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參數(shù)資料
| 型號(hào)： | ATR2805SF/CH |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT 25 W DC-DC REG PWR SUPPLY MODULE |
| 文件頁數(shù)： | 11/12頁 |
| 文件大小： | 116K |
| 代理商： | ATR2805SF/CH |
8
APPLICATION INFORMATION
Inhibit Function
Connecting the inhibit input (Pin 2) to input common
(Pin 10) will cause the converter to shut down. It is
recommended that the inhibit pin be driven by an
open collector device capable of sinking at least
400A of current. The open circuit voltage of the
inhibit input is 11.5 ±1VDC.
EMI Filter
An optional EMI filter (AFC461) will reduce the input
ripple current to levels below the limits imposed by
MIL-STD-461 CEO3.
Output Adjust
The output voltage of the ATR2800S can be ad-
justed upward by connecting Positive Output (Pin 5)
and Positive Sense (Pin 6) as shown in Table 1.
Device Synchronization
Whenever multiple DC/DC converters are utilized in
a single system, significant low frequency noise
may be generated due to slight difference in the
switching frequencies of the converters (beat fre-
quency 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 (communications, radar or
telemetry). Lambda Advanced Analog provides syn-
chronization of multiple ATR type converters to
match switching frequency of the converter to the
frequency of the system clock, thus eliminating this
type of noise.
BLOCK DIAGRAM
Resistance
Output Voltage
Pin 5 to 6 (
)
Increase (V)
109
0.1
240
0.2
400
0.3
600
0.4
857
0.5
1200
0.6
Table 1 Output adjustment resistor values for ATR2805S
ERROR
AMP
& REF
4
OUTPUT
FILTER
5
6
CONTROLLER
10
2
1
9
3
INPUT
FILTER
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