PSS369-7EPB1 [BEL]
DC-DC Regulated Power Supply Module, 1 Output, Hybrid, METAL, CASE S01, MODULE;
| 型号： | PSS369-7EPB1 |
| 厂家： | 
BEL FUSE INC. |
| 描述： | DC-DC Regulated Power Supply Module, 1 Output, Hybrid, METAL, CASE S01, MODULE |
| 文件： | 总18页 (文件大小：366K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PSS, PSK Extended Data Sheet
Positive Switching Regulator (Rugged)
Input voltage up to 144 VDC
Single output of 12 to 48 VDC
No input to output isolation
• High efficiency up to 97%
• Extremely wide input voltage range
• Low input to output differential voltage
• Very good dynamic properties
• Input undervoltage lock-out
• Active current sharing for parallel operation
• Output voltage adjustment, inhibit and sense lines
• Fast dynamic response
111
4.4"
3 U
60
2.4"
12 TE
168
6.6"
• Continuous no-load and short-circuit proof
• No derating
Safety according to IEC/EN 60950, UL 1950
Summary
The PSS/PSK series of positive switching regulators is de-
signed as power supply modules for electronic systems.
Their major advantages include a high level of efficiency
that remains virtually constant over the entire input range,
high reliability, low ripple and excellent dynamic response.
Modules with input voltages up to 144 V are specially
designed for secondary switched and battery-driven
mobile applications. The standard case design with heat
sink allows operation at nominal load up to 71°C without
additional cooling, suitable for 19" rack or chassis
mounting.
111
4.4"
3 U
Replacing the heat sink by an optional cooling plate B or B1,
allows chassis or wall mounting on top of a metal surface,
acting as heat sink.
80
3.2"
16 TE
168
6.6"
Connector type: H15 (according to DIN 41612).
Table of Contents
Page
Page
Summary ......................................................................... 1
Model Selection and Key Data........................................ 2
Part Number Description and Product Marking .............. 2
Functional Description .................................................... 3
Electrical Input Data ........................................................ 3
Electrical Output Data ...................................................... 4
Auxiliary Functions .......................................................... 7
Electromagnetic Compatibility (EMC) ............................. 9
Immunity to Environmental Conditions ......................... 10
Mechanical Data ........................................................... 11
Safety and Installation Instructions................................ 13
Description of Options ................................................... 15
Accessories ................................................................... 17
EC Declaration of Conformity ........................................ 18
REV. FEB. 25 2004
Page 1 of 18
PSS, PSK Extended Data Sheet
Positive Switching Regulator (Rugged)
Model Selection and Key Data
Table 1: Type survey
Output
voltage
Vo nom [V]
Output
current
Io nom [A]
Input
voltage range
Vi [V] 1
Input
voltage
Vi nom [V]
Efficiency 2
min [%] typ [%]
Type
designation
Options
h
h
12
12
9
12
18 - 144
18 - 144
60
60
90
90
91
91
PSS 129-7
PSK 1212-7
B, B1
-9
E
P
C
15 3
15 3
9
12
22 - 144
22 - 144
60
60
90
90
92
92
PSS 129-7
PSK 1212-7
24
24
9
12
31 - 144
31 - 144
60
60
93
93
94
94
PSS 249-7
PSK 2412-7
36
36
9
12
44 - 144
44 - 144
80
80
95
95
96
96
PSS 369-7
PSK 3612-7
48
48
9
12
58 - 144
58 - 144
80
80
96
96
97
97
PSS 489-7
PSK 4812-7
1 Surges up to 156 V for 2 s. See also: Electrical Input Data: DVio min
2 Efficiency at Vi nom and Io nom
3 Output set to 15 V at R control input
.
.
Non standard input/output configurations or special custom adaptions are available on request.
Part Number Description and Product Marking
Type Key
PSK 12 12 -7 E P C B
Positive switching regulator in case S01, K01 .. PSS, PSK
Nominal output voltage in volt .............................. 12, ...48
Nominal output current in ampere ............................ 9, 12
Operational ambient temperature range TA
–25 to 71°C................................................ -7
–40 to 71°C (option) .................................. -9
Options:
Inrush current limitation............................... E
Potentiometer 1 ............................................ P
Thyristor crowbar ........................................ C
Cooling plate large/small ..................... B, B1
1 Option P excludes R-features and vice versa.
Example:
PSS 129-7EPCB = A positive switching regulator with a 12 V, 9 A output, ambient temperature range of
–25 to 71°C, inrush current limitation, potentiometer, crowbar and large cooling plate B.
Note: All units feature the following auxiliary functions
which are not shown in the type designation: Input filter, in-
hibit, R control, sense lines, current sharing and test jacks.
Specific type designation, input voltage range, nominal
output voltage and current, protection degree, batch no.,
serial no. and data code including production site,
modification status and date of production.
Produkt Marking
Basic type designation, applicable safety approvals and
recognition marks, warnings, pin allocation, Power-One
patents and company logo, identification of LED, test
sockets and optional potentiometer.
REV. FEB. 25 2004
Page 2 of 18
PSS, PSK Extended Data Sheet
Positive Switching Regulator (Rugged)
Functional Description
The switching regulators are designed using the buck con-
verter topology. The input is not electrically isolated from
the output. During the on period of the switching transistor,
current is transferred to the output and energy is stored in
the output choke. During the off period, this energy forces
the current to continue flowing through the output chocke
to the load and back through the freewheeling diode.
