PFM™ in a VIA Package
AC-DC Converter
PFM4914xB6M24D0yzz
®
S
C
US
C
NRTL
US
Isolated AC-DC Converter with PFC
Features & Benefits
•
Universal input (85 to 264V
AC
)
•
24V
OUT
, regulated, isolated
•
400W maximum power
•
High efficiency
•
Built-in EMI filtering
•
Chassis mount or board mount packaging options
•
Always-on, self-protecting converter control architecture
•
SELV Output
•
Two temperature grades including operation to -40°C
•
Robust package
•
Versatile thermal management
•
Safe and reliable secondary-side energy storage
•
High MTBF
•
127W/in
3
power density
•
4914 package
•
External rectification and transient protection required
V
IN
= 85 – 264V
V
OUT
= 24V
Product Ratings
P
OUT
= up to 400W
I
OUT
= 16.67A
Product Description
The PFM in a VIA package is a highly advanced 400W AC-DC
converter operating from a rectified universal AC input which
delivers an isolated and regulated Safety Extra Low Voltage (SELV)
24V secondary output.
This unique, ultra-low profile module incorporates AC-DC
conversion, integrated filtering and transient surge protection in a
chassis mount or PCB mount form factor.
The PFM in a VIA package enables a versatile two-sided thermal
strategy which greatly simplifies thermal design challenges.
When combined with downstream Vicor DC-DC conversion
components and regulators, the PFM in a VIA package allows the
Power Design Engineer to employ a simple, low-profile design
which will differentiate his end-system without compromising on
cost or performance metrics.
Typical Applications
•
Small cell base stations
•
Telecom switching equipment
•
LED lighting
•
Industrial power systems
Size:
4.91 x 1.40 x .37in
124.8 x 35.5 x 9.3mm
Part Ordering Information
Product
Function
PFM
PFM =
Power Factor
Module
Package
Length
49
Length in
Inches x 10
Package
Width
14
Width in
Inches x 10
Package
Type
x
B = Board VIA
V = Chassis VIA
Input
Voltage
B6
Range
Ratio
M
Output
Voltage
(Range)
24
Max
Output
Current
D0
Product Grade
Option Field
y
C = -20 to 100°C
T = -40 to 100°C
z
z
Internal Reference
00 = Chassis/Always On
04 = Short Pin/Always On
08 = Long Pin/Always On
PFM
™
in a VIA Package
Page 1 of 25
Rev 1.4
08/2017
PFM4914xB6M24D0yzz
Typical PCB Mount Applications
J
1
D
1
85 -
264V
AC
+IN
+OUT
24V
2 x Cool-Power
®
ZVS Buck
+
_ 24V 10A
+
C
2
+
C
3
Cool-Power
®
ZVS Buck
~
Filter
C
4
MOV
+
–
-IN
4914 VIA PFM
-OUT
+
C
1
+
_ 3.3V 10A
~
+
_ 1.8V 8A
The PCB terminal option allows mounting on an industry standard printed circuit board, with two different pin lengths. Vicor offers a
variety of downstream DC-DC converters driven by the 24V output of the PFM in a VIA package. The 24V output is usable directly by loads
that are tolerant of the PFC line ripple, such as fans, motors, relays, and some types of lighting. Use downstream DC-DC Point of Load
converters where more precise regulation is required.
Parts List for Typical PCB Mount Applications
J1
F1 (mount in J1)
D1
Delta
06AR2 EMI Filter Entry Module, C14 6A 250V 5 x 20mm fuseholder
Littelfuse
0216008.MXP 8A 250V
AC
5 x 20mm holder
Fairchild
GBPC1210W 12A 1000V PTH
Nichicon
UVR1V153MRD 15,000µF 35V 4.3A 25 x 50mm bent 90°, x 3pcs
or
C1, C2, (C3)
CDE
380LX153M035A022 15,000µF 35V 5.6A 35 x 30mm snap in, x 3pcs
or
Sic Safco
Cubisic LP A712062 22,000µF 35V 5.8A 45 x 75 x 12mm rectangular, x 2pcs
or
CDE
MLPE1566 22,000uF 35V 8.4A 45 x 76 x 12.5mm x 2pcs.
