USER GUIDE | UG:122
PFC MicroS™
Power Factor Corrected AC-DC Switcher
Contents
Page
Overview
1
Standard Features
2
Optional Features
2
Part Numbering
3
Mechanical Considerations
3
PFC MicroS Dos and Don’ts
3
Technical Description
4
PFC MicroS Quick
Install Instructions
5
PFC MicroS
Mechanical Drawings
7
Output Connections
for the PFC MicroS
8
Output Connectors
for PFC MicroS
9
Power Connections
9
Overview
Single-Output
Power Supplies (Arrays) 15
The PFC MicroS is an ultra-low-profile switching power supply that combines the advantages of power
factor correction (PFC) with high power density. This guide covers both the standard and rugged COTS
(MI) versions of the supply. The PFC MicroS provides up to three isolated outputs (from one slot) and
accommodates the following Vicor DC-DC Converters:
Specifications
16
VI-200™/VI-J00™ Series: 1 full brick or 2 half brick
Output Power De-Rating
19
Maxi/Mini/Micro Series: 1 full brick, 2 half bricks or 3 quarter bricks
Current Share Boards –
Optional Feature
21
User Interface Connections
11
The use of these converters give the PFC MicroS the inherent power flexibility typical of all
Vicor products. Accepting input voltages of 85 – 264VAC, and 100 – 300VDC, the PFC MicroS
can provide up to 600 Watts in a package size of 1.86 x 5.06 x 7.95in [47 x 128,5 x 201,9mm].
The PFC MicroS is factory configured to meet output requirements of the user.
UG:121
Page 1
Standard Features
nn
Power Factor Correction: Typically 0.98 (>75% Load)
nn
Universal Input: 85 – 264VAC, 47 – 500Hz, or 120 – 300VDC
nn
Power Output: 600W at 230VAC (200VAC minimum input); 500W at 115VAC (100VAC minimum input)
nn
Up to three isolated outputs (one slot)
nn
Fan cooled
nn
Full power to 45°C; half power at 65°C
nn
Soft start for limiting inrush current
nn
Conducted EMI: FCC Class A; EN 55022, Class A (consult factory)
nn
Harmonic Distortion to EN61000-3-2
nn
AC Power OK status signal;
nn
Output Sequencing and General Shut Down
nn
Autosense (Refer to Page 6 and 14 for more information on Autosense)
nn
Output overcurrent protection on all outputs
nn
Output overvoltage protection (not applicable when using VI-J00 DC-DC Converters)
nn
Output overtemperature limiting
(not applicable when using VI-J00 DC-DC Converters )
nn
Ride-through (hold-up) time: >20ms at 500W load (nominal line)
nn
Size: 1.86 x 5.06 x 7.95in [47,3 x 128,5 x 201,9mm]
nn
Safety Agency Approvals: CE Marking, TÜV CUE
(certain configurations may not have all listed approvals)
nn
Uses 300VDC input VI-200™/VI-J00™ modules and/or 375VDC input Maxi/Mini/Micro modules
nn
Power good status signal when Maxi, Mini or Micro modules used
Optional Features
nn
I/T/H-grade output converters
nn
Current Share Board for unit to unit power sharing - see Pages 22 – 23
nn
Connector kits (#19-130044)
nn
MI Chassis specific options:
nnMil-STD 810 for Shock and Vibration
nnMil-STD 704 and 1399 for Overvoltage and Transients
nn–40°C operation
nnConformal coating - contact factory
UG:121
Page 2
Part Numbering
PFC MicroS
PSx1-x2 x3(x4)-xxxx-x5
ex: PS2-20-6544-G
x1 = number of outputs
x2 = number of VI-200™/VI-J00™ modules
x3 = number of Maxi/Mini/Micro modules
(x4 ) = optional Factory assigned
xxxx = sequential number assigned by Vicor
x5 = optional Factory assigned
Note: x5 = MI for rugged chassis, = MC for rugged chassis with conformal coating
Mechanical Considerations
The PFC MicroS™ can be mounted on one of three surfaces using standard 8-32 or 4mm screws.
Maximum allowable torque is 5in.lbs, and the maximum penetration of 0.25in [6 mm] on the sides and
0.125in [3mm] on the bottom.
When selecting a mounting location and orientation, the unit should be positioned so air flow is not
restricted. Maintain a 2in [5,1cm] minimum clearance at both ends of the PFC MicroS, and route all
cables so air flow is not obstructed. The power supply draws air in at the fan side/AC input side and
exhausts air out the load side. If air-flow ducting is used, avoid sharp turns that could create back
pressure. The fans move approximately 10CFM of air.
Avoid excessive bending of output power cables after they are connected to the output terminals.
For high-current outputs, use cable ties to support heavy cables and minimize mechanical stress on
connectors. Be careful not to short-out to neighboring outputs. The maximum torque recommended on
output nuts is 10in.lbs.
Avoid applications in which the unit is exposed to excessive shock or vibration levels as the unit
is designed primarily for office type equipment. In such applications, a shock absorbing mount
design is required.
PFC MicroS Dos and Don’ts
nn
Do not restrict air flow to the unit. The cooling fan draws air into the unit and forces it out at
the output power terminals. A minimum of two inches in front and behind the supply should be
maintained in order to prevent air obstructions.
nn
Run the output (+/–) power cables next to each other to minimize inductance.