Regulation is accomplished by varying on/off duty cycle.
These regulators are ideal for
a wide range of
applications, where input to output isolation is not
necessary, or where already provided by an external front
end (e.g. a transformer with rectifier). To optimise
customer’s needs, additional options and accessories are
available.
03024
Io
4
Vo+
I i
6
30
Vi+
32
S+
CS
i
20
22
14
16
18
Control
circuit
Vi
Vo
Option C
R
S–
26
Gi–
28
8
Go–
10
24
Option P
Fig. 1
Block diagram
+
–
Electrical Input Data
General Conditions: TA = 25°C, unless TC is specified
Table 2a: Input data
Input
PSS 129
PSK 1212
PSS 129 2
PSK 1212 2
PSS 249
PSK 2412
Characteristics
Conditions
min typ max
min typ max
min typ max
Unit
Vi
Operating input voltage 1
Io = 0 - Io nom
TC min - TC max
18
144
6
22
144
7
31
144
7
VDC
DVio min Min. diff. voltage Vi – Vo
Vi o
Ii 0
Undervoltage lock-out
No load input current
12
12
24
Io = 0, Vi min - Vi max
50
4.5
B
50
4.5
B
50
4.5
B
mA
A
Iinr p
Vi RFI
Peak value of inrush current Vi nom, with option E
Input RFI level, EN 55011/22 Vi nom, Io nom
0.15 - 30 MHz
1 Surges up to 156 V for 2 s.
2 Output set to 15 V at R control input, see Auxiliary Functions.
REV. FEB. 25 2004
Page 3 of 18
PSS, PSK Extended Data Sheet
Positive Switching Regulator (Rugged)
Table 2b: Input data
Input
PSS 369
PSS 489
PSK 3612
PSK 4812
Characteristics
Conditions
min typ max
min typ max
Unit
Vi
Operating input voltage
Io = 0 - Io nom
TC min - TC max
44
144
8
58
144
10
V
DVio min Min. diff. voltage Vi – Vo
Vi o
Ii 0
Undervoltage lock-out
No load input current
36
48
Io = 0, Vi min - Vi max
50
6
50
6
mA
A
Iinr p
Vi RFI
Peak value of inrush current Vi nom, with option E
Input RFI level, EN 55011/22 Vi nom, Io nom
0.15 - 30 MHz
B
B
1 Surges up to 156 V for 2 s (complying to LES-DB standard for UN = 110 V).
2 Output set to 15 V at R control input, see Auxiliary Functions.
Input Filter and Fuse
Inrush Current
An input filter and a fuse are incorporated in all modules as
standard. The filter reduces emitted electrical noise and
prevents oscillations caused by the negative input imped-
ance characteristic of a switched mode regulator.The input
fuse protects against severe defects.
Depending on the input source and the input impedance,
the inrush current into the regulator may peak several thou-
sand amperes during the switch-on sequence. It also deter-
mine the rating of input devices such as switches, relays,
fuses etc.To protect these input devices by limiting the peak
of the inrush current we recommend the use of the active
inrush current limitation circuit, option E.
The maximum permissible additionally superimposed rip-
ple vi of the input voltage (rectifier mode) at a specified in-
put frequency fi has the following values:
vi max = 10 Vpp at 100 Hz, or Vpp = 1000 Hz/fi • 1 V
Electrical Output Data
General Conditions:
– TA = 25°C, unless TC is specified
– With R control output voltage Vo = Vo nom at Io nom
– Sense lines connected at female connector
Table 3a: Output data
Output
PSS 129
min typ max
PSS 129 3
PSS 249
Characteristics
Conditions
min typ max
min typ max
Unit
V
Vo
Io
Output voltage
Vi nom, Io nom
11.93
0
12.07
9.0
14.91
0
15.09
9.0
23.86
0
24.14
9.0
Output current 1
Vi min - Vi max
A
TC min - TC max
IoL
Output current limitation
response
9.0
11.25
9.0
11.25
9.0
11.25
vo
Output
voltage
noise
Switching freq. Vi nom, Io nom
IEC/EN 61204 2
25
29
50
54
30
34
60
64
35
39
60
65
mVpp
mV
Total
BW = 20 MHz
DVo U Static line regulation
DVo l Static load regulation
Vi min - Vi max, Io nom
Vi nom, Io = 0 - Io nom
40
30
70
50
50
40
80
60
80 170
50 120
180
vo d
td
Dynamic
load
regulation
Voltage deviat. Vi nom
140
60
140
60
1
Io nom ↔ /
3
Io nom
Recovery time
60
µs
IEC/EN 61204 2
aUo
Temperature coefficient
DVo/DTC (TC min - TC max
Vi min - Vi max
Io = 0 - Io nom
±3
±4
±5
mV/K
)
