VMP-R050-1.0 datasheet(2/7 Pages) ANALOGTECHNOLOGIES

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Reference Design Note

MagI3C Power Modules

DNS002 MagI3C Power Supply

DNS002 V2.0

Roland Kratz - December 2018

Page 2/8

2. Specifications

Electrical Specifications

Features

Input Voltage Range

7V – 36V

Output On/Off

Mechanical Switch

Input Voltage Transients

Max. 45V

Constant Voltage Indicator

LED green

Output Voltage Range

0V – 15V

Constant Current Indicator

LED red

Output Current Limit

0A – 2.5A

Output Fail Indicator

LED red

Maximum Output Power

37.5W

Switching Frequency

1MHz

3. Functional Diagram

Controller IC

CIN

RLOAD

Power Module

COUT

Adj. Current

Set Value

Error Amplifier

Adj. Voltage

Set Value

Error Amplifier

VIN

VOUT

Figure 2. Functional Diagram

The output voltage of the MagI3C Power Module, normally fixed by the feedback resistor divider R1 and R2, is now adjustable

during operation by one of the error amplifiers. It can even be regulated below the internal reference of the MagI3C Power

Module down to 0V while continuing to be actively regulated.

The output current is measured by RS and compared with an internal reference by the second error amplifier.

Either the error amplifier for voltage regulation is active and maintains the output voltage according to the user set value or

the error amplifier for current regulation is active and maintains the output current according to the user set value.

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