PFM in a VIA Package
AC-DC Converter
PFM4414xB6M48D0yzz
S
CUNRTL S
C US
Isolated AC-DC Converter with PFC
Features & Benefits
Product Ratings
Universal input (85 264V )
AC V = 85 264V P = up to 400W
IN OUT
48V , regulated, isolated SELV
OUT
V = 48V I = 8.33A
OUT OUT
92% typical efficiency
Product Description
Built-in EMI filtering
Chassis-mount or board-mount packaging options
The PFM in a VIA Package is a highly advanced 400W AC-DC
converter operating from a rectified universal AC input which
Always-on, self-protecting converter control architecture
delivers an isolated and regulated Safety Extra Low Voltage (SELV)
48V secondary output.
SELV Output
This unique, ultra-low-profile module incorporates AC-DC
Two temperature grades including operation to 40C
conversion, integrated filtering and transient surge protection in a
VIA Package
chassis-mount or PCB-mount form factor.
Robust Mechanical Design
The PFM enables a versatile two-sided thermal strategy which
greatly simplifies thermal design challenges.
Versatile thermal management capability
When combined with downstream Vicor DC-DC conversion
Safe and reliable secondary-side energy storage
components and regulators, the PFM allows the Power Design
High MTBF
Engineer to employ a simple, low-profile design which will
differentiate his end-system without compromising on cost or
3
140W/in power density
performance metrics.
4414 package
AC Input Front-End Module provides external rectification
and transient protection (AIM sold separately)
Typical Applications
Small-cell base stations
Telecom switching equipment
LED lighting
Shown with required
Industrial power systems companion component,
AIM
(see pages 2-3)
Size:
4.35 x 1.40 x 0.37in
[110.55 x 35.54 x 9.40mm]
Part Ordering Information
Output Max
Product Package Package Package Input Range
Voltage Output Product Grade Option Field
Function Length Width Type Voltage Ratio
(Range) Power
PFM 44 14 x B6 M 48 D0 y z z
PFM = 00 = Chassis/Always On
Length in Width in B = Board VIA C = 20 to 100C
Power Factor Internal Reference 04 = Short Pin/Always On
Inches x 10 Inches x 10 V = Chassis VIA T = 40 to 100C
Module 08 = Long Pin/Always On
PFM in a VIA Package Rev 1.2
Page 1 of 24 08/2018PFM4414xB6M48D0yzz
Typical PCB-Mount Applications
M M
2
1
J
1
F
1
48 V +
L +OUT +IN +OUT 48 V 5 A
_
+
2 x Cool-Power
3.3 V 10 A
_
ZVS Buck
85 - ++ +
MOV
AIM1714 PFM4414
264V
AC
C C C
1 2 3
+
Cool-Power
1.8 V 8 A
_
ZVS Buck
N OUT IN OUT
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 48V output of the PFM in a VIA package. The 48V 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 Qualtek 703W IEC 320-C14 Power Inlet
F1 Littelfuse 0216008.MXP 8A 250V 5 x 20mm holder
AC
M1 Vicor AIM AIM1714BB6MC7D5yzz
M2 Vicor PFM PFM4414BB6M48D0yzz
Nichicon UVR1J472MRD 4700F 63V 3.4A 22 x 50mm bent 90 x 2 pcs
or
CDE 380LX472M063K022 4700F 63V 4.9A 30 x 30mm snap x 2 pcs
or
C1
Sic Safco Cubisic LP A712121 10,000F 63V 6.4A 45 x 75 x 12mm rectangular
or
CDE MLPGE1571 6800F 63V 5.2A 45 x 50 x 12.5mm, 1 or 2pcs.
MOV Littelfuse TMOV20RP300E VARISTOR 10kA 300V 250 J 20mm
PFM in a VIA Package Rev 1.2
Page 2 of 24 08/2018
Inlet