±0.02
±0.02
±0.02 %/K
1 See also: Thermal Consideration.
2 See: Technical Information: Measuring and Testing.
3 Output set to 15 V at R control input, see: Auxiliary Functions.
REV. FEB. 25 2004
Page 4 of 18
PSS, PSK Extended Data Sheet
Positive Switching Regulator (Rugged)
Table 3b: Output data
Output
PSS 369
min typ max
PSS 489
Characteristics
Conditions
min typ max
Unit
V
Vo
Io
Output voltage
Output current 1
Vi nom, Io nom
35.78
0
35.22
9.0
47.71
0
48.29
9.0
Vi min - Vi max
A
TC min - TC max
IoL
Output current limitation
response
9.0
11.25
9.0
11.25
vo
Output
voltage
noise
Switching freq. Vi nom, Io nom
IEC/EN 61204 2
35
39
60
64
35
39
60
64
mVpp
mV
Total
BW = 20 MHz
DVo U Static line regulation
Vi min - Vi max, Io nom
Vi nom, Io = 0 - Io nom
120 250
60 120
200
150 350
70 150
200
DVo l
vo d
td
Static load regulation
Dynamic
load
regulation
Voltage deviat. Vi nom
1
Io nom ↔ /
3
Io nom
Recovery time
70
70
µs
IEC/EN 61204 2
aUo
Temperature coefficient
DVo/DTC (TC min - TC max
Vi min - Vi max
Io = 0 - Io nom
±8
±10
mV/K
%/K
)
±0.02
±0.02
Table 3c: Output data
Output
PSK 1212
min typ max
PSK 1212 3
min typ max
PSK 2412
min typ max
Characteristics
Conditions
Unit
V
Vo
Io
Output voltage
Output current 1
Vi nom, Io nom
11.93
0
12.07
12.0
15.0
14.91
0
15.09
12.0
15.0
23.86
0
24.14
12.0
15.0
Vi min - Vi max
TC min - TC max
A
IoL
Output current limitation
response
12.0
12.0
12.0
vo
Output
voltage
noise
Switching freq. Vi nom, Io nom
25
29
50
54
30
34
60
64
35
39
60
65
mVpp
mV
IEC/EN 61204 2
BW = 20 MHz
Total
DVo U Static line regulation
DVo l Static load regulation
Vi min - Vi max, Io nom
Vi nom, Io = 0 - Io nom
40
30
70
50
50
40
80
60
80 170
50 120
180
vo d
td
Dynamic
load
regulation
Voltage deviat. Vi nom
140
60
140
60
1
Io nom ↔ /
3
Io nom
Recovery time
60
µs
IEC/EN 61204 2
aUo
Temperature coefficient
DVo/DTC (TC min - TC max
Vi min - Vi max
Io = 0 - Io nom
±3
±4
±5
mV/K
)
±0.02
±0.02
±0.02 %/K
1 See also: Thermal Consideration.
2 See: Technical Information: Measuring and Testing.
3 Output set to 15 V at R control input, see: Auxiliary Functions.
REV. FEB. 25 2004
Page 5 of 18
PSS, PSK Extended Data Sheet
Positive Switching Regulator (Rugged)
Table 3d: OVtpVt data
Output
PSK 3612
min typ max
PSK 4812
Characteristics
Conditions
min typ max
Unit
V
Vo
Io
Output voltage
Output current 1
Vi nom, Io nom
35.78
0
36.22
12.0
15.0
47.71
0
48.29
12.0
15.0
Vi min - Vi max
TC min - TC max
A
IoL
Output current limitation
response
12.0
12.0
vo
Output
voltage
noise
Switching freq. Vi nom, Io nom
IEC/EN 61204 2
35
39
60
64
35
39
60
64
mVpp
mV
Total
BW = 20 MHz
DVo U Static line regulation
Vi min - Vi max, Io nom
Vi nom, Io = 0 - Io nom
120 250
60 120
200
150 350
70 150
200
DVo l
vo d
td
Static load regulation
Dynamic
load
regulation
Voltage deviat. Vi nom
1
Io nom ↔ /
3
Io nom
Recovery time
70
70
µs
IEC/EN 61204 2
aUo
Temperature coefficient
DVo/DTC (TC min - TC max
Vi min - Vi max
Io = 0 - Io nom
±8
±10
mV/K
%/K
)
±0.02
±0.02
1 See also: Thermal Consideration.
2 See: Technical Information: MeasVring and Testing.
3 Output set to 15 V at R control input, see: Auxiliary Functions.
05010
Thermal Considerations
Vo
Vod
DVo I
DVo I
When a switching regulator is located in free, quasi-station-
ary air (convection cooling) at a temperature TA = 71°C and
is operated at its nominal output current Io nom, the case
temperature TC will be about 95°C after the warm-up
phase, measured at the: MeasVring point of case tempera-
tVre TC (see: Mechanical Data).
Vod
td
td
t
I /I
o
o nom
Under practical operating conditions, the ambient tem-
perature TA may exceed 71°C, provided additional meas-
ures (heat sink, fan, etc.) are taken to ensure that the case
temperature TC does not exceed its maximum value of
95°C.
1
t
0
≥10 µs
≥10 µs
Example: Sufficient forced cooling allows TA max = 85°C. A
simple check of the case temperature TC (TC ≤95°C) at full
load ensures correct operation of the system.
Fig. 2
Dynamic load regulation.
Overtemperature Protection
Io/Io nom
The unit is self-protecting by an internal temperature moni-
tor, which inhibits the output above TC max.The output is au-
tomatically enabled again after temperature has dropped
Forced cooling
1.0
below TC max
.
