Datasheet.kr   

AHP27025S 데이터시트 PDF




International Rectifier에서 제조한 전자 부품 AHP27025S은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


PDF 형식의 AHP27025S 자료 제공

부품번호 AHP27025S 기능
기능 HYBRID - HIGH RELIABILITY DC/DC CONVERTER
제조업체 International Rectifier
로고 International Rectifier 로고


AHP27025S 데이터시트 를 다운로드하여 반도체의 전기적 특성과 매개변수에 대해 알아보세요.




전체 12 페이지수

미리보기를 사용할 수 없습니다

AHP27025S 데이터시트, 핀배열, 회로
PD-97181C
HYBRID - HIGH RELIABILITY
DC/DC CONVERTER
AHP270XXS SERIES
270V 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
voltages operating from nominal +28V or +270V inputs
with output power ranging from 66W to 120W. For
applications requiring higher output power, multiple
converters can be operated in parallel. The internal current
sharing circuits assure equal current distribution among
the paralleled converters. Same as the AFL, the AHP
series incorporates International Rectifier’s proprietary
magnetic pulse feedback technology providing optimum
dynamic line and load regulation response. This feedback
system samples the output voltage at the pulse width
modulator fixed clock frequency, nominally 550KHz.
Multiple converters can be synchronized to a system clock
in the 500KHz to 700KHz range or to the synchronization
output of one converter. Undervoltage lockout, primary
and secondary referenced inhibit, soft-start and load fault
protection are provided on all models. Also included is
input over-voltage protection, a new protection feature
unique to the AHP.
These converters are hermetically packaged in two
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
the most harsh environments.
Manufactured in a facility fully qualified to MIL-PRF-
38534, these converters are fabricated utilizing DSCC
qualified processes. For available screening options,
refer to device screening table in the data sheet.
Variations in electrical, mechanical and screening can
be accommodated. Contact IR Santa Clara for special
requirements.
AHP
Features
n 160V To 400V Input Range
n 3.3V, 5V, 6V, 9V, 12V, 15V, 25V and 28V Outputs
n
Available
High Power
Density
-
up
to
84W/in3
n Up To 120W Output Power
n Parallel Operation with Stress and Current Sharing
n Low Profile (0.380") Seam Welded Package
n Ceramic Feed thru Copper Core Pins
n High Efficiency - to 87%
n Full Military Temperature Range
n Continuous Short Circuit and Overload Protection
n Remote Sensing Terminals
n Primary and Secondary Referenced
Inhibit Functions
n Line Rejection > 60dB - DC to 50KHz
n External Synchronization Port
n Fault Tolerant Design
n Dual Output Versions Available
n Standard Microcircuit Drawing Available
www.irf.com
1
01/16/07
www.DataSheet4U.net




AHP27025S pdf, 반도체, 판매, 대치품
AHP270XXS Series
Dynamic Characteristics -55°C TCASE +125°C, VIN = 270 Volts unless otherwise specified.
P aram eter
Group A
Subgroups
Test Conditions
Min Nom Max Unit
LOAD TRANSIENT RESPONSE
AHP27003R3S / AHP27005S
A m p litu d e
Recovery
A m p litu d e
Recovery
AHP27006S
A m p litu d e
Recovery
A m p litu d e
Recovery
AHP27009S
A m p litu d e
Recovery
A m p litu d e
Recovery
AHP27012S
A m p litu d e
Recovery
A m p litu d e
Recovery
AHP27015S
A m p litu d e
Recovery
A m p litu d e
Recovery
AHP27025S
A m p litu d e
Recovery
A m p litu d e
Recovery
AHP27028S
A m p litu d e
Recovery
A m p litu d e
Recovery
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
4, 5, 6
4, 5, 6
Notes 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%
Load Step 10% 50%
Load Step 50% 100%
Load Step 10% 50%
-450
-450
-450
-450
-600
-600
-750
-750
-900
-900
-1200
-1200
-1200
-1200
450
200
450
400
450
200
450
400
600
200
600
400
750
200
750
400
900
200
900
400
1200
200
1200
400
1200
200
1200
400
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
mV
µs
LINE TRANSIENT RESPONSE
A m p litu d e
Recovery
Notes 1, 2, 3
VIN Step = 160 400 Volts
-500
500 mV
500 µs
TURN-ON CHARACTERISTICS
Overshoot
Delay
4, 5, 6
4, 5, 6
Note 4
Enable 1, 2 on. (Pins 4, 12 high or
open)
5.0 10
%
50 75 120 ms
LOAD FAULT RECOVERY
Same as Turn On Characteristics.
LINE REJECTION
MIL-STD-461, CS101, 30Hz to 50KHz
Note 1
60
70
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 ±1.0 % of VOUT at 50% load.
3. Line transient transition time 100µs.
4. Turn-on delay is measured with an input voltage rise time of between 100V and 500V per ms.
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 10µs.
9. Enable inputs internally pulled high. Nominal open circuit voltage 4.0VDC.
10. All tests at no-load are performed after start-up of the converter.
The converter may fail to start when the output load is less than 1.0W. Under these circumstances,
the converter’s start-up circuitry will continue to cycle until an adequate load is present.
4 www.irf.com

4페이지










AHP27025S 전자부품, 판매, 대치품
AHP270XXS 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 sense leads from each converter 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 outputs and sense 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 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
output current to +2.20V at full load. The share pin voltage
is referenced to the output return pin.
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 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
transferance 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 pro duct is
an insulator but electrically conductive versions are also
available. Use of these materials assures maximum surface
contact with the heat dissipator thereby compensating for
minor variations of either surface. While other available types
of heat conductive materials and compounds may provide
similar performance, these alternatives are often less
convinient and are frequently messy to use.
A conservative aid to estimating the total heat sink surface
area (AHEAT SINK) required to set the maximum case
temperature 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 AHP27015S at +85°C in an area where the 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 by
P = 120 • ⎧⎨⎩.813 1⎫⎬⎭ = 120 (0.205) = 24.6W
and the required heat sink area is
A
HEAT
SINK
=
80
60
24.6 0.85
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

7페이지


구       성 총 12 페이지수
다운로드[ AHP27025S.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
AHP27025S

HYBRID - HIGH RELIABILITY DC/DC CONVERTER

International Rectifier
International Rectifier
AHP27025S

HYBRID - HIGH RELIABILITY DC/DC CONVERTER

International Rectifier
International Rectifier

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