Ericsson Internal
PRODUCT SPECIFICATION
2 (5)
Prepared (also subject responsible if other)
No.
ESHUHAN
2/1301-BMR 636 01/74 Uen
Approved
Checked
Date
Rev
Reference
SEC/D (Alice Su)
EQUENXU
2008-6-4
A
1.2 V/30 A Electrical Specification
PKB 4318 PIOBNB
Tref = -40 to +90C, VI = 36 to 75 V, sense pins connected to output pins unless otherwise specified under Conditions.
Typical values given at: Tref = +25°C, VI= 53 VI max IO, unless otherwise specified under Conditions.
Additional Cin = 0 F and Cout = 0 F. See Operating Information section for selection of capacitor types.
Characteristics
Conditions
min
typ
max
Unit
VI
Input voltage range
36
75
V
VIoff
Turn-off input voltage
Decreasing input voltage
30.6
30.9
31.1
V
VIon
Turn-on input voltage
Increasing input voltage
33.6
34.0
34.2
V
CI
Internal input capacitance
2.65
F
PO
Output power
Output voltage initial setting
0
36
W
50 % of max IO
87
max IO
85
50 % of max IO, VI = 48 V
87
η
Efficiency
max IO, VI = 48 V
85
%
Pd
Power Dissipation
max IO
6.4
7.7
W
Pli
Input idling power
IO = 0 A, VI = 53 V
1.2
W
PRC
Input standby power
VI = 53 V (turned off with RC)
0.14
W
fs
Switching frequency
0-100 % of max IO
170
kHz
VOi
Output voltage initial setting and
accuracy
Tref = +25°C, VI = 53 V, IO = 20 A
1.18
1.20
1.22
V
Output adjust range
See operating information
1.08
1.32
V
Output voltage tolerance band
10-100 % of max IO
1.16
1.23
V
Idling voltage
IO = 0 A
1.16
1.23
V
Line regulation
max IO
3
10
mV
VO
Load regulation
VI = 53 V, 0-100 % of max IO
3
10
mV
Vtr
Load transient
voltage deviation
±260
±320
mV
ttr
Load transient recovery time
VI = 53 V, Load step 25-75-25 % of
max IO, di/dt = 1 A/s
50
150
s
tr
Ramp-up time
(from 1090 % of VOi)
4
7
10
ms
ts
Start-up time
(from VI connection to 90 % of VOi)
10-100 % of max IO
7
13
43
ms
max IO
0.04
ms
tf
VI shut-down fall time
(from VI off to 10 % of VO)
IO = 0 A
8.1
s
RC start-up time
max IO
11.4
ms
max IO
0.01
ms
tRC
RC shut-down fall time
(from RC off to 10 % of VO)
IO = 0 A
11
s
IO
Output current
0
30
A
Ilim
Current limit threshold
Tref < max Tref
32
34
37
A
Isc
Short circuit current
Tref = 25C, see Note 1
38.5
39
A
VOac
Output ripple & noise
See ripple & noise section,
max IO, VOi
50
80
mVp-p
OVP
Over voltage protection
Tref = +25°C, VI = 53 V, 0-100 % of
max IO
1.4
1.5
1.7
V
Note 1: Vo<0.5V
E
PKB 4000 series
DC/DC converters, Input 36-75 V, Output 30 A/90 W
EN/LZT 146 394 R4A Sep 2008
Ericsson Power Modules AB
Technical Specication
5