284
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Edition 5/05.2001
Efficiency up to 97%
Low input-output differential voltage
No derating over temperature
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
Selection chart
Output
Input voltage
Rated power
Efficiency
Type
Options
U
o nom
I
o nom
U
i
P
o tot
h
typ
[V DC]
[A]
[V DC]
[W]
[%]
3.3
25
8...40
82.5
82
PSK 3E25-7
-9, E, P, B, B1
5.1
12
8...80
61.2
79
PSS 5A12-7
-9, E, P, C, B, B1
5.1
14
8...40
71.4
83
PSS 5A14-2
B, B1
5.1
16
8...80
81.6
79
PSK 5A16-7
-9, E, P, C, B, B1
5.1
18
8...40
91.8
82
PSK 5A18-2
B, B1
5.1
20
8...80
102
79
PSK 5A20-7
-9, E, P, C, B, B1
5.1
25
8...40
127.5
82
PSK 5A25-7
-9, E, P, C, B, B1
12 (15)
9
18...144
108 (135)
91
PSS 129-7
-9, E, P, C, B, B1
12 (15)
12
15...80
144 (180)
91
PSS 1212-7
-9, E, P, C, B, B1
12 (15)
12
18...144
144 (180)
91
PSK 1212-7
-9, E, P, C, B, B1
12 (15)
14
16...40
168 (210)
90
PSS 1214-2
B, B1
12 (15)
16
15...80
192 (240)
90
PSK 1216-7
-9, E, P, C, B, B1
12 (15)
18
16...40
216 (270)
90
PSK 1218-2
B, B1
12 (15)
20
15...80
240 (300)
90
PSK 1220-7
-9, E, P, C, B, B1
24
9
31...144
216
94
PSS 249-7
-9, E, P, C, B, B1
24
12
29...80
288
94
PSS 2412-7
-9, E, P, C, B, B1
24
12
31...144
288
94
PSK 2412-7
-9, E, P, C, B, B1
24
14
29...60
336
94
PSS 2414-2
B, B1
24
16
29...80
384
94
PSK 2416-7
-9, E, P, C, B, B1
24
18
29...60
432
94
PSK 2418-2
B, B1
24
20
29...80
480
94
PSK 2420-7
-9, E, P, C, B, B1
36
9
44...144
324
96
PSS 369-7
-9, E, P, C, B, B1
36
12
42...80
432
96
PSS 3612-7
-9, E, P, C, B, B1
36
12
44...144
432
96
PSK 3612-7
-9, E, P, C, B, B1
36
16
42...80
576
95
PSK 3616-7
-9, E, P, C, B, B1
36
20
42...80
720
95
PSK 3620-7
-9, E, P, C, B, B1
48
9
58...144
432
97
PSS 489-7
-9, E, P, C, B, B1
48
12
58...144
576
97
PSK 4812-7
-9, E, P, C, B, B1
285
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Edition 5/05.2001
Cassette Style
PSS, PSK Series
Input
Input voltage
refer to selection chart
No load input current
50 mA
Output
Efficiency
U
i nom
,
I
o nom
up to 97%
Output voltage setting accuracy
U
i nom
,
I
o nom
0.6%
U
o nom
Output voltage switching noise
IEC/EN 61204, total
typ. 0.2%
Line regulation
U
i min
...
U
i max
,
I
o nom
typ.
0.2%
Load regulation
U
i nom
, 0...
