Ericsson Internal
EZYPING
PRODUCT SPECIFICATION
2 (5)
Prepared (also subject responsible if other)
No.
2/1301-BMR 636 01/74 Uen
8
Technical Specification
Approved
Checked
Date
Rev
Reference
EN/LZT 146 394 R5A August 2009
PKB 4000 series
DC/DC converters, Input 36-75 V, Output 30 A/90 W
SEC/D (Betty Wu)
ESECZHW
2009-2-9
B
© Ericsson AB
1.2 V/30 A Electrical Specification
PKB 4318 PIOBNB
Tref = -40 to +90ºC, 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 μF and Cout = 0 μF. See Operating Information section for selection of capacitor types.
Characteristics
Conditions
min
36
typ
max
75
Unit
V
VI
Input voltage range
VIoff
VIon
CI
Turn-off input voltage
Turn-on input voltage
Internal input capacitance
Output power
Decreasing input voltage
Increasing input voltage
30.6
33.6
30.9
34.0
2.65
31.1
34.2
V
V
μF
W
PO
Output voltage initial setting
50 % of max IO
0
36
87
85
max IO
η
Efficiency
%
50 % of max IO, VI = 48 V
max IO, VI = 48 V
max IO
87
85
Pd
Pli
Power Dissipation
Input idling power
Input standby power
Switching frequency
6.4
1.2
0.14
170
7.7
W
W
IO = 0 A, VI = 53 V
VI = 53 V (turned off with RC)
0-100 % of max IO
PRC
fs
W
kHz
Output voltage initial setting and
accuracy
VOi
Tref = +25°C, VI = 53 V, IO = 20 A
1.18
1.20
1.22
V
Output adjust range
Output voltage tolerance band
Idling voltage
See operating information
10-100 % of max IO
IO = 0 A
1.08
1.16
1.16
1.32
1.23
1.23
10
V
V
VO
V
Line regulation
max IO
3
3
mV
mV
Load regulation
VI = 53 V, 0-100 % of max IO
10
Load transient
voltage deviation
Vtr
ttr
tr
±260
50
±320
150
10
mV
μs
VI = 53 V, Load step 25-75-25 % of
max IO, di/dt = 1 A/μs
Load transient recovery time
Ramp-up time
(from 10−90 % of VOi)
4
7
7
ms
10-100 % of max IO
Start-up time
(from VI connection to 90 % of VOi)
ts
tf
13
43
ms
max IO
IO = 0 A
max IO
0.04
8.1
ms
s
VI shut-down fall time
(from VI off to 10 % of VO)
RC start-up time
11.4
ms
tRC
max IO
0.01
11
ms
s
RC shut-down fall time
(from RCoff to 10 % of VO)
IO = 0 A
IO
Output current
0
30
37
39
A
Ilim
Isc
Current limit threshold
Short circuit current
Tref < max Tref
32
34
A
Tref = 25ºC, see Note 1
38.5
A
See ripple & noise section,
max IO, VOi
VOac
Output ripple & noise
50
80
mVp-p
V
Tref = +25°C, VI = 53 V, 0-100 % of
OVP
Over voltage protection
1.4
1.5
1.8
max IO
Note 1: Vo<0.5V
ERICSSON [ ERICSSON ]
