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International Rectifier에서 제조한 전자 부품 ART28XXT은 전자 산업 및 응용 분야에서
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부품번호 ART28XXT 기능
기능 HYBRID - HIGH RELIABILITY RADIATION HARDENED DC/DC CONVERTER
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ART28XXT 데이터시트, 핀배열, 회로
www.DataSheet4U.com
PD-94529B
HYBRID - HIGH RELIABILITY
RADIATION HARDENED
DC/DC CONVERTER
ART28XXT SERIES
28V Input, Triple Output
Description
The ART Series of three output DC/DC converters are
designed specifically for use in the hostile radiation
environments characteristic of space and weapon
systems. The extremely high level of radiation tolerance
inherent in the ART design is the culmination of
extensive research, thorough analysis and testing and
of careful component specification. Many of the best
circuit design features characterizing the International
Rectifier standard product line were adapted for
incorporation into the ART topology. Capable of
uniformly high performance over long term exposures
in radiation intense environments, this series sets the
standard for distributed power systems demanding high
performance and reliability.
The ART converters are hermetically sealed in a
rugged, low profile package utilizing copper core pins
to minimize resistive DC losses. Long-term hermeticity
is assured through use of parallel seam welded lid
attachment along with International Rectifier’s rugged
ceramic pin-to-package seal. Axial orientation of the
leads facilitates preferred bulkhead mounting to the
principal heat-dissipating surface.
Manufactured in a facility fully qualified to MIL-PRF-38534,
class K, these converters are fabricated utilizing DSCC
qualified processes and are fully compliant to Class K.
The complete suite of PI tests has been completed
including Group C life test. Variations in electrical,
mechanical and screening specifications can be
accommodated. Contact IR Santa Clara for special
requirements.
ART
Features
n Total Dose > 100 krad (Si), 2:1margin
n No SEE to LET > 83 Mev.cm2 /mg
n Derated per MIL-STD-975 & MIL-STD-1547
n Output Power Range 3 to 30 Watts
n 19 to 50 Volt Input Range
n Input Undervoltage Lockout
n High Electrical Efficiency > 83%
n Full Performance from -55°C to +125°C
n Continuous Short Circuit and Overload
Protection
n 12.8 W/in3 Output Power Density
n True Hermetic Package
n External Inhibit Port
n Externally Synchronizable
n Fault Tolerant Design
n 5V, ±12V or ±15 V Outputs Available
www.irf.com
1
08/12/04




ART28XXT pdf, 반도체, 판매, 대치품
ART28XXT Series
Group A Tests VIN= 28Volts, CL =0 unless otherwise specified.
Test Symbol Conditions unless otherwise specified
Group A
Subgroups
MIN
MAX
Output voltage accuracy
Output power Note 1
Output current
Note 1
Output regulation Note 4
Input current
Output ripple Note 2
Input ripple Note 2
Switching frequency
Efficiency
VOUT
POUT
IOUT
VR
IIN
VRIP
IRIP
FS
Eff
IOUT = 1.5 Adc
(main)
IOUT = ±250mAdc
IOUT = ±250mAdc
VIN = 19 V, 28V, 50 V
VIN 19 V, 28V, 50 V
ART2812(dual)
ART2815(dual)
(main)
(dual)
IOUT = 150, 1500, 3000mAdc
VIN = 19 V, 28V, 50 V
IOUT = ±75, ±310, ±625mAdc
IOUT = ±75, ±250, ±500mAdc
(main)
2812(dual)
2815(dual)
IOUT = minimum rated, Pin 3 open
Pin 3 shorted to pin 2 (disabled)
VIN = 19 V, 28V, 50 V
IOUT = 3000mA main, ±500mA dual
VIN = 19 V, 28V, 50 V
IOUT = 3000mA main, ±500mA dual
Synchronization pin (pin 6) open
IOUT = 3000mA main, ±500mA dual
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
4, 5, 6
1
2, 3
4.95
±11.70
±14.50
3.0
150
75
4.8
±11.1
±14.0
5.05
±12.30
±15.15
30
3000
500
5.2
±12.9
±15.8
250
8.0
70
100
225 275
83
81
Power dissipation,
load fault
Output response to step
load changes Notes 3, 5
Recovery time from step
load changes Notes 5, 6
Turn on overshoot
Turn on delay Note 7
Isolation
PD Short circuit, any output
10% Load to/from 50% load
VTL
50% Load to/from 100% load
10% Load to/from 50% load
TTL
50% Load to/from 100% load
VOS IOUT = minimum and full rated
(main)
(dual)
TDLY IOUT = minimum and full rated
ISO 500VDC Input to output or any pin to case
(except pin 12)
1, 2, 3
4, 5, 6
4, 5, 6
4, 5, 6
4, 5, 6
4, 5, 6
4, 5, 6
4, 5, 6
1
-200
-200
5.0
100
16
200
200
200
200
100
500
20
Notes to Group A Test Table
1. Parameter verified during dynamic load regulation tests.
2. Guaranteed for DC to 20 MHz bandwidth. Test conducted using a 20KHz to 2MHz bandwidth.
3. Load current is stepped for output under test while other outputs are fixed at half rated load.
4. Each output is measured for all combinations of line and load. Only the minimum and maximum readings for each output are recorded.
5. Load step transition time 10µS.
6. Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±1% of its steady state value.
7. Turn on delay time is tested by application of a logical low to high transition on the enable pin (pin 3) with power present at the input.
8. Subgroups 1 and 4 are performed at +25ºC, subgroups 2 and 5 at -55ºC and subgroups 3 and 6 at +125ºC.
Units
V
W
mA
V
mA
mVP-P
mAP-P
KHz
%
W
mVPK
µS
mV
mS
M
4 www.irf.com

