PSB363-9IPC [BEL]
DC-DC Regulated Power Supply Module, 1 Output, METAL, CASE B02, MODULE-7;
| 型号： | PSB363-9IPC |
| 厂家： | 
BEL FUSE INC. |
| 描述： | DC-DC Regulated Power Supply Module, 1 Output, METAL, CASE B02, MODULE-7 |
| 文件： | 总13页 (文件大小：221K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PSB Series Extended Data Sheet
Positive Switching Regulators (Rugged)
Input voltage up to 144 V DC
Single output of 5.1 to 48 V DC
No input to output isolation
• High efficiency up to 96%
• Extremely wide input voltage range
• Very good dynamic properties
• Input undervoltage lock-out
• External output voltage adjustment and inhibit
• 2 temperature ranges
32
1.3"
• Continuous no-load and short-circuit proof
• No derating
69
2.7"
106
4.2"
Safety according to IEC/EN 60950
Summary
Modules with input voltages up to 144 V are specially de-
signed for battery driven mobile applications. The case
design allows operation at nominal load up to 71°C with-
out additional cooling.
The PSB 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.
Model Selection and Key Data
Table 1: Type survey
Output
voltage
Vo nom [V]
Output
current
Input
voltage range
Vi [V] 2
Input
voltage
Vi nom [V]
Efficiency 3
Type
designation
Options
Io nom [A] Io max [A] 1
h
min [%]
htyp [%]
80
5.1
12
15
24
36
48
4
3
3
3
3
3
5
4
4
4
4
4
15 – 144
18 – 144
22 – 144
31 – 144
44 – 144
58 – 144
60
60
60
60
80
80
76
87
89
92
94
95
PSB 5A4-7iR
PSB 123-7iR
PSB 153-7iR
PSB 243-7iR
PSB 363-7iR
PSB 483-7iR
-9, L, P, C
89
90
94
95
96
1 Io max for Vi -80 V or reduced temperature. See: Thermal Considerations.
2 Surges up to 156 V for 2 s. See also: Electrical Input Data: DVio min
3 Efficiency at Vi nom and Io nom
.
.
Non standard input/output configurations or special custom adaptions are available on request.
See also: Commercial Information: Inquiry Form for Customized Power Supply.
Table of Contents
Page
Page
Summary ......................................................................... 1
Model Selection and Key Data ....................................... 1
Part Number Description ................................................ 2
Functional Description .................................................... 2
Electrical Input Data ........................................................ 3
Electrical Output Data ..................................................... 4
Auxiliary Functions.......................................................... 6
Electromagnetic Compatibility (EMC) ............................ 8
Immunity to Environmental Conditions .......................... 9
Mechanical Data ........................................................... 10
Safety and Installation Instructions............................... 10
Description of Options .................................................. 12
Accessories ................................................................... 12
EC Declaration of Conformity ....................................... 13
REV. OCT 17, 2003
Page 1 of 13
PSB Series Extended Data Sheet
Positive Switching Regulators (Rugged)
Part Number Descriptions
PSB 12 3 -7 L i R P C
Positive switching regulator in case B02 ................... PSB
Nominal output voltage in volt (5A for 5.1 V)....... 5A, ... 48
Nominal output current in ampere ............................. 4, 5
Operational ambient temperature range TA
–25 to 71°C......................................................... -7
–40 to 71°C (option) ........................................... -9
Input filter (option)............................................................ L
Inhibit input ....................................................................... i
Control input for output voltage adjustment 1 ................. R
Potentiometer 1 (option) ................................................... P
Thyristor crowbar (option) .............................................. C
1 Feature R excludes option P and vice versa.
Example: PSB 123-7LiPC = A positive switching regulator with a 12 V, 3 (4) A output, ambient temperature range of
–25 to 71°C, input filter, inhibit input, potentiometer and thyristor crowbar.
Functional Description
The switching regulators are designed using the buck con-
verter topology. See also: Technical Information: Topolo-
gies. 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 choke to the load
and back through the freewheeling diode. Regulation is
accomplished by varying the on/off duty ratio of the power
switch.
