Datasheet > 25DMOW_4805S1.5

25DMOW_4805S1.5

更新时间： 2022-06-24 15:42:31

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GAPTEC		/
页数	文件大小	规格书
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描述
25W - Single Output - Wide Input - Isolated & Regulated

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25DMOW_4805S1.5 数据手册

25DMOW_1.5 series

25W - Single Output - Wide Input - Isolated & Regulated

DC-DC Converter

Remote on/oﬀ

Remote On/Oﬀ Implementation

The REM pin is used to turn the power converter remote on

or oﬀ via a system signal. This power module is negative

logic version. When the REM pin is at logic low the power

turns on and turns oﬀ at logic high. We also provide positive

logic remote On/Oﬀ, turns the module on during logic high

voltage and oﬀ during a logic low.

To turn the power module on and oﬀ, the user must supply a

switch to control the voltage between the REM pin and -Vin

terminal (see Figure on the left). A logic low is VREM =-0.7V to

1.2V. During logic high, the maximum VREM voltage genera-

ted by the power module is 15V.

If not using the remote on/oﬀ feature, perform one of the

following to turn the converter on:

For negative logic, short REM pin to -Vin.

For positive logic, leave REM pin open.

Remote sense

Circuit conﬁguration for remote sense

Remote sense minimizes the eﬀects of distribution losses by

regulating the voltage at the remote sense connections (see

ﬁgure on the left). The voltage between the remote sense pins

and

the output terminals must not exceed the output voltage

sense range (<10% Vo(nom)).

The voltage between the +VO1 and GND terminals must not

exceed the minimum output overvoltage protection value

shown in the Electrical Speciﬁcations table. This limit includes

any increase in voltage due to remote sense compensation

and output voltage programming (trim). If not using the

remote sense feature to regulate the output at the point of

load, then connect +S to +VO1 and -S to GND.

Output voltage programming

Circuit conﬁguration to increase output voltage

Output voltage trim allows the user to increase or decrease

the output voltage set point of a module. This is accomplished

by connecting an external resistor between the TRIM pin and

either the +S or -S pins. If not using the trim feature, leave the

TRIM pin open.

To increase the output voltage, refer to the ﬁgure on the left.

A trim resistor, Rtrimup, is connected between the TRIM and +S.

Page 4 of 6

25DMOW_1.5 – Rev. 2020-1.0

Speciﬁcations subject to change without notice.

GAPTEC-Electronic GmbH & Co. KG

sales@gaptec-electronic.com – www.gaptec-electronic.com

1 2 345 6

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