PSS249-7 (Power-One)
9...25 A Switching Regulators

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PSS, PSK Series
9...25 A Switching Regulators
Input voltage up to 144 V DC
Single output of 3.3...48 V DC
No input to output isolation
• Efficiency up to 97%
• Low input-output differential voltage
• No derating over temperature
Selection chart
Output
Uo nom Io nom
[V DC] [A]
3.3 25
5.1 12
5.1 14
5.1 16
5.1 18
5.1 20
5.1 25
12 (15)
12 (15)
12 (15)
12 (15)
12 (15)
12 (15)
12 (15)
9
12
12
14
16
18
20
24 9
24 12
24 12
24 14
24 16
24 18
24 20
36 9
36 12
36 12
36 16
36 20
48 9
48 12
Input voltage
Ui
[V DC]
8...40
8...80
8...40
8...80
8...40
8...80
8...40
18...144
15...80
18...144
16...40
15...80
16...40
15...80
31...144
29...80
31...144
29...60
29...80
29...60
29...80
44...144
42...80
44...144
42...80
42...80
58...144
58...144
Rated power
Po tot
[W]
82.5
61.2
71.4
81.6
91.8
102
127.5
108 (135)
144 (180)
144 (180)
168 (210)
192 (240)
216 (270)
240 (300)
216
288
288
336
384
432
480
324
432
432
576
720
432
576
Efficiency
htyp
[%]
82
79
83
79
82
79
82
91
91
91
90
90
90
90
94
94
94
94
94
94
94
96
96
96
95
95
97
97
Type
PSK 3E25-7
PSS 5A12-7
PSS 5A14-2
PSK 5A16-7
PSK 5A18-2
PSK 5A20-7
PSK 5A25-7
PSS 129-7
PSS 1212-7
PSK 1212-7
PSS 1214-2
PSK 1216-7
PSK 1218-2
PSK 1220-7
PSS 249-7
PSS 2412-7
PSK 2412-7
PSS 2414-2
PSK 2416-7
PSK 2418-2
PSK 2420-7
PSS 369-7
PSS 3612-7
PSK 3612-7
PSK 3616-7
PSK 3620-7
PSS 489-7
PSK 4812-7
Options
-9, E, P, B, B1
-9, E, P, C, B, B1
B, B1
-9, E, P, C, B, B1
B, B1
-9, E, P, C, B, B1
-9, E, P, C, B, B1
-9, E, P, C, B, B1
-9, E, P, C, B, B1
-9, E, P, C, B, B1
B, B1
-9, E, P, C, B, B1
B, B1
-9, E, P, C, B, B1
-9, E, P, C, B, B1
-9, E, P, C, B, B1
-9, E, P, C, B, B1
B, B1
-9, E, P, C, B, B1
B, B1
-9, E, P, C, B, B1
-9, E, P, C, B, B1
-9, E, P, C, B, B1
-9, E, P, C, B, B1
-9, E, P, C, B, B1
-9, E, P, C, B, B1
-9, E, P, C, B, B1
-9, E, P, C, B, B1
284
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Edition 5/05.2001


PSS249-7 (Power-One)
9...25 A Switching Regulators

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Cassette Style
PSS, PSK Series
Input
Input voltage
No load input current
refer to selection chart
50 mA
Output
Efficiency
Output voltage setting accuracy
Output voltage switching noise
Line regulation
Load regulation
Minimum load
Current limitation
Operation in parallel
Hold-up time
Ui nom, Io nom
Ui nom, Io nom
IEC/EN 61204, total
Ui min...Ui max, Io nom
Ui nom, 0...Io nom
not required
rectangular U/I characteristic
current sharing feature (CS)
Ui nom, Io nom, with ext. diode in input line, PSS
up to 97%
±0.6% Uo nom
typ. 0.2%
typ. ±0.2%
typ. 0.15%
0A
typ. 110% Io nom
up to 7 ms
Protection
Input reverse polarity
Input undervoltage lockout
Input transient protection
Output
Output overvoltage
Overtemperature
built-in fuse
suppressor diode
no-load, overload and short circuit proof
suppressor diode in each output
switch-off with auto restart
typ. 80% Ui min
typ. 150 % Uo nom
TC typ. 100°C
Control
Inhibit
R control
Output voltage indication
Sense lines
Test sockets
TTL input, output enabled if left open
output voltage adjustment, PSS
0...108 % Uo nom
LED
compensation of voltage drop across the load lines, PSS
test sockets for check of output voltage
Safety
Approvals
Protection degree
Electric strength test voltage
EN 60950, UL 1950, CSA C22.2 No. 950
units without options
I/case and O/case
IP 20/30
500/750/1500 V DC
EMC
Electrostatic discharge
Electromagnetic field
Electr. fast transients/bursts
Surge
Conducted disturbances
Electromagnetic emissions
IEC/EN 61000-4-2
IEC/EN 61000-4-3
IEC/EN 61000-4-4
IEC/EN 61000-4-5
IEC/EN 61000-4-6
CISPR 22/EN 55022
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Edition 5/05.2001
285


