EVALUATION KIT AVAILABLE Click here to ask about the production status of specific part numbers. 2 MAX14937 Two Channel, 5kV I C Isolator RMS General Description Benefits and Features 2 The MAX14937 is a two-channel, 5kV I C digital isolator RMS Robust Galvanic Isolation of Digital Signals utilizing Maxims proprietary process technology. For Withstands 5kV for 60s (V ) RMS ISO applications requiring 2.75kV of isolation, see the RMS Continuously Withstands 848V (V ) RMS IOWM MAX14933 data sheet. The device transfers digital 1200V Repetitive Peak Voltage (V ) PEAK IORM signals between circuits with different power domains at Withstands 10kV Surge per IEC 61000-4-5 ambient temperatures up to +125C. Interfaces Directly with Most Micros and FPGAs The device offers two bidirectional, open-drain channels for Accepts 2.25V to 5.5V Supplies 2 applications, such as I C, that require data to be transmit- Bidirectional Data Transfer from DC to 1.7MHz ted in both directions on the same line. To prevent latch- Low Power Consumption up action, the A-side outputs comprise special buffers that regulate the logic-low voltage at 0.9V (max), and the 5.3mA per Channel Typical at 1.7MHz input logic-low threshold is at least 50mV lower than the Safety Regulatory Approvals output logic-low voltage. The B side features conventional (See Safety Regulatory Approvals) buffers that do not regulate logic-low output voltage. UL According to UL1577 The device features independent 2.25V to 5.5V cUL According to CSA Bulletin 5A supplies on each side of the isolator. The MAX14937 VDE 0884-11 Basic Insulation operates from DC to 1.7MHz and can be used in isolated 2 I C busses with clock stretching. Ordering Information appears at end of data sheet. The MAX14937 is available in a 16-pin, wide-body (10.3mm x 7.5mm) SOIC package, and is rated for Functional Diagram operation at ambient temperatures of -40C to +125C. Applications V V DDA DDB 2 I C, SMBus, PMBus Interfaces Power Supplies MAX14937 Battery Management Instrumentation I/OA1 I/OB1 5kV RMS DIGITAL ISOLATOR I/OA2 I/OB2 GNDA GNDB PMBus is a trademark of SMIF, Inc. 19-7535 Rev 4 11/202 MAX14937 Two Channel, 5kV I C Isolator RMS 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 I/OA to GNDA ........................................................-0.3V to +6V Operating Temperature Range ......................... -40C to +125C I/OB to GNDB ........................................................-0.3V to +6V Maximum Junction Temperature .....................................+150C Short-Circuit Duration Storage Temperature Range ............................ -65C to +150C (I/OA to GNDA, I/OB to GNDB) ........................Continuous Lead Temperature (soldering, 10s) .................................+300C Soldering Temperature (reflow) ......................................+260C Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and 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 16 Wide SOIC Package Code W16M+8 Outline Number 21-0042 Land Pattern Number 90-0107 THERMAL RESISTANCE, FOUR-LAYER BOARD Junction-to-Ambient Thermal Resistance ( ) 71C/W JA Junction-to-Case Thermal Resistance ( ) 23C/W JC 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. 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. Maxim Integrated 2 www.maximintegrated.com