Use twisted pairs if possible.
nn
Do not attempt to repair or modify the power supply in any manner. In the event of problems, contact
Customer Service at 1-800-735-6200.
nn
Insert proper fault protection at power supply input terminals (i.e., a fuse).
nn
Use proper size wires to avoid overheating and excessive voltage drop.
nn
Output voltages over 60VDC, whether from individual modules or series arrays, are considered
as hazardous secondary outputs under UL 60950. Appropriate care must be taken in design
implementation of the supply.
UG:121
Page 3
Technical Description
The PFC MicroS™ consists of an off-line single-phase, power-factor-corrected front end, EMI filter,
cooling fan, customer interface, power supply control circuitry, associated housekeeping circuits, and a
selection of Vicor VI-200™/VI-J00™ and/or Maxi/Mini/Micro DC-DC converters.
Input AC mains voltage is applied to input connector MBJI. The input current is passed through an EMI
filter designed to meet conducted noise limit "A" specifications of FCC Part 15.
At start up, inrush current is limited by a PTC thermistor. The PTC is shunted out shortly after initial
power-up by a DC bus voltage sense circuit driving a relay. After rectification, the input voltage is put
through a boost converter that keeps the AC input current sinusoidal and synchronized with the input
AC voltage (in compliance with EN61000). The boost converter delivers a regulated input to the hold-up
capacitors and a high voltage backplane. The backplane supplies power to the DC-DC converters that
provide the desired low voltage regulated outputs.
Output voltage conversion is achieved by the Vicor family of Zero-Current Switching (ZCS) DC-DC
converters. These are forward converters in which the main switching element switches at zero current.
This patented topology has a number of unique attributes: low switching losses; high-frequency
operation, resulting in reduced size for magnetics and capacitors; excellent line and load regulation;
wide adjustment range for output; low EMI/RFI emission and high efficiencies.
At initial power-up, the PFC MicroS outputs are disabled to limit the inrush current and to allow the
DC bus potential to settle out to the correct operating level. A low-power flyback converter converts
the high-voltage DC bus into regulated low voltage to power the internal housekeeping circuits and
DC cooling fan.
The internal housekeeping VCC comes up within 1s after the application of input power. Once the
high‑voltage bus is within operating limits, the AC Power OK signal asserts to a TTL "1," indicating the
input power is OK, and the power outputs will come up 250ms later.
An output Enable/Disable function is provided to control Vicor’s DC-DC converters. If the Enable/Disable
control pin is pulled low, the modules output is disabled. The nominal delay associated for an output
to come up when measured from release of the Enable/Disable pin is 9 – 12ms. The General Shut Down
function controls all outputs simultaneously and works in a similar manner.
Figure 1
PFC MicroS architecture
Input
Line Filter
Bridge
Rectifier
Soft Start
Circuit
Boost Converter
Output Card #1
Power
Output
PFC Control
Customer
Interface
Power Supply
Control
Fan
Enable/Disable - Power Good Read
Isolated
Housekeeping
Power Supply
UG:121
Page 4
PFC MicroS™ Quick Install Instructions
(For Mechanical Drawing, see page 7)
Mounting the PFC MicroS
nn
The PFC MicroS can be mounted on either of three sides.
nn
Use #8-32 or 4mm mounting screws. Maximum penetration should not exceed 0.25in [6mm] on the
side and 0.125in [3mm] on the bottom.
nn
Maintain 2in [5,1cm] clearance at both ends of power supply for air flow.
Input Connections
MBJ1-5 PIN
L1
Not Connected
L2/N
Not Connected
GND
DUAL MINI
MODULES
M1
MAXI
MODULE
+
M2
-
nn
A fuse or circuit breaker in the input line is necessary for safety requirements (10A).
nn
Molex mating receptacle 39-01-4051, terminals 39-00-0089, crimp tool Molex # 11-01-0199.
Output Connections
Installing bus bars on output studs (when full-size and half-size modules used):
10-32 STUDS
nn
The right stud is Positive and the left stud is the Return on single output cards.
M1
S1J3
M2
nn
Apply input AC power connector MBJ1.
nn
Maximum torque is 5in.lbs.
Power Connections
-
S1J1
M1
Input Power MBJ1
-
nn
Remove the nut and place ring lug over output stud.
+
nn
Replace and tighten the nut to a torque of 10 inch pounds.
Do Not over-tighten nuts.
S1J2
+
M1
Installing power connectors with 16-pin Molex connectors (when quarter size modules used):
S1J1
16 15 14 13 12 11 10 9
8 7 6 5 4 3 2 1
S1J1 (16 Pin)
-
+ T -
- + T
+
N/C
- +
- + T - +
nn
S1J1-7 and S1J1-15 are Positive for output #1, while pins
S1J1-8 and S1J1-16 are the Return.
S1J1-4 and S1J1-12 are Positive for output #2, while pins
S1J1-5 and S1J1-13 are the Return.
S1J1-1 and S1J1-9 are Positive for output # 3, while pins
S1J1-2, and S1J1-10 are the Returns.
nn
For this 16-pin housing, use Molex mating receptacle #39-01-2160 with #39-00-0039 terminals.
nn
Attach 18 – 24AWG stranded wire using Molex tool #11-01-0197.
nn
See Page 8 for diagrams of output connections.
