參數(shù)資料
型號: 70IMX7-12-12-8
廠商: POWER-ONE INC
元件分類: 電源模塊
英文描述: 2-OUTPUT 7.2 W DC-DC REG PWR SUPPLY MODULE
封裝: ROHS COMPLIANT PACKAGE-9
文件頁數(shù): 8/14頁
文件大?。?/td> 321K
代理商: 70IMX7-12-12-8
BCD20007 Rev AA
Page 3 of 14
www.power-one.com
IMX7 DC-DC Series Data Sheet
7-Watt DC-DC Converters
Functional Description
The IMX7 Series DC-DC converters are feedback-controlled
flyback converters using current mode PWM (Pulse Width
Modulation).
In the case of single-output models, the output is directly
sensed and fed back to the primary control circuit via a pulse
transformer, resulting in tight regulation of the output voltage.
The R input is referenced to the secondary side and allows for
programming the output voltages in the range
75 to 105%
Vo nom, using either an external resistor or an external voltage
source.
Fig. 2
Block diagram for dual-output models with standard pinout.
Fig. 1
Block diagram for single-output models with standard pinout.
PWM
2
× 2200 pF
13
1
2
3
4
11
10
12
Vi+
i
Vi–
n.c.
Vo+
Vo–
R
03041a
PWM
2
× 2200 pF
14
1
2
3
4
11
10
12
13
Vi+
Trim (R)
i
Vi –
Vo1+
Vo1–
Vo2+
Vo2–
n.c.
03042a
For double-output models, the output voltage is sensed by a
separate transformer winding close to the secondary and fed
back to the primary control circuit. The close magnetic coupling
provided by the planar construction ensures very good
regulation and allows for flexible load distribution. The Trim
input (R) is referenced to the primary side of double-output
models, and allows for programming the output voltages in the
range 100 to 105% Vo nom by means of an external resistor, or
within 75 to 100% Vo nom, using an external voltage source.
Current limitation is provided by the primary circuit, thus limiting
the total output current (Io nom for the single- and the sum of
Io1 nom and Io2 nom for the double-output models).
The inhibit input i allows remote control of the outputs; pin i
must be connected to Vi– to activate the converter.
相關PDF資料
PDF描述
70IMX7-15-15-8G 2-OUTPUT 7.2 W DC-DC REG PWR SUPPLY MODULE
70IMX7-12-12-8G 2-OUTPUT 7.2 W DC-DC REG PWR SUPPLY MODULE
70IMX7-05-05-8Z 2-OUTPUT 7 W DC-DC REG PWR SUPPLY MODULE
70IMX7-05-8 1-OUTPUT 6.1 W DC-DC REG PWR SUPPLY MODULE
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