0.9
0.8
Output Protection
Convection cooling
0.7
A voltage suppressor diode which in worst case conditions
fails into a short circuit, protects the output against an inter-
nally generated overvoltage. Such an overvoltage could oc-
cur due to a failure of either the control circuit or the switch-
ing transistor.The output protection is not designed to with-
stand externally applied overvoltages. The user should en-
sure that systems with Power-One power supplies, in the
event of a failure, do not result in an unsafe condition (fail-
safe).
0.6
TC max
0.5
0.4
0.3
0.2
0.1
0
T [˚C]
A
T
50
60
70
80
90
100
A min
Fig. 3
Output current derating versus temperature.
REV. FEB. 25 2004
Page 6 of 18
PSS, PSK Extended Data Sheet
Positive Switching Regulator (Rugged)
Table 4: MaximVm allowed voltage compensation
Auxiliary Functions
Nominal output Total voltage difference Voltage difference
S
Sense Lines
voltage
between both sense lines
and their respective output
between
Go– and S–
Note: Sense lines should always be connected! It is rec-
ommended to connect the sense lines directly at the
female connector. See also: Technical Information.
12 - 48 V
<1.0 V
<0.25 V
06046
This feature enables compensation of voltage drop across
the connector contacts and the load lines.In case the sense
lines are connected at the load rather than directly at the
connector, the user must ensure that Vo max (between Vo+
and Go–) is not exceeded.
Vi+
Vo+
S+
i
Load
R
S–
CS
Gi–
Applying generously dimensioned cross-section load leads
avoids troublesome voltage drop.To minimize noise pick-up
wire sense lines in parallel or twisted.
Go–
Fig. 5
To ensure correct operation, both sense lines must be con-
nected to their respective power output potential. The volt-
age difference between any sense line and its respective
power output pin (as measured on the connector) should
not exceed the values given in the following table.
Sense lines connection
06047
S+
i
Vi+
i Inhibit (Remote On / Off)
Iinh
Vinh
Note: With open i input, output is enabled (Vo = on)
The inhibit input allows the switching regulator output to be
disabled via a control signal. In systems with several units,
this feature can be used, for example, to control the activa-
tion sequence of the regulators by a logic signal (TTL, C-
MOS, etc.). An output voltage overshoot will not occur when
switching on or off. The inhibit characteristics are refer-
enced to the S– remote sense terminal.
S–
Gi–
Fig. 6
Definition of Iinh and Vinh
Iinh [mA]
Parallel and Series Connection
06034
5
4
3
2
Outputs of equal nominal voltages can be parallel-con-
nected. Use the current sharing feature (CS) for even distri-
bution of the output current. See also: Auxiliary Functions.
V
V
Outputs can be series-connected with any other module. In
series-connection the maximum output current is limited by
the lowest current limitation. Electrically separated source
voltages are needed for each module!
Vo on
Vo off
1
0
–50
Short Circuit Behaviour
Vinh [V]
–20
–30
–10
0
–40
10 20 30 40 50
A constant current limitation circuit holds the output current
almost constant whenever an overload or a short circuit is
applied to the regulator's output. It acts self-protecting and
recovers – in contrary to the fold back method – automati-
cally after removal of the overload or short circuit condition.
Fig. 7
Typical inhibit current Iinh versus inhibit voltage Vinh
06001
Vo/Vo nom
1
Vo/Vo nom
I
05038
1.2
1.0
0.1
t
t
0
tf
tr
0.8
Io L
Inhibit
1
0.6
0.4
0.2
0
Fig. 8
Io/Io nom
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
Output response as a function of inhibit signal
Fig. 4
Overload, short-circuit behaviour Vo versus Io.
REV. FEB. 25 2004
Page 7 of 18
PSS, PSK Extended Data Sheet
Positive Switching Regulator (Rugged)
Table 5: Inhibit characteristics
Characteristics
Conditions
min typ max
Unit
Vinh
Inhibit input voltage to keep Vo = on Vi min - Vi max
regulator output voltage - TC min - TC max
–50
+0.8
+50
VDC
Vo = off
Switch-on time after inhibit command Vi = Vi nom
+2.4
tr
150
30
ms
mA
RL =Vo nom /Io nom
t f
Switch-off time after inhibit command
Input current when inhibited
Ii inh
Vi = Vi nom
25
R Control for Output Voltage Adjustment
Note: With open R input, Vo ≈ Vo nom
Caution: To prevent damage Vext should not exceed 20 V,
nor be negative, and R2 should never be less than 47 kΩ.
.
The output voltage Vo can either be adjusted with an exter-
nal reference voltage (Vext) or with an external resistor (R1
or R2).The adjustment range is 0 - Vo max.The minimum dif-
ferential voltage DVio min between input and output (see:
Electrical Input Data) should be maintained. Undervoltage
lock-out = minimum input voltage.