UG:121
Page 5
Sense Connections
Sense Connections
Pin
Trim Pin
+REMOTE SENSE
–REMOTE SENSE
1
2
3
Sense connections on output connections with studs:
nn
The PFC MicroS is shipped with Autosense installed
(For more information on Autosense, refer to Page 14)
nn
For Remote Sense, connect Remote-Sense wires to the Trim Connector
(S1J2 connector for single outputs, and S1J1/J3 connector for dual outputs).
nn
Pin 2 is the +SENSE and Pin 3 is the –SENSE.
nn
Use Molex mating receptacle #50-57-9403 with #16-02-0103 terminals.
nn
Attach terminals to 24 – 30AWG stranded twisted pair wire using
Molex tool #11-01-0208.
nn
Attach opposite end of sense lines to point where regulation is desired.
Verify that sense lines are not cross-connected.
Note: Remote Sense is not available for triple-output configurations.
Sense Connections
Pin
Trim Pin
+REMOTE SENSE
–REMOTE SENSE
1
2
3
S1J1
8 7 6 5 4 3 2 1
S1J1 (16 Pin)
+ T -
- + T
+
N/C
- +
- + T - +
CBJ3 E/D INTERFACE CONNECTOR
MATING CONNECTOR: (WESTCOR KIT P/N: 19-130044)
HOUSING: MOLEX (50-57-9412)
SOCKET CRIMP 24-30 AWG: MOLEX (16-02-0097)
CRIMP TOOL: MOLEX (11-01-0209)
PIN DESCRIPTION
CBJ3-1
CBJ3-2
CBJ3-3
CBJ3-4
CBJ3-5
CBJ3-6
CBJ3-7
CBJ3-8
CBJ3-9
CBJ3-10
CBJ3-11
CBJ3-12
SGND
PGR
ACOK
N/C*
N/C*
N/C*
ED3
ED2
ED1
GSD
PGDV
+5 VS
Trim connections on output with studs:
nn
Pin 1 on the Trim connector provides Trim access.
(S1J2 connector for single outputs, and S1J1/J3 connector for dual outputs.)
nn
Use Molex mating receptacle #50-57-9403 with #16-02-0103 terminals.
16 15 14 13 12 11 10 9
-
Trim Connections
*For the PFC MicroS, ED4-6
are NOT used/connected.
nn
Attach 24 – 30AWG stranded wire using Molex tool #11-01-0208.
nn
Trim Connections for output connections with 16-pin Molex connectors:
nn
S1J1-14 provides Trim access for output #1, and
S1J1-6 provides Trim access for output #2, and
S1J1-3 provides Trim access for output #3.
Interface Connections
nn
CBJ3-1 is Signal Ground,
CBJ3-2 is Power Good Read and
CBJ3-3 is AC-OK.
nn
CBJ3-7-9 are Enable/Disable (For the PFC MicroS, CBJ3 4-6 are not used/connected),
CBJ3-10 is General Shut Down,
CBJ3-11 is Power Good Data Valid (PGDV) and
CBJ3-12 is +5 VS.
nn
Use Molex mating receptacle #50-57-9412 with #16-02-0097 cinch pins.
nn
Attach terminals to 24 – 30AWG stranded wire.
UG:121
Page 6
UG:121
2
SGND
PGR
ACOK
N/C
N/C
N/C
ED3
ED2
ED1
GSD
PGDV
+5 VS
CBJ3 (12 PIN)
PIN 1
L1
ED 4 THRU 6 NOT USED.
ED / REFERENCE DESIGNATION LEGEND:
MB= MOTHER BOARD
CB= CONTROL BOARD
S1 = (SLOT 1) DAUGHTER BOARD MODULES ED 1 THRU 3
CONNECTOR PART NUMBERS SPECIFIED ARE MOLEX OR
EQUIVALENT.
A COMPLETE SET OF MATING CONNECTORS CAN BE
PURCHASED FROM WESTCOR BY SPECIFYING CONNECTOR
KIT P/N 19-130044
2
3
DIMENSIONS SHOWN ARE FROM BOTTOM SURFACE.
1 MOUNTING PEMNUTS EXTEND .010 PAST BOTTOM SURFACE.
5
4
1.29 32.69
FLOW
AIR
.16 4.09
1.29 32.69
1.29 32.82
MBJ1 A/C INPUT 4 5
MATING CONNECTOR: (WESTCOR KIT P/N: 19-130044)
L2/N HOUSING: MOLEX (39-01-4051)
SOCKET CRIMP 16 AWG: MOLEX (39-00-0089)
CRIMP TOOL: MOLEX (11-01-0199)
GN
MBJ1 (5 PIN)
1
2
3
4
5
6
7
8
9
10
11
12
PIN DESCRIPTION
NOTES: UNLESS OTHERWISE SPECIFIED
N/C
N/C
3
CBJ3 E/D INTERFACE CONNECTOR 4 5
MATING CONNECTOR: (WESTCOR KIT P/N: 19-130044)
HOUSING: MOLEX (50-57-9412)
SOCKET CRIMP 24-30 AWG: MOLEX (16-02-0097)
CRIMP TOOL: MOLEX (11-01-0209)
5.100 129.54
1 1.86 47.29
1
5.06 128.52
.71 18.03
3.500 88.90
1.22 31.04
S1J1
1.22 31.04
1
CUSTOMER MOUNTING HOLES 4X.
