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參數(shù)資料
| 型號： | AMF2805D/CH |
| 元件分類： | 電源模塊 |
| 英文描述： | DC-DC REG PWR SUPPLY MODULE |
| 文件頁數(shù)： | 5/7頁 |
| 文件大?。?/td> | 124K |
| 代理商： | AMF2805D/CH |
www.irf.com
5
AMF28XXD Series
Block Diagram
Application Information
Inhibit Function (Enable)
EMI Filter
Device Synchronization
Notes to Specifications
An optional EMI filter is available (AFH461) that will
reduce the input ripple current to levels below the
limits imposed by MIL-STD-461 CE03.
When multiple DC/DC converters are utilized in a
single system, significant low frequency noise may
be generated due to a small difference in the
switching frequency of the converters (beat
frequency noise). Because of the low frequency
nature of this noise (typically less than 10KHz), it is
difficult to filter out and may interfere with proper
operation of sensitive systems (communication,
radar or telemetry). International Rectifier provides
synchronization of multiple AMF type converters to
match switching frequency of the converter to the
frequency of the system clock, thus eliminating this
type of noise.
(Pin 7) will cause the converter to shut down. It is
recommended that the enable pin be driven by an
open collector device capable of sinking at least 400
A of current. If the user chooses not to use the inhibit
function, it may be left open and the converter will
function normally. Because it is internally pulled up,
the open circuit voltage of the inhibit input is 10 +1.0VDC.
1.
Applicable to positive and negative outputs.
2.
Maximum combined output is 12W. 10.8W (max.) is available from either output (90%).
3.
Load current split equally between +V
OUT and –VOUT.
4.
1.2W load on output under test, 1.2W to 10.8W load change on other output.
5.
Capacitive value may be any value from 0 to the maximum limit without compromising DC performance. A
capacitive load in excess of the maximum limit will not disturb loop stability but may interfere with the operation
of the load fault detection circuitry, appearing as a short circuit during turn-on.
6.
Parameter shall be tested as part of design characterization and after design or process changes. Thereafter,
parameters shall be guaranteed to the limit specified.
7.
Load step transition time between 2.0
s and 10s.
8.
Recovery time is measured from initiation of the transient to where V
out has returned to within ±1% of Vout at
50% load.
9.
Input step transient time between 1.0
s and 10s.
10. Turn-on delay time measurement is for either a step application of power at the input or the removal of a
ground signal from the inhibit pin while power is applied to the input.
3
4
+Output
Output
Return
Pulse Width
Modulator
Primary
Housekeeping
Supply
EMI
Filter
8
1
2
7
+Input
Enable
Sync
Input
Return
FB
CS
Drive
5
- Output
6
Case
Error
Amp &
Ref
Connecting the enable input (Pin 1) to input common
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AMF2805D-EM | 制造商:IRF 制造商全稱:International Rectifier 功能描述:28V Input, Dual Output, ADVANCED ANALOG RADIATION TOLERANT DC/DC CONVERTERS |
| AMF2805S | 制造商:International Rectifier 功能描述:CONV DC-DC SNGL OUT STEP DOWN 16 TO 40VIN - Bulk |
| AMF2805S/CH | 制造商:IRF 制造商全稱:International Rectifier 功能描述:HYBRID - HIGH RELIABILITYRADIATION TOLERANTDC/DC CONVERTER |
| AMF2805S/EM | 制造商:International Rectifier 功能描述:RAD TOLERANT DC/DC CONVERTER, ENGINEERING MODELS - Bulk |
| AMF2805S/P | 制造商:International Rectifier 功能描述:DC/DC PS SGL-OUT 5V 2.4A 12W 8PIN AMF - Bulk |
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