
2
EN/LZT 146 127 R1A Ericsson Microelectronics AB, December 2001
1)
The input voltage range 18…72 V dc meets
the European Telecom Standard prETS
300 132-2 Nominal input voltage range
in 48 V and 60 V dc power systems,
– 40.5…–57.0 V and –50.0… – 72.0 V
respectively. Absolute max continuous input
voltage is 75 Vdc.
2)
The power module will operate down to
35V, when VI decreases, but will turn on to
at VI
36V, when VI increases
(see also Operating information).
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 Output data
or Electrical Characteristics. If exposed to
stress above these limits, function and
performance may degrade in an unspecified
manner.
Absolute Maximum Ratings
Input TC < TCmax unless otherwise specified
Characteristics
max
Unit
mW
Input stand-by power
PRC
Conditions
min
typ
VI
Input voltage range1)
72
V
18
VIoff
Turn-off input voltage
16.0
V
15.0
(See typical characteristics)
VIon
Turn-on input voltage
17.4
V
17.9
(See typical characteristics)
CI
Input capacitance
1.4
mF
(VI = 27V)
(VI = 53 V)
413
400
IO =0, TC = – 30…+ 90 °C
PIi
Input idling power
TC = – 30…+ 90 °C
RC connected to pin 17
(VI = 27V)
(VI = 53 V)
17
66
NOTES:
Characteristics
Unit
Isolation voltage
(input to output test voltage)
VISO
TC
Case temperature at full output power
–45
min
max
+100
°C
TS
Storage temperature
–55
+125
°C
VI
Continuous input voltage1)
–0.5
+75
V dc
1,500
Vdc
Wtr
Transient input energy
0.01
Ws
VRC
Remote control voltage pin 10,11 ref. to pin 17.
+16
V dc
–5
Vadj
Output adjust voltage pin 8, 9 ref. to pin 17.
+40
V dc
–5
Connections
Pin
Designation
Function
1
Out 1
Output 1(+).
2
Rtn
Output return.
3-6
N C
Not connected. Galvanically Isolated from input pins.
7
Sync
Synchronization input.
8Vadj
Output voltage adjust.
9
NOR
Connection of Nominal Output voltage Resistor.
10
TOA
Turn-on/off input voltage adjust.
11
RC
Remote control and turn-on/off input voltage adjust.
12–16
N C
Not connected. Galvanically isolated from input pins.
17
–In
Negative input.
18
+In
Positive input.
18 17 16 15 14 13 12 11 10
1
2
3
4
5
6
7
8
9