E
Technical Specification
PKB 4000A series
Direct Converters
Input 36-72 V, Output up to 30 A /
125
W
3.3V, 30A /99W 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
)
5
EN/LZT 146
420
R3A
March
2014
© Ericsson AB
PKB 4910A PI
max
72
32
35
99
Unit
V
V
V
μF
W
36
Decreasing input voltage
Increasing input voltage
30
33
0
92.4
91.0
92.7
91.0
9.8
1.8
0.1
162
3.23
2.64
3.2
±3
±5
±200
40
8
12
50
5
12
37
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
3.8
4.3
40
45
180
3.30
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
= 30 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
14
W
W
W
198
3.37
3.63
3.4
±10
±10
±350
kHz
V
V
V
mV
mV
mV
µs
ms
ms
μ
s
V
I
shut-down fall time
RC start-up time
(from V
I
off to 10 % of V
O
)
s
ms
μ
s
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
)
s
30
A
A
A
3000
120
4.8
µF
mVp-p
V
Recommended Capacitive Load
Output ripple & noise
Over voltage protection
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: 3000 uF; ESR value 5
mΩ
Note 3: Constant current V
o
< 0.5 V
Note 4: See Operating Information Section
ERICSSON [ ERICSSON ]
