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參數資料
| 型號： | 5962-9213901HXC |
| 廠商： | CRANE ELECTRONICS INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT 12 W DC-DC REG PWR SUPPLY MODULE |
| 封裝： | DIP-8 |
| 文件頁數： | 1/23頁 |
| 文件大小： | 1291K |
| 代理商： | 5962-9213901HXC |
DESCRIPTION
MHF+ Single and dual dC/dC ConverterS
the MHF+ Single and dual Series of high frequency dC/
dC converters offers a wide input voltage range of 16 to 40
volts (MHF+281r9S, 20 to 32 volts) and up to 15 watts of
output power. the units are capable of withstanding short
term transients up to 50 volts. the converters are offered with
standard screening, “eS” screening, or fully compliant to “883”
Mil-PrF-38534 Class H screening. Standard microcircuit
drawings (SMd) are available.
Converter Design
the MHF+ converters are switching regulators that use a
quasi-square wave, single-ended forward converter design with
a constant switching frequency of 550 kHz typical. isolation
between input and output circuits is provided with a transformer
in the forward path and a temperature compensated optical link
in the feedback control loop. See Figure 1.
For the MHF+ dual output models, good cross regulation is
maintained by tightly coupled output magnetics. up to 90%
of the total output power (80% on 2805d) is available from
either output, providing the opposite output is simultaneously
carrying 10% of the total output power (20% on 2805d models).
Predictable current limit is accomplished by directly monitoring
the output load current and providing a constant current output
above the overload point.
inhibit FunCtion
MHF+ converters provide an inhibit terminal that can be used to
disable internal switching, resulting in no output current and very
low quiescent input current. the converter is inhibited when an
active low of ≤0.8 V is applied to the inhibit pin. The unit is
enabled when the pin, which is internally connected to a pull-up
resistor, is left unconnected or is connected to an open-collector
gate. the open circuit output voltage associated with the inhibit
pin is 8.5 to 12 v. in the inhibit mode, a maximum of 4 ma must
be sunk from the inhibit pin. See Figure 3.
synChronization
an external synchronization feature is included that allows the
user to adjust the nominally 550 kHz operating frequency to
any frequency within the range of 500 kHz to 600 kHz. this is
initiated by applying a signal input of the desired frequency to
pin 5. the capacitively coupled sync input will synchronize on
a differential signal of as low as 4 volts to as high as 5 v. For
single and dual output models, if the sync function is not used,
connect the terminal to input common.
short CirCuit ProteCtion
MHF+ Series single and dual output converters provide short
circuit protection by restricting the output current to approximately
115% of the
full load output current. the output current is sensed in the
secondary stage to provide highly predictable and accurate
current limiting, and to eliminate foldback characteristics.
unDervoltage loCkout
undervoltage lockout prevents the single and dual output
converters from operating below approximately 14 vdC input
voltage to keep system current levels smooth, especially during
initialization or re-start operations.
Features
Only 0.33 inches (8.38 mm) high in a
hermetically sealed case
operating temperature –55° to +125°C
input voltage 16 to 40 vdC
- MHF+281r9S 20 to 32 vdC
- triple output models16 to 48 vdC
transient protection
- Single and dual: 50 v for 50 ms
- triple: 80 v for 120 ms
Fully isolated
Fixed high frequency switching
inhibit and synchronization functions
indefinite short circuit protection
up to 84% efficiency
ModelS
VDC Output
Single
1.9
3.3
5
5.2
5.3
12
15
28
dual
±5
±12
±15
triPle
+5 & ±12
+5 & ±15
Crane aerospace & electronics Power solutions
MHF+ Single, dual and triple dC/dC Converters
Crane aerospace & electronics
electronics group (interpoint Brand)
PO Box 97005 Redmond WA 98073-9705
425.882.3100 power@crane-eg.com
www.interpoint.com
Page 1 of 23
28 VOlT inPuT – 15 WATT
MHF+ rev l - 20091113
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相關代理商/技術參數 |
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| 5962-9214101MPA | 功能描述:直流/直流開關調節器 Fixed/Adjustable Low Power CMOS Step-Up RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| 5962-9214102MPA | 功能描述:電流和電力監控器、調節器 Fixed/Adjustable Low Power CMOS Step-Up RoHS:否 制造商:STMicroelectronics 產品:Current Regulators 電源電壓-最大:48 V 電源電壓-最小:5.5 V 工作溫度范圍:- 40 C to + 150 C 安裝風格:SMD/SMT 封裝 / 箱體:HPSO-8 封裝:Reel |
| 5962-9214103MPA | 功能描述:直流/直流開關調節器 RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| 5962-9214104MPA | 功能描述:直流/直流開關調節器 NULL RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| 59629214701M2A | 制造商:TI 功能描述:SNJ54ABT244FK |
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