These regulators are ideal for a wide range of applica-
tions, 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.
03011
Io
I i
Vo+
Vi+
Option C
i
Control circuit
Vi
Vo
Option C
R
G
Go–
Gi–
Option P
Fig. 1
Block diagram
REV. OCT 17, 2003
Page 2 of 13
PSB Series Extended Data Sheet
Positive Switching Regulators (Rugged)
Electrical Input Data
General Conditions: TA = 25°C, unless TC is specified
Table 2a: Input data
Input
PSB 5A4
min typ
15
PSB 123
typ max
PSB 153
Characteristics
Conditions
max
144
9.9
min
min
typ max
Unit
Vi
Operating input voltage 1
Io = 0 – Io max
TC min - TC max
18
144
6
22
144 V DC
7
DVio min Min. diff. voltage (Vi – Vo)
VU VL
Ii NL
Iinr p
tinr r
Undervoltage lock-out
No load input current
10
12
15
Io = 0, Vi min – Vi max
40
35
35
mA
A
Peak value of inrush current Vi nom
150
5
150
5
150
5
without option L
Rise time
µs
tinr h
Iinr p
tinr r
Time to half-value
40
40
40
Peak value of inrush current Vi nom
180
15
180
15
180
15
A
with option L
Rise time
µs
tinr h
ui RFI
Time to half-value
100
100
100
Input RFI level, EN 55011/22 Vi nom, Io nom
0.15 – 30 MHz
A
B2
A
B 2
A
B2
dB(µV)
with option L
Table 2b: Input data
Input
PSB 243
PSB 363
PSB 483
Characteristics
Conditions
min typ
max
144
7
min typ max
min typ max Unit
Vi
Operating input voltage 1
Io = 0 – Io max
TC min – TC max
31
44
144
8
58
144 V DC
10
∆Vio min Min. diff. voltage (Vi – Vo)
VUVL
Ii NL
Iinr p
tinr r
Undervoltage lock-out
No load input current
19
29
40
Io = 0, Vi min – Vi max
35
40
45
mA
A
Peak value of inrush current Vi nom
150
5
150
5
150
5
without option L
Rise time
µs
tinr h
Iinr p
tinr r
Time to half-value
40
40
40
Peak value of inrush current Vi nom
180
15
180
15
180
15
A
with option L
Rise time
µs
tinr h
ui RFI
Time to half-value
100
100
100
Input RFI level, EN 55011/22 Vi nom, Io nom
0.15 – 30 MHz
A
B2
A
B 2
A
B2
dB(µV)
with option L
1 Surges up to 156 V for 2 s (complying to LES-DB standard for VN = 110 V).
2 With external input capacitor Ce = 470 µF/200 V and option L.
04016
External Input Circuitry
Vo+
Vi+
Gi–
The sum of the lengths of the supply lines to the source or
to the nearest capacitor •100 µF (a + b) should not exceed
5 m unless option L is fitted. This option is recommended
in order to prevent power line oscillations and reduce su-
perimposed interference voltages. See also: Technical In-
formation: Application Notes.
+
a
b
Go–
Fig. 2
Switching regulator with long supply lines.
