Evaluation Kit Design Tools Support Available Resources and Models Click here to ask an associate for production status of specific part numbers. Reinforced, Fast, Low-Power, MAX22444MAX22446 Four-Channel Digital Isolators General Description Benefits and Features Reinforced Galvanic Isolation for Fast Digital Signals The MAX22444MAX22446 are reinforced, fast, low- Up to 200Mbps Maximum Data Rate power 4-channel digital galvanic isolators using Maxims Withstands 5kV for 60s (V ) proprietary process technology. These devices transfer RMS ISO Continuously Withstands 1500V (V ) RMS IOWM digital signals between circuits with different power Withstands 12.8kV Surge Between GNDA and domains, using as little as 0.74mW per channel at 1Mbps GNDB with 1.2/50s waveform (1.8V supply). All of the devices in the family feature High CMTI (50kV/s, Typical) reinforced isolation for a withstand voltage rating of 5kV for 60 seconds. Low Power Consumption RMS 0.74mW per Channel at 1Mbps with V = 1.8V DD The MAX22444MAX22446 family offers all possible 1.4mW per Channel at 1Mbps with V = 3.3V DD unidirectional channel configurations to accommodate 3.2mW per Channel at 100Mbps with V = 1.8V DD any 4-channel design, including SPI, RS-485, and Options to Support a Broad Range of Applications digital I/O applications. Output enable for the A side of the MAX22445R/S/U/V is active-low, making them ideal for 2 Maximum Data Rates (200Mbps, 25Mbps) isolating a port on a shared SPI bus since the CS signal 3 Direction Configurations can directly enable the MISO signal on the isolator. All Active-High or Active-Low Enable Inputs other output enables in the MAX22444-MAX22446 family 2 Fixed Output Default States (High/Low) or Pin- are the traditional active-high. Selectable (M/N Versions) All channels on the MAX22444MAX22446M/N are Applications always enabled, however, the default state of the outputs Isolated SPI Interface of these devices is selectable. Fieldbus Communications for Industrial Automation Devices are available with a maximum data rate of either Isolated RS-485/RS-422, CAN 25Mbps or 200Mbps, and with outputs that are either Battery Management default-high or default-low. The default is the state the output Medical Systems assumes when the input is either not powered or is open- circuit. See the Ordering Information and Product Selector Safety Regulatory Approvals Guide for suffixes associated with each option. Independent 1.71V to 5.5V supplies on each side of the isolator also UL According to UL1577 make the devices suitable for use as level translators. cUL According to CSA Bulletin 5A All of the devices in the MAX22444MAX22446 family are VDE 0884-11 Reinforced Isolation available in a 16-pin wide-body SOIC package with 8mm of creepage and clearance. The package material has a minimum comparative tracking index (CTI) of 400, which gives it a group II rat ing in creepage tables. All devices Ordering Information and Product Selector Guide appear at end of data sheet. are rated for operation at ambient temperatures of -40C to +125C. 19-100188 Rev 9 9/21 2021 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. One Analog Way, Wilmington, MA 01887 U.S.A. Tel: 781.329.4700 2021 Analog Devices, Inc. All rights reserved.MAX22444MAX22446 Reinforced, Fast, Low-Power, Four-Channel Digital Isolators Absolute Maximum Ratings V to GNDA ........................................................-0.3V to +6V Continuous Power Dissipation (T = +70C) DDA A V to GNDB ........................................................-0.3V to +6V Wide SOIC (derate 14.1mW/C above +70C).......1126.8mW DDB IN on Side A, ENA, ENA, DEFA to GNDA.............-0.3V to +6V Operating Temperature Range ......................... -40C to +125C IN on Side B, ENB, DEFB to GNDB .....................-0.3V to +6V Maximum Junction Temperature .....................................+150C OUT on Side A to GNDA ......................-0.3V to (V + 0.3V) Storage Temperature Range ............................ -60C to +150C DDA OUT on Side B to GNDB .....................-0.3V to (V + 0.3V) Lead Temperature (soldering, 10s) .................................+300C DDB Short-Circuit Continuous Current Soldering Temperature (reflow) .......................................+260C OUT on Side A to GNDA, OUT on Side B to GNDB ............................................30mA Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Package Information PACKAGE TYPE: 16 Wide SOIC Package Code W16MS+12 Outline Number 21-0042 Land Pattern Number 90-0107 THERMAL RESISTANCE, FOUR-LAYER BOARD Junction to Ambient ( ) 71C/W JA Junction to Case ( ) 24C/W JC Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial. For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a +, , or - in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. DC Electrical Characteristics (V - V = 1.71V to 5.5V, V - V = 1.71V to 5.5V, C = 15pF, T = -40C to +125C, unless otherwise noted. Typical DDA GNDA DDB GNDB L A values are at V - V = 3.3V, V - V = 3.3V, V = V , T = +25C, unless otherwise noted.) (Notes 1, 3) DDA GNDA DDB GNDB GNDA GNDB A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS POWER SUPPLY V Relative to GNDA 1.71 5.5 DDA Supply Voltage V V Relative to GNDB 1.71 5.5 DDB Undervoltage-Lockout V V rising 1.5 1.6 1.66 V UVLO DD Threshold Undervoltage-Lockout V mV UVLO HYST 45 Threshold Hysteresis Analog Devices 2 www.analog.com