Dual Channel Isolators with
Integrated DC-to-DC Converter
ADuM5200/ADuM5201/ADuM5202
FEATURES
FUNCTIONAL BLOCK DIAGRAM
isoPower integrated isolated dc-to-dc converter
Regulated 3 V or 5 V output
Up to 500 mW output power
Dual dc-to-25 Mbps (NRZ) signal isolation channels
Schmitt trigger inputs
16-lead SOIC package with >8 mm creepage
High temperature operation: 105°C maximum
High common-mode transient immunity: >25 kV/μs
Safety and regulatory approvals
OSC
RECT
REG
1
2
3
4
5
6
7
8
16
15
14
13
V
V
ISO
DD1
GND
GND
ISO
1
V
/V
IA OA
V /V
IA OA
2-CHANNEL iCOUPLER CORE
V
/V
IB OB
V /V
IB OB
RC
12 NC
IN
RC
11
10
9
V
V
SEL
SEL
ADuM5200/
ADuM5201/
ADuM5202
V
/NC
/NC
E1
GND
E2
UL recognition
GND
ISO
1
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
Figure 1.
V
V
V
V
IA
IB
OA
OB
3
4
14
13
ADuM5200
V
IORM = 560 V peak
APPLICATIONS
Figure 2. ADuM5200
RS-232/RS-422/RS-485 transceivers
Industrial field bus isolation
Power supply startups and gate drives
Isolated sensor interfaces
V
V
IA
OA
3
4
14
13
ADuM5201
V
V
OB
IB
Industrial PLCs
Figure 3. ADuM5201
V
V
V
OA
IA
3
4
14
13
ADuM5202
V
OB
IB
Figure 4. ADuM5202
GENERAL DESCRIPTION
The ADuM520x1 are dual channel digital isolators with
isoPower, an integrated, isolated dc-to-dc converter. Based on
the Analog Devices, Inc., iCoupler® technology, the dc-to-dc
converter provides up to 500 mW of regulated, isolated power
with 5.0 V input and 5.0 V output voltage, or 200 mW of power
with 3.3 V input and 3.3 V output voltage. This eliminates the
need for a separate isolated dc-to-dc converter in low power
isolated designs. The Analog Devices chip scale transformer
iCoupler technology is used for the isolation of the logic signals
as well as for the dc-to-dc converter. The result is a small form
factor, total isolation solution.
levels and greater channel counts (see the Increasing Available
Power section).
The ADuM520x isolators provide two independent isolation
channels in a variety of channel configurations and data rates
(see the Ordering Guide for options).
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 details on
board layout recommendations.
ADuM520x units can be used in combination with the
ADuM5401, ADuM5402, ADuM5403, ADuM5404, and
ADuM5000 with isoPower® to achieve higher output power
1 Protected by U.S. Patents: 5,952,849; 6,873,065; 6,903,578; and 7,075,329. Other patents are pending.
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registeredtrademarks arethe property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
www.analog.com
©2008 Analog Devices, Inc. All rights reserved.