FARM2CG3 [VICOR]

AC-DC Unregulated Power Supply Module, 1 Output, 1000W, Hybrid, PACKAGE-9;
FARM2CG3
型号: FARM2CG3
厂家: VICOR CORPORATION    VICOR CORPORATION
描述:

AC-DC Unregulated Power Supply Module, 1 Output, 1000W, Hybrid, PACKAGE-9

输入元件
文件: 总11页 (文件大小:816K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
FARM™  
FARMxxxx  
Actual size:  
S
2.28 x 2.2 x 0.5 in  
57,9 x 55,9 x 12,7 mm  
®
C
US  
C
NRTL US  
Filter/Autoranging Rectifier Module Up to 1000 Watts  
Absolute Maximum Rating  
Features  
Parameter  
Rating  
264  
280  
Unit  
Vac  
Vac  
Notes  
Continuous  
100 ms  
RoHS compliant (with F or G pin style)  
EMI filtering  
L to N voltage  
Choice of 500 W or 750 W modules  
96% efficiency  
+Out to Out voltage  
B OK to Out voltage  
EN to Out voltage  
Mounting torque  
400  
Vdc  
Vdc  
Autoranging 115/230 Vac input  
Microprocessor controlled  
Inrush current limiting  
Mini sized package  
16  
16  
Vdc  
4 – 6(0.45 – 0.68)  
40 to 100  
in-lbs (N-m)  
°C  
6 each, 4-40 screw  
H-Grade  
Operating temperature  
Storage temperature  
Power fail signal  
Module enable  
– 55 to 125  
500 (260)  
750 (390)  
3.5  
°C  
°F (°C)  
°F (°C)  
A
H-Grade  
<5 sec; wave solder  
<7 sec; hand solder  
Pin soldering temperature  
Product Highlights  
Output current  
The FARM (Filter/Autoranging Rectifier  
Module) is an AC front-end module which  
provides EMI filtering, autoranging line  
rectification and inrush current limiting. The  
FARM is available in either 500/750 W or  
750/1000 W models in a mini sized package  
measuring only 2.28" x 2.2" x 0.5".  
Baseplate temperature  
100  
°C  
Thermal Resistance and Capacity  
Parameter  
Baseplate to sink  
Min  
Typ  
Max  
Unit  
flat, greased surface  
0.16  
0.14  
°C/Watt  
°C/Watt  
The FARM interfaces directly with  
with thermal pad (P/N 20264)  
worldwide AC mains and may be used with  
Vicor 300 V input DC-DC converters to  
realize an autoranging, high density, low  
profile switching power supply. The FARM  
includes a microcontroller that continuously  
monitors the AC line to control bridge /  
doubler operation. The user need only  
provide external capacitance to satisfy  
system hold-up requirements.  
Baseplate to ambient  
Free convection  
8.0  
1.9  
°C/Watt  
°C/Watt  
1000 LFM  
Part Numbering  
Vicor 2nd Generation packaging technology  
offers flexible mounting options for various  
manufacturing processes. The FARM may be  
installed as a conventional leaded device  
for onboard applications, inboard for low  
profile, height restricted applications,  
FARM 1  
C
1
1
Type  
Product Grade Temperatures (°C)  
Pin Style*  
1 = Short Pin  
2 = Long Pin  
Baseplate  
Product  
1=500/750 W  
2=750/1000 W  
Grade Operating  
Storage  
1 =Slotted  
E = –10 to +100 20 to +125  
C = 20 to +100 40 to +125  
T = 40 to +100 40 to +125  
H = 40 to +100 55 to +125  
2 =Threaded  
S = Short ModuMate  
N = Long ModuMate  
F = Short RoHS  
3 =Thru hole  
G = Long RoHS  
socketed or surface mounted with optional  
ModuMate interconnect products.  
*Pin styles S, N, F & G are compatible with the ModuMate interconnect system for socketing and surface mounting.  
FARM  
Rev 6.3  
vicorpower.com  
800 735.6200  
Page 1 of 11  
4/2013  
FARMxxxx  
ELECTRICAL CHARACTERISTICS  
Electrical characteristics apply over the full operating range of input voltage, output power and baseplate temperature, unless  
otherwise specified. All temperatures refer to the operating temperature at the center of the baseplate. Specifications apply for AC  
mains having up to 5% total harmonic distortion.  
