Ericsson Internal
EGLANDY
PRODUCT SPECIFICATION
2 (5)
Prepared (also subject responsible if other)
No.
2/1301-BMR 636 01/64 Uen
11
Technical Specification
Approved
Checked
Date
Rev
Reference
EN/LZT 146 394 R4A Sep 2008
PKB 4000 series
DC/DC converters, Input 36-75 V, Output 30 A/90 W
SEC/D (ALICE SU)
ESECZHW
2008-6-19
A
© Ericsson Power Modules AB
1.8 V/25 A Electrical Specification
PKB 4418 PINB
Tref = -40 to +90ºC, V = 36 to 75 V, sense pins connected to output pins unless otherwise specified under Conditions.
I
Typical values given at: Tref = +25°C, V = 53 V max IO, unless otherwise specified under Conditions.
I
I
Additional Cin = 0 µF and Cout = 0 µF. See Operating Information section for selection of capacitor types.
Characteristics
Input voltage range
Conditions
min
36
typ
max
Unit
V
V
I
75
32
35
V
Turn-off input voltage
Turn-on input voltage
Internal input capacitance
Output power
Decreasing input voltage
Increasing input voltage
30
31
34
V
Ioff
V
Ion
33
V
CI
3.35
μF
W
PO
Output voltage initial setting
50 % of max IO
max IO
0
45
90
89
η
Efficiency
%
50 % of max IO, V = 48 V
89.5
89
I
max IO, V = 48 V
I
Pd
Pli
Power Dissipation
Input idling power
Input standby power
Switching frequency
max IO
5.5
7.5
W
W
IO = 0 A, V = 53 V
1.5
I
PRC
fs
V = 53 V (turned off with RC)
I
0.12
195
W
0-100 % of max IO
kHz
Output voltage initial setting and
accuracy
VOi
Tref = +25°C, V = 53 V, IO = 25 A
1.76
1.8
1.83
V
I
Output adjust range
Output voltage tolerance band
Idling voltage
See operating information
10-100 % of max IO
IO = 0 A
1.44
1.76
1.77
1.98
1.84
1.84
10
V
V
VO
V
Line regulation
max IO
3
3
mV
mV
Load regulation
V = 53 V, 0-100 % of max IO
I
10
Load transient
voltage deviation
V
±250
30
±350
100
15
mV
µs
tr
V = 53 V, Load step 25-75-25 % of
max IO, di/dt = 1 A/μs
I
ttr
tr
Load transient recovery time
Ramp-up time
(from 10−90 % of VOi)
3
6
8
ms
10-100 % of max IO
Start-up time
ts
tf
14
25
ms
(from V connection to 90 % of VOi)
I
max IO
0.05
2.5
ms
V shut-down fall time
I
(from V off to 10 % of VO)
I
IO = 0 A
s
RC start-up time
max IO
max IO
IO = 0 A
12
0.04
2.5
ms
ms
s
tRC
RC shut-down fall time
(from RC off to 10 % of VO)
IO
Output current
0
25
35
38
A
I
lim
Current limit threshold
Short circuit current
Tref < max Tref
26
30
35
A
Isc
Tref = 25ºC, see Note 1
A
See ripple & noise section,
max IO, VOi
VOac
Output ripple & noise
30
70
mVp-p
V
Tref = +25°C, V = 53 V, 0-100 % of
I
OVP
Over voltage protection
2.1
2.2
2.5
max IO
Note 1: Vo<0.5V
ERICSSON [ ERICSSON ]
