Analog Devices UG-402 ADuM3070 Isolated Switch Regulator Evaluation Board User Guide

This document is the user guide for EVAL-ADuM3070EBZ evaluation board

Brand: Analog Devices
Category: Power Management
Document type: User Manual
Language: English
Pages: 12
File format: PDF
File size: 743 KB
Published: 02 August, 2012
Updated: 30 September, 2023
MD5 checksum: 53EA98D8ACD3F691B98533B2CAD965F3
PDF: Analog Devices UG-402 ADuM3070 Isolated Switch Regulator Evaluation Board User Guide PDF

About this manual

The document provides instructions for using the EVAL-ADU3070EBZ evaluation board to demonstrate two independent applications for the ADuM3070 isolated switch regulator with integrated feedback. The board features two separate power supply circuits: a double supply configuration and a single supply configuration.

What's inside

Features
Supported iCoupler Models
General Description
Single Supply Configuration
Double Supply Configuration
Transformer Selection
Switching Frequency Options
Other Input and Isolated Output Supply Options
Schematic
Evaluation Board Layout

Specifications

Isolation Voltage	2.5 kV rms
Input Voltage (Single Supply)	5 V in to 5 V out
Output Voltage Options	3.3 V or 5 V
Input Voltage (Double Supply)	5 V in to 15 V out
Switching Frequency Range	200 kHz to 1000 kHz

Frequently asked questions

What transformer options are supported by the evaluation board?

The board supports Coilcraft and Halo transformer options.

How is the switching frequency configured on the single supply?

It is set by a resistor connected from the oscillator control pin (OC) to ground, selectable via R10 and R11.

How do you reconfigure the output voltage from 5 V to 3.3 V?

Short-circuiting R4 by soldering a 0 Ω resistor to R9 sets the output supply for 3.3 V.

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