S+
06049
Uref
R2
R1
4000 Ω
+
–
R
S+
06048
S–
Vref
Fig. 10
4000 Ω
R
Voltage adjustment with external resistor R1 or R2
+
–
+
Vext
S–
b) Vo = 0 - 100% Vo nom, using R1 between R and S–:
4000 Ω • Vo
Vo nom • R1
Vo ≈ –––––––––––
R1 ≈ –––––––––––
Vo nom –Vo
R1 + 4000 Ω
Fig. 9
Voltage adjustment with Vext between R and S–
c) Vo = Vo nom - Vo max, using R2 between R and S+:
4000 Ω • Vo • (Vo nom – 2.5 V)
a) Vo = 0 - Vo max, using Vext between R and S–:
R2 ≈ ––––––––––––––––––––––––
2.5 V • (Vo – Vo nom
)
Vo
Vext
Vext ≈ 2.5 V • –––––
Vo ≈ Vo nom • –––––
Vo nom • 2.5 V • R2
Vo nom
2.5 V
Vo ≈ ––––––––––––––––––––––––––––––––
2.5 V • (R2 + 4000 Ω) – Vo nom • 4000 Ω
Table 6: Maximum adjustable output voltage
Characteristics
Conditions
PSS 129
PSS 249
PSS 369
PSS 489
PSK 1212
PSK 2412
PSK 3612
PSK 4812
min typ max
min typ max
min typ max
min typ max
Unit
Vo max Maximum adjustable
output at R control input
Vi nom, Io nom
16.0
26.0
42.5
52.8
V
CS Current Sharing
Test Sockets
For parallel operation of several modules, interconnecting
all CS pins ensures that the output currents are evenly dis-
tributed. This feature improves transient load performance
and increases system reliability. All paralleled units should
be supplied by equal input voltage (Vi) and
interconnecting leads should have equal length and cross
section to ensure equal voltage drop.
Test sockets (pin ∅ = 2 mm) for measuring the output volt-
age Vo internally at the cxonnector terminals, are located at
the front side of the module.The test sockets are protected
by a series resistor.
LED Output Voltage Indicator
A green output indicator LED shines when the output volt-
age is present.
REV. FEB. 25 2004
Page 8 of 18
PSS, PSK Extended Data Sheet
Positive Switching Regulator (Rugged)
Electromagnetic Compatibility (EMC)
Electromagnetic Immunity
General condition: Case not earthed.
Table 7: Immunity type tests
Phenomenon Standard 1 Class
Level
Coupling
mode 2
Value
applied
Waveform
Source
Imped.
Test
procedure
In
Per-
3
oper. form.
1 MHz burst
disturbance
IEC
60255-22-1
III
i/o, i/c, o/c
+i/–i, +o/–o
i/c, +i/–i
2500 Vp
1000 Vp
800 Vp
400 damped
1 MHz waves/s
200 Ω
2 s per
coupling mode
yes
yes
A
B
Voltage surge
IEC 60571-1
100 µs
50 µs
100 Ω
1500 Vp
1 pos. and 1 neg.
voltage surge per
coupling mode
3000 Vp
4000 Vp
7000 Vp
5 µs
1 µs
100 ns
1/50 ns
Electrostatic
discharge
IEC/EN
61000-4-2
4
3
contact discharge 8000 Vp
to case
330 Ω
10 positive and
10 negative
discharges
yes
A
A
Electromagnetic IEC/EN
field
antenna
i/c, +i/–i
10 V/m
AM 80%
1 kHz
80 - 1000 MHz
yes
yes
61000-4-3
Electrical fast
transient/burst
IEC/EN
61000-4-4
3
4
2000 Vp bursts of 5/50 ns 50 Ω
60 s positive
60 s negative
bursts per
A
5 kHz rep. rate
transients with
15 ms burst
4000 Vp
B 4
coupling mode
duration and a
300 ms period
Surge
IEC/EN
61000-4-5
3
3
i/c
2000 Vp
1000 Vp
1.2/50 µs
12 Ω
2 Ω
5 pos. and 5 neg.
surges per
coupling mode
yes
yes
A
A
+i/–i
Conducted
disturbances
IEC/EN
61000-4-6
i, o, signal wires
10 VAC
(140 dBµV)
AM 80%
1 kHz
150 Ω
0.15 - 80 MHz
1 For related and previous standards see: Technical Information: EMC. 2 i = input, o = output, c = case.
3 A = Normal operation, no deviation from specifications, B = Normal operation, temporary deviation from specs possible.
4 With option C, manual reset might be necessary.
Electromagnetic Emission
For emission levels refer to: Electrical Input Data.
[dBµV]
90
07022
80
EN 55022 A
EN 55022 B
70
60
50
40
30
20
10
Fig. 11
0
MHz
Typical disturbance voltage (quasi-peak) at the input
according to EN 55011/22 measured at Vi nom and Io nom
.
