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PDF PKE4231PI Data sheet ( Hoja de datos )
| Número de pieza | PKE4231PI | |
| Descripción | 25-40 W DC/DC Power Modules | |
| Fabricantes | Ericsson | |
| Logotipo |  |
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PKE 4000 I
25–40 W DC/DC Power Modules
48 V Input Series
• Single, dual and triple output
• 10.7 mm (0.42 in.), allows 0.8 in.
board spacing
• 1,500 V dc isolation voltage
• MTBF > 2 million hours at +75 °C
case temperature
• Complete, no extra filters or heatsinks
required
The 25–40 watts PKE 4000 series hybrid DC/DC
power modules are especially designed for decentra-
lized 48/60 VDC power distribution systems with
distributed on-board DC/DC converters in
applications with high temperature and isolation
requirements.
By using a thickfilm technology, which provides a
high degree of integration as well as an efficient
thermal management and by utilizing a 300 kHz
switching frequency technology based on proprietary
drive & control chips, the highly reliable products
conform to the most stringent telecom and datacom
requirements in harsh environment applications.
Input to output isolation is as high as 1,500 Vdc and
mechanical ruggedness in conformance to IEC 68-2
– is close to the requirements for discrete
components. The converters can operate in free
convection with full output power at ambient
temperatures from –45 to +85°C, making the
products ideal for the most de-manding temperature
requirements in both indoor and outdoor tele/
datacom applications.
These products are manufactured using highly
automated manufacturing lines with a world-class
quality commitment and a five-year warranty.
Ericsson Microelectronics AB has been an ISO 9001
certified supplier since 1991. For a complete product
program please reference the back cover.
E
1 page  
PKE 4210 PI
TC = 0…+95°C, VI = 38 ...72V unless otherwise specified.
Output
Characteristics
Conditions
Output voltage initial
setting and accuracy
VOi
Output adjust range1)
TC = +25°C, IO = 7.6 A, VI = 50 V
Output voltage
VO tolerance band
Idling voltage
Line regulation
Load regulation
ttr
Load transient
recovery time
Vtr Load transient voltage
Long term drift
included
IO = 0.1 …1.0 ×IO max
IO = 25 mA
IO = IO max
VI = 38…72 V
IO = 0.1 …1.0 × IOmax, VI = 50 V
IO = 0.1 … 1.0 × IO max, VI = 50 V
load step = 0.5 × IOmax
di £0.1A/ms
dt
tr Ramp-up time
ts Start-up time
IO =
0.1…1.0 × IO max
0.1 …0.9 × VO
From VI connection
to VO = 0.9 × VOi
IO Output current
PO max Max output power2)
Ilim
Current limiting
threshold
TC < TC max
Isc
VO ac
Short curcuit current1)
Output ripple
IO = IO max
20 Hz …5 MHz
SVR
Supply voltage
rejection (ac)
f = 100 Hz sine wave, 1 Vp-p, VI = 50 V
(SVR = 20 log (1 Vp-p/VOp-p))
1) See Operating Information.
2) See Typical Characteristics, Power derating.
min
3.28
3.14
3.20
0
25
102
50
Output 1
typ
3.30
50
–480
270
15
30
70
max
3.32
3.47
3.42
4.0
40
40
7.6
90
Unit
V
V
V
V
mV
mV
ms
mV
mV
ms
ms
A
W
%
A
mVp-p
dB
Miscellaneous
Characteristics
h Efficiency
Pd Power dissipation
Conditions
IO = IOmax, VI = 50 V, TC = +25°C
IO = IO max, VI = 50 V, TC = +25°C
min
typ
max
Unit
75 78
%
7.1 8.3 W
EN/LZT 146 26 R1A (Replaces EN/LZT 137 31 R1) © Ericsson Microelectronics AB, June 2000
5
5 Page 
PKE 4232 PI
TC = 0…+95°C, VI = 38...72 V unless otherwise specified. IO1nom = 3.1 A, IO2,3nom = 0.31 A
Output
Output
Characteristics
Conditions
Output 1
min typ max
Output 2
min typ max
Output 3
min typ max
Unit
Output voltage initial
setting and accuracy
VOi TC = +25 °C, IO = IO nom, VI = 50 V
Output adjust range1)
5.10 5.13 5.16 14.70 15.15 15.60 –14.80 –15.25 –15.70
4.87
5.39 14.39
15.91 –14.49
–16.01
V
V
Output voltage
VO tolerance band
Idling voltage
Long term drift
included
IO 1 = 0.1…1.0 × IOnom,
IO 2, 3 = IO nom
5.03
IO = 25 mA
5.27 13.69
5.40
16.79 –13.71
23.0
–16.97
–23.0
V
V
Line regulation
IO = IOnom
VI = 38…72V
Load regulation
IO1 = 0.1 …1.0 × IO nom, IO2, 3 = IO nom,
VI = 50 V
ttr
Load transient
recovery time
IO1 = 0.1 …1.0 × IO nom, VI = 50 V
load step = 0.8 × IO 1nom,
IO2, IO3 =IOnom
Vtr Load transient voltage di £0.1A/ms
dt
50
50
50
–170
110
180 180 mV
mV
ms
mV
mV
tr Ramp-up time
0.1 …0.9 × VO
15
15
15 ms
IO =
ts Start-up time
0.1 …1.0 × IO nom,
VI = 50 V
From VI
connection to
VO = 0.9 × VOi
30
30
30 ms
IO Output current
0 5.0 0 0.8 0 0.8 A
POmax Max total output power2)
min 25W, max 15W on Out 2+ Out 3
W
Ilim
Current limiting
threshold
TC < TC max
min 102 ´ PO max3)
%
Ilim Short circuit current1)
A
VO ac
SVR
Output ripple
Supply voltage
rejection (ac)
IO = IO nom
20 Hz…5 MHz
60 80
80 140
80 140 mVp-p
f = 100 Hz sine wave, 1 Vp-p, VI = 50 V
(SVR = 20 log (1 Vp-p/VOp-p))
50
40
40
dB
1) See Operating Information.
2) See Typical Characteristics, Power derating.
3) Ilim on each output is set by the total load.
Miscellaneous
Characteristics
h Efficiency
Pd Power dissipation
Conditions
IO = IOnom, VI = 50 V, TC = +25°C
IO = IO nom, VI = 50 V, TC = +25°C
min
typ
max
Unit
80 85
%
4.4 6.3 W
EN/LZT 146 26 R1A (Replaces EN/LZT 137 31 R1) © Ericsson Microelectronics AB, June 2000
11
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet PKE4231PI.PDF ] | |
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