REV. OCT 17, 2003
Page 3 of 13
PSB Series Extended Data Sheet
Positive Switching Regulators (Rugged)
Electrical Output Data
General Conditions:
– TA = 25°C, unless TC is specified
– R pin not connected, with opt. P, Vo adjusted to Vo nom at Io nom
Table 3a: Output data
Output
PSB 5A4
PSB 123
PSB 153
typ max
Characteristics
Conditions
min typ
max
min
typ max
min
Unit
V
Vo
Io
Output voltage
Vi nom, Io max
5.07
0
5.13 11.93
12.07 14.91
15.09
4.0
Output current 1
Vi min – Vi max
TC min – TC max
5.0
6.5
0
4.0
5.2
0
A
IoL
Output current limitation
5.0
4.0
4.0
5.2
1
response
uo
Output
voltage
noise
Switching freq. Vi nom, Io max
IEC/EN 61204 2
15
19
35
39
25
29
45
49
40
44
70
74
mVpp
mV
Total
BW = 20 MHz
DVo U Static line regulation
DVo l Static load regulation
Vi min – Vi max, Io max
Vi nom, Io = 0 – Io max
20
20
45
35
30
25
55
40
50
30
75
65
Vo d
td
Dynamic
load
regulation
Voltage deviat. Vi nom
100
50
100
60
100
60
I
o nom ↔ 1/
Io nom
3
Recovery time
µs
IEC/EN 61204 2
aUo
Temperature coefficient
DVo/DTC (TC min – TC max
Vi min – Vi max
Io = 0 – Io max
±1
±2
±3
mV/K
)
±0.02
±0.02
±0.02 %/K
Table 3b: Output data
Output
PSB 243
PSB 363
PSB 483
Characteristics
Conditions
min typ
max
min typ max
min typ max Unit
Vo
Io
Output voltage
Vi nom, Io max
23.86
0
24.14 35.78
36.22 47.71
48.29
4.0
V
A
Output current 1
Vi min – Vi max
TC min – TC max
4.0
5.2
0
4.0
5.2
0
IoL
Output current limitation
4.0
4.0
4.0
5.2
1
response
uo
Output
voltage
noise
Switching freq. Vi nom, Io max
45
50
120
125
70
75
180
185
90
95
190
195
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 max
Vi nom, Io = 0 – Io max
70
70
150
120
100 200
120 160
140
150
150
150
100
300
250
Vo d
td
Dynamic
load
regulation
Voltage deviat. Vi nom
o nom ↔ 1/
Io nom
120
80
I
3
Recovery time
100
µs
IEC/EN 61204 2
aUo
Temperature coefficient
DVo/DTC (TC min – TC max
Vi min – Vi max
Io
Io = 0 –
max
±5
±8
±10 mV/K
±0.02 %/K
)
±0.02
±0.02
1 See also: Temperature Dependent Output Current Limitation Response IoL and: Thermal Considerations.
2 See: Technical Information: Measuring and Testing.
REV. OCT 17, 2003
Page 4 of 13
PSB Series Extended Data Sheet
Positive Switching Regulators (Rugged)
05010
Vo
Output Protection
Vod
DVo I
DVo I
A voltage suppressor diode which in worst case conditions
fails into a short circuit, (or a thyristor crowbar, option C)
protects the output against an internally generated over-
voltage. Such an overvoltage could occur due to a failure
of either the control circuit or the switching transistor. The
output protection is not designed to withstand externally
applied overvoltages. The user should ensure that sys-
tems with Power-One power supplies, in the event of a
failure, do not result in an unsafe condition (fail-safe).
Vod
td
td
t
t
I /I
o
o nom
1
0
Parallel and Series Connection
≥10 µs
≥10 µs
Outputs of equal nominal voltages can be parallel-con-
nected. However, the use of a single unit with higher out-
put power, because of its power dissipation, is always a
better solution.
Fig. 3
Dynamic load regulation.
Thermal Considerations
In parallel-connected operation, one or several outputs
may operate continuously at their current limit knee-point
which will cause an increase of the heat generation. Con-
sequently, the max. ambient temperature value should be
reduced by 10 K.
When a switching regulator is located in free, quasi-sta-
tionary 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 Measuring point of case tempera-
ture TC (see: Mechanical Data).
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!
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.
Temperature dependent output current limitation
response Io L
These switching regulators withstand a continuous input
voltage of up to 144 V DC (120 V +20%) with surges up to
156 V for 2 s. They also comply with LES-DB standard for
VN = 110 V.
With an input voltage above 80 V (up to 144 V) or an out-
put current higher than Io nom (up to Io max) the maximum
allowed temperatures are reduced according to fig.: Out-
put current derating versus temperature. A check of the
case temperature at worst case conditions (highest input
voltage and highest output current of the application)
against the applicable curve of the figure ensures correct
operation of the system.