REV. FEB. 25 2004
Page 9 of 18
PSS, PSK Extended Data Sheet
Positive Switching Regulator (Rugged)
Immunity to Environmental Conditions
Table 8: Mechanical stress
Test Method
Standard
Test Conditions
Temperature:
Status
Ca
Ea
Eb
Fc
Damp heat
steady state
IEC/DIN IEC 60068-2-3
MIL-STD-810D section 507.2 Relative humidity:
Duration:
40 ±2 °C
%
56 days
Unit not
operating
93 +2/-3
Shock
(half-sinusoidal)
IEC/EN/DIN EN 60068-2-27
MIL-STD-810D section 516.3 Bump duration:
Number of bumps:
Acceleration amplitude:
100 gn = 981 m/s2
6 ms
18 (3 each direction)
Unit
operating
Bump
(half-sinusoidal)
IEC/EN/DIN EN 60068-2-29
MIL-STD-810D section 516.3 Bump duration:
Number of bumps:
Acceleration amplitude:
40 gn = 392 m/s2
6 ms
6000 (1000 each direction)
Unit
operating
Vibration
IEC/EN/DIN EN 60068-2-6
MIL-STD-810D section 514.3
Acceleration amplitude:
0.35 mm (10 - 60 Hz)
Unit
(sinusoidal)
5 gn = 49 m/s2 (60 - 2000 Hz) operating
10 - 2000 Hz
Frequency (1 Oct/min):
Test duration:
7.5 h (2.5 h each axis)
Fda Random vibration IEC 60068-2-35
Acceleration spectral density: 0.05 g2/Hz
Unit
wide band
Reproducibility
high
DIN 40046 part 23
Frequency band:
Acceleration magnitude:
Test duration:
20 - 500 Hz
4.9 grms
3 h (1 h each axis)
operating
Kb
Salt mist, cyclic
(sodium chloride
NaCl solution)
IEC/EN/DIN IEC 60068-2-52 Concentration:
5% (30°C)
Unit not
operating
Duration:
Storage:
Storage duration:
Number of cycles:
2 h per cycle
40°C, 93% rel. humidity
22 h per cycle
3
Table 9: Temperature specifications, valid for an air pressure of 800 - 1200 hPa (800 - 1200 mbar)
Temperature
Standard -7
Option -9
Characteristics
Conditions
Operational 2
min
max
71
min
–40
–40
–55
max
71
Unit
°C
TA
TC
TS
Ambient temperature 1
–25
–25
–40
Case temperature
Storage temperature 1
95
95
Non operational
100
100
1 MIL-STD-810D section 501.2 and 502.2.
2 See: Thermal Considerations and Overtemperature Protection.
Table 10: MTBF and device hoVrs
MTBF
Ground Benign
TC = 40°C
Ground Fixed
Ground Mobile
TC = 50°C
Device Hours 1
MTBF acc. to MIL-HDBK-217F
TC = 40°C
138'000 h
TC = 70°C
35'000 h
335'000 h
33'000 h
2'100'000 h
1 Statistical values, based on an average of 4300 working hours per year and in general field use
REV. FEB. 25 2004
Page 10 of 18
PSS, PSK Extended Data Sheet
Positive Switching Regulator (Rugged)
Mechanical Data
The converters are designed to be inserted into a rack according to IEC 60297-3.
European
Projection
7 TE
5 TE
3.27
30.3
7.4 20.34
171.9
10.34
76
8
50
4 x M4
LED OK green
Potentiometer
(option P)
Test sockets
Measuring point of
case temperature TC
27.38
Front plate
Main face
d
60
168.5 ±0.5
Fig. 12
Case S01, weight 1.3 kg
Aluminium, fully enclosed,black finish and self cooling.
Note:
– d ≥15 mm, recommended minimum distance to next part
to ensure proper air circulation at full output power.
– free air locations: the module should be mounted with
fins in vertical position to achieve a maximum air flow
through heat sink.
REV. FEB. 25 2004
Page 11 of 18
PSS, PSK Extended Data Sheet
Positive Switching Regulator (Rugged)
Mechanical Data
The converters are designed to be inserted into a rack according to IEC 60297-3.
European
Projection
7 TE
30.3
9 TE
3.27
7.4 20.34
159
4.5
10.34
LED OK green
Potentiometer
(option P)
Test sockets
Measuring point of
case temperature TC
50
27.38
171.9
80
d
Back plate
Main face
Front plate
168.5
Note:
Fig. 13
Case K01, weight 1.6 kg
Aluminium, fully enclosed, black finish and self cooling.
– d ≥15 mm, recommended minimum distance to next part
to ensure proper air circulation at full output power.
– free air locations: the module should be mounted with
fins in vertical position to achieve a maximum air flow
through heat sink.
REV. FEB. 25 2004
Page 12 of 18
PSS, PSK Extended Data Sheet
Positive Switching Regulator (Rugged)
Safety and Installation Instructions
Connector Pin Allocation
Table 11: H15 connector pin allocation
The connector pin allocation table defines the electrical
potentials and the physical pin position on the connector.
Pin 24 (protective earth) is a leading pin, which provides
electrical contact first. The modules should only be wired
via the female connector H15 (according to DIN 41612) to
ensure requested safety!
Electrical Determination
Type H15
Pin No.
Ident.
Output voltage (positive)
Output voltage (positive)
Output voltage (negative)
Output voltage (negative)
4
6
8
Vo+
Vo+
Go–
Go–
10
Crowbar trigger input (option C)
Inhibit input
R-input (output voltage programming)
Sense line (negative)
Sense line (positive)
Current sharing control input
12
14
16
18
20
22
n.c.
i
R
S–
S+
CS
32
4
Fixtures for connector retension
clips V (see Accessories)
Protective ground (leading pin)
Input voltage (negative)
Input voltage (negative)
Input voltage (positive)
Input voltage (positive)
24
26
28
30
32
Gi–
Gi–
Vi+
Vi+
Fig. 14
View of male H15 connector
Installation Instruction
Standards and Approvals
Installation of the switching regulators must strictly follow
the national safety regulations in compliance with the enclo-
sure, mounting, creepage, clearance, casualty, markings
and segregation requirements of the end-use application.
All switching regulators are UL recognized according to
UL 60950, CAN/CSA C22.2 No. 234-M90 and IEC/EN
60950.
The units have been evaluated for:
• Building in
• Operational insulation from input to output and input/out-
put to case
• The use in a pollution degree 2 environment
• Connecting the input to a secondary circuit which is sub-
ject to a maximum transient rating of 1500 V
Check for hazardous voltages before altering any con-
nections.
