Datasheet.kr   

AHP2808S 데이터시트 PDF




International Rectifier에서 제조한 전자 부품 AHP2808S은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


PDF 형식의 AHP2808S 자료 제공

부품번호 AHP2808S 기능
기능 HIGH RELIABILITY HYBRID DC/DC CONVERTERS
제조업체 International Rectifier
로고 International Rectifier 로고


AHP2808S 데이터시트 를 다운로드하여 반도체의 전기적 특성과 매개변수에 대해 알아보세요.




전체 12 페이지수

미리보기를 사용할 수 없습니다

AHP2808S 데이터시트, 핀배열, 회로
PD-97388
HIGH RELIABILITY
HYBRID DC/DC CONVERTERS
AHP28XXS SERIES
28V Input, Single Output
Description
The AHP Series of DC/DC converters feature high power
density without derating over the full military temperature
range. This series is offered as lower cost alternatives to
the legendary AFL series with improved performance
for new design applications. The AHPs are form, fit and
functional replacement to the AFL series. The new AHP
series offers a full compliment of single and dual output
AHP
voltages operating from nominal +28 or +270 volt inputs
with output power ranging from 66 to 120 watts. For Features
applications requiring higher output power, multiple
converters can be operated in parallel. The internal n 16 To 40 Volt Input Range
current sharing circuits assure equal current distribution
among the paralleled converters. Same as the AFL, the
n
n
3.3, 5, 8, 9,12,15 and
High Power Density -
2u8pVtoolt8s4OWutp/ uints3
Available
AHP series incorporates International Rectifier's n Up To 120 Watt Output Power
proprietary magnetic pulse feedback technology n Parallel Operation with Stress and Current Sharing
providing optimum dynamic line and load regulation n Input Over-Voltage Protection
response. This feedback system samples the output nwww.DataSheet.co.kr High Efficiency - to 85%
voltage at the pulse width modulator fixed clock n Continuous Short Circuit and Overload Protection
frequency; nominally 550 KHz. Multiple converters can n External Synchronization Port
be synchronized to a system clock in the 500 KHz to 700 n Remote Sensing Terminals
KHz range or to the synchronization output of one n Primary and Secondary Referenced
converter. Under-voltage lockout, primary and secondary
Inhibit Functions
referenced inhibit, soft-start and load fault protection are n Line Rejection > 40 dB - DC to 50KHz
provided on all models. Also included is input over- n Fault Tolerant Design
voltage protection, a new protection feature unique to n Full Military Temperature Range
the AHP.
n Ceramic Feedthru Copper Core Pins
n Low Profile (0.380") Seam Welded Package
These converters are hermetically packaged in two n Dual Output Versions Available
enclosure variations, utilizing copper core pins to
minimize resistive DC losses. Three lead styles are
available, each fabricated with International Rectifier’s
rugged ceramic lead-to-package seal assuring long
term hermeticity in harsh environments.
Manufactured in a facility fully qualified to MIL-PRF-
38534, these converters are available in four screening
grades to satisfy a wide range of requirements. The
CH grade is fully compliant to the requirements of MIL-
PRF-38534 for class H. The HB grade is fully processed
and screened to the class H requirement, but does not
have material element evaluated to the class H
requirement. Both grades are tested to meet the
www.irf.com
complete group “A” test specification over the full
military temperature range without output power
de-rating. Two grades with more limited screening
are also available for use in less demanding
applications. Variations in electrical, mechanical
and screening can be accommodated. Please
contact IR Santa Clara for special requirements.
1
04/16/09
Datasheet pdf - http://www.DataSheet4U.net/




AHP2808S pdf, 반도체, 판매, 대치품
AHP28XXS Series
Dynamic Characteristics -55°C < TCASE < +125°C, VIN=28V unless otherwise specified.
Group A
Subgroups
Test Conditions
Min Nom Max
LOAD TRANSIENT RESPONSE
AHP2803R3S / AHP2805S
Amplitude
Recovery
Amplitude
Recovery
AHP2808S
Amplitude
Recovery
Amplitude
Recovery
AHP2809S
Amplitude
Recovery
Amplitude
Recovery
AHP2812S
Amplitude
Recovery
Amplitude
Recovery
AHP2815S
Amplitude
Recovery
Amplitude
Recovery
AHP2828S
Amplitude
Recovery
Amplitude
Recovery
LINE TRANSIENT RESPONSE
Amplitude
Recovery
TURN-ON CHARACTERISTICS
Overshoot
Delay
4, 5, 6
4, 5, 6
4, 5, 6
4, 5, 6
4, 5, 6
4, 5, 6
4, 5, 6
4, 5, 6
4, 5, 6
4, 5, 6
4, 5, 6
4, 5, 6
4, 5, 6
4, 5, 6
4, 5, 6
4, 5, 6
4, 5, 6
4, 5, 6
4, 5, 6
4, 5, 6
4, 5, 6
4, 5, 6
4, 5, 6
4, 5, 6
4, 5, 6
4, 5, 6
Note 2, 8
Load Step 50% 100%
Load Step 10% 50%
Load Step 50% 100%
Load Step 10% 50%
Load Step 50% 100%
Load Step 10% 50%
Load Step 50% 100%
Load Step 10% 50%
Load Step 50% 100%
Load Step 10% 50%
Load Step 50% 100%
www.DataSheet.co.kr
Load Step 10% 50%
Note 1, 2, 3
VIN Step = 16 40V
VIN = 16, 28, 40V. Note 4
Enable 1, 2 on. (Pins 4, 12 high or
open)
-450
-450
-500
-500
-600
-600
-750
-750
-750
-750
-1200
-1200
450
200
450
400
500
200
500
400
600
200
600
400
750
200
750
400
750
200
750
400
1200
200
1200
400
-500
500
500
12
0 4.0 10
Unit
mV
µs
mV
µs
mV
µs
mV
µs
mV
µs
mV
µs
mV
µs
mV
µs
mV
µs
mV
µs
mV
µs
mV
µs
mV
µs
%
ms
LOAD FAULT RECOVERY
LINE REJECTION
Same as Turn On Characteristics.
MIL-STD-461D, CS101, 30Hz to 50KHz
Note 1
40
50
dB
Notes to Specifications:
1. Parameters not 100% tested but are guaranteed to the limits specified in the table.
2. Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±1% of
VOUT at 50% load.
3. Line transient transition time 100 µs.
4. Turn-on delay is measured with an input voltage rise time of between 100 and 500 volts per millisecond.
5. Current limit point is that condition of excess load causing output voltage to drop to 90% of nominal.
6. Parameter verified as part of another test.
7. All electrical tests are performed with the remote sense leads connected to the output leads at the load.
8. Load transient transition time 10 µs.
9. Enable inputs internally pulled high. Nominal open circuit voltage 4.0VDC.
4 www.irf.com
Datasheet pdf - http://www.DataSheet4U.net/

