Ericsson Internal
PRODUCT SPECIFICATION 2 (5)
Prepared (also subject responsible if other) No.
MICMALE 2/1301-BMR 603 1203/1 Uen
Approved Checked Date Rev Reference
EAB/FJB/GKF (Natalie Johansson) (MICANWO)
2008-09-05 D
78V, -52V, -33V / 32W Electrical Specification
T
ref
= -30 to +95ºC, V
I
= 40 to 72 V, unless otherwise specified under Conditions.
Typical values given at: T
ref
= +25°C, V
I
= 53 V, max I
O
unless otherwise specified under Conditions.
Characteristics Conditions min typ max Unit
V
I
Input voltage range 40 53 72 V
V
Ioff
Turn-off input voltage Decreasing input voltage 33 V
V
Ion
Turn-on input voltage Increasing input voltage 34.5 V
C
I
Internal input capacitance 2
μF
P
O max
Output power 32 W
Efficiency at 50% of max power
I
O
1
= 0,015 A, I
O
2
= 0,25 A,
I
O
3 = 0,090A
80
η
Efficiency at max power
I
O
1
= 0,015 A, I
O
2
= 0,50 A,
I
O
3 = 0,090A
84
%
P
d
Power Dissipation at max power
I
O
1
= 0,015 A, I
O
2
= 0,50 A,
I
O
3 = 0,090A
6.1 W
P
li
Input idling power
I
O
= 0 A, V
I
= 53 V
2.5 W
P
RC
Input standby power
V
I
= 53 V (turned off with RC)
0.12 W
f
s
Switching frequency 510 kHz
Characteristics Conditions min / typ / max Output 1 Output 2 Output 3 Unit
V
Oi
Output voltage initial setting and
accuracy
T
ref
=+25°C, V
I
= 53 V,
I
O1
, I
O2
, I
O3
= 0.1 x I
nom
typ
78.0
+/- 2%
-52.7
+/- 1%
-33.2
+/- 1%
V
min 71.6 -49,0 -30.9 V
Output Voltage
I
O1
, I
O2
, I
O3
≥ 0.1 x I
nom
max 81.6 -54.2 -33.83 V
Idling voltage
I
O
= 0 A
typ 77 -52.5 -33.3 V
Line regulation
I
O
= I
O max,
V
I
= 42....72 V
typ 1 0.6 0.5 %
V
O
Load regulation output
T
A
= +25°C , V
I
= 53 V, I
O
=20mA
to 200 mA
max - 110 50 mV
V
tr
Load transient
voltage deviation
typ - 250 200 mV
t
tr
Load transient recovery time
I
O
= 30…60 mA, 10Hz on output
2&3
V
I
= 53 V
Slew rate = 0.01A/
μs
typ - 150 150 μs
t
r
Ramp-up time
(from 10-90% of V
Oi
)
I
O
= I
O
max, V
O
= 0.1…0.9 x V
O
typ 2.5 2.5 2.5 ms
t
s
Start-up time
(from V
I
connection to 90% of V
Oi
)
I
O
=0.1…1.0 x I
O
max, V
I
= 53 V
from V
I
connection to V
o
= 0.9 x
V
O
typ 7 7 7 ms
t
RC
RC start-up time I
O
1
= I
O
2
= 50 % of max I
O
typ 7 7 7 ms
I
O
Output current (continuous) max 80 500 800 mA
I
lim
Current limit threshold
T
C
< T
C
max
min 200mA
Total power limitation
35 W
I
sc
Short circuit current
T
ref
= 25ºC
typ - 1.2 2 A
V
O
ac
Output ripple & noise
See ripple & noise section,
max I
O
, V
Oi,
20Hz ….5MHz
max 100 100 100 mVp-p
OVP Over voltage protection
T
ref
= +25 °C, V
I
= 53 V,
0-100 % of max P
O
typ 90 -60 -38 V
E
BMR 603 1203/1
DC/DC converters, Input 40-72 V, Output 78/-52/-33 V/32W
EN/LZT 146 393 R1E September 2008
© Ericsson Power Modules AB
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