INPUT SPECIFICATIONS (FARM1xxx, FARM2xxx)  
Parameter  
Min  
Typ  
Max  
Unit  
Notes  
Operating input voltage  
low range  
90  
132  
264  
Vac  
Vac  
Autoranging (doubler mode)  
Autoranging (bridge mode)  
high range  
180  
Input undervoltage  
90  
Vac  
No damage  
47  
47  
63  
Hz  
Hz  
C-Grade  
AC line frequency  
Power factor  
440  
T-Grade, H-Grade  
0.60  
Dependent on line source impedance, hold up  
capacitance and load.  
Inrush current  
30  
Amps  
264 Vac peak line  
OUTPUT SPECIFICATIONS  
FARM1xxx  
FARM2xxx  
Typ  
Parameter  
Min  
Typ  
Max  
Min  
Max  
Unit  
Notes  
0
0
500  
750  
0
0
750  
Watts  
Watts  
90 – 132 Vac  
180 – 264 Vac  
Output power  
1000  
Efficiency  
94  
96  
94  
96  
%
Vdc  
µF  
120/240 Vac  
Output voltage  
250  
370  
250  
370  
90 – 264 Vac  
1,750  
2 - 3,300 µF in series; HUB3300-S  
2 - 2,200 µF in series; HUB2200-S  
External hold-up capacitance  
1,100  
µF  
CONTROL PIN SPECIFICATIONS  
Parameter  
Min  
Typ  
Max  
Unit  
Notes  
AC Bus OK (B OK)  
Low state resistance  
Low state voltage  
High state voltage  
B OK true threshold  
B OK false threshold  
15  
0.1  
15.4  
245  
210  
Ω
To negative output – Bus normal  
Bus normal 50 mA max.  
Bus abnormal, 27 K internal pull up to 15 Vdc (see Fig.11)  
Output Bus voltage (see Fig. 8)  
Output Bus voltage  
Vdc  
Vdc  
Vdc  
Vdc  
14.0  
235  
200  
15.0  
240  
205  
Module Enable (EN)  
Low state resistance  
Low state voltage  
High state voltage  
Enable threshold  
Disable threshold  
15  
0.1  
15.4  
245  
195  
Ω
To negative output – Converters disabled  
50 mA max.  
150 K internal pull up to 15 Vdc (see Fig. 10)  
Output bus voltage (see Fig. 8)  
Output bus voltage  
Vdc  
Vdc  
Vdc  
Vdc  
14.0  
235  
185  
15.0  
240  
190  
AC Bus OK - Module Enable, differential error*  
15  
17  
20  
Vdc  
AC Bus OK and Module Enable thresholds track  
* Tracking error between BUS OK and Enable thresholds  
FARM  
Rev 6.3  
vicorpower.com  
800 735.6200  
Page 2 of 11  
4/2013  
FARMxxxx  
ELECTRICAL CHARACTERISTICS (CONT.)  
ELECTROMAGNETIC COMPATIBILITY  
Parameter  
Standard  
Notes  
2 kV50 µs Line or neutral to earth  
Transient / surge immunity  
EN61000-4-5  
1 kV50 µs Line to neutral  
Line disturbance / immunity  
Flicker / inrush  
EN61000-4-11  
EN61000-3-3  
Interruptions and brownouts  
SAFETY SPECIFICATIONS (FARM1xxx, FARM2xxx)  
Parameter  
Min  
Typ  
Max  
Unit  
Notes  
Isolation voltage (in to out)  
None  
Isolation provided by DC-DC converter(s)  
Dielectric withstand  
(I/O to baseplate)  
2,121  
Vdc  
mA  
Baseplate earthed  
Leakage current  
1.5  
264 Vac  
AGENCY APPROVALS  
Safety Standards  
Agency Markings  
Notes  
FARM1 xxx  
UL60950, EN60950, CSA 60950  
Baseplate earthed, fast acting line fuse,  
Bussman ABC10 or Wickman 10 A 194 series  
Low voltage directive  
cTÜVus  
CE Marked  
FARM2 xxx  
UL60950, EN60950, CSA 60950  
Baseplate earthed, fast acting line fuse,  
Bussman ABC15 or Wickman 16 A 194 Series  
Low voltage directive  
cTÜVus  
CE Marked  
GENERAL SPECIFICATIONS  
Parameter  
MTBF  
Min  
Typ  
>1,000,000  
Max  
Unit  
Hours  
Notes  
25 ˚C, Ground Benign, Mil, HDBK, 2 17 F  
Baseplate material  
Aluminum  
®
Ends: Zenite 6130  
Center section: Kapton insulated aluminum  
Cover  
Pin Material  
Style 1 & 2  
Copper, Tin / Lead plated  
Styles S & N (ModuMate compatible)  
Styles F & G (RoHS compliant)  
Copper, Nickel / Gold plated  
