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Analog Devices - Dual-Channel Isolators

Numéro de référence ADuM5212
Description Dual-Channel Isolators
Fabricant Analog Devices 
Logo Analog Devices 





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ADuM5212 fiche technique
Data Sheet
Dual-Channel Isolators with
Integrated DC-to-DC Converters
ADuM5210/ADuM5211/ADuM5212
FEATURES
isoPower integrated, isolated dc-to-dc converter
Regulated 3.15 V to 5.25 V output
Up to 150 mW output power
Dual dc-to-100 Mbps (NRZ) signal isolation channels
Soft start power supply
20-lead SSOP package with 5.3 mm creepage
Supports SPI up to 15 MHz
High temperature operation: 105°C
High common-mode transient immunity: >25 kV/µs
Safety and regulatory approvals
UL recognition (pending)
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
VIORM = 560 V peak
APPLICATIONS
RS-232 transceivers
Power supply start-up bias and gate drives
Isolated sensor interfaces
Industrial PLCs
GENERAL DESCRIPTION
The ADuM5210/ADuM5211/ADuM52121 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 regulated, isolated power that is adjustable
between 3.15 V and 5.25 V. Input supply voltages can range from
slightly below the required output to significantly higher. Popular
voltage combinations and their associated power levels are shown
in Table 1.
The ADuM5210/ADuM5211/ADuM5212 eliminate the need for
a separate, isolated dc-to-dc converter in low power, isolated
designs. The iCoupler chip-scale transformer technology is used for
isolated logic signals and for the magnetic components of the dc-
to-dc converter. The result is a small form factor, total isolation
solution.
isoPower uses high frequency switching elements to transfer
power through its transformer. Take special care during printed
circuit board (PCB) layout to meet emissions standards. See the
AN-0971 Application Note for board layout recommendations.
FUNCTIONAL BLOCK DIAGRAM
VDD1 1
GNDP 2
VIA/VOA 3
VIB/VOB 4
GNDP 5
GNDP 6
NC 7
PDIS 8
VDDP 9
GNDP 10
20 VDD2
2-CHANNEL iCoupler CORE
ADuM5210/ADuM5211/
ADuM5212
19 GNDISO
18 VOA/VIA
17 VOB/VIB
16 GNDISO
15 GNDISO
14 NC
PCS
OSC
13 VSEL
1.25V 12 VISO
RECT REG
11 GNDISO
Figure 1. ADuM5210/ADuM5211/ADuM5212
Table 1. Power Levels
Input Voltage (V) Output Voltage (V)
55
5 3.3
3.3 3.3
Output Power (mW)
150
100
66
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
Document Feedback
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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
©2013 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com

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