The input and the output circuit are not separated. i.e. the
negative path is internally interconnected!
The units should be connected to a secondary circuit. Do
not open any module. Ensure that a unit failure (e.g. by an
internal short-circuit) does not result in a hazardous condi-
tion. See also :Safety of operator accessible output circuit.
The switching regulators are subject to manufacturing sur-
veillance in accordance with the above mentioned UL,
CSA and ISO 9001 standards.
Note: Additional information on input circuitry, grounding
and parallel operation of units is given in: Technical Infor-
mation: Application Notes.
Safety of Operator Accessible Output Circuit
If the output circuit of a switching regulator is operator-ac-
cessible, it shall be an SELV circuit according to IEC/EN
60950 related safety standards.
Protection Degree
The protection degree is IP 30 (equipped with option P: IP
20). It applies only if the module is plugged-in or the female
connector is properly attached to the module.
The following table shows some possible installation con-
figurations, compliance with which causes the output circuit
of the switching regulator to be an SELV circuit according to
IEC/EN 60950 up to a configured nominal output voltage of
30 V, or 48 V if option C is fitted.
Isolation
Electric strength test voltage between input interconnected
with output and case: 1500 VDC, 1 s.This test is performed
in the factory as routine test in accordance with IEC/EN
60950 and UL 60950 and should not be repeated in the
field. Power-One will not honour any guarantee claims re-
sulting from electric strength field tests.
However, it is the sole responsibility of the installer or user
to assure the compliance with the relevant and applicable
safety regulations.
REV. FEB. 25 2004
Page 13 of 18
PSS, PSK Extended Data Sheet
Positive Switching Regulator (Rugged)
Table 12: Insulation concept leading to an SELV output circuit
Conditions Front end
Switching regulator
Result
Supply
voltage
Minimum required grade Maximum Minimum required safety
of isolation, to be provided DC output status of the front end
Measures to achieve the
specified safety status of the the switching
Safety status of
by the AC-DC front end, voltage
including mains supplied from the
battery charger
output circuit
output circuit
regulator output
circuit
front end 1
Battery
Double or Reinforced
≤60 V
SELV circuit
None
SELV circuit
supply,
≤60 V
Earthed hazardous voltage Input fuse 3 and earthed 4
Earthed SELV
circuit
considered
as secon-
dary circuit
secondary circuit 2
or non accessible case 5
Unearthed hazardous
Input fuse 3 and unearthed,
Unearthed SELV
circuit
voltage secondary circuit 5 non accessible case 5
Hazardous voltage
secondary circuit
Input fuse 3 and earthed output Earthed SELV
circuit 4 and earthed 4 or non
accessible case 5
circuit
Mains
≤250 VAC
Basic
≤60 V
Earthed SELV circuit 4
ELV circuit
None
Input fuse 3 and earthed output
circuit 4 and earthed 4 or non
user accessible case 5
>60 V
Hazardous voltage
secondary circuit
Double or reinforced
≤60 V
SELV circuit
None
SELV circuit
>60 V
Double or reinforced insu- Input fuse 3 and unearthed
lated unearthed hazardous and non accessible case 5
voltage secondary circuit 5
Unearthed SELV
circuit
1 The front end output voltage should match the specified input voltage range of the switching regulator.
2 The Gi– terminal of the switching regulator has to be connected to earth by the installer according to the relevant safety standard,
e.g. IEC/EN 60950.
3 The installer shall provide an approved fuse (slow blow type with the lowest current rating suitable for the application, max. 12.5 A) in
a non-earthed input conductor directly at the input of the switching regulator. If Vo+ is earthed, insert the fuse in the Gi- line. For UL’s
purpose, the fuse needs to be UL-listed.
4 The earth connection has to be provided by the installer according to the relevant safety standard, e.g. IEC/EN 60950.
5 Has to be insulated from earth by double or reinforced insulation according to the relevant safety standard, based on the maximum
output voltage from the front end.
REV. FEB. 25 2004
Page 14 of 18
PSS, PSK Extended Data Sheet
Positive Switching Regulator (Rugged)
11029
Î [A]
Description of Options
Startup
Inrush limit
-9 Extended Temperature Range
Soft start
Normal operation
(15 Ω resistor bypassed)
This option defines an extended operational ambient tem-
perature range of TA = –40 to 71°C.
Vi
Ii = ––––
15 Ω
(
)
P
Potentiometer
Note: Option P is not recommended, if several modules
are operated in parallel connection.
t [ms]
Option P excludes R function.The output voltage Vo can be
adjusted with a screwdriver in the range 90 - 110%
0
40 (typical)
100 (typical)
Fig. 15
Option E: Inrush current versus time
Vonom
.
However, the minimum differential voltage ∆Vi o min be-
tween input and output as specified in Electrical Input
Data should be maintained.
C
Thyristor Crowbar
Note:The thyristor can be deactivated by removal of the in-
put voltage only. The inhibit signal cannot deactivate the
thyristor.
E
Inrush Current Limitation
Note: This option requires increased minimum input volt-
age of up to 1 V, dependent upon input range. In battery
driven applications the use of option E is essential due to
very low battery impedances.
Option C protects the load against power supply malfunc-
tion. It is not designed to sink external currents.