Copper, Nickel / Gold plated  
3.1  
(88)  
Ounces  
(grams)  
Weight  
Size  
2.28 x 2.2 x 0.5  
(57,9 x 55,9 x 12,7)  
Inches  
(mm)  
FARM  
Rev 6.3  
vicorpower.com  
800 735.6200  
Page 3 of 11  
4/2013  
FARMxxxx  
OPERATING CHARACTERISTICS  
Vdc output  
Vdc output  
Strap  
Engaged  
Enable  
Enable  
B OK  
B OK  
Figure 1 Start up at 120 Vac input  
Figure 2 Start up at 240 Vac input  
Vdc output  
Vdc output  
Iac input @2 A / mV  
Iac input @2 A / mV  
Enable  
B OK  
Enable  
B OK  
Figure 3 Power down, from 120 Vac  
Figure 4 Power down, from 240 Vac  
Vdc output  
Enable  
B OK  
Figure 6 Typical Conducted Emissions  
Figure 5 Output overvoltage protection 240 Vac range  
FARM  
Rev 6.3  
vicorpower.com  
800 735.6200  
Page 4 of 11  
4/2013  
FARMxxxx  
APPLICATION NOTE  
The Filtered, Autoranging Rectifier Module (FARM) provides an  
effective solution for the AC frontend of a power supply built  
with Vicor DC-DC converters. This high-performance power  
system building block satisfies a broad spectrum of requirements  
and agency standards.  
If the bus voltage is greater than 200 V, the doubler is  
not activated.  
2.1  
3.1  
If the bus voltage is greater than 235 V as the slope  
approaches zero, the inrush limiting thermistor is  
bypassed. Below 235 V, it is not bypassed.  
In addition to providing transient/surge immunity and EMI  
filtering, the FARM contains all of the power switching and  
control circuitry necessary for autoranging rectification, inrush  
current limiting, and overvoltage protection. This module also  
provides converter enable and status functions for orderly  
power up/down control or sequencing. To complete the AC  
front-end configuration, the user only needs to add hold-up  
capacitors, and a few discrete components.  
4.1  
5.1  
The converters are enabled ~150 milliseconds  
after the thermistor bypass switch is closed.  
Bus-OK is asserted after an additional ~150 millisecond  
delay to allow the converter outputs to settle within  
specification.  
Power Down Sequence. (see Fig. 8) When input power is  
turned off or fails, the following sequence occurs as the bus  
voltage decays:  
Functional Description  
Initial Condition  
Bus-OK is de-asserted when the bus voltage falls below  
205 Vdc (Typical).  
1.2  
2.2  
The switch that bypasses the inrush limiting PTC  
(positive temperature coefficient) thermistor is open  
when power is applied, as is the switch that engages the  
strap for voltage doubling. (see Fig. 7). In addition, the  
converter modules are disabled via the Enable (EN) line,  
and Bus-OK (BOK) is high.  
The converters are disabled when the bus voltage  
falls below 190 Vdc. If power is reapplied after the  
converters are disabled, the entire power-up sequence  
is repeated. If a momentary power interruption occurs  
and power is re-established before the bus reaches the  
disable threshold, the power up sequence is not repeated,  
i.e., the power conversion system “rides through” the  
momentary interruption.  
Power Up Sequence. (see Fig. 8):  
Upon application of input power, the output bus capacitors  
begin to charge. The thermistor limits the charge current,  
and the exponential time constant is determined by the  
hold-up capacitor value and the thermistor cold  
1.1  
resistance. The slope (dv/dt) of the capacitor voltage  
versus time approaches zero as the capacitors become  
charged to the peak of the AC line voltage.  
