E
MICMALE
Approved
Ericsson Internal
PRODUCT SPECIFICATION
No.
2 (10)
Prepared (also subject responsible if other)
2/1301-BMR 628 Uen
Checked
Date
5
Reference
PKD 4000E
SI
series
MPM/BK/P (Natalie Johansson)
DC/DC converters, Input 36-75 V, Output up to
20
A/50 W
(EANDKUL)
2007-04-24
EN/LZT 146
375
R2B
July
2008
Rev
A
© Ericsson Power Modules AB
1.2 V/20 A Preliminary Electrical Specification
T
ref
= -25 to +90ºC, V
I
= 36 to 75 V, sense pins connected to output pins 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
V
I
V
Ioff
V
Ion
C
I
P
O
SVR
Input voltage range
Turn-off input voltage
Turn-on input voltage
Internal input capacitance
Output power
Supply voltage rejection (ac)
Output voltage initial setting
f = 100 Hz sinewave, 1 Vp-p
50 % of max I
O
η
Efficiency
max I
O
50 % of max I
O
, V
I
= 48 V
max I
O
, V
I
= 48 V
P
d
P
li
P
RC
f
s
Power Dissipation
Input idling power
Input standby power
Switching frequency
max I
O
I
O
= 0 A, V
I
= 53 V
V
I
= 53 V (turned off with RC)
0-100 % of max I
O
162
80.5
0
66
85
84
85.5
84
4.6
1.1
0.7
180
Decreasing input voltage
Increasing input voltage
2.5
Conditions
min
36
29
typ
PKD 4218LE SI
max
75
36
24
Unit
V
V
V
µ
F
W
dB
%
W
W
W
198
kHz
V
Oi
Output voltage initial setting and
T
ref
= +25°C, V
I
= 53 V, I
O
= 20 A
accuracy
Output adjust range
Output voltage tolerance band
See operating information
10-100% of max I
O
I
O
= 0 A
max I
O
V
I
= 53 V, 1-100% of max I
O
V
I
= 53 V, Load step 25-75-25 % of
max I
O
, di/dt = 1 A/
µ
s
1.19
1.08
1.16
1.16
1.20
1.21
1.32
1.24
1.24
5
5
V
V
V
V
mV
mV
mV
µs
ms
ms
m
s
V
O
Idling voltage
Line regulation
Load regulation
Load transient
voltage deviation
Load transient recovery time
Ramp-up time
(from 10−90 % of V
Oi
)
V
tr
t
tr
t
r
t
s
t
f
±300
60
3
Start-up time
(from V
I
connection to 90% of V
Oi
)
10-100% of max I
O
6
max I
O
I
O
= 0 A
max I
O
max I
O
I
O
= 0 A
0
T
ref
< max T
ref
T
ref
= 25ºC, V
O
< 0.5 V
See ripple & noise section,
V
I
= 53 V, I
O
= 20 A
15
32
40
100
0.5
10
4
0.5
10
20
Vin shutdown fall time
(from V
I
off to 10% of V
O
)
s
ms
ms
s
A
A
A
mVp-p
RC start-up time
t
RC
I
O
I
lim
I
sc
V
Oac
RC shutdown fall time
(from RC off to 10% of V
O
)
Output current
Current limit threshold
Short circuit current
Output ripple & noise
ERICSSON [ ERICSSON ]
