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PDF PKM4000A Data sheet ( Hoja de datos )
| Número de pieza | PKM4000A | |
| Descripción | DC/DC Converter | |
| Fabricantes | Ericsson Microelectronics | |
| Logotipo |  |
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PKM 4000A
Advanced Specification
25-30A DC/DC Power Modules
48 V Input; 1.5V, 1.8V, 2.5V, and 3.3V Outputs
• High Efficiency 90% Typ at full load
• Fast Dynamic Response, 100us,
+/- 150 mVpeak Typ
• Low Output Ripple, 60mVp-p Typ
• High power density, 56.9 W/in3
• Wide input voltage range (36-75V)
• Industry standard footprint & pin-out
• 1,500 Vdc isolation voltage
• Max case temperature +100oC
• UL 1950/ULC 1950 Recognized
• Basic Isolation Rating per EN60 950
(December 2000) verified by Underwriters
Laboratory
• TUV to EN60 950 Type Approved
The PKM 4000A series of DC/DC power modules
represents another Ericsson "industry first" achieve-
ment in the continued development of our "third
generation" of high density, high efficiency DC/DC
power modules in an industry standard quarter
brick package with unparalleled performance.
These breakthrough features have been achieved by
using the most advanced patented topology, ultiliz-
ing integrated magnetics and synchronous rectifica-
tion on a low resistivity multilayer PCB.
The product features fast dynamic response times
and low output ripple, which are important param-
eters when supplying low voltage logics. The PKM
4000A series is especially suited for limited board
space and high dynamic load applications such as
demanding microprocessors.
E
Ericsson's PKM 4000A Power Modules address the
converging "New Telecoms" market by specifying
the input voltage range in accordance with ETSI
specifications. The PKM 4000A series also offers
over-voltage protection, under voltage protection,
over temperature protection, soft-start, and is short
circuit proof.
These modules are manufactured using highly auto-
mated manufacturing lines with a world-class quali-
ty commitment and a five-year warranty. Ericsson
Inc., Microelectronics has been an ISO 9001 certi-
fied supplier since 1991.
For a complete product program please reference the back cover.
1 page  
PKM 4719A PI (75W)
TC = –40…+100°C, VI = 36 ...75V unless otherwise specified.
Output
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Characteristics
Conditions
Output voltage initial
setting and accuracy
VOi
Output adjust range
VO Output voltage
tolerance band
Line regulation
Load regulation
Vt r Load transient
voltage deviation
tt r Load transient
recovery time
ts Start-up time
TC =+25 °C, VI = 53 V, IO =IOmax
IO =IOmax
IO=0 to IOmax
IO = IO max
VI = 53V, IO=0 to IOmax,
Load step = 0.25 x IOmax
di/dt = 1A/us
From VI connection to VO= 0.9 × VOnom
min
2.45
2.0
2.4
Output
typ
2.5
3
3
+/-150
100
25
max
2.55
2.75
2.6
10
10
40
IO Output current
POmax Max output power
At VO = VOnom
0 30
75
Ilim Current limit threshold
VO = 0.96 VOnom @ TC <100oC
31 36 39
Isc
VO ac
Short circuit current
Output ripple & noise
IO=IOmax, f < 20 MHz
36 40
60 100
SVR Supply voltage
rejection (ac)
f < 1kHz
OVP Over voltage protection
Miscellaneous
Characteristics
VI= 50 V
Conditions
η Efficiency
Pd Power dissapation
fS Switching frequency
Absolute Maximum Ratings
Characteristics
IO = IOmax, VI = 53V, TC = +25oC
IO = IOmax, VI = 53V, TC = +25oC
IO = 0...1.0 x IOmax
min max Unit
TC
TS
VI
VISO
Maximum Operating Case Temperature
Storage temperature
Input voltage
Isolation voltage
– 40 +100
– 40 +125
– 0.5 +80
1,500
°C
°C
V dc
V dc
VRC Remote control voltage
I2t Inrush transient
12 Vdc
1 A2s
Stress in excess of Absolute Maximum Ratings may cause permanent
damage. Absolute Maximum Ratings, sometimes referred to as "no
destruction limits," are normally tested with one parameter at a time
exceeding the limits of output data or electrical characteristics. If exposed
to stress above these limits, function and performance may degrade in an
unspecified manner.
EN/LZT 108 5164 R2B © Ericsson Inc., Microelectronics, August 2001
-53
3.2 3.7 4.2
min
Thermal Data
typ
90
8.3
150
max
PKM 4719A PI Efficiency (typ)
94%
92%
90%
88% 36V
86%
84%
82%
55V
80%
78% 72V
76%
74%
0 5 10 15 20 25
Output Current (A)
Unit
V
V
V
mV
mV
mV
µs
ms
A
W
A
A
mVp-p
dB
V
Unit
%
W
kHz
30
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet PKM4000A.PDF ] | |
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