KEPCO HSF-PFC 50W Series Instruction Manual

I N S T R U C T I O N M A N U A L
KEPCO
I — INTRODUCTION
The Kepco HSF-PFC 50 Watt series hot swappable, high
frequency switching, plug-in power supplies with built in
power factor correction employ forward conversion and are
designed to operate in a fault tolerant power system with
either a-c or d-c input. A thermistor soft-start circuit limits
start-up surge. A built-in forced current share circuit and
OR-ing diodes allow configuration for hot-swap and paral-
lel-redundant N+1 operation.
These power supplies are designed to be installed in
Kepco's RA 19-(X)B Rack Adapters (Figure 2). RA 19-6B
accepts up to six 150W units, RA 19-7B accepts up to three
150W units, and up to four 50W or 100W units and RA 19-
8B accepts up to eight 50W or 100W units. The applicable
RA 19-(X)B Operator Manual can be downloaded from the
Kepco web site at:
www.kepcopower.com/support/opmanls.htm#ra19-xb
All input/output connections are through a 24 pin connector
that plugs into the rack adapter. All external connections
are made through the rack adapter.
MODEL
OUTPUT VOLTS, d-c (NOMINAL)
ADJUSTMENT RANGE
OUTPUT CURRENT (NOMINAL)
CURRENT LIMIT
OUTPUT POWER (MAX.)
SHORT CIRCUIT CURRENT
RIPPLE AND NOISE
(mV p-p)
0-40°C, 10-100%
LOAD
OVERVOLTAGE SETTING
(25 °C, NOM. INPUT)
SENSE RESISTOR (RS) value
(1) Derates same as Output Power.
(2) Current Limit is rectangular. After the overload is removed,
output is automatically restored.
(3) See power derating curve, Figure 3.
(4) 28V Model available with T, C, X and Y Options only.
KEPCO, INC. 131-38 SANFORD AVENUE
"
©2010, KEPCO, INC
Data subject to change without notice
An ISO 9001 Company.
KEPCO SINGLE OUTPUT 50 WATT
HOT SWAP PLUG-IN POWER SUPPLIES
TABLE 1. OUTPUT RATINGS AND SPECIFICATIONS, HSF-PFC 50W SERIES
HSF
3.3-10PFC
3.3V
2.8 - 3.4V
(1)
10A
(2)
13.1A min
(3)
33W
(2)
16A
switching (typ) 80
spike noise
120
(d-c—50MHz)
3.9 - 5.1V
(5)
0.01 Ohm
" FLUSHING, NY. 11355 U.S.A. " TEL (718) 461-7000 "
http://www.kepcopower.com "
Six models may be selected for outputs of 3.3, 5, 12, 15,
24, or 48V (see Table 1).
When the input is cut off, the output is maintained for 15
milliseconds minimum. If the power supply shuts down due
to an output overvoltage condition, it is then necessary to
wait 30 seconds minimum before turning the unit on again.
EMI filtering is designed to meet FCC Class B rating and
VDE 0871 Class B rating. Table 1 lists specifications for
each model of the HSF-PFC 50 Watt Series. See "SPECI-
FICATIONS" on page 4 for common specifications.
OPTIONS. Options are identified by suffix: T (-PFCT)
offers improved efficiency, less weight, and the addition of
a 28V, 50W model; C (-PFCC) offers current monitoring
via an integral current sensing resistor (includes option T),
X (-PFCX) offers remote on/off (includes option T); and Y
(-PFCY) includes options C, X and T.
HSF HSF
5-10PFC 12-4.3PFC 15-3.5PFC
5V 12V
4.3 - 5.3V 11.4 - 12.6V 13.5 - 16.2V
10A 4.3A
10.5A min 4.5A min 3.6A min
50W 51.6W
12.6A 5.6A
80 100
120 150
5.7 - 6.4V 13.5 - 15.5V 16.8 - 18.8V
0.01 Ohm 0.02 Ohm 0.03 Ohm
(5) Sense resistor Included with C and Y models only.
(6) Peak current and thermal protection applicable to some 24V models:
standard (no options) and C option only.See Figure 1 for peak power
requirements.
(7) For 24V Model,s T, X and Y options only.
email: hq@kepcopower.com
228-1532 REV 9
HSF-PFC
50W SERIES
HSF HSF
24-2.2PFC 28-1.8PFC
15V 24V
22.5 - 25.5V 22.4 - 30.2V
2.2A
3.5A
(6)
(3.2A Peak)
3.3A min
1.9A min
(7)
(2.3A min)
52.5W 52.8W
5.4A 6.2A
100 100
150 150
26.8 - 30.3V 32.0 - 35.0V
0.05 Ohm 0.05 Ohm
FAX (718) 767-1102
HSF HSF
(4)
48-1.1PFC
28V 48V
44.0 - 52.0V
1.8A 1.1A
1.15A min
50.4W 52.8W
1.7A 2.4A
150 130
200 200
54.8 - 59.9V
0.1 Ohm
1