PKB 4713 PINB
General
Characteristics
T
Pcb
T
S
V
I
V
ISO
V
Trans
V
RC
V
adj
Absolute Maximum Ratings
min
– 40
– 55
– 0.5
2250
100
-0.5
-0.5
15
2 x V
o
max
+110
+125
+ 80
Unit
°C
°C
V dc
V dc
V dc
Vdc
Vdc
Safety
Maximum Operating Pcb Temperature
Storage temperature
Input voltage
Isolation voltage (input to output test voltage)
Input Voltage Transient
Remote control voltage pin 2
(10 usec)
(measured from pin 1)
Output adjust voltage pin 6 (measured from pin 5)
Note:
Stress in excess of Absolute Maximum Ratings may cause permanent damage. Absolute Maximum Ratings,
sometimes referred to as "no destruction limits", are normally tested with one parameter at a time
exceeding the limits of the Output data or Electrical Characteristics.
Input T
Pcb
< T
Pcb
Characteristics
V
I
V
I off
max
Conditions
I
O
= 0...I
Omax
Ramping from higher
voltage
Ramping from lower
voltage, I
O
= 0...I
Omax
min
38
30
33.5
typ
max
75
35
Unit
Vdc
Vdc
Input voltage range
1)
Turn-off input voltage
V
Ion
Turn-on input voltage
32
34.5
36
Vdc
C
I
I
Iac
I
I max
P
Ii
P
RC
V
TRIM
Input capacitance
Reflected ripple current
Maximum input current
Input idling power
Input stand-by power
(turned off with RC)
Maximum input voltage
on trim pin
5 Hz to 20 MHz
V
I
= V
Imin,
I
O
=0, V
I
= 53 V
V
I
= 53V, RC open
72 W
2.18
10
2.38
1.6
0.055
6.6
uF
mA
p-p
A
W
W
Vdc
Note:
1) The input voltage range 38...75 V meets the requirements in the European Telecom Standard prETS 300
132-2 for Normal input voltage range in 48 V and 60 V DC power systems, – 40.5...–57.0 V and –50.0...–72.0 V
respectively.
Environmental Characteristics
Characteristics
Random
Vibration
Sinusoidal
Vibration
Test procedure & conditions
IEC 68-2-34E
D
Frequency
Spectral density
Duration
Frequency
Amplitude
Acceleration
Number of cycles
Peak acceleration
Duration
Temperature
Number of cycles
Temperature
Humidity
Duration
Temperature, solder
Duration
Water
Isopropyl alcohol
Method
10...500 Hz
0.025 g
2
/Hz
10 min each direction
10...500 Hz
0.75mm
10g
10 in each axis
100g
3ms
-40°C… +125°C
300
85°C
85% RH
1000 hours
260°C
10…13 s
+55 ±5°C
+35 ±5°C
with rubbing
The PKB 4000 PI Series DC/DC converters
are designed in accordance with Safety
Standards IEC/EN/UL 60 950,
Safety of
Information Technology Equipment.
The PKB 4000 Series DC/DC converters are
UL
C
60 950 recognized and certified in
accordance with EN 60 950.
The DC/DC converters should be installed in
end-use equipment, in accordance with the
requirements of the ultimate application.
The input source must be isolated by
minimum Basic Insulation from the primary
circuit in accordance with IEC/EN/UL 60
950. If the input voltage to the DC/DC
converter is 75Vdc or less, then the output
remains SELV (Safety Extra Low Voltage)
under normal and abnormal operating
conditions. Single fault testing in the input
power source circuit should be performed
with the DC/DC converter connected to
demonstrate that the input voltage does not
exceed 75Vdc. If the input power source
circuit is a DC power system, the source
maybe treated as a TNV2 circuit and testing
has demonstrated compliance with SELV
limits and isolation requirements equivalent
to Basic Insulation in accordance with IEC/
EN/UL 60 950.
It is recommended that a fast blow fuse with a
rating of 5A be used at the input of each DC/
DC converter. The PKB series DC/DC
converters are approved for a maximum fuse
rating of 15A. If a fault occurs in the DC/DC
converter that imposes a short circuit on the
input power source, this fuse will provide the
following functions:
•
IEC 68-2-6 F
c
Isolate the faulty DC/DC converter from the
input source so as not to affect the
operation of other parts of the system.
Shock
(Half sinus)
Temperature
change
Accelerated
damp heat
Solder
resistability
Resistance to
cleaning solvents
IEC 68-2-27 E
a
IEC 68-2-14 N
a
IEC 68-2-3 C
a
with bias
IEC 68-2-20 T
b
1A
IEC 68-2-45 XA
Method 1
• Protect the distribution wiring from
excessive current and power loss thus
preventing hazardous overheating.
The galvanic isolation is verified in an electric
strength test. The test voltage (V
ISO
) between
input and output is 2250 Vdc for 60 seconds.
Leakage current is less than 1uA at nominal
input voltage.
The flammability rating for all construction
parts of the DC/DC converter meets UL 94V-0.
EN/LZT 108 6071 P1D ©Ericsson Inc., Power Modules , February 2003
2
ERICSSON [ ERICSSON ]
