MAX22518AWA+ Analog Devices

EVALUATION KIT AVAILABLE Click here for production status of specific part numbers. MAX22517-MAX22519 Self-Powered, 2-Channel, 3.5kV Digital RMS Isolator General Description Benefits and Features The MAX22517MAX22519 are dual-channel digital gal- Robust Protection in Small Footprint vanic isolators with integrated field-side supply using Max- Integrated Isolated Field-Side Supply im s proprietary process technology. The field-side power Integrated Galvanic Digital Isolation is supplied by the logic-side using an integrated isolated Integrated Surge and Short Protection with External DC-DC converter. This approach eliminates the bulky and Series Resistor expensive external isolated power supply when the power 24VAC Short Protection demand of the field side is small. All of the devices in the 1kV Line-to-Ground and 2kV Line-to-Line family feature basic isolation with a withstand voltage rat- Surge Tolerance (1.2/50s Waveform) ing of 3.5kV for 60s or 445V of continuous oper- Compact 8-Pin Wide-Body SOIC Package (5.5mm RMS RMS ation. With a single resistor on each input, the inputs of Creepage) the MAX22517MAX22519 can withstand 1.2/50s surge Robust Galvanic Isolation of Digital Signals pulses up to 2kV between inputs (common mode) or 3.5kV Isolation Voltage for 60s (V ) RMS ISO up to 1kV between input and field ground (differential), 445V Continuous Working Voltage (V ) RMS IOWM as well as continuous shorts to 24VAC. The Design Flexibility MAX22517MAX22519 provide compact, reliable, and 220A Field-Side Supply External Load Capability cost-efficient solutions for applications such as industrial 3V to 5.5V Logic-Side Supply IoT, industrial networking systems, and building automa- -40C to +125C Operating Temperature Range tion. Both sides of the isolators are powered from a single 3.0V Safety Regulatory Approvals to 5.5V supply on the logic side, which also sets the output UL According to UL1577 logic level. Both channels of the MAX22517MAX22519 transfer data from the field side to the logic side and are cUL According to CSA Bulletin 5A always enabled. Each output is high when the correspond- Ordering Information appears at end of data sheet. ing input is high and low when the corresponding input is low. Devices are available with either push-pull or open-drain outputs, and output default states are either logic-high (push-pull version) or high impedance (open-drain ver- sions). The default is the state the output assumes when either power domain of the device is undervoltage or the input is open circuit. See the Ordering Information for the part numbers associated with each option. All of the devices in the MAX22517MAX22519 family are available in a 8-pin wide-body SOIC package with 5.5mm of creepage and clearance. The package material has a minimum comparative tracking index (CTI) of 400V, which gives it a group II rating in creepage tables. All devices are rated for operation at ambient temperatures of -40C to +125C. Applications Industrial IoT Industrial Networking Systems Building Automation Medical Equipment 19-100722 Rev 0 1/20MAX22517-MAX22519 Self-Powered, 2-Channel, 3.5kV Digital RMS Isolator Dual Relay Contact Monitoring System 3.3V MAX22517MAX22517 VDDF VDDL POWER DC-DC 0.1F 0.1F 1000pF CHARGE 27k 27k PUMP CONTROLLER RELAY CONTACT 10k IN1F OUT1L GPI1 C RELAY DIS 10k IN2F OUT2L GPI2 C RELAY DIS GNDF GNDL 19-100722 www.maximintegrated.com Maxim Integrated 2