Fault" position
5.7Vdc
(0-3mA)
Input Overvoltage Overtemperature
Module Faults
50Ω
SW2
SW3
1.23 Vdc
1K
6K
+Out
+S SC
–S
–Out
Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715 V375B24C300A DC-DC Converter Rev. 5.2 Page 5 of 8
Set your site on VICOR at www.vicorpower.com
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.
CONTROL FUNCTIONS - SC PIN
Figure 8—Output voltage trim up circuit.Figure 7—Output voltage trim down circuit.
RD (ohms) =
1,000 Vout Vnom - Vout
R
U
Trim Up
Load
+Out
+S SC
–S
–Out
Error Amp
1kΩ
1.23V
0.033 µF
R
D
Trim Down
Load
+Out
+S SC
–S
–Out
Error Amp
1kΩ
1.23V
0.033 µF
Trim Down
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.
2. The trim down resistor must be connected to the –Sense pin.
Trim Up
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.
3. Do not trim the converter above maximum trim range (typically +10%) or the output over voltage protection circuitry may be activated.
RU (ohms) =
1,000
(Vout-1.23) Vnom
–
1,000
1.23
(Vout-Vnom)
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 V375B24C300A DC-DC Converter Rev. 5.2 Page 6 of 8
Set your site on VICOR at www.vicorpower.com
+Sense from
other modules
in the array
+In PC
PR
–In
+Out
+S SC
–Out
–S
Figure 12—OR’ing diodes connections.
+Out
+S
SC
–S
–Out
+Out
+S
SC
–S
–Out
+Out
+S
SC
–S
–Out
Load
+S –S
+S –S
+S
–S
Module
2
Module
1
+In PC
PR
–In
+In
PC PR
–In
Module
N+1
+In
PC PR
–In
Figure 11—N+1 module array output connections.
Figure 9—DC coupled single-wire interface.
Module 2
(up to 12)
Module
1
Ground plane
+Out
+S
SC
–S
–Out
+In PC
PR
–In
+Out
+S
SC
–S
–Out
+In PC
PR –In
Module 2
(up to 12)
Module
1
Ground plane
+Out
+S
SC
–S
–Out
+In PC
PR
–In
+Out
+S
SC
–S
–Out
+In
PC
PR –In
Figure 10—AC coupled single-wire interface.
0.001µF
0.001µF
• The +Out and –Out power buses should be designed to minimize and balance parasitic impedance from each module output to the load.
• 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.
• 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.
• OR’ing diodes may be inserted in series with the +Out pins of each module to provide module output fault tolerance.
CONTROL FUNCTIONS - PR PIN
Parallel Operation
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.
Compatible interface architectures include the following: DC coupled single-wire interface.All PR pins are directly
connected to one another. This interface supports current
sharing but is not fault tolerant. Minus In pins must be tied to the same electric potential. See Figure 9.
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.
PIN STYLES
*
Designator Description Notes
(None) Short solder Requires in-board, mounting
L Long solder On-board mounting for 0.065" boards S Short ModuMate SurfMate or in-board socket mounting
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 V375B24C300A DC-DC Converter Rev. 5.2 Page 7 of 8
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(2X)
0.01
0.35 8,8
0.20** 5,1
0.12* 3,1
DIA,(7X)
0.150 3,81
(REF)
DIA,(2X)
0.080
2,03
431
98276 5
0.23 5,8
0.400 10,16
1.400 35,56
1.000 25,40
0.700 17,78
2.20 55,9
1.74 44,2
FULL R (6X)
(6X)
(REF.)
0.10 2,5
1.30 33,0
2.28 57,9
2.20 55,9
0.130 3,30
0.49
12,4
0.65 16,5
0.06 1,5
R(3X)
X 45˚
CHAMFER
Use a 4-40 Screw (6X)
Torque to:
5 in-lbs
.57 N-m
0.54 13,7
0.43 10,9
Pin Style 2&N
(Long Pin)
0.62 15,7
Pin Style 1&S
(Short Pin)
(9X)
(9X)
Slotted (Style 1) or Threaded (Style 2)
4-40 UNC-2B (6X)
or Thru Hole (Style 3)
#30 Drill Thru (6X) (0.1285)
(ALL MARKINGS
THIS SURFACE)
ALUMINUM BASEPLATE
0.50 ±0.02 12,7 ±0,5
* Style 1 baseplate only ** Style 2 & 3 baseplates *** Reserved for Vicor accessories Not for mounting
style 2 & 3 baseplates only (4X)***
0.300 ±0.015 7,62 ±0,38
0.300 ±0.015 7,62 ±0,38
1.900 48,26
2.000 50,80
0.10 2,5
MECHANICAL DRAWINGS
0.195 4,95
1.400* 35,56
1.000* 25,40
0.700* 17,78
0.400* 10,16
1.790 45,47
0.06 1,5
R (4X)
0.158 4,01
56789
12 34
±0.003
±0,08
* DENOTES TOL =
PCB THICKNESS
0.062 ±0.010 1,57 ±0,25
PIN STYLE 1&S
0.094 ±0.003 2,39 ±0,08
INBOARD
SOLDER
MOUNT
0.43 10,9
0.53 13,5
1.900*
48.26
1.900* 48,26
1.584* 40,23
0.164 ±0.003 4,16 ±0,08
PIN STYLE 2&N
0.094 ±0.003 2,39 ±0,08
ONBOARD
SOLDER
MOUNT
0.164 ±0.003 4,16 ±0,08
PLATED
THRU HOLE
DIA
(7X)
(2X)
Unless otherwise specified, dimensions are in inches
mm
Decimals Tol. Angles
0.XX ±0.01 ±0.25 ±1°
0.XXX ±0.005 ±0.127
ALL MARKINGS THIS SURFACE
PINS STYLES STYLE 1 & 2: TIN/LEAD HOT SOLDER DIPPED STYLE S & N: GOLD PLATED COPPER
ALUMINUM BASEPLATE
ies
PCB MOUNTING SPECIFICATIONS
Converter Pins
No. Function Label
1 +In + 2
Primary
PC
Control 3Parallel PR 4 –In – 5 –Out –
6 –Sense –S 7
Secondary
SC
Control 8 +Sense +S 9+Out +
MODULE OUTLINE
PINS:TIN/LEAD
HOT SOLDER DIP
Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715 V375B24C300A DC-DC Converter Rev. 5.2 08/03
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.
Vicor Corporation
25 Frontage Road
Andover, MA, USA01810
Tel: 800-735-6200
Fax: 978-475-6715
Email
Vicor Express: vicorexp@vicr.com Technical Support: apps@vicr.com
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