4페이지










AHP2808S 전자부품, 판매, 대치품
AHP28XXS Series
When operating in the shared mode, it is important that
symmetry of connection be maintained as an assurance of
optimum load sharing performance. Thus, converter outputs
should be connected to the load with equal lengths of wire of
the same gauge and should be connected to a common
physical point, preferably at the load along with the converter
output and return leads. All converters in a paralleled set
must have their share pins connected together. This
arrangement is diagrammatically illustrated in Figure III.
showing the output and return pins connected at a star
point which is located as close as possible to the load.
As a consequence of the topology utilized in the current
sharing circuit, the share pin may be used for other functions.
In applications requiring only a single converter, the voltage
appearing on the share pin may be used as a “current
monitor”. The share pin open circuit voltage is nominally
+1.00v at no load and increases linearly with increasing
total output current to +2.20v at full load.
Thermal Considerations
Because of the incorporation of many innovative
technological concepts, the AHP series of converters is
capable of providing very high output power from a package
of very small volume. These magnitudes of power density
can only be obtained by combining high circuit efficiency
with effective methods of heat removal from the die junctions.
This requirement has been effectively addressed inside the
device; but when operating at maximum loads, a significant
amount of heat will be generated and this heat must be
conducted away from the case. To maintain the case
temperature at or below the specified maximum of 125°C,
this heat must be transferred by conduction to an
appropriate heat dissipater held in intimate contact with the
converter base-plate.
Because the effectiveness of this heat transfer is dependent
on the intimacy of the baseplate/heatsink interface, it is
strongly recommended that a high thermal conductivity heat
transferring medium is inserted between the baseplate and
heatsink. The material most frequently utilized at the factory
during all testing and burn-in processes is sold under the
trade name of Sil-Pad® 4001 . This particular product is an
insulator but electrically conductive versions are also
available. Use of these materials assures maximum surface
contact with the heat dissipater thereby compensating for
any minor surface variations. While other available types of
heat conductive materials and thermal compounds provide
similar effectiveness, these alternatives are often less
convenient and can be somewhat messy to use.
A conservative aid to estimating the total heat sink surface
area (AHEAT SINK) required to set the maximum case temp-
erature rise (T) above ambient temperature is given by
the following expression:
A
HEAT SINK
T
80P 0.85
1.43
3.0
where
T = Case temperature rise above ambient
P=
Device
dissipation
in
Watts
=
POUT ⎧⎨
1
Eff
1⎫⎬
As an example, it is desired to maintain the case temperature
of an AHP2815S at +85°C while operating in an open
area whose ambient temperature is held at a constant
+25°C; then
T = 85 - 25 = 60°C
From the Specification Table, the worst case full load
efficiency for this device is 83%; therefore the power
dissipation at full load is given bywww.DataSheet.co.kr
P = 120 • ⎧⎨⎩.813 1⎫⎬⎭ = 120 (0.205) = 24.6W
and the required heat sink area is
A
HEAT SINK
=
⎧⎨
80
60
24.60.85
1.43
3.0
=
71
in2
Thus, a total heat sink surface area (including fins, if any) of
71 in2 in this example, would limit case rise to 60°C above
ambient. A flat aluminum plate, 0.25" thick and of
approximate dimension 4" by 9" (36 in2 per side) would
suffice for this application in a still air environment. Note
that to meet the criteria in this example, both sides of the
plate require unrestricted exposure to the ambient air.
1Sil-Pad is a registered Trade Mark of Bergquist, Minneapolis, MN
www.irf.com
7
Datasheet pdf - http://www.DataSheet4U.net/

7페이지


구       성 총 12 페이지수
다운로드[ AHP2808S.PDF 데이터시트 ]

당사 플랫폼은 키워드, 제품 이름 또는 부품 번호를 사용하여 검색할 수 있는

포괄적인 데이터시트를 제공합니다.


구매 문의
일반 IC 문의 : 샘플 및 소량 구매
-----------------------------------------------------------------------

IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한
광범위한 전력 반도체를 판매합니다.

전력 반도체 전문업체

상호 : 아이지 인터내셔날

사이트 방문 :     [ 홈페이지 ]     [ 블로그 1 ]     [ 블로그 2 ]



관련 데이터시트

부품번호상세설명 및 기능제조사
AHP2808S

HIGH RELIABILITY HYBRID DC/DC CONVERTERS

International Rectifier
International Rectifier
AHP2808S

HIGH RELIABILITY HYBRID DC/DC CONVERTERS

International Rectifier
International Rectifier

DataSheet.kr       |      2020   |     연락처      |     링크모음      |      검색     |      사이트맵