Io max is continuously available over the entire temperature
range for an input voltage up to 80 V, or over the whole in-
put voltage range at a reduced maximum ambient tem-
perature of TA max = 46°C.
Io/Io max
For operation at TA = 46 to 71°C together with an input
voltage between 80 and 144 V the internal thermistor
(PTC) starts to reduce the output current limitation value Io
L. Under the most extreme conditions this results in a re-
Vi ≤80 V
Vi ≤80 V
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
duction of Io L by 1 A from Io max to Io nom
.
The fig.: Typical temperature dependent output current
limitation response Io L shows the minimum Io L value for
continuous operation with different ambient and case tem-
peratures. Operation at higher ambient temperatures TA is
possible, provided that the specified case temperature
TC max is not exceeded (short term operation, heat sink,
fan, etc.).
Vi > 80 V
Vi > 80 V
TA max
TC max
TA, TC
50
60
70
71
80
90
100
TA min
TC min
[˚C]
83
46
Fig. 4
Output current derating versus temperature
REV. OCT 17, 2003
Page 5 of 13
PSB Series Extended Data Sheet
Positive Switching Regulators (Rugged)
05028
Io
Io max
Auxiliary Functions
TA = 46˚C, TC = 83˚C
i Inhibit for Remote On and Off
Note: With open i-input, output is enabled (Vo = on)
TA = 60˚C, TC = 90˚C
TA = 71˚C, TC = 95˚C
1A
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
activation sequence of the regulators by a logic signal
(TTL, C-MOS, etc.). An output voltage overshoot will not
occur when switching on or off.
Io nom
Vi [V]
144
Vi min
Fig. 5
Typical temperature dependent output current limitation
response Io L
80
108
Iinh [mA]
.
06034
5
Short Circuit Behaviour
4
3
A constant current limitation circuit holds the output cur-
rent almost constant whenever an overload or a short cir-
cuit is applied to the regulator's output. It acts self-protect-
ing and recovers – in contrary to the fold back method –
automatically after removal of the overload or short circuit
condition.
V
V
2
1
o on
Vo off
V
0
–50
Vo/Vo nom
Vinh [V]
–20
–30
–10
0
–40
10 20 30 40 50
I
05026
1.2
1.0
Fig. 7
Typical inhibit current Iinh versus inhibit voltage Vinh
0.8
Io L
0.6
06009
Vo+
i
Vi+
0.4
0.2
Iinh
Io/Io max
0
Fig. 6
Overload, short-circuit behaviour Vo versus Io at Vi - 80 V
or Io - Io nom
Vinh
0.2
0.4
0.6
0.8
1.0
1.2
1.4
Go–
Gi–
.
Fig. 8
Definition of Iinh and Vinh
06001
Vo/Vo nom
1
0.1
t
t
0
tf
tr
Inhibit
1
0
Fig. 9
Output response as a function of inhibit signal
REV. OCT 17, 2003
Page 6 of 13
PSB Series Extended Data Sheet
Positive Switching Regulators (Rugged)
Table 4: Inhibit characteristics
Characteristics
Conditions
min
–50
+2.4
typ
max
+0.8
+50
Unit
Vinh
Inhibit input voltage to keep Vo = on
regulator output voltage -
Vi min - Vi max
TC min - TC max
V DC
Vo = off
t r
Switch-on time after inhibit command
Switch-off time after inhibit command
Input current when inhibited
Vi = Vi nom
RL = Vo nom /Io nom
12
24
10
ms
t f
Ii inh
Vi = Vi nom
mA
R Control for Output Voltage Adjustment
Vo+
06036
Note: With open R input, Vo ³ Vo nom. R excludes option P.
Vref
R2
The output voltage Vo can either be adjusted with an exter-
nal voltage (Vext) or with an external resistor (R1 or R2).