As a central overvoltage protection device, the crowbar is
usually connected to the external load via distributed in-
ductance of the lines. For this reason, the overvoltage at the
load can temporarily exceed the trigger voltage Vo c. De-
pending on the application, further decentralized overvolt-
age protection elements may have to be used additionally.
Inrush current can reach several thousand amperes de-
pending on the source and input line conditions. Immedi-
ately after application of the input supply, the inrush current
is limited by parasitic components of the voltage source
and power supply input only. The power supply input
presents a very low impedance to such currents and when
driven from a low impedance source, for example a
battery, the inrush current can peak at several orders of
magnitude above the continuous DC input current. Option
E dramatically reduces this peak current and is recom-
mended for any application to protect series elements
such as switches or circuit brakers and rectifiers. After
startup, the resistor is bypassed for normal operation.
A fixed-value monitoring circuit checks the output voltage
Vo and when the trigger voltage Vo c is reached, the thyristor
crowbar triggers and disables the output.
An external connection C (crowbar trigger control) is pro-
vided.When crowbar option is used with two or more power
supplies in parallel connection, all crowbar trigger terminals
(C) should be interconnected. This ensures all crowbar cir-
cuits triggering simultaneously in order to disable all out-
puts at once. The crowbar trigger voltage is maintained be-
tween Vo+ and Go–. To prevent false triggering, the user
should ensure that Vo (between Vo+ and Go–) deos not
exceed Vo c.
Table 13: Crowbar trigger levels
Characteristics
Condition
PSS 129
PSS 249
PSS 369
PSS 489
PSK 1212
PSK 2412
PSK 3612
PSK 4812
min typ max
min typ max
min typ max
min typ max Unit
Vo c
ts
Trigger voltage TC min - TC max
Vi min - Vi max
17.8 18.9
14.3 15.2 1
28.89 30.6
47.0 50.0
43.0 45.5 1
63.0 67.0 VDC
Io = 0 - Io nom
Delay time
1.5
1.5
1.5
1.5
µs
1 Crowbar trigger voltage with option P
REV. FEB. 25 2004
Page 15 of 18
PSS, PSK Extended Data Sheet
Positive Switching Regulator (Rugged)
B, B1 Cooling Plate
Where a cooling surface is available, a cooling plate
(option B, or option B1) can be used instead of the
standard heatsink. The mounting system must ensure suf-
ficient cooling capacity to guarantee that the maximum
case temperature TC max is not exceeded. The required
cooling capacity can be calculated by the following
formula:
100% – η
PLoss = –––––––- • (Vo • Io)
η
5
6.5
47.2
11027
38.5
11.8
17.3
133.4 ±0.2
168
30
Fig. 16
Option B, large cooling plate
Weight: 1.2 kg
5
47.2
38.5
5
158
11.8
M 4
168 ±0.5
171.9
Fig. 17
Option B1, small cooling plate
Weight: 1.2 kg
REV. FEB. 25 2004
Page 16 of 18
PSS, PSK Extended Data Sheet
Positive Switching Regulator (Rugged)
Accessories
A variety of electrical and mechanical accessories are
available including:
– Front panels for 19" rack mounting, Schroff and Intermas
systems, 12 and 16 TE.
– Mating H15 and H15 S4 connectors with screw, solder
fast-on or press-fit terminals.
– Connector retention facilities (V-clips).
– DIN-rail mounting adaptor.
For more detailed information please refer to: Accessory
Products.
NUCLEAR AND MEDICAL APPLICATIONS - Power-One products are not authorized for use as critical components in life support
systems, equipment used in hazardous environments, or nuclear control systems without the express written consent of the
respective divisional president of Power-One, Inc.
TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change
depending on the date manufactured. Specifications are subject to change without notice.
REV. FEB. 25 2004
Page 17 of 18
PSS, PSK Extended Data Sheet
Positive Switching Regulator (Rugged)
EC Declaration of Conformity
We
Power-One AG
Ackerstrasse 56 CH-8610 Uster
declare under our sole responsibility that all PSx Series switching regulators carrying the
CE-mark are in conformity with the provisions of the Low Voltage Directive (LVD) 73/23/
EEC of the European Communities.
Conformity with the directive is presumed by conformity wih the following harmonized
standards:
• EN 61204: 1995 (= IEC 61204: 1993, modified)
Low-voltage power supply devices, d.c. output - Perfomance characteristics
and safety requirements
• EN 60950: 1992 + A1: 1993 + A2 (= IEC 950 second edition 1991 + A1: 1992 +
A2: 1993)
Safety of information technology equipment
The installation instructions given in the corresponding data sheet describe correct installation
leading to the presumption of conformity of the end product with the LVD. All PSx Series
Switching Regulators are components, intended exclusively for inclusion within other
equipment by an industrial assembly operation or by professional installers. They must not
be operated as stand alone products.
Hence conformity with the Electromagnetic Compatibility Directive 89/336/EEC (EMC
Directive) needs not to be declared. Nevertheless, guidance is provided in most product
application notes on how conformity of the end product with the indicated EMC standards
under the responsibility of the installer can be achieved, from which conformity with the
EMC directive can be presumed.
Uster, 1 Sep. 2003
Power-One AG
Rolf Baldauf
Johann Milavec
Director Engineering
Director Projects and IP
REV. FEB. 25 2004
Page 18 of 18
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