USE 8-32 X .12 or M4 X 3MM LG SCREW
FROM OUTSIDE OF POWER SUPPLY
CUSTOMER MOUNTING HOLES 2X.
USE 8-32 X .25 or M4 X 6MM MAX LG SCREW
FROM OUTSIDE OF POWER SUPPLY
5.100 129.54
7.95 201.88
CUSTOMER MOUNTING HOLES 2X.
USE 8-32 X .25 or M4 X 6MM MAX LG SCREW
FROM OUTSIDE OF POWER SUPPLY
5.100 129.54
PFC MICROS
DUAL OUTPUT
UNIT PICTURED
(2 JUNIOR OR
MINI
MODULES)
3
J2 REMOTE
SENSE/TRIM
PIN
S1J2
M +
M +
3
J2 REMOTE
SENSE/TRIM
PIN
M M S1J6
M +
S1J3
M -
10-32 STUDS
10-32 STUDS
SINGLE OUTPUT
UNIT PICTURED
(1 VI-200 OR
MAXI
See page ??? for detailed output connection information.
TRIPLE
OUTPUT UNIT
PICTURED
(3 MICRO
MODULES)
3
16 PIN CONNECTOR
PFC MicroS™ Mechanical Drawings
Page 7
Output Connections for the PFC MicroS™
A. OUTPUT STUDS - SINGLE, DUAL OUTPUTS - when populated with full or half size module(s)
-VOUT
10-32 OUTPUT STUDS
SxJ2 REMOTE SENSE/TRIM
PIN CONNECTOR
+VOUT
3
2
1
–SENSE
+SENSE
TRIM
MATING CONNECTOR:
HOUSING: MOLEX (50-57-9403),
TERMINAL FEM CRIMP 24-30 AWG: MOLEX (16-02-0103)
USE CRIMP TOOL: MOLEX (11-01-0208)
B. 16-PIN MOLEX CONNECTOR - SINGLE, DUAL, TRIPLE OUTPUTS - when populated with
8 16
*SxJ1 (16-PIN OUTPUT, REMOTE SENSE
AND TRIM PIN CONNECTOR)
7 15
6 14
5 13
4 12
3 11
2 10
1 9
PIN
1
2
3
4
5
6
7
8
DESCRIPTION
+VOUT M3
–VOUT M3
TRIM M3
+VOUT M2
–VOUT M2
TRIM M2
+VOUT M1
–VOUT M1
PIN
9
10
11
12
13
14
15
16
DESCRIPTION
+VOUT M3
–VOUT M3
N/C
+VOUT M2
–VOUT M2
TRIM M1
+VOUT M1
–VOUT M1
MATING CONNECTOR:
16-PIN HOUSING: MOLEX (39-01-2160)
TERMINAL FEM CRIMP 18 – 24AWG: MOLEX (39-00-0039)
USE CRIMP TOOL: MOLEX (11-01-0197)
UG:121
Page 8
Output Connectors for PFC MicroS™
(Part #19-130044. Available for purchase from Vicor.)
Item
Qty
1
3
2
8
**
Description
Vendor #1
Part #
HOUSING 3 POS .100 CTR W/LATCH
MOLEX
50-57-9403
TERMINAL FEM CRIMP 22-24AWG SEL GOLD
MOLEX
16-02-0103
CRIMP TOOL FOR ITEM 2
MOLEX
11-01-0208
2
HOUSING 16 POS .165 CTRS W/LATCH
MOLEX
39-01-2160
4
2
HOUSING 18 POS .165 CTRS W/LATCH
MOLEX
39-01-2180
5
40
TERMINAL FEM CRIMP 18-24AWG SEL GOLD
MOLEX
39-00-0039
CRIMP TOOL FOR ITEM 5
MOLEX
11-01-0197
TERMINAL FEM CRIMP 16AWG SEL GOLD
MOLEX
45750-3211
3
**
6
40
CRIMP TOOL FOR ITEM 6
MOLEX
11-01-0199
7
**
1
HOUSING 5 POS .165 CTRS W/LATCH
MOLEX
39-01-4051
8
5
TERMINAL FEM CRIMP 16AWG SEL GOLD
MOLEX
45750-3211
**
9
10
CRIMP TOOL FOR ITEM 8
MOLEX
11-01-0199
1
HOUSING 12 POS .10 CTRS W/LATCH
MOLEX
50-57-9412
14
TERMINAL FEM CRIMP 24-30AWG SEL GOLD
MOLEX
16-02-0097
CRIMP TOOL FOR ITEM 10
MOLEX
11-01-0209
**
** ITEMS FOR REFERENCE ONLY (NOT INCLUDED IN KIT)
Power Connections
Chassis Input Power Terminals (MBJ1)
Input AC power is applied through connector MBJ1 using Molex mating connector 39-01-4051.
Use 16AWG wire with Molex Socket Pin 39-00-0090 and Crimp Tool 11-01-0199.
A fault-clearing device, such as a fuse or circuit breaker, with a maximum 10A rating at the power
supply input is required for safety agency compliance. It should be sized to handle the start-up inrush
current of 8.5A peak at 115VAC and 17A peak at 230VAC.