The adjustment range is 0…108% of Vo nom.The minimum
differential voltage DVio min between input and output (see:
Electrical Input Data) should be maintained. Under-volt-
age lock-out = Minimum input voltage.
4000 Ω
+
–
R
G
R1
Go–
Fig. 11
Vo+
06035
Voltage adjustment with external resistor R1 or R2
Vref
4000 Ω
R
b) Vo = 0 – 100% Vo nom, using R1 between R and G (Go–):
+
–
+
R1
Vo ≈ Vo nom • –––––––––––
R1 + 4000 Ω
4000 Ω • Vo
R1 ≈ ––––––––––
Vo nom - Vo
Vext
G
Go–
c) Vo = 100 – 108% Vo nom, using R2 between R and Vo+:
Fig. 10
Voltage adjustment with Vext between R and G (Go–)
4000 Ω • Vo • (Vo nom – 2.5 V)
R2 ≈ ––––––––––––––––––––––––
2.5 V • (Vo – Vo nom
)
a) Vo = 0 – 108% Vo nom, using Vext between R and G (Go–)
Vo nom • 2.5 V • R2
Vo ≈ ––––––––––––––––––––––––––––––––
2.5 V • (R2 + 4000 Ω) – Vo nom • 4000 Ω
Vo
ext ≈ 2.5 V • –––––
Vo nom
Vext
–––––
2.5 V
V
Vo ≈ Vo nom
•
LED Output Voltage Indicator
Caution: To prevent damage Vex should not exceed
20 V, nor be negative and R2 should never be less than
47 kΩ.
A yellow output indicator LED shines when the output volt-
age is higher than approx. 3 V.
REV. OCT 17, 2003
Page 7 of 13
PSB Series Extended Data Sheet
Positive Switching Regulators (Rugged)
Electromagnetic Compatibility (EMC)
Electromagnetic Immunity
General condition: Case not earthed.
Table 5: 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 5
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
3
contact discharge 6000 Vp
to case
330 Ω
10 positive and
10 negative
discharges
yes
B 4 5
Electromagnetic IEC/EN
3
4
antenna
i/c, +i/–i
10 V/m
AM 80%
1 kHz
80 - 1000 MHz
yes
yes
A
field
61000-4-3
Electrical fast
transient/burst
IEC/EN
61000-4-4
4000 Vp bursts of 5/50 ns 50 Ω
5 kHz rep. rate
60s positive
60s negative
bursts per
A 4 5
transients with
15 ms burst
coupling mode
duration and a
300 ms period
Surge
IEC/EN
61000-4-5
2
3
i/c
1000 Vp
500 Vp
1.2/50 µs
12 Ω
2 Ω
5 pos. and 5 neg.
surges per
coupling mode
yes
yes
A 4
A
+i/–i
Conducted
disturbances
IEC/EN
61000-4-6
i, o, signal wires 140 dBµV
AM 80%
1 kHz
150 Ω
0.15 - 80 MHz
(10 VAC)
2
1 For related and previous standards see: Technical Information: Safety & EMC. i = input, o = output, c = case.
3 A = Normal operation, no deviation from specifications, B = Normal operation, temporary deviation from specs possible.
4 Option L neccessary. 5 With option C, manual reset might be necessary.
Electromagnetic Emission
For emission levels refer to Electrical Input Data.
[dBµV]
90
07008
80
EN 55022 A
EN 55022 B
70
60
50
40
30
20
10
Fig. 12
0
MHz
Typical disturbance voltage (quasi-peak) at the input
according to EN 55011/22 measured at Vi nom and Io nom
.