Power  
Up  
Power  
Down  
+OUT  
90–132 V  
AC Line  
PTC  
Thermistor  
400  
Strap  
300  
200  
100  
0
L
Strap  
Output  
Bus  
1.1  
2.1  
EMI  
Filter  
(Vdc)  
–OUT  
Strap  
N
PTC  
3.1  
4.1  
5.1  
Thermistor  
Bypass  
EN  
Microcontroller  
Converter  
2.2  
BOK  
~150 ms  
~150 ms  
Enable  
Bus OK  
1.2  
EMI GRD  
Figure 7 Functional block diagram: autoranging rectifier  
Figure 8 Timing diagram: power up/down sequence  
FARM  
Rev 6.3  
vicorpower.com  
800 735.6200  
Page 5 of 11  
4/2013  
FARMxxxx  
APPLICATION NOTE (CONT.)  
converters would attempt to start while the hold-up capacitors  
OffLine Power Supply Configuration  
were being charged through an unbypassed current limiting  
thermistor, preventing the bus voltage from reaching the  
thermistor bypass threshold, thus disabling the power supply.  
The Enable output (the drain of an N channel MOSFET) is  
internally pulled up to 15 V through a 150 kΩ resistor.  
The FARM maintains the DC output bus voltage between 250  
and 370 Vdc over the entire input voltage range, which is  
compatible with Vicor 300 V input converters. The FARM  
automatically switches to the proper bridge or doubler mode  
depending on the input voltage, eliminating the possibility of  
damage due to improper line connection. The FARM1xxx is  
rated at 500 W in the low range (90-132 Vac input), and  
750 W in the high range (180-264 Vac input). The FARM2xxx  
is rated for 750 W and 1000 W for the low and high input  
ranges respectively. Either of these modules can serve as the  
AC front end for any number and combination of compatible  
converters as long as the maximum power rating is not exceeded.  
A signal diode should be placed close to and in series with  
the PC or (Gate-In) pin of each converter to eliminate the  
possibility of control interference between converters.  
The Enable pin switches to the high state (15 V) with respect  
to the negative output power pin to turn on the converters after  
the power up inrush is over. The Enable function also provides  
input overvoltage protection for the converters by turning  
off the converters if the DC bus voltage exceeds 400 Vdc.  
The thermistor bypass switch opens if this condition occurs,  
placing the thermistor in series with the input voltage, which  
reduces the bus voltage to a safe level while limiting input  
current in case the varistors conduct. The thermistor bypass  
switch also opens if a fault or overload reduces the bus voltage  
to less than 180 Vdc.  
Strap (ST) Pin. In addition to input and output power pin  
connections, it is necessary to connect the Strap pin to the center  
junction of the series hold-up capacitors (C1, C2, see Fig. 9) for  
proper (autoranging) operation. Metal oxide varistors, V1 and  
V2 provide capacitor protection. The bleeder resistors (R1, R2,  
see Fig. 9) discharge the hold-up capacitors when power is  
switched off. Capacitors C7 and C8 are recommended if the  
hold-up capacitors are located more than 3 inches (75 mm)  
from the FARM output pins.  
CAUTION: There is no input to output isolation in  
the FARM, hence the –Out of the FARM and thus the –In  
of the downstream DC-DC converter(s) are at a high  
potential. If it is necessary to provide an external enable /  
disable function by controlling the DC-DC converter’s PC  
pin (referenced to the –In) of the converter an opto-isolator  
or isolated relay should be employed.  
Enable (EN) Pin. (see Fig. 10) The Enable pin must be  
connected to the PC or Gate-In pin of all converter modules to  
disable the converters during power up. Otherwise, the  
C3  
F1  
R1 C1  
N
N
+
+IN  
C10  
V1  
V2  
EMI GND  
C7**  
C8**  
BOK  
ST  
PC (GATE IN)  
FARM  
Vicor DC-DC  
Converter  
Z1  
C9  
Filter/Autoranging  
Rectifier Module  
D3  
PR  
EN  
N/C  
L
–IN  
L
R2 C2  
F3  
*
PE  
R3  
C4  
D1  
Vicor  
Part Number  
C5  
Sizing PCB traces:  
Part  
Description  
C1,2  
Hold-up capacitors  
4,700 pF (Y2 type)  
Film Cap., 0.61 µF  
0.47 µF  
All traces shown in bold carry significant  
current and should be sized accordingly.  
C3-C6  
C7,8**  
C9  
01000  
34610  
03047  
F2  
+IN  
N/ST/L  
+/– In  
10 A rms at 90 Vac and 500 W  
4 A DC at 190 Vdc and 750 W  
R4  
C11  
C10,C11 0.001 µF  
PC (GATE IN)  
D1, 2  
D3, 4  
F1, F2  
Diode  
1N5817  
00670  
26108  
FARM2-xxx  
N/ST/L  
+/– In  
Vicor DC-DC  
Converter  
D2  
20 A rms at 90 Vac and 750 W  
8 A DC at 190 Vdc and 1000 W  
D4  
Use recommended fusing for specific  
DC-DC Converters  
150 KΩ, 0.5 W  
250 Ω  
220 V MOV  
PR  
* See Agency Approvals on FARM data sheet.  