Figure 2
Input power terminal MBJ1
CBJ3-12 PIN
PIN 1
MBJ1 A/C INPUT
MATING CONNECTOR: (WESTCOR KIT P/N: 19-130044)
HOUSING: MOLEX (39-01-4051)
SOCKET CRIMP 16 AWG: MOLEX (39-00-0090)
CRIMP TOOL: MOLEX (11-01-0199)
MBJ1 (5 PIN)
L1
Not Connected
L2/N
Not Connected
GND
UG:121
Page 9
Output Power Connections
There are two types of output power terminals available in the PFC MicroS. For connections
using full- or half-size modules, outputs are terminated at 10-32 plated steel bolts. The
positive polarity of the output is the right bolt when viewed from the output end. For
connections using quarter size modules, outputs are terminated using a single 16-pin Molex
connector. Each power output is isolated, so outputs of positive or negative polarity can be
configured through proper selection of the output reference terminal.
In order to minimize parasitic cable inductance and reduce EMI, the output power cables
should be routed in close proximity to one another, and large current loops should be avoided.
To avoid excessive voltage drop, do not undersize power cables, especially for high-current
outputs. Do not bundle input AC wires with the output wires because this can couple output
noise into the input wires which can increase EMI. Excessive cable inductance coupled with
large capacitive loading can introduce instability in switching power supplies. This problem can
be avoided with proper system design. Consult the Vicor Applications Engineering Department
for assistance with applications that use long cable lengths and excessive load capacitance.
Figure 3
Output power connections
1.86
47.29
TRIPLE OUTPUT- Quarter
size modules used
16 15 14 13 12 11 10 9
8 7 6 5 4 3 2 1
DUAL OUTPUT-Half size
S1J1 REMOTE SENSE/OUTPUT CONNECTORS
MATING CONNECTORS: (WESTCOR KIT P/N: 19-130044)
16 PIN HOUSING: MOLEX (39-01-2160)
SOCKET CRIMP 18-24 AWG: MOLEX (39-00-0039)
CRIMP TOOL: MOLEX (11-01-0197)
5.06
S1J1 (16 PIN, TRIPLE MICRO MODULES)
PIN DESCRIPTION
PIN DESCRIPTION
S1J1-1
S1J1-2
S1J1-3
S1J1-4
S1J1-5
S1J1-6
S1J1-7
S1J1-8
+V OUT M3
-V OUT M3
TRIM M3
+V OUT M2
-V OUT M2
TRIM M2
+V OUT M1
-V OUT M1
31J1-9
S1J1-10
S1J1-11
S1J1-12
S1J1-13
S1J1-14
S1J1-15
S1J1-16
SINGLE OUTPUT - Full
size module used
-
M1
10-32 STUDS
S1J1
128.52
M1
+
A3J1
3
2
1
+V OUT M3
-V OUT M3
N/C
+V OUT M2
-V OUT M2
TRIM M1
+V OUT M1
-V OUT M1
M2
-
S1J3
M2
+
- REMOTE SENSE
+ REMOTE SENSE
Trim Pin
M1
-
S1J2
M1
+
S1J1/J3 REMOTE SENSE/TRIM PIN ACCESS CONNECTOR
S1J2 REMOTE SENSE/TRIM PIN ACCESS CONNECTOR
MATING CONNECTOR: (WESTCOR KIT P/N: 19-130044)
HOUSING: MOLEX (50-57-9403)
SOCKET CRIMP 24-30 AWG: MOLEX (16-02-0103)
CRIMP TOOL: MOLEX (11-01-0208)
MATING CONNECTOR: (WESTCOR KIT P/N: 19-130044)
HOUSING: MOLEX (50-57-9403)
SOCKET CRIMP 24-30 AWG: MOLEX (16-02-0103)
CRIMP TOOL: MOLEX (11-01-0208)
UG:121
Page 10
User Interface Connections
Signal Ground (CBJ3-1)
Signal Ground on CBJ3-1 is an isolated secondary ground reference for all CBJ3 interfacing signals. This
is not the same as Earth Ground on input power connector MBJ1.
Bidirectional I/O lines (CBJ3-4 to CBJ3-9)
(Enable/Disable or Module Power Good Status)
Enable/Disable Mode
Enable/Disable mode is the default condition for these I/O lines. In this mode, the control pins allow
the outputs to be sequenced either ON or OFF. To disable a module, the E/D pin should be pulled low
to less than 0.7V with respect to Signal Ground. The E/D lines will typically source 250mA (1mA max.)
under this condition. To enable a module, a E/D pin should be open circuited or driven high to a
logic‑high voltage of 3.5V (40mA typical) or greater not to exceed 5V.
The correspondence between a module and its E/D line as seen from the output end of the power
supply goes from left to right. The PFC MicroS™ power supply is a one-slot box. E/D1, E/D2, and E/D3
are present in this slot. (E/D4, E/D5, E/D6 are NOT used/connected in the PFC MicroS). See Table 1. E/D1
corresponds with VOUT M1, E/D2 corresponds with VOUT M2 and E/D3 corresponds with VOUT M3.