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ART28XXT 전자부품, 판매, 대치품
ART28XXT Series
Effectiveness of this heat transfer is dependent on the
intimacy of the baseplate-heatsink interface. It is therefore
suggested that a heat transferring medium possessing
good thermal conductivity is inserted between the
baseplate and heatsink. A material utilized at the factory
during 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 optimum surface
contact with the heat dissipater by compensating for minor
surface variations. While other available types of heat
conducting materials and thermal compounds provide
similar effectiveness, these alternatives are often less
convenient 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:
where
A
HEAT SINK
⎧ ∆T 1.43
⎨⎩80P0.85 ⎬⎭
5.94
T = Case temperature rise above ambient
P=
Device
dissipation
in
Watts
=
POUT
1
Eff
1⎫⎬
Thus, a total heat sink surface area (including fins, if any)
of approximately 32 in2 in this example, would limit case
rise to 35°C above ambient. A flat aluminum plate, 0.25"
thick and of approximate dimension 4" by 4" (16 in2 per
side) would suffice for this application in a still air
environment. Note that to meet the criteria, both sides of
the plate require unrestricted exposure to the ambient air.
Inhibiting Converter Output
As an alternative to application and removal of the DC
voltage to the input, the user can control the converter
output by providing an input referenced, TTL compatible,
logic signal to the enable pin 3. This port is internally pulled
“high” so that when not used, an open connection on the
pin permits normal converter operation. When inhibited
outputs are desired, a logical “low” on this port will shut the
converter down. An open collector device capable of
sinking at least 100 µA connected to enable pin 3 will work
well in this application.
A benefit of utilization of the enable input is that following
initial charge of the input capacitor, subsequent turn-on
commands will induce no uncontrolled current inrush.
Figure II. Enable Input Equivalent Circuit
Vin
118K
As an example, assume that it is desired to maintain the
case temperature of an ART2815T at +65°C or less while
operating in an open area whose ambient temperature
does not exceed +35°C; then
T = 65 - 35 = 35°C
From the Specification Table, the worst case full load
efficiency for this device is 80%; therefore the maximum
power dissipation at full load is given by
Enable
Input
Input
Return
64K
186K
2N2907A
5.6 V
150K
150K
150K
2N2222A
2N2222A
CR2
65K
Converter inhibit is initiated when
this transistor is turned off
P = 30 • ⎧⎨⎩.810 1⎫⎬⎭ = 30 (0.25) = 7.5W
and the required heat sink area is
A
HEAT SINK
=
⎧⎨⎩
80
35
7.50.85
⎫⎬ 1.43
5.94
=
31.8
in 2
1Sil-Pad is a registered Trade Mark of Bergquist, Minneapolis, MN
www.irf.com
7

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부품번호상세설명 및 기능제조사
ART28XXT

HYBRID - HIGH RELIABILITY RADIATION HARDENED DC-DC CONVERTER

IRF
IRF
ART28XXT

HYBRID - HIGH RELIABILITY RADIATION HARDENED DC/DC CONVERTER

International Rectifier
International Rectifier

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