Click here for production status of specific part numbers. MAX14483 6-Channel, Low-Power, 3.75kV , SPI Digital Isolator RMS General Description Benefits and Features The MAX14483 is a 6-channel, 3.75kV digital galvanic Saves Space and Components RMS isolator using Maxims proprietary process technology. 6 Isolated Channels in a 20-SSOP Package The six signal channels are individually optimized for SPI Low Propagation Delay on SCLK, SDI, and SDO applications and include very low propagation delay on Up to 100MHz Clock, 200Mbps Data Rate the SDI, SDO, and SCLK channels. The SDO channels 10ns Typical Propagation Delay tri-state control is enabled by the CS input as well as 2ns Maximum Pulse Width Distortion a second enable control input pin (SDOEN), allowing 250ps Typical Peak Jitter a single MAX14483 to isolate multiple SPI devices. To Robust Galvanic Isolation of Digital Signals simplify system design, an open-drain FAULT output can Withstands 3.75kV for 60s (V ) RMS ISO be wire ORed with error outputs from other devices. In Continuously Withstands 450V (V ) RMS IOWM addition, an auxiliary channel (AUX) is available for Withstands 10kV Surge between GNDA and passing timing or control signals from the master side GNDB with 1.2/50s Waveform to the slave side and power monitors (SAA, SBA) are High CMTI (50kV/s, Typical) provided for both power domains to signal if the opposite Flexible System Design side of the isolator is ready for operation. Independent Wide 1.71V to 5.5V Voltage Range on Each Side 1.71V to 5.5V supplies on each side of the isolator also SDOEN Control Pin for Sharing Isolators make the device suitable for use as a level translator. Open-Drain FAULT Channel for Shared Interrupt The MAX14483 has an isolation rating of 3.75kV for RMS on Master Side 60 seconds and is available in a 20-pin SSOP package Auxiliary Channel for Timing or Control with 5.5mm of creepage and clearance. The package Low Power Consumption material has a minimum comparative tracking index (CTI) 1.53mW per Channel at SCLK = 10MHz with of 400V, which gives it a group II rating in creepage tables. V = 3.3V DD The MAX14483 is rated for operation at ambient temperatures 0.77mW per Channel at SCLK = 10MHz with of -40C to +125C. V = 1.8V DD Applications Safety Regulatory Approvals Programmable Logic Controllers UL According to UL1577 Industrial Automation cUL According to CSA Bulletin 5A Process Automation Building Automation Robotics Ordering Information and Typical Operating Circuits appear General SPI-bus Isolation at end of data sheet. 19-100011 Rev 4 3/20MAX14483 6-Channel, Low-Power, 3.75kV , SPI Digital Isolator RMS Thermal Resistance, Four Layer Board Absolute Maximum Ratings Junction-to-Ambient Thermal Resistance ( ) ..........83C/W JA Junction-to-Case Thermal Resistance ( ) ...............33C/W V to GNDA, V to GNDB .............................-0.3V to +6V Short Circuit Continuous Current (OFAULT) ................... 100mA JC DDA DDB ICS, ISCLK, ISDI, IAUX, SDOEN, OFAULT Continuous Power Dissipation to GNDB ..............................................................-0.3V to +6V Single Layer Board T = +70C ..................................640mW A OSDO, SAA to GNDB ...........................-0.3V to (V + 0.3V) Derate above +70C ...................................................8mW/C DDB ISDO, IFAULT, IRDY to GNDA ................................-0.3V to +6V Multilayer Board T = +70C .......................................964mW A OCS, OSCLK, OSDI, OAUX, SBA Derate above +70C .................................................12mW/C to GNDA .............................................-0.3V to (V + 0.3V) Operating Temperature Range ......................... -40C to +125C DDA Short-Circuit Duration Maximum Junction Temperature .....................................+150C OCS, OSCLK, OSDI, OAUX, SBA to V Storage Temperature Range ............................ -60C to +150C DDA or GNDA ................................................................Continuous Soldering Temperature (reflow) .......................................+260C OSDO, SAA to V or GNDB .............................Continuous DDB 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 PACKAGE TYPE: 20 SSOP Package Code A20MS+7 Outline Number 21-0056 Land Pattern Number 90-0094 THERMAL RESISTANCE, SINGLE-LAYER BOARD Junction to Ambient ( ) 125C/W JA Junction to Case ( ) 33C/W JC THERMAL RESISTANCE, FOUR-LAYER BOARD Junction to Ambient ( ) 83C/W JA Junction to Case ( ) 33C/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. DC Electrical Characteristics (V - V = 1.71V to 5.5V, V - V = 1.71V to 5.5V, T = -40C to +125C, unless otherwise noted. Typical values are at DDA GNDA DDB GNDB A V - V = 3.3V, V - V = 3.3V, V = V , T = +25C, unless otherwise noted.) (Note 1) DDA GNDA DDB GNDB GNDA GNDB A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS POWER SUPPLY V 1.71 5.5 DDA Relative to GNDA Supply Voltage V V 1.71 5.5 DDB Relative to GNDB Undervoltage-Lockout V V rising 1.5 1.6 1.66 V UVLO DD Threshold Undervoltage-Lockout V 45 mV UVLO HYST Threshold Hysteresis Maxim Integrated 2 www.maximintegrated.com