I
o nom
typ. 0.15%
Minimum load
not required
0 A
Current limitation
rectangular U/I characteristic
typ. 110%
I
o nom
Operation in parallel
current sharing feature (CS)
Hold-up time
U
i nom
,
I
o nom
, with ext. diode in input line, PSS
up to 7 ms
Protection
Input reverse polarity
built-in fuse
Input undervoltage lockout
typ. 80%
U
i min
Input transient protection
suppressor diode
Output
no-load, overload and short circuit proof
Output overvoltage
suppressor diode in each output
typ. 150 %
U
o nom
Overtemperature
switch-off with auto restart
T
C
typ. 100
C
Control
Inhibit
TTL input, output enabled if left open
R control
output voltage adjustment, PSS
0...108 %
U
o nom
Output voltage indication
LED
Sense lines
compensation of voltage drop across the load lines, PSS
Test sockets
test sockets for check of output voltage
Safety
Approvals
EN 60950, UL 1950, CSA C22.2 No. 950
Protection degree
units without options
IP 20/30
Electric strength test voltage
I/case and O/case
500/750/1500 V DC
EMC
Electrostatic discharge
IEC/EN 61000-4-2
Electromagnetic field
IEC/EN 61000-4-3
Electr. fast transients/bursts
IEC/EN 61000-4-4
Surge
IEC/EN 61000-4-5
Conducted disturbances
IEC/EN 61000-4-6
Electromagnetic emissions
CISPR 22/EN 55022
286
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Edition 5/05.2001
Environmental
Operating ambient temperature
-2,
U
i nom
,
I
o nom
, convection cooled
10...50
C
Operating case temperature
T
C
-2,
U
i nom
,
I
o nom
10...80
C
Storage temperature
-2, non operational
25...100
C
Operating ambient temperature
-7,
U
i nom
,
I
o nom
, convection cooled
25...71
C
Operating case temperature
T
C
-7,
U
i nom
,
I
o nom
25...95
C
Storage temperature
-7, non operational
40...100
C
Damp heat
IEC/EN 60068-2-3
Vibration, sinusoidal
IEC/EN 60068-2-6
Shock
IEC/EN 60068-2-27
Bump
IEC/EN 60068-2-29
Random vibration
IEC/EN 60068-2-64
MTBF
MIL-HDBK-217
Options
Large and small cooling plate instead of standard heatsink
B/B1
Extended temperature range
40...71
C, ambient, operating
-9
Electronic inrush current limitation
E
Output voltage adjustment
8%
U
o nom
, excludes feature R and vice versa
P
Thyristor crowbar on output
C
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
Pin allocation
Electrical Determination
Type H15
Type H15 S4
Pin No.
Ident.
Pin No.
Ident.
Output voltage (positive)
4
Vo+
4/6
Vo+
Output voltage (positive)
6
Vo+
Output voltage (negative)
8
Go
8/10
Go
Output voltage (negative)
10
Go
Crowbar trigger input (option C)
12
C
12
C
Inhibit input
14
i
14
i
R-input (output voltage programming)
1
16
R
16
R
Sense line (negative)
18
S
18
S
Sense line (positive)
20
S+
20
S+
Current sharing control input
22
CS
22
CS
Protective ground (leading pin)
24
24
Input voltage (negative)
26
Gi
26/28
Gi
Input voltage (negative)
28
Gi
Input voltage (positive)
30
Vi+
30/32
Vi+
Input voltage (positive)
32
Vi+
PSS, PSK Series
9...25 A Switching Regulators
287
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Edition 5/05.2001
32 28 24 20 16 12
8
4
Connector type H15
S10010
30 26 22 18 14 10
6
Connector type H15 S4
S10010
32/30
24 20 16 12
4/6
26/28 22 18 14 10/8
H15 S4 connectors for 20 and 25 A types
Mechanical data
Tolerances
0.3 mm (0.012") unless otherwise indicated.
European
Projection
159 (6.25")
4.5 (0.18")
89 (3.50")
111 (3U) (4.37")
168.5 (6.63")
80 (3.15")
6.5 (0.26")
7 TE
9 TE
Measuring point of
case temperature
T
C
171.93 (6.77") (DIN 41494)
50 (1.97")
S09029
Potentiometer
(option P)
Test sockets
LED OK
PSK
Pin allocation
Cassette Style
PSS, PSK Series
288
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Edition 5/05.2001
111 (3U) 4.37")
168.5 (6.63")
Measuring point of
case temperature
T
C
60 (2.36")
7 TE
5 TE
25.9
(1.02")
171.93 (DIN 41494) (6.77")
11.8 (0.46")
152 (5.98")
100 (3.93")
M4
S09028
Potentiometer
(option P)
Test sockets
LED OK
PSS
PSS, PSK Series
9...25 A Switching Regulators
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