C4
MOV
Panasonic
ECQ-U2A474ML 0.47µF 275V
Littelfuse
TMOV20RP300E VARISTOR 10kA 300V 250 J 20mm
PFM
™
in a VIA Package
Page 2 of 25
Rev 1.4
08/2017
PFM4914xB6M24D0yzz
Typical Chassis Mount Applications
J
1
D
1
85 -
264V
AC
+IN
+OUT
24V
Fan
~
Filter
C
4
MOV
+
4914 VIA PFM
~
–
-IN
-OUT
C
1
C
2
C
3
8
8
Relays
16
Dispensors
Controller
Coin Box
The PFM in a VIA package is available in Chassis Mount option, saving the cost of a PCB and allowing access to both sides of the power
supply for cooling. The parts list below minimizes the number of interconnects required between necessary components, and selects
components with terminals traditionally used for point to point chassis wiring.
Parts List for Typical Chassis Mount Applications
J1
F1 (mount in J1)
D1
C1, C2, C3
C1
C4
MOV
Delta
06AR2 EMI Filter Entry Module, C14 6A 250V 5 x 20mm fuseholder
Littelfuse
0216008.MXP 8A 250V
AC
5 x 20mm holder
Fairchild
GBPC1210FS 12A 1000V 0.25” QC TERMINAL
Nichicon
LNT1V153MSE 15,000µF 35V 5.1A 35 x 83mm screw terminal
or
Kemet
ALS30A473KE040 47,000µF 40V 14.2A 51 x 84mm screw terminal
Panasonic
ECQ-U2A474ML 0.47µF 275V
Littelfuse
TMOV20RP300E VARISTOR 10kA 300V 250 J 20mm
PFM
™
in a VIA Package
Page 3 of 25
Rev 1.4
08/2017
PFM4914xB6M24D0yzz
Pin Configuration
TOP VIEW
+IN
1
3
+OUT
–IN
2
4
–OUT
4914 VIA PFM - Chassis Mount - Terminals Up
TOP VIEW
–IN
2
4
–OUT
+IN
1
3
+OUT
4914 VIA PFM - PCB Mount - Pins Down
Please note that these Pin drawings are not to scale.
Pin Descriptions
Pin Number
1
2
3
4
Signal Name
+IN
–IN
+OUT
–OUT
Type
INPUT POWER
Positive input power terminal
Function
INPUT POWER RETURN Negative input power terminal
OUTPUT POWER
OUTPUT POWER
RETURN
Positive output power terminal
Negative output power terminal
PFM
™
in a VIA Package
Page 4 of 25
Rev 1.4
08/2017
PFM4914xB6M24D0yzz
Absolute Maximum Ratings
The absolute maximum ratings below are stress ratings only. Operation at or beyond these maximum ratings can cause permanent damage to the device.
Parameter
Input Voltage +IN to –IN
Input Voltage (+IN to –IN)
Output Voltage (+OUT to –OUT)
Output Current
Screw Torque
Operating Junction Temperature
Storage Temperature
Dielectric Withstand *
Input-Case
Input-Output
Output-Case
4 mounting, 2 input, 2 output
T-Grade
T-Grade
See note below
Basic insulation
Reinforced insulation
(Internal ChiP tested at 4242V
DC
prior to assembly.)
Functional insulation
2121
2121
707
V
DC
V
DC
V
DC
-40
-65
1ms max
Continuous, Rectified
Comments
Min
0
0
-0.5
0.0
Max
600
275
29
24.7
4 (0.45)
125
125
Unit
V
PK
V
RMS
V
DC
A
N.m (in.lbs)
°C
°C
* Please see Dielectric Withstand section. See page 19.
20.00
500
Output Current (A)
12.00
8.00
4.00
0.00
-60
-40
-20
0
20
Current
300
200
100
0
40
60
Power
80
100
Case Temperature (°C)
Safe Operating Area
PFM
™
in a VIA Package
Page 5 of 25
Rev 1.4
08/2017
Output Power (W)
16.00
400
模拟电子
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