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AFL12015D 데이터시트 PDF




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부품번호 AFL12015D 기능
기능 HYBRID-HIGH RELIABILITY DC/DC CONVERTER
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AFL12015D 데이터시트, 핀배열, 회로
PD - 94463C
HYBRID-HIGH RELIABILITY
DC/DC CONVERTER
AFL120XXD SERIES
120V Input, Dual Output
Description
The AFL Series of DC/DC converters feature high power
density with no derating over the full military temperature
range. This series is offered as part of a complete family
of converters providing single and dual output voltages
and operating from nominal +28V or +270V inputs with
output power ranging from 80W to 120W. For applications
requiring higher output power, individual converters
can be operated in parallel. The internal current sharing
circuits assure equal current distribution among the
paralleled converters. This 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.
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.
AFL
Features
n 80V To 160V Input Range
n
n
±5V,
High
±12V, and ±15V
Power Density -
Outputs Available
up to 70W/in3
n Up To 100W Output Power
n Parallel Operation with Power Sharing
n Low Profile (0.380") Seam Welded Package
n Ceramic Feedthru Copper Core Pins
n High Efficiency - to 87%
n Full Military Temperature Range
n Continuous Short Circuit and Overload
Protection
n Output Voltage Trim
n Primary and Secondary Referenced
Inhibit Functions
n Line Rejection > 50dB - DC to 50KHz
n External Synchronization Port
n Fault Tolerant Design
n Single Output Versions Available
n Standard Microcircuit Drawings Available
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.
www.irf.com
1
12/15/06
Free Datasheet http://www.Datasheet4U.com




AFL12015D pdf, 반도체, 판매, 대치품
AFL120XXD Series
Dynamic Characteristics -55°C < TCASE < +125°C, VIN=120V unless otherwise specified.
Parameter
Group A
Subgroups
Test Conditions
Min Nom Max
LOAD TRANSIENT RESPONSE
AFL12005D
Either Output
Amplitude
Recovery
Amplitude
Recovery
AFL12012D
Either Output
Amplitude
Recovery
Amplitude
Recovery
AFL12015D
Either Output
Amplitude
Recovery
Amplitude
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
Note 2, 8
Load Step 50% 100%
Load Step 10% 50%
10% 50%
50% 10%
Load Step 50% 100%
Load Step 10% 50%
10% 50%
50% 10%
Load Step 50% 100%
Load Step 10% 50%
10% 50%
50% 10%
-450
-450
-750
-750
-750
-750
450
200
450
200
400
750
200
750
200
400
750
200
750
200
400
Unit
mV
µs
mV
µs
µs
mV
µs
mV
µs
µs
mV
µs
mV
µs
µs
LINE TRANSIENT RESPONSE
Amplitude
Recovery
TURN-ON CHARACTERISTICS
Overshoot
Delay
LOAD FAULT RECOVERY
LINE REJECTION
4, 5, 6
4, 5, 6
Note 1, 2, 3
VIN Step = 80 160 Volts
-500
500 mV
500 µs
Note 4
Enable 1, 2 on. (Pins 4, 12 high or
open)
250 mV
50 75 120 ms
Same as Turn On Characteristics.
MIL-STD-461D, CS101, 30Hz to 50KHz
Note 1
50
60
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 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 10µs.
9. Enable inputs internally pulled high. Nominal open circuit voltage 4.0VDC.
10. Load current split equally between +Vout and -Vout.
11. Output load must be distributed so that a minimum of 20% of the total output power is being provided by one of
the outputs.
12. Cross regulation measured with load on tested output at 20% of maximum load while changing the load on
other output from 20% to 80%.
4 www.irf.com
Free Datasheet http://www.Datasheet4U.com

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AFL12015D 전자부품, 판매, 대치품
AFL120XXD 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 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 “totall 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. Note that the current
we refer to here is the total output current, that is, the sum
of the positive and negative outout currents.
Thermal Considerations
Because of the incorporation of many innovative
technological concepts, the AFL 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.
Since 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
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, assume that it is desired to operate an
AFL12015D
+85°C in an
while holding the case
area where the ambient
tetemmppeeraratuturereisaht eTldC
to
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% @ 100 watts: thus, power
dissipation at full load is given by
P = 100 • ⎧⎨⎩.813 1⎫⎬⎭ = 100 (0.205) = 20.5W
and the required heat sink area is
A
HEAT SINK
=
60
80
20.50.85
1.43
3.0
=
56.3
in 2
Thus, a total heat sink surface area (including fins, if any) of
56 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 7" (28 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 +25°C ambient air.
1Sil-Pad is a registered Trade Mark of Bergquist, Minneapolis, MN
www.irf.com
7
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부품번호상세설명 및 기능제조사
AFL12015D

HYBRID-HIGH RELIABILITY DC/DC CONVERTER

International Rectifier
International Rectifier
AFL12015D

HYBRID-HIGH RELIABILITY DC/DC CONVERTER

International Rectifier
International Rectifier

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