General
Absolute Maximum Ratings
Characteristics
T
C
T
S
V
I
V
ISO
Case temperature
1)
Storage temperature
Input voltage
Isolation voltage (input to output test voltage)
Transient input energy @ T
A
= +25 °C
V
RC
V
adj
1)
min
– 45
– 55
– 0.5
500
1.3
0
0
max
+115
+125
36
Unit
°C
°C
V dc
V dc
Ws
Stress in excess of Absolute Maximum
Ratings may cause permanent damage.
Absolute MaximumRatings, sometimes
referred to as no destruction limits, are
normally tested with one parameter at a time
exceeding the limits of Output data or
Electrical Characteristics. If exposed to stress
above these limits, function and performance
may degrade in an unspecified manner.
Remote control voltage (pin 9)
Output adjust voltage (pin 10)
5
V
O
V
V
Safety
The PKA 2000 I Series DC/DC power
modules are designed in accordance with
EN 60 950,
Safety of information technology
equipment including electrical business equipment
and certified by SEMKO.
The PKA power modules are recognized by
UL and meet the applicable requirements in
UL 1950
Safety of information technology equip-
ment,
the applicable Canadian safety require-
ments and UL 1012
Standard for power sup-
plies.
The DC/DC power module shall be installed
in an end-use equipment and considerations
should be given to measuring the case tem-
perature to comply with T
C max
when in
operation. They are intended to be supplied
by isolated secondary circuitry and shall be
installed in compliance with the require-
ments of the ultimate application. If con-
nected to a 24 V DC power system reinforced
insulation must be provided in the power
supply that isolates the input from the ac
mains. The isolation in the DC/DC power
module is an operational insulation in accord-
ance with EN 60 950. One pole of the input
and one pole of the output is to be grounded
or both are to be kept floating.
The terminal pins are only intended for con-
nection to mating connectors of internal
wiring inside the end-use equipment.
The isolation voltage is a galvanic isolation
and is verified in an electric strength test.
Test voltage (V
ISO
) between input and output
is 500 V dc.
The capacitor between input and output has a
value of 10 nF and the leakage current is less
than 1
m
A @ 26 V dc.
Flammability ratings of the terminal support
and internal plastic construction details
meets UL 94V-0.
Corresponding ambient temp. range (T
A
) at full output power is –45 to +85 °C.
Input T
C
< T
C max
Characteristics
Conditions
T
C
< T
C max
V
I
Input voltage range
T
C
< + 95 °C
V
Ioff
I
I rush
I
I 2t
P
Ii
Input idling power
Input transient peak
current (transient
immunity)
PKA 2411 PIL = 30 A, 2×10
-3
A
2s
*)
PKA 2432 PIL = 30 A, 5×10
-3
A
2s
2)
min
19
19
13
typ
max
32
35
18
Unit
V
V
V
A
A
2 s
W
Turn-off input voltage
Inrush current
2)
(See Operating Information)
15
I
O
= I
Onom
5×10
-4
I
O
=0,T
C
= 0...+95°C
P< 1 kW, V
C
< 50 V,
t
r
/t
d
=10/1000
ms
0.8
20
A
Environmental Characteristics
Characteristics
Test procedure & conditions
Frequency
Amplitude
Acceleration
Number of cycles
Peak acceleration
Shock duration
Peak acceleration
Bump duration
Number of bumps
Temperature
Number of cycles
Temperature
Duration
Temperature
Humidity
Duration
10–500 Hz
0.75 mm
10 g
10 in each axis
200 g
3 ms
40 g
6 ms
1000 in 6 directions
–40°C to +125°C
10
40°C
56 days
85°C
85% RH
500 hours
Vibration
(Sinusoidal)
IEC 68-2-6 F
c
Shock
(Half sinus)
Bump
(Half sinus)
IEC 68-2-27 E
a
IEC 68-2-29 E
b
Temperature
change
Damp heat
IEC 68-2-14 N
a
IEC 68-2-3 C
a
Accelerated
damp heat
IEC 68-2-3 C
a
with bias
2
EN/LZT 146 09 R1A © Ericsson Microelectronics AB, June 2000
ERICSSON [ ERICSSON ]
