Low Emission, 5 kV
Isolated DC-to-DC Converters
Data Sheet
ADuM6020/ADuM6028
FEATURES
FUNCTIONAL BLOCK DIAGRAMS
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
16
1
2
3
4
5
6
7
8
NIC
NIC
ADuM6020
15 GND
GND
ISO
ISO
ISO
ISO
1
14
13
12
11
10
9
V
SEL
PDIS
PCS
GND
1
GND
OSC
V
V
REG
RECT
DDP
ISO
GND
1
GND
NIC
NIC
GND
1
GND
UL recognition (pending)
NIC = NO INTERNAL CONNECTION. LEAVE THIS PIN FLOATING.
5000 V rms for 1 minute per UL 1577
CSA Component Acceptance Notice 5A (pending)
VDE certificate of conformity (pending)
VDE V 0884-10
Figure 1. ADuM6020 Functional Block Diagram
ADuM6028
V
IORM = 565 V peak
8
7
6
5
V
SEL
PDIS
1
2
3
4
PCS
CQC certification per GB4943.1-2011 (pending)
GND
V
GND
1
ISO
OSC
V
RECT
REG
DDP
ISO
APPLICATIONS
GND
GND
1
ISO
RS-485/RS-422/CAN transceiver power
Power supply start-up bias and gate drives
Isolated sensor interfaces
Figure 2. ADuM6028 Functional Block Diagram
Industrial PLCs
GENERAL DESCRIPTION
The ADuM6020 and ADuM60281 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 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. For 5 V
input operations, use the ADuM6020-5BRWZ and the
ADuM6028-5BRIZ. For 3.3 V input to 3.3 V output operations,
use the ADuM6020-3BRWZ and the ADuM6028-3BRIZ. See
the Pin Configuration and Function Descriptions section and
the Ordering Guide for more information.
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.
1 Protected by U.S. Patents 5,952,849; 6,873,065; 6,903,578; and 7,075,329. Other patents are pending.
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