Table 1
Enable/Disable mode
Module
Slot 1
E/D1
E/D2
Maxi
X
Mini
X
X
Micro
X
X
VI-200™
X
VI-J00™
X
E/D3
X
X
Module Power Good Status Mode
The power supply will enter the Power Good Status Mode when logic high (50mA typical) is applied to
Power Good Read (PGR) pin (CBJ3-2). After transitioning to PGR mode the I/O lines (CBJ3-4 to CBJ3-9)
will be outputs and will give a one-time readout of the associated module status. These outputs give an
indication of the status of the modules of the power supply at the time of transition to PGR. A TTL "1"
(>3.5V) on a line indicates the module is ON and functioning properly, and a TTL "0" (0.98 (>75% load)
Transient Burst Immunity
EN61000-4-4, Level 3, Performance Criteria A
Surge Immunity
EN61000-4-5, Level 3, Performance Criteria B
(Common Mode & Normal Mode) (Temporary loss of output power may occur which is self recoverable.)
Dielectric Withstand
Primary to Chassis GND = 2,121VDC
Secondary to Chassis GND = 750VDC
MI Chassis Overvoltage
and Transients
Compliant to Mil-STD 704 and 1399 based on configuration (contact factory)
[a]
[b]
Do Not to exceed an input current of 7.5A.
See Vicor module specifications. A preload may be necessary for modules trimmed down below 90% of normal
output voltage.
UG:121
Page 16
Specifications (Cont.)
Typical at 25°C, nominal line and 75% load, unless otherwise specified.
Output (VI-200™/VI-J00™ Modules)
Parameter
Typ
Max
Units
Accuracy [c]
0.5
1
%
of VNOM
Load/Line Regulation
0.05
0.5
%
LL to HL,
10% to full load
Load/Line Regulation
0.2
0.5
%
LL to HL,
no load to 10%
Temperature Regulation
0.01
0.02
%/°C
Long-Term Drift
0.02
%/K hours
Output Ripple & Noise:
≤10VOUT
>10VOUT
100
1.0
mV
% VOUT
50 – 110
% VOUT
Set-Point
Min
Voltage Trim Range:
VI-200/VI-J00 Slots
Notes
Over rated temperature
20MHz bandwidth
±10% on
10 – 15VOUT
Total Remote-Sense
Compensation
0.5
OVP Set Point [d]
115
125
135
%VOUT
Recycle Power
Current Limit
105
115
125
% of IMAX
Auto Recovery
130
%
Short Circuit Current
Volts
120 (105 [e])
Overtemperature Limiting
Autosense.
See pages 6 & 14
Not available on VI-J00
Maxi, Mini and Micro Series Modules
Parameter
Typ
Max
Units
Accuracy [f]
±0.5
±1
% of VNOM
Load/Line Regulation
±0.08
±0.45 (±7)
% of VNOM
Temperature Regulation
0.002
0.005
Long-Term Drift
0.02
%/K hours
Output Ripple and Noise:
≤10VOUT
>10VOUT
100
1.0
mV
%VOUT
20MHz
bandwidth
10 – 110
% VOUT
Preload may be
required
Set-Point
Min
Voltage Trim Range:
Maxi/Mini/Micro Slots
Total Remote-Sense
Compensation
0.5
OVP Set Point
112
Current Limit
102
%/°C
Volts
115
Overtemperature Limiting
Notes
0 – 100%
–20 to 100°C
Autosense.
See pages 6 & 14 [g]
135
% of VOUT
Recycle power
135
% of IMAX
Auto Recovery
Not available
[a]
Do Not to exceed an input current of 7.5A.
See Vicor module specifications. A preload may be necessary for modules trimmed down below 90% of normal
output voltage.
[c] For special and adjustable voltages, maximum set-point accuracy is 2% of V
NOM.
[d] 131% nominal for booster modules. No OVP for VI-J00.
[e] VI-J00 modules only.
[f] For special, adjustable voltages and 48V
DC outputs, maximum set-point accuracy is 2% of VNOM.
Note: See individual module data sheets for specific module specifications.
[g] Micro modules do not support remote sense.
[b]
UG:121
Page 17
Specifications (Cont.)
Typical at 25°C, nominal line and 75% load, unless otherwise specified.
Environmental
Storage Temperature
–40 to +85°C
Operating Temperature
Full Power
Half Power
–20 to +45°C (–40 to +45°C option w/MI chassis)
–20 to +65°C (–40 to +60°C option w/MI chassis)
Altitude
Derate 2.6% total output power for each 1,000ft to a maximum operating
altitude of 15,000ft. Non-operating storage maximum altitude is 40K.
Shock and Vibration
Mil-STD 810 (MI rugged chassis only)
Humidity
0 – 95% non condensing
Product Weight
3.1lbs [1,4kg]
Dimensions
1.86 x 5.06 x 7.95in [47,3 x 128,5 x 201,9mm]
Warranty [h]
2 years limited warranty.
See vicorpower.com for complete warranty statement.
[a]
Do Not to exceed an input current of 7.5A
See Vicor module specifications. A preload may be necessary for modules trimmed down below 90% of normal
output voltage.
[c] For special and adjustable voltages, maximum setpoint accuracy is 2% of V
NOM.
[d] 131% nominal for booster modules. No OVP for VI-J00.
[e] VI-J00 modules only.
[f] For special, adjustable voltages and 48V
DC outputs, maximum set-point accuracy is 2% of VNOM.
Note: See individual module data sheets for specific module specifications.