**Required if C1 & C2 are located more than  
3 in (75 mm) from output of the FARM.  
***Not used with VI-260/VI-J60  
R1, 2  
R3, 4***  
V1,2  
Z1  
–IN  
Not used with VI-260/VI-J60  
30234-220  
30076  
MOV 270  
C6  
To additional modules  
Figure 9 Offline Power Supply Configuration  
FARM  
Rev 6.3  
vicorpower.com  
800 735.6200  
Page 6 of 11  
4/2013  
FARMxxxx  
APPLICATION NOTE (CONT.)  
Bus-OK (BOK) Pin. (see Fig. 11) The Bus-OK pin is  
intended to provide early-warning power fail information and  
is also referenced to the negative output pin.  
Not used with VI-260/VI-J60  
+IN  
N
+
15 Vdc  
CAUTION: There is no input-to-output isolation in  
the FARM. It is necessary to monitor Bus OK via an  
optoisolator if it is to be used on the secondary  
(output) side of the converters. A line-isolation  
transformer should be used when performing  
scope measurements. Scope probes should never  
be applied simultaneously to the input and output  
as this will damage the module.  
BOK  
ST  
PC (GATE IN)  
EMI GND  
150 k  
Vicor DC-DC  
FARM  
Converter  
N/C  
L
EN  
PR  
Micro-  
controller  
–IN  
Figure 10 Enable (EN) function  
Filter. (see Fig. 12) An integral input filter consists of a  
common mode choke and Y rated capacitors (line-ground)  
plus two X rated capacitors (line-line). This filter  
configuration provides common mode and differential mode  
insertion loss in the frequency range between 100 kHz and  
30 MHz as illustrated in Figure 6.  
+IN  
+
N
+5 Vdc  
15 Vdc  
BOK  
ST  
PC  
EMI GND  
Hold-up Capacitors. Hold-up capacitor values should be  
determined according to output bus voltage ripple, power fail  
hold-up time, and ride-through time (see Fig. 13).  
Secondary  
referenced  
Vicor DC-DC  
Converter  
N/C  
EN  
PR  
Micro-  
controller  
Many applications require the power supply to maintain  
output regulation during a momentary power failure of  
specified duration, i.e., the converters must hold-up or ride-  
through such an event while maintaining undisturbed output  
voltage regulation. Similarly, many of these same systems  
require notification of an impending power failure in order to  
allow time to perform an orderly shut down.  
–IN  
L
Figure 11 Bus OK (BOK) isolated power status indicator  
The energy stored on a capacitor which has been charged to  
voltage V is:  
ε = 1/2(CV2)  
(1)  
+
N
Where: ε = stored energy  
330 µH  
C = capacitance  
L1  
EMI GND  
BOK  
ST  
4.7 nF  
4.7 nF  
0.099 µF  
CM  
V = voltage across the capacitor  
0.47 µF  
N/C  
L
EN  
Energy is given up by the capacitors as they are discharged by  
the converters. The energy expended  
(the power-time product) is:  
2
2
ε = PΔt = C(V1 –V2 ) / 2  
(2)  
Figure 12 Internal filter  
Where: P = operating power  
Δt = discharge interval  
V1 = capacitor voltage at the beginning  
of Δt  
V2 = capacitor voltage at the end of Δt  
Rearranging Equation 2 to solve for the required capacitance:  
2
2
C = 2PΔt / (V1 –V2 )  
(3)  
FARM  
Rev 6.3  
vicorpower.com  
800 735.6200  
Page 7 of 11  
4/2013  
FARMxxxx  
APPLICATION NOTE (CONT.)  
