Full/Low Speed 5 kV USB Digital Isolator Data Sheet ADuM4160 FEATURES FUNCTIONAL BLOCK DIAGRAM USB 2.0 compatible V 1 REG REG 16 V BUS1 BUS2 Low and full speed data rate: 1.5 Mbps and 12 Mbps GND 2 15 GND 1 2 Bidirectional communication V 3 14 V DD1 DD2 4.5 V to 5.5 V V operation BUS PDEN 4 13 SPD 7 mA maximum upstream supply current 1.5 Mbps SPU 5 12 PIN 8 mA maximum upstream supply current 12 Mbps UD 6 11 DD 2.3 mA maximum upstream idle current Upstream short-circuit protection UD+ 7 10 DD+ Class 3A contact ESD performance per ANSI/ESD STM5.1-2007 GND 8 9 GND 1 2 PU LOGIC PD LOGIC High temperature operation: 105C High common-mode transient immunity: >25 kV/s Figure 1. 16-lead SOIC wide-body package version Many microcontrollers implement USB so that it presents only 16-lead SOIC wide body enhanced creepage version the D+ and D lines to external pins. This is desirable in many RoHS compliant cases because it minimizes external components and simplifies Safety and regulatory approvals (RI-16 package) the design however, this presents particular challenges when UL recognition: 5000 V rms for 1 minute per isolation is required. USB lines must automatically switch between UL 1577 actively driving D+/D, receiving data, and allowing external CSA Component Acceptance Notice 5A resistors to set the idle state of the bus. The ADuM4160 provides IEC 60601-1: 250 V rms (reinforced) mechanisms for detecting the direction of data flow and control IEC 60950-1: 400 V rms (reinforced) over the state of the output buffers. Data direction is determined VDE Certificate of Conformity on a packet-by-packet basis. DIN V VDE V 0884-10 (VDE V 0884-10):2006-12 The ADuM4160 uses the edge detection based iCoupler tech- V = 846 V peak IORM nology in conjunction with internal logic to implement a APPLICATIONS transparent, easily configured, upstream facing port isolator. Isolating an upstream facing port provides several advantages USB peripheral isolation in simplicity, power management, and robust operation. Isolated USB hub Medical applications The isolator has propagation delay comparable to that of a standard hub and cable. It operates with the bus voltage on GENERAL DESCRIPTION either side ranging from 4.5 V to 5.5 V, allowing connection 1 The ADuM4160 is a USB port isolator, based on Analog Devices, directly to V by internally regulating the voltage to the signaling BUS Inc., iCoupler technology. Combining high speed CMOS and level. The ADuM4160 provides isolated control of the pull-up monolithic air core transformer technology, these isolation resistor to allow the peripheral to control connection timing. components provide outstanding performance characteristics The device has a low idle current so a suspend mode is not and are easily integrated with low and full speed USB-compatible required. A 2.5 kV version, the ADuM3160, is also available. peripheral devices. 1 Protected by U.S. Patents 5,952,849 6,873,065 7,075,329. Rev. D 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 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. 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Trademarks and registered trademarks are the property of their respective owners. 08171-001ADuM4160 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Absolute Maximum Ratings ............................................................7 Applications....................................................................................... 1 ESD Caution...................................................................................7 General Description ......................................................................... 1 Pin Configuration and Function Descriptions..............................8 Functional Block Diagram .............................................................. 1 Applications Information .............................................................. 10 Revision History ............................................................................... 2 Functional Description.............................................................. 10 Specifications..................................................................................... 3 Product Usage............................................................................. 10 Electrical Characteristics............................................................. 3 Compatibility of Upstream Applications ................................ 11 Package Characteristics ............................................................... 4 Power Supply Options ............................................................... 11 Regulatory Information............................................................... 4 Printed Circuit Board (PCB) Layout ....................................... 11 Insulation and Safety-Related Specifications............................ 5 DC Correctness and Magnetic Field Immunity..................... 11 DIN V VDE V 0884-10 (VDE V 0884-10) Insulation Insulation Lifetime..................................................................... 12 Characteristics .............................................................................. 5 Outline Dimensions....................................................................... 14 Recommended Operating Conditions ...................................... 6 Ordering Guide .......................................................................... 14 REVISION HISTORY 2/12Rev. C to Rev. D 8/10Rev. A to Rev. B Created Hyperlink for Safety and Regulatory Approvals Change to Data Sheet Title...............................................................1 Entry in Features Section................................................................. 1 Changes to Features Section ............................................................1 Changes to Applications Section.....................................................1 Changes to Table 3............................................................................ 4 Change to Table 4 ............................................................................. 5 Changes to General Description Section .......................................1 Updated Outline Dimensions ....................................................... 14 Changes to Table 3.............................................................................4 Changes to Ordering Guide .......................................................... 14 9/09Rev. 0 to Rev. A 10/10Rev. B to Rev. C Added USB Logo, Reformatted Page 1 ...........................................1 Changes to Features and General Description Section ............... 1 7/09Revision 0: Initial Version Changes to Endnote 3 in Table 1 and Table 3 ............................... 4 Changes to Table 4............................................................................ 5 Changes to Table 7 and Table 8....................................................... 7 Updated Outline Dimensions ....................................................... 14 Changes to Ordering Guide .......................................................... 14 Rev. D Page 2 of 16