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參數(shù)資料
| 型號： | PSA481-7IR |
| 廠商： | POWER-ONE INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT 48 W DC-DC REG PWR SUPPLY MODULE |
| 文件頁數(shù)： | 6/13頁 |
| 文件大?。?/td> | 216K |
| 代理商： | PSA481-7IR |
PSA Series Extended Data Sheet
Positive Switching Regulator (Rugged)
REV. SEP 23, 2003
Page 2 of 13
Type Key and Product Marking
PSA 12 1.5 -7 i R P Y
Positive switching regulator in case A01 .................... PSA
Nominal output voltage in volt ................................ 12...48
Nominal output current in ampere ........................... 1...1.5
Operational ambient temperature range T
A
–25...71°C ........................................................... -7
–40...71°C (option) .............................................. -9
Inhibit input ........................................................................ i
Control input for output voltage adjustment 1 .................. R
Potentiometer 1 (option) ................................................... P
PCB soldering pins 0.5
∞ 1.0 mm (option) ...................... Y
1 R-Control excludes option P and vice versa.
Example:
PSA 121.5-7iPY = A positive switching regulator with a 12 V, 1.5 A output, ambient temperature range of
–25…71°C, inhibit input, potentiometer and small soldering pins.
Control circuit
Go–
Vo+
Gi–
Vi+
Input
Filter
R
i
Io
U o
Ii
U i
03016
Ce
Option P
Fig. 1
Block diagram
Functional Description
The switching regulators are using the buck converter to-
pology. See also: Technical Information: Topologies. The
input is not electrically isolated from the output. During the
on period of the switching transistor, current is transferred
to the output and energy is stored in the output choke in
the form of flux. During the off period, this energy forces
the current to continue flowing through the output, to the
load and back through the freewheeling diode. Regulation
is accomplished by varying the on to off duty ratio of the
power switch.
These regulators are ideal for a wide range of applica-
tions, where input to output isolation is not necessary, or
where already provided by an external front end (e.g. a
transformer with rectifier). To optimise customer’s needs,
additional options and accessories are available.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PSA481-9IR | 制造商:Power-One 功能描述:DCDC - Bulk |
| PSA-48U-240 | 功能描述:插入式交流適配器 48.2W 24V RoHS:否 制造商:Phihong 地區(qū):Universal 安裝風格:Wall, Interchangeable Plug 輸入電壓范圍:90 VAC to 264 VAC 輸出端數(shù)量:1 輸出功率額定值:5 W 輸出電壓（通道 1）:5 V 輸出電流（通道 1）:1 A 直流輸出連接器:USB Type A 隨附/必需的交流插頭:Required 商用/醫(yī)用:Commercial 效率:Level V |
| PSA4900A | 制造商:ZCOMM 制造商全稱:ZCOMM 功能描述:LOW COST - HIGH PERFORMANCE PHASE LOCKED LOOP |
| PSA4905A | 制造商:ZCOMM 制造商全稱:ZCOMM 功能描述:LOW COST - HIGH PERFORMANCE PHASE LOCKED LOOP |
| PSA4R7HA2A705 | 制造商:THINKING 制造商全稱:Thinking Electronic Industrial Co.,Ltd 功能描述:Motor Starter |
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