Datasheet > V48A5E375BL1

V48A5E375BL1

更新时间： 2022-12-11 16:41:41

品牌	Logo	应用领域
VICOR		转换器
页数	文件大小	规格书
8页	265K
描述
FasTrak Maxi E-Grade Family DC-DC Converter

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数据手册

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V48A5E375BL1 数据手册

CONTROL FUNCTIONS - SC PIN

Output Voltage Programming

The output voltage of the converter can be adjusted or

programmed via fixed resistors, potentiometers or voltage

DACs. See Figures 7 and 8.

+Out

R_U

Trim Up

Error

Amp

Error

Amp

–S

Load

–S

Load

R_D

Trim Down

1kΩ

0.033μF

1kΩ

0.033μF

–Out

1.23V

1,000 Vout

(ohms) =

1,000 (Vout-1.23) Vnom

1.23 (Vout-Vnom)

–

1,000

(ohms) =

Vnom - Vout

Figure 7—Output voltage trim down circuit.

Figure 8—Output voltage trim up circuit.

Trim Down

Trim Up

1. This converter is not a constant power device – it has a

constant current limit. Hence, available output power is

reduced by the same percentage that output voltage is

trimmed down. Do not exceed maximum rated output current.

1. The converter is rated for a maximum delivered power. To ensure

that maximum rated power is not exceeded, reduce maximum

output current by the same percentage increase in output voltage.

2. The trim up resistor must be connected to the +Sense pin.

2. The trim down resistor must be connected to the –Sense pin.

3. Do not trim the converter above maximum trim range

(typically +10%) or the output over voltage

protection circuitry may be activated.

Trim resistor values calculated automatically:

On-line calculators for trim resistor values are available

on the vicor website at: vicorpower.com/tools.html.

Resistor values can be calculated for fixed trim up, fixed

trim down and for variable trim up or down cases for both

1st and 2nd Generation DC-DC converters.

In addition to trimming information, the web site and the

Applications Manual also include design tips, applications

circuits, EMC suggestions, thermal design guidelines and

PDF data sheets for all available Vicor products.

Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715

FasTrak Maxi E-Grade Family

Rev. 1.1

Page 5 of 8

Set your site on VICOR at www.vicorpower.com

1 2 3 456 7 8

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