REV. OCT 17, 2003
Page 8 of 13
PSB Series Extended Data Sheet
Positive Switching Regulators (Rugged)
Immunity to Environmental Conditions
Table 6: 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 7: Temperature specifications, valid for air pressure of 800 – 1200 hPa (800 – 1200 mbar)
Temperature
Standard -7
Option -9
Characteristics
Conditions
Operational 1
min
max
71
min
–40
–40
–55
max
71
Unit
TA
TC
TS
Ambient temperature
–25
–25
–40
°C
Case temperature
95
95
Storage temperature
Non operational
100
100
1 See: Thermal Considerations
Table 8: MTBF and device hours
MTBF
Ground Benign
Ground Fixed
Ground Mobile
TC = 50°C
Device Hours 1
MTBF acc. to MIL-HDBK-217F
TC = 40°C
624 000
TC = 40°C
207 000 h
TC = 70°C
96 000 h
46 000 h
13 000 000 h
1 Statistical values, based on an average of 4300 working hours per year and in general field use
REV. OCT 17, 2003
Page 9 of 13
PSB Series Extended Data Sheet
Positive Switching Regulators (Rugged)
Mechanical Data
Dimensions in mm. Tolerances ±0.3 mm unless otherwise specified.
European
Projection
09013
Yellow output voltage
LED indicator
Potentiometer
(option P)
V
i
+
G
i
–
G
o
–
Vo+
U
o
i
U
G
R
o
106 ±1
101(for M3 mounting screws)
5 ±0.5
Measuring point of
case temperature TC
Fig. 13
Case B02, weight 230 g
Aluminium,
(4.7)
35
(4.7)
10 10 (13.5)
10.6
20
12.5 ±1
black finish and self cooling
Safety and Installation Instructions
Installation Instruction
Cleaning Agents
Installation of the switching regulators must strictly follow
the national safety regulations in compliance with the en-
closure, mounting, creepage, clearance, casualty, mark-
ings and segregation requirements of the end-use applica-
tion.
In order to avoid possible damage, any penetration of
cleaning fluids is to be prevented, since the power sup-
plies are not hermetically sealed.
Protection Degree
The protection degree is IP 20.
Check for hazardous voltages before altering any connec-
tions. Connections can be made using fast-on or soldering
technique.
Standards and Approvals
The input and the output circuit are not separated, i.e. the
negative path is internally interconnected!
All switching regulators are UL recognized according to UL
1950, UL 1012 and EN 60950 and UL recognized for
Canada to CAN/CSA C22.2 No. 234-M90.
The units should be connected to a secondary circuit.
Do not open the module.
The units have been evaluated for:
• Building in,
• Operational insulation from input to output and input/
output to case,
• The use in an overvoltage category II environment,
• The use in a pollution degree 2 environment.
Ensure that a unit failure (e.g. by an internal short-circuit)
does not result in a hazardous condition. See also: Safety
of operator accessible output circuit.
REV. OCT 17, 2003
Page 10 of 13
PSB Series Extended Data Sheet
Positive Switching Regulators (Rugged)
The switching regulators are subject to manufacturing
surveillance in accordance with the above mentioned UL
and CSA and with ISO 9001 standards.
This test is performed as factory test in accordance with
IEC/EN 60950 and UL 1950 and should not be repeated in
the field. Power-One will not honour any guarantee claims
resulting from electric strength field tests.
Isolation
Electric strength test voltage between input intercon-
nected with output and case: 1500 VDC, 1 s.
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
However, it is the sole responsibility of the installer or user
to assure the compliance with the relevant and applicable
safety regulations.
The following table shows some possible installation con-
figurations, compliance with which causes the output cir-
cuit of the switching regulator to be an SELV circuit ac-
cording to IEC/EN 60950 up to a nominal output voltage of
30 V, or 48 V if option C is fitted.
More information is given in Technical Information: Safety
& EMC.