PSS249-7 (Power-One)
9...25 A Switching Regulators

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PSS, PSK Series
9...25 A Switching Regulators
Environmental
Operating ambient temperature
Operating case temperature TC
Storage temperature
Operating ambient temperature
Operating case temperature TC
Storage temperature
Damp heat
Vibration, sinusoidal
Shock
Bump
Random vibration
MTBF
-2, Ui nom, Io nom, convection cooled
-2, Ui nom, Io nom
-2, non operational
-7, Ui nom, Io nom, convection cooled
-7, Ui nom, Io nom
-7, non operational
IEC/EN 60068-2-3
IEC/EN 60068-2-6
IEC/EN 60068-2-27
IEC/EN 60068-2-29
IEC/EN 60068-2-64
MIL-HDBK-217
Options
Large and small cooling plate instead of standard heatsink
Extended temperature range
40...71°C, ambient, operating
Electronic inrush current limitation
Output voltage adjustment
±8% Uo nom, excludes feature R and vice versa
Thyristor crowbar on output
Accessories
Front panels 19" (Schroff/Intermas), 12 und 16 TE
Mating H15 or H15 S4 connectors with screw, solder, fast-on or press-fit terminals
Connector retention facilities
Adapter kit for DIN-rail
10...50 °C
10...80 °C
25...100 °C
25...71 °C
25...95 °C
40...100 °C
B/B1
-9
E
P
C
Pin allocation
Electrical Determination
Output voltage (positive)
Output voltage (positive)
Output voltage (negative)
Output voltage (negative)
Crowbar trigger input (option C)
Inhibit input
R-input (output voltage programming) 1
Sense line (negative)
Sense line (positive)
Current sharing control input
Protective ground (leading pin)
Input voltage (negative)
Input voltage (negative)
Input voltage (positive)
Input voltage (positive)
Type H15
Pin No.
Ident.
4 Vo+
6 Vo+
8 Go
10 Go
12 C
14 i
16 R
18 S
20 S+
22 CS
24
26 Gi
28 Gi
30 Vi+
32 Vi+
Type H15 S4
Pin No.
Ident.
4/6 Vo+
8/10
12
14
16
18
20
22
24
26/28
Go
C
i
R
S
S+
CS
Gi
30/32
Vi+
286
www.power-one.ch
Edition 5/05.2001


PSS249-7 (Power-One)
9...25 A Switching Regulators

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Click to Download PDF File for PC

Cassette Style
PSS, PSK Series
Mechanical data
Tolerances ±0.3 mm (0.012") unless otherwise indicated.
PSK
159 (6.25")
4.5 (0.18")
European
Projection
7 TE
9 TE
Measuring point of
case temperature TC
50 (1.97")
171.93 (6.77") (DIN 41494)
168.5 (6.63")
S09029
LED OK
Potentiometer
(option P)
Test sockets
80 (3.15")
Pin allocation
S10010
Connector type H15
30 26 22 18 14 10 6
32 28 24 20 16 12 8 4
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Edition 5/05.2001
S10010
Connector type H15 S4
26/28 22 18 14 10/8
32/30 24 20 16 12 4/6
H15 S4 connectors for 20 and 25 A types
287


PSS249-7 (Power-One)
9...25 A Switching Regulators

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PSS, PSK Series
PSS
9...25 A Switching Regulators
171.93 (DIN 41494) (6.77")
M4
Measuring point of
case temperature TC
7 TE
5 TE
LED OK
Potentiometer
(option P)
Test sockets
152 (5.98")
168.5 (6.63")
S09028
60 (2.36")
288
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Edition 5/05.2001




PSS249-7.pdf
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