E
Technical Specification
PKB 4000A series
Direct Converters
Input 36-72 V, Output up to 30 A /
125
W
5.0V, 25A /125W Electrical Specification
T
P1
= -30 to +90ºC, V
I
= 36 to 72 V, sense pins connected to output pins unless otherwise specified under Conditions.
Typical values given at: T
P1
= +25°C, V
I
= 53 V
I
max I
O
, unless otherwise specified under Conditions.
Additional C
in
= 33 µF. See Operating Information section for selection of capacitor types.
Characteristics
Conditions
min
typ
V
I
V
Ioff
V
Ion
C
I
P
O
Input voltage range
Turn-off input voltage
Turn-on input voltage
Internal input capacitance
Output power
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
V
Oi
Power Dissipation
Input idling power
Input standby power
Switching frequency
Output voltage initial setting and
accuracy
Output adjust range
V
O
Output voltage tolerance band
Line regulation
Load regulation
V
tr
t
tr
t
r
t
s
t
f
Load transient
voltage deviation
Load transient recovery time
Ramp-up time
Start-up time
(from 10−90 % of V
Oi
)
(from V
I
connection to 90 % of V
Oi
)
9
EN/LZT 146
420
R3A
March
2014
© Ericsson AB
PKB 4111A PI
max
72
32
35
125
Unit
V
V
V
μF
W
36
Decreasing input voltage
Increasing input voltage
30
33
0
93.3
92.6
93.5
92.6
10.0
2.4
0.1
162
4.90
4.0
4.85
±3
±3
±160
50
9
13
0.5
5
13
0.3
5
0
T
P1
< max T
P1
T
P1
= 25ºC, see Note 3
T
P1
= 25ºC, see Note 4
See ripple & noise section,
max I
O
, V
Oi
T
P1
= +25°C, V
I
= 53 V, 0-100 % of
max I
O
0
60
6.3
32
38
180
5.00
31
34
5.7
%
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
T
P1
= +25°C, V
I
= 53 V, I
O
= 25 A
See operating information (see Note
1)
0-100 % of max I
O
max I
O
V
I
= 53 V, 0-100 % of max I
O
V
I
= 53 V, Load step 25-75-25 % of
max I
O
, di/dt = 1 A/
μ
s
See Note 2
0-100 % of max I
O
max I
O
I
O
= 0 A
max I
O
max I
O
I
O
= 0 A
13.5
W
W
W
196
5.10
5.5
5.15
±10
±10
±250
kHz
V
V
V
mV
mV
mV
µs
ms
ms
ms
s
ms
ms
s
V
I
shut-down fall time
RC start-up time
(from V
I
off to 10 % of V
O
)
t
RC
I
O
I
lim
I
sc
C
out
V
Oac
OVP
RC shut-down fall time
Output current
Current limit threshold
Short circuit current
(from RC off to 10 % of V
O
)
25
A
A
A
Recommended Capacitive Load
Output ripple & noise
Over voltage protection
2500
120
7.4
µF
mVp-p
V
Note 1: At trim-up, the minimum V
In
/V
out
ratio must be kept, i.e. 5 % trim up require V
In
> 37.8 V
Note 2: 2500uF; ESR value 10mΩ
Note 3: Constant current V
o
< 0.5 V
Note 4: See Operating Information Section
ERICSSON [ ERICSSON ]