The power fail warning time (Δt) is defined as the interval  
between B OK and converter shut down (EN) as illustrated  
in Fig. 13. The Bus-OK and Enable thresholds are 205 V  
and 190 V, respectively. A simplified relationship between  
power fail warning time, operating power, and bus  
Example  
In this example, the output required from the DC-DC converter  
at the point of load is 12 Vdc at 320 W. Therefore, the output  
power from the FARM would be 375 W (assuming a converter  
efficiency of 85%). The desired hold-up time is 9 ms over an  
input range of 90 to 264 Vac.  
capacitance is obtained by inserting these constants:  
C = 2PΔt / (2052 – 1902)  
C = 2PΔt / (5,925)  
Determining Required Capacitance for Power Fail  
Warning. Figure 14 is used to determine capacitance for a  
given power fail warning time and power level, and shows  
that the total bus capacitance must be at least 820 µF. Since  
two capacitors are used in series, each capacitor must be at  
least 1,640 µF. Note that warning time is not dependent on  
line voltage. A hold-up capacitor calculator is available on  
the Vicor website, at  
It should be noted that the series combination (C1, C2, see  
Fig. 9) requires each capacitor to be twice the calculated  
value, but the required voltage rating of each capacitor is  
reduced to 200 V. Allowable ripple voltage on the bus (or  
ripple current in the capacitors) may define the capacitance  
requirement. Consideration should be given to converter  
ripple rejection and resulting output ripple voltage.  
www.vicorpower.com/powerbench/product-calculators.  
Determining Ride-through Time. Figure 15 illustrates ride-  
through time as a function of line voltage and output power,  
and shows that at a nominal line of 90 Vac, ride-through  
would be 68 ms. Ride-through time is a function of line  
voltage.  
For example, a converter whose output is 15 V and nominal  
input is 300 V will provide approximately 56 dB ripple  
rejection, i.e., 10 V p-p of input ripple will produce 15 mV  
p-p of output ripple (see Fig. 17). Equation 3 is again used  
to determine the required capacitance. In this case, V1 and  
V2 are the instantaneous values of bus voltage at the peaks  
and valleys (see Fig. 13) of the ripple, respectively. The  
capacitors must hold-up the bus voltage for the time interval  
(Δt) between peaks of the rectified line as given by:  
Determining Ripple Voltage on the Hold-up Capacitors.  
Figure 16 is used to determine ripple voltage as a function of  
operating power and bus capacitance, and shows that the  
ripple voltage across the hold-up capacitors will be 12 V p-p.  
Δt = (π θ) / 2πf  
(4)  
Determining the Ripple on the Output of the DC-DC  
Converter. Figure 17 is used to determine the approximate  
ripple rejection of the DC-DC converter and indicates a ripple  
rejection of approximately 60 dB for a 12 V output. Since the  
ripple on the bus voltage is 12 Vac and the ripple rejection of  
the converter is 60 dB, the output ripple of the converter due  
to ripple on its input (primarily 120 Hz) will be 12 mV p-p.  
Where: f = line frequency  
θ = rectifier conduction angle  
The approximate conduction angle is given by:  
θ = Cos-1(V2/V1)  
(5)  
For more information about designing an autoranging  
AC input power supply using the FARM and Vicor DC-DC  
converter modules, contact Vicor Applications Engineering  
at the nearest Vicor Technical Support Center, or send email  
to apps@vicorpower.com.  
Another consideration in hold-up capacitor selection is their  
ripple current rating. The capacitors’ rating must be higher  
than the maximum operating ripple current. The  
approximate operating ripple current (rms) is given by:  
Irms = 2P/Vac  
(6)  
• • •  
Where: P = total output power  
Vac = operating line voltage  
Calculated values of bus capacitance for various hold-up  
time, ride-through time, and ripple voltage requirements are  
given as a function of operating power level in Figures 14,  
15, and 16, respectively.  
FARM  
Rev 6.3  
vicorpower.com  
800 735.6200  
Page 8 of 11  
4/2013  
FARMxxxx  
APPLICATION NOTE (CONT.)  
