参数资料
型号: 70IMX4-15-8G
厂商: POWER-ONE INC
元件分类: 电源模块
英文描述: DC-DC REG PWR SUPPLY MODULE
封装: ROHS COMPLIANT PACKAGE-24
文件页数: 6/12页
文件大小: 291K
代理商: 70IMX4-15-8G
BCD20006-G Rev AA, 8-Apr-09
Page 3 of 12
www.power-one.com
IMX4 DC-DC Series Data Sheet
4-Watt DC-DC Converters
Functional Description
The IMX4 Series converters are feedback-controlled flyback
converters
using
current
mode
PWM
(Pulse
Width
Modulation). The input is protected against transients by
means of a suppressor diode.
The output voltage is monitored by a separate transformer
winding close to the secondary windings and fed back to the
control circuit.
Current limitation is provided by the primary circuit, thus
limiting the total output current (Io nom for single- and the sum
Io1 nom + Io2 nom for dual-output models).
The
close
magnetic
coupling
provided
by
the
planar
construction ensures very good regulation and allows for
flexible load distribution on dual-output models.
Fig. 2
Block diagram for dual-output models with standard
pinout.
PWM
Vi+
Vi–
Vo+
Vo–
Go
23
22
2
3
14
16
11
03045
PWM
Vi+
Vi–
Vo+
Vo–
Go
1
24
15
10
13
03047
11
Fig. 4
Block diagram for dual-output models with alternative
pinout (option K).
Fig. 3
Block diagram for single-output models with alternative
pinout (option K).
Fig. 1
Block diagram for single-output models with standard
pinout.
PWM
Vi+
Vi–
Vo+
Vo–
22
3
14
16
10
23
2
03044
PWM
Vi+
Vi–
Vo+
Vo–
1
24
13
12
2
03046
n.c.
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