[g] Micro modules do not support remote sense.
[h] Opening, repairing or modifying the unit will void the warranty. If you have any problem with the power supply,
please contact Customer Service at 1-800-735-6200. If the unit needs to be returned for inspection/analysis, an
RMA number will be issued. All units must have a RMA number prior to return.
[b]
UG:121
Page 18
Output Power De-Rating
Figure 9
PFC MicroS™ output power vs.
AC input voltage
PFC MicroS Output Power vs. AC Input Voltage
Output Power (Watts)
600
Power Limit Exceeded
550
500
Safe Operating Area
8.33 Watts/Volt
450
400
350
85 95 105 115 125 135 145 155 165 175 185 195 205 215 225 235 245 255 265
Input Voltage (VAC)
Figure 10
PFC MicroS output power vs.
DC input voltage
PFC MicroS Output Power vs. DC Input Voltage
Output Power (Watts)
600
Power Limit Exceeded
550
500
Safe Operating Area
450
400
350
100
120
140
160
180
200
220
240
260
280
300
Input Voltage (VDC)
UG:121
Page 19
Figure 11
PFC MicroS™ output power
temperature de-rating
PFC MicroS: Output Power Temperature Derating
600
Output (Watts)
500
400
300
200
100
0
0
45
65
Temperature (degrees)
1. For all module configurations. The PFC MicroS or an individual output may be limited by module
power limitations e.g., 5V Maxi module is 400W maximum. One cannot exceed the output power
rating of the PFC MicroS regardless of the module capability.
2. Also see output power vs. input voltage charts on page 19.
UG:121
Page 20
Current Share Boards – Optional Feature
"Current sharing" also known as Load Sharing, is the ability to divide the output current evenly across
all active power supplies. This greatly reduces stresses on each power supply and allows them to
run cooler, resulting in higher reliability. Standard "current sharing" techniques typically utilize shunt
resistors or Hall-Effect devices to measure the current from each power supply. Power shunt resistors
continually dissipate power and require cooling especially when dealing with high output currents of
>100A. Hall-Effect devices measure magnetic fields generated by current flowing through a conductor
and, although they dissipate no power, they tend to be large and expensive.
First developed by Vicor Engineering for paralleling MegaPAC™ supplies, the box-to-box Current
Share Board or CSB allows two or more Vicor power supplies to current share by utilizing the inherent
voltage drop produced in the negative output return cable. This eliminates the need for additional shunt
resistors or expensive Hall-Effect devices and provides a simple five-wire connection method to achieve
a ±1mV accuracy between the Negative Output power rails. This accuracy translates to a 1% current
sharing if there is a total of 100mV conductional voltage drop in the negative return path.
Constructed as a current source to drive the Trim pin of a Vicor module, the design uses an accurate
comparator circuit to monitor the power returns. In addition, the circuit is unidirectional and can only
trim an output voltage up. The benefit is that only the supply that is supporting less current is adjusted
up. This action balances the currents to the load by matching the output voltages of the supplies. In
the case of one supply failing, the circuit will attempt to trim the failed supply only. This will leave the
remaining functional supply alone to provide power to the load at its nominal voltage. Thus the circuit
also offers simple redundancy. In addition, because CSB functions as a current source, the Trim outputs
(T1 and T2) of the CSB can be placed in parallel to create a summing node. This allows current sharing
between more than two supplies by paralleling the T2 output of one CSB circuit with the T1 output
of the next CSB.
Please Note: The CSB is not intended for use in hot-swap applications.
Figure 12
CSB interconnect example
D*
+OUT
Supply # 1
5V @ 120A
+V OUT
+S
TRIM
Yellow
–S
–OUT
T1
–V1
T2
–V2
Brown
D*
+OUT
Supply # 2
5V@120A
CSB02
+S
TRIM
–S
Power
Red
–V OUT
White
Black
–OUT
UG:121
Page 21
Current Share Boards – Optional Feature (Cont.)
Requirements:
1. For proper operation, the power supplies being paralleled should be enabled at the same time.
2. –OUT conductors must be of equal length and wire gauge. Separate –OUT conductors must be
used from each supply to the load, or the use of a "Y" connection to a common point must be
used as shown in Figure 12. Each leg of the "Y" must have a minimum of a few millivolts of drop in
order for proper operation. 50 – 100mV of drop will provide from 5 to 1% accuracy.
3. –V1 and –V2 for all box-to-box circuits must be connected directly at the negative output power
studs or terminals to achieve accurate current sharing.
4. D* can be added if redundancy is needed. If redundancy is not required, D* can be replaced with
direct wire connections.
5. When using D*, the power input should be connected on the cathode side of the paralleling diodes
as shown above.
6. Terminate sense leads either locally or remotely as shown in Figure 12.
7. For paralleling more than two supplies, consult factory for assistance.
UG:121
Page 22
Current Share Boards – Optional Feature (Cont.)
0.13" (3.3mm) Dia Non
Plated thru hole 4
places
1.74"
(44.2mm)
Pin
1
2
3
4
5
6
2
1
4
3
6
5
Molex CT43045F surface mountable
connector. .390" height above board.