Table 9: Insulation concept leading to an SELV output circuit
Conditions Front end
Switching regulator
Result
Supply
voltage
Minimum required grade Maximum Minimum required safety Measures to achieve the
Safety status of
the switching
regulator output
circuit
of isolation, to be provided DC output status of the front end
specified safety status of the
output circuit
by the AC-DC front end,
voltage
output circuit
including mains supplied from the
battery charger
front end 1
≤60 V
Battery
Double or Reinforced
SELV circuit
None
SELV circuit
supply,
>60 V
Earthed hazardous voltage Input fuse 3 and non
Earthed SELV
circuit
considered
as secon-
dary circuit
2
5
secondary circuit
Unearthed hazardous
voltage secondary circuit 5 non accessible case 5
accessible case
Input fuse 3 and unearthed,
Unearthed SELV
circuit
Hazardous voltage
secondary circuit
Input fuse 3 and earthed output Earthed SELV
circuit 4 and non accessible
case 5
circuit
Mains
-250 V AC
Basic
≤60 V
Earthed SELV circuit 4
ELV circuit
None
Input fuse 3 and earthed output
circuit 4 and non 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 conductor to 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. If option C is fitted, a suitable fuse is already built-in in the Vi+ line.
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. OCT 17, 2003
Page 11 of 13
PSB Series Extended Data Sheet
Positive Switching Regulators (Rugged)
Description of Options
-9 Extended Temperature Range
L
Input Filter
The operational ambient temperature range is extended
to TA = –40 to 71°C. (TC = –40 to 95°C, TS = –55 to 100°C.)
Option L is recommended to reduce superimposed inter-
ference voltages and to prevent oscillations, if input lines
exceed approx. 5 m in total length. The fundamental wave
(approx. 120 kHz) of the reduced interference voltage be-
tween Vi+ and Gi– has, with an input line inductance of
5 µH, a maximum magnitude of 80 mVrms. A reduction can
be achieved by insertion of a capacitor across the input
(e.g. plastic foil between Vi+ and Gi–).
P
Potentiometer
Option P excludes R-function. The output voltage Vo can
be adjusted with a screwdriver in the range from 92 -
108% Vo nom
.
However, the minimum differential voltage DVi o min be-
tween input and output voltages as specified in: Electrical
Input Data should be maintained.
The input impedance of the switching regulator at 120
kHz is about 17Ω. The harmonics are small in comparison
with the fundamental wave. See also: Electrical Input
Data: RFI.
With option L, the maximum permissible additionally su-
perimposed ripple ui of the input voltage (rectifier mode) at
a specified input frequency f i has the following values:
ui max = 10 Vpp at 100 Hz or Vpp = 1000 Hz/f i • 1V
C
Thyristor Crowbar
This option is recommended to protect the load against
power supply malfunction, but it is not designed to sink ex-
ternal currents.
Note: As a central overvoltage protection device, the
crowbar is usually connected to the external load via dis-
tributed inductance of the lines. For this reason, the over-
voltage at the load can temporarily exceed the trigger volt-
age Vo c. Depending on the application, further decentral-
ized overvoltage protection elements may have to be used
additionally. For further information see: Technical Infor-
mation: Application Notes.
A fixed-value monitoring circuit checks the output voltage
Vo. When the trigger voltage Vo c is reached, the thyristor
crowbar triggers and disables the output. It may be deacti-
vated by removal of the input voltage. In case of a switch-
ing transistor defect, an internal fuse prevents excessive
current.
Table 10: Crowbar trigger levels
Characteristics
Conditions
5.1 V
12 V
15 V
24 V
36 V
48 V
Unit
min max
min max
min max
min max
min max
min max
Vi min - Vi max
Io = 0 - Io nom
TC min - TC max
Vo c Trigger voltage
5.8 6.8
1.5
13.5 16
1.5
16.5 19
1.5
27
31
40 45.5
1.5
55
60
V
ts
Delay time
1.5
1.5
µs
Accessories
A variety of electrical and mechanical accessories are
available including:
– PCB-tags and isolation pads for easy and safe PCB-
mounting.
– Ring core chockes for ripple and interference reduction.
For more detailed information please refer to: Accessory
Products on the Power-One homepage.
REV. OCT 17, 2003
Page 12 of 13
PSB Series Extended Data Sheet
Positive Switching Regulators (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, 14 Oct. 2003
Power-One AG
Rolf Baldauf
Johann Milavec
Director Engineering
Director Projects and IP
REV. OCT 17, 2003
Page 13 of 13
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