Low Emission,
Isolated DC-to-DC Converters
Data Sheet
ADuM6020/ADuM6028
Rev. 0 Document Feedback
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FEATURES
isoPower integrated, isolated dc-to-dc converter
100 mA output current for ADuM6020
60 mA output current for ADuM6028
Meets CISPR22 Class B emissions limits at full load on a
2-layer PCB
16-lead SOIC_IC package with 8.3 mm minimum creepage
8-lead SOIC_IC package with 8.3 mm minimum creepage
High temperature operation: 125°C maximum
Safety and regulatory approvals
UL recognition (pending)
5000 V rms for 1 minute per UL 1577
CSA Component Acceptance Notice 5A (pending)
VDE certificate of conformity (pending)
VDE V 0884-10
V
IORM
= 565 V peak
CQC certification per GB4943.1-2011
APPLICATIONS
RS-485/RS-422/CAN transceiver power
Power supply start-up bias and gate drives
Isolated sensor interfaces
Industrial PLCs
FUNCTIONAL BLOCK DIAGRAMS
GND
1
GND
1
PDIS
NIC
V
DDP
GND
1
NIC
GND
1
NIC
NIC
GND
ISO
GND
ISO
GND
ISO
V
SEL
V
ISO
1
2
3
4
5
6
7
8
9
10
11
12
14
13
15
OSC
RECT
REG
PCS
NIC = NO INTERNAL CONNECTION. LEAVE THIS PIN FLOATING.
ADuM6020
GND
ISO
16
16530-001
Figure 1. ADuM6020 Functional Block Diagram
GND
1
PDIS
V
DDP
GND
1
GND
ISO
GND
ISO
V
SEL
V
ISO
1
2
3
4
5
6
8
7
OSC
RECT
REG
PCS
ADuM6028
16530-102
Figure 2. ADuM6028 Functional Block Diagram
GENERAL DESCRIPTION
The ADuM6020 and ADuM6028
1
are isoPower®, integrated,
isolated dc-to-dc converters. Based on the Analog Devices, Inc.,
iCoupler® technology, these dc-to-dc converters provide
regulated, isolated power that is below CISPR22 Class B limits at
full load on a 2-layer printed circuit board (PCB) with ferrites.
Common voltage combinations and the associated current
output levels are shown in Table 1 through Table 4.
The ADuM6020 and ADuM6028 eliminate the need to design
and build isolated dc-to-dc converters in applications up to
500 mW. The iCoupler chip scale transformer technology is used
for the magnetic components of the dc-to-dc converter. The
result is a small form factor, isolated solution.
The ADuM6020 and ADuM6028 isolated dc-to-dc converters
provide two different package variants: the ADuM6020 in a
wide body, 16-lead SOIC_IC package, and the ADuM6028 in
the space saving, 8-lead, wide body SOIC_IC package. See the
Pin Configuration and Function Descriptions section and the
Ordering Guide for more information.
1
Protected by U.S. Patents 5,952,849; 6,873,065; 6,903,578; and 7,075,329. Other patents are pending.