Hold-up Time  
Power Fail  
Warning  
Ripple (V p-p)  
π θ  
θ
254 V  
205 V  
190 V  
Ride-Through Time  
Bus OK  
Power  
Converter  
Shut down  
Fail  
Figure 13 Hold-up time  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
40  
35  
30  
25  
20  
15  
10  
5
Total  
capacitance  
820 µF  
90 Vac  
115 Vac  
(FARM2XXX)  
(FARM1XXX)  
0
0
250  
500  
750  
1000  
1000  
250  
500  
750  
Operating Power (W)  
Operating Power (W)  
Figure 14 Power fail warning time vs. operating power  
and total bus capacitance, series combination of  
C1, C2 (see Fig. 9)  
Figure 15 Ride-through time vs. operating power  
30  
25  
20  
15  
10  
5
80  
75  
70  
65  
60  
55  
50  
45  
40  
820 µF  
680 µF (FARM1XXX)  
1100 µF  
1300 µF  
500  
(FARM2XXX)  
1600 µF  
2200 µF  
0
250  
2
5
15  
30  
50  
750  
1000  
Output Voltage  
Operating Power (W)  
Figure 16 Ripple voltage vs. operating power and bus  
capacitance, series combination of C1, C2  
(see Fig. 9)  
Figure 17 Converter ripple rejection vs. output voltage (typical)  
FARM  
Rev 6.3  
vicorpower.com  
800 735.6200  
Page 9 of 11  
4/2013  
FARMxxxx  
Mechanical Diagram  
Converter Pins  
0.50 0.02  
12,7 0,5  
No. Function Label  
1
2
3
4
5
6
7
8
9
Neutral  
N
GND  
NC  
L
EMI  
2.20  
55,9  
1.76  
44,7  
0.01  
0.23  
5,8  
Line  
–Out  
(REF)  
style 2 & 3  
baseplates only  
(4X)***  
2.000  
50,80  
0.49  
12,4  
0.10  
2,5  
0.12* 0.20**  
3,1 5,1  
0.300 0.015  
7,62 0,38  
Enable  
Strap  
EN  
ST  
0.10  
X 45˚  
2,5  
CHAMFER  
1
9
2
8
3
6
4
5
0.35  
8,8  
BUS OK BOK  
+Out  
0.300 0.015  
7,62 0,38  
(2X)  
0.65  
16,5  
FULL R (6X)  
+
2.28  
57,9  
1.900  
Pin C  
L
1.30  
33,0  
ALUMINUM  
BASEPLATE  
48,26  
0.130  
(6X)  
3,30  
7
Use a 4-40 Screw (6X)  
Torque to:  
0.150  
3,81  
0.080  
2,03  
DIA,(2X)  
0.43  
10,9  
0.06  
1,5  
5 in-lbs  
0.57 N-m  
R
(3X)  
2.20  
55,9  
(REF.)  
0.400  
10,16  
FULL R (6X)  
DIA,(7X)  
0.54  
(9X)  
13,7  
0.700  
17,78  
Pin Style 1&S  
(Short Pin)  
Slotted  
1.000  
25,40  
1.400  
35,56  
0.13  
3,3  
0.62  
(9X)  
15,7  
(6X)  
Pin Style 2&N  
(Long Pin)  
Threaded  
4-40 UNC-2B (6X)  
Thru Hole  
#30 Drill Thru (6X)  
(0.1285)  
*
Style 1 baseplate only  
** Style 2 & 3 baseplates  
*** Reserved for Vicor accessories  
Not for mounting  
Pin center line  
C
L
PCB Mounting Specifications  
INBOARD  
SOLDER  
MOUNT  
ONBOARD  
SOLDER  
MOUNT  
SHORT PIN STYLE  
0.094 0.003  
LONG PIN STYLE  
0.062 0.010  
PCB THICKNESS  
0.094 0.003  
2,39 0,08  
(7X)  
1,57 0,25  
2,39 0,08  
PLATED  
THROUGH HOLE  
DIA  
0.164 0.003  
4,16 0,08  
0.164 0.003  
4,16 0,08  
(2X)  
1.790**  
45,47  
ALL MARKINGS  
THIS SURFACE  
0.06  
1,5  
R
(4X)  
0.158  
4,01  
1
2
3
4
1.575**  
40,00  
1.900*  
48.,26  
ALUMINUM  
BASEPLATE  
9
8
7
6
5
PINS STYLES  
SOLDER:TIN / LEAD PLATED  
MODUMATE: GOLD PLATED COPPER  
RoHS: GOLD PLATED COPPER  
0.400*  
10,16  
11,5  
0.53  
13,5  
0
0.45  
0.700*  
17,78  
Consult Vicor Application Note:  
Soldering methods and procedures for  
1st and 2nd Generation modules.  
1.000*  
25,40  
1.400*  
35,56  
0.003  
0,08  
* DENOTES TOL =  
** PCB WINDOW  
0.195  
4,95  
FARM  
Rev 6.3  
vicorpower.com  
800 735.6200  
Page 10 of 11  
4/2013  
FARMxxxx  
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.  
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  
FARM  
Rev 6.3  
vicorpower.com  
800 735.6200  
Page 11 of 11  
4/2013  

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