1.500"
(38.1mm)
J1 Pinout
Description
P ow e r
T1
-V1
T2
-V2
No Connection
0.12"
(3.0mm)
0.12"
(3.0mm)
0.900"
(22.9mm)
1.14"
(29.0mm)
Figure 13. Mechanical Drawing
24.0" +/- 1.0"
Red, 22 AWG
P1
Po w e r
Yellow, 22 AWG
T1
Brown, 22 AWG
-V1
White, 22 AWG
T2
Black, 22 AWG
-V2
Figure 14. Cable Drawing
Specifications:
1. Power: 2 – 50VDC at 5mA maximum.
2. Accuracy: ±1mV between –VOUT connections.
3. Output current when not trimming up: ±1µA (VI-200/J00), ±5µA (Maxi/Mini/Micro).
4. Use four non-plated through holes with standoffs for mounting.
5. CSB01 MUST be used for current sharing VI-200™/VI-J00™ converters.
6. CSB02 MUST be used for current sharing Maxi/Mini/Micro converters.
PLEASE NOTE: THE CSB IS NOT INTENDED FOR HOT-SWAP APPLICATIONS.
Contact your Regional Applications Engineer at 1-800-927-9474 for additional information.
UG:121
Page 23
For more information about this or other Vicor products, or for assistance with component-based
power system design, contact the Vicor office nearest you. Vicor comprehensive line of power
solutions includes modular, high-density DC-DC converters and accessory components, configurable
power supplies, and custom power systems. Vicor designs and builds configurable power supplies
incorporating Vicor high-density DC-DC converters and accessory components.
This product line includes:
LoPAC™ FAMILY:
nn
PFC MicroS™
nn
PFC Micro™
nn
PFC Mini™
MegaPAC™ FAMILY:
nn
PFC MegaPAC™
nn
4kW MegaPAC™
nn
PFC MegaPAC™ (High Power)
nn
PFC MegaPAC-EL™
nn
Mini MegaPAC™
nn
ConverterPACs™
Others:
nn
FlatPAC-EN™
Rugged COTS versions (MI) are available for the PFC Micro, PFC MicroS, PFC Mini, PFC MegaPAC.
UG:121
Page 24
Limitation of Warranties
Information in this document is believed to be accurate and reliable. HOWEVER, THIS INFORMATION
IS PROVIDED “AS IS” AND WITHOUT ANY WARRANTIES, EXPRESSED OR IMPLIED, AS TO THE
ACCURACY OR COMPLETENESS OF SUCH INFORMATION. VICOR SHALL HAVE NO LIABILITY FOR THE
CONSEQUENCES OF USE OF SUCH INFORMATION. IN NO EVENT SHALL VICOR BE LIABLE FOR ANY
INDIRECT, INCIDENTAL, PUNITIVE, SPECIAL OR CONSEQUENTIAL DAMAGES (INCLUDING, WITHOUT
LIMITATION, LOST PROFITS OR SAVINGS, BUSINESS INTERRUPTION, COSTS RELATED TO THE REMOVAL
OR REPLACEMENT OF ANY PRODUCTS OR REWORK CHARGES).
Vicor reserves the right to make changes to information published in this document, at any time
and without notice. You should verify that this document and information is current. This document
supersedes and replaces all prior versions of this publication.
All guidance and content herein are for illustrative purposes only. Vicor makes no representation or
warranty that the products and/or services described herein will be suitable for the specified use without
further testing or modification. You are responsible for the design and operation of your applications
and products using Vicor products, and Vicor accepts no liability for any assistance with applications or
customer product design. It is your sole responsibility to determine whether the Vicor product is suitable
and fit for your applications and products, and to implement adequate design, testing and operating
safeguards for your planned application(s) and use(s).
VICOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED OR WARRANTED FOR USE IN LIFE SUPPORT,
LIFE-CRITICAL OR SAFETY-CRITICAL SYSTEMS OR EQUIPMENT. VICOR PRODUCTS ARE NOT CERTIFIED
TO MEET ISO 13485 FOR USE IN MEDICAL EQUIPMENT NOR ISO/TS16949 FOR USE IN AUTOMOTIVE
APPLICATIONS OR OTHER SIMILAR MEDICAL AND AUTOMOTIVE STANDARDS. VICOR DISCLAIMS
ANY AND ALL LIABILITY FOR INCLUSION AND/OR USE OF VICOR PRODUCTS IN SUCH EQUIPMENT OR
APPLICATIONS AND THEREFORE SUCH INCLUSION AND/OR USE IS AT YOUR OWN RISK.
Terms of Sale
The purchase and sale of Vicor products is subject to the Vicor Corporation Terms and Conditions of
Sale which are available at: (http://www.vicorpower.com/termsconditionswarranty)
Export Control
This document as well as the item(s) described herein may be subject to export control regulations.
Export may require a prior authorization from U.S. export authorities.
Contact Us: http://www.vicorpower.com/contact-us
Vicor Corporation
25 Frontage Road
Andover, MA, USA 01810
Tel: 800-735-6200
Fax: 978-475-6715
www.vicorpower.com
email
Customer Service: custserv@vicorpower.com
Technical Support: apps@vicorpower.com
©2019 Vicor Corporation. All rights reserved. The Vicor name is a registered trademark of Vicor Corporation.
All other trademarks, product names, logos and brands are property of their respective owners.
01/19
P/N 03-00049
Rev 1.2
Page 25
工商网监
湘ICP备2023018690号
