Datasheet ADuM5240, ADuM5241, ADuM5242 (Analog Devices)

link to page 1
Dual-Channel Isolators with iso Power Integrated DC-to-DC Converter, 50 mW Data Sheet ADuM5240/ADuM5241/ADuM5242 FEATURES FUNCTIONAL BLOCK DIAGRAMS Integrated isolated dc-to-dc converter Regulated 5 V/10 mA output VDD 1 OSC. RECT. REG. 8 VISO Dual dc to 1 Mbps (NRZ) signal isolation channels Narrow-body, 8-lead SOIC package VIA 2 ENCODE DECODE 7 VOA RoHS compliant High temperature operation: 105°C VIB 3 ENCODE DECODE 6 VOB Precise timing characteristics
01 0
3 ns maximum pulse width distortion
4-
GND 4 5 GNDISO
01
3 ns maximum channel-to-channel matching
06 Figure 1. ADuM5240
70 ns maximum propagation delay High common-mode transient immunity: >25 kV/μs Safety and regulatory approvals UL recognition VDD 1 OSC. RECT. REG. 8 VISO 2500 V rms for 1 minute, per UL 1577 CSA Component Acceptance Notice #5A VOA 2 DECODE ENCODE 7 VIA VDE certificate of conformity DIN V VDE V 0884-10 (VDE V 0884-10):2006-12 VIB 3 ENCODE DECODE 6 VOB VIORM = 560 V peak
02 0 4-
GND 4 5 GNDISO
01 06
GENERAL DESCRIPTION
Figure 2. ADuM5241 The ADuM524x1 are dual-channel digital isolators with isoPower® integrated, isolated power. Based on the Analog Devices, Inc., iCoupler® technology, a chip scale dc-to-dc converter provides
VDD 1 OSC. RECT. REG. 8 VISO
up to 50 mW of regulated, isolated power at 5 V, which eliminates the need for a separate isolated dc-to-dc converter in low power
VOA 2 DECODE ENCODE 7 VIA
isolated designs. The Analog Devices chip scale transformer iCoupler technology is used both for the isolation of the logic
V DECODE OB 3 ENCODE 6 VIB
signals as well as for the dc-to-dc converter. The result is a small form factor, total isolation solution. 03 0 4-
GND 4 5 GNDISO
01 06 The ADuM524x isolators provide two independent isolation Figure 3. ADuM5242 channels in a variety of channel configurations, operating from a 5 V input supply. ADuM524x units can be used in combination with other iCoupler products to achieve greater channel counts. 1 Protected by U.S. Patents 5,952,849; 6,873,065; and 7,075,329.
Rev. B Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices f or its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. 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. Tel: 781.329.4700 www.analog.com Trademarks and registered trademarks are the property of their respective owners. Fax: 781.461.3113 ©2007–2012 Analog Devices, Inc. Al l rights reserved.
Document Outline Features General Description Functional Block Diagrams Table of Contents Revision History Specifications Electrical Characteristics Package Characteristics Regulatory Information Insulation and Safety-Related Specifications DIN V VDE V 0884-10 (VDE V 0884-10) Insulation Characteristics Recommended Operating Conditions Absolute Maximum Ratings ESD Caution Pin Configurations and Function Descriptions Typical Performance Characteristics Applications Information DC-to-DC Converter Propagation Delay-Related Parameters DC Correctness and Magnetic Field Immunity Thermal Analysis PCB Layout Increasing Available Power Insulation Lifetime Outline Dimensions Ordering Guide