Isolated DC-to-DC Converter

ADuM5000

Rev. 0

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FEATURES

isoPower, integrated isolated dc-to-dc converter

Regulated 3.3 V or 5 V output

Up to 500 mW output power

16-lead SOIC package with >8 mm creepage

High temperature operation: 105°C maximum

High common-mode transient immunity: >25 kV/μs

Thermal overload protection

Safety and regulatory approvals

UL recognition

2500 V rms for 1 minute per UL 1577

CSA Component Acceptance Notice #5A (pending)

VDE certificate of conformity (pending)

DIN V VDE V 0884-10 (VDE V 0884-10):2006-12

APPLICATIONS

RS-232/RS-422/RS-485 transceivers

Industrial field bus isolation

Power supply startups and gate drives

Isolated sensor interfaces

Industrial PLCs

FUNCTIONAL BLOCK DIAGRAM

NC

OSC

NC

NC

NC

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

ADuM5000

RECT

REG

Figure 1.

GENERAL DESCRIPTION

The ADuM50001 is an isolated dc-to-dc converter based on the

Analog Devices, Inc., iCoupler® technology. The dc-to-dc converter

in this device provides regulated, isolated power in several combi-

nations of input and output voltage as listed in Table 1.

The Analog Devices chip-scale transformer iCoupler technology

transfers isolated power in this dc-to-dc converter with up to

33% efficiency. The result is a small form factor, total isolation

solution.

Higher output power levels are obtained by using the ADuM5000

to augment the power output of ADuM5401, ADuM5402,

ADuM5403, ADuM5404, and ADuM520x iCouplers with

isoPower®.

isoPower uses high frequency switching elements to transfer

power through its transformer. Special care must be taken

during printed circuit board (PCB) layout to meet emissions

standards. Refer to the AN-0971 application note for board

layout recommendations.

Table 1.

Input Voltage

Output Voltage

Output Power

5 V

5 V

500 mW

5 V

3.3 V

330 mW

3.3 V

3.3 V

200 mW