{"product_id":"4-channel-spi-interface-isolator-with-three-forward-and-one-reverse-direction-channels","title":"4 Channel SPI Interface Isolator with three Forward and One Reverse Direction Channels","description":"\u003cp\u003eThe project described here is a Quad-channel digital isolator with\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e5000V\u003csub\u003eRMS\u003c\/sub\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eisolation ratings per\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eUL 1577\u003c\/strong\u003e. The board has three forward and one reverse-direction channel which makes this project ideal for isolated SPI interface between microcontroller and subnode unit. The circuit provides isolation between the main SPI unit (microcontroller) and the SPI slave. It has high electromagnetic immunity, reduces noise, and high voltage traveling to the main unit. All the outputs are normally high, use ENABLE pins to disable the outputs. Connecting Enable 1 and Enable 2 pins to GND respective sides puts all outputs LOW and all outputs are disabled. If the input power or signal is lost then the output goes high. Level translation range:\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e2.25V to 5.5V.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003e4-wire SPI devices have four signals, 3 Forward and One Reverse-Direction\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eClock (SPI CLK, SCLK)\u003c\/li\u003e\n\u003cli\u003eChip select (CS)\u003c\/li\u003e\n\u003cli\u003emain out, subnode in (MOSI)\u003c\/li\u003e\n\u003cli\u003emain in, subnode out (MISO)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMore info about SPI:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.analog.com\/en\/analog-dialogue\/articles\/introduction-to-spi-interface.html\"\u003ehttps:\/\/www.analog.com\/en\/analog-dialogue\/articles\/introduction-to-spi-interface.html\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eThe\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003eISO7741\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edevice is a high-performance, quad-channel digital isolator with 5000 VRMS isolation ratings per UL 1577. This family includes devices with reinforced insulation ratings according to VDE, CSA, TUV, and CQC. The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eISO7741B\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edevice is designed for applications that require basic insulation ratings only. The ISO7741 device provides high electromagnetic immunity and low emissions at low power consumption while isolating CMOS or LVCMOS digital I\/Os. Each isolation channel has a logic input and output buffer separated by a double capacitive silicon dioxide (SiO2) insulation barrier. These devices come with enable pins which can be used to put the respective outputs in high impedance for multi-master driving applications and to reduce power consumption. The ISO7741 device has three forward and one reverse-direction channel.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWide supply range: 2.25 V to 5.5 V Main SPI Side\u003c\/li\u003e\n\u003cli\u003eWide supply range: 2.25 V to 5.5 V Subnode SPI Side\u003c\/li\u003e\n\u003cli\u003eLevel Translation Range: 2.25V to 5.5V\u003c\/li\u003e\n\u003cli\u003e2 x Power LED Main SPI side and Subnode Side\u003c\/li\u003e\n\u003cli\u003e100 Mbps data rate\u003c\/li\u003e\n\u003cli\u003eRobust isolation barrier\u003c\/li\u003e\n\u003cli\u003e100-year projected lifetime at 1500 VRMS working voltage\u003c\/li\u003e\n\u003cli\u003eUp to 5000 VRMS isolation rating\u003c\/li\u003e\n\u003cli\u003eUp to 12.8 kV surge capability\u003c\/li\u003e\n\u003cli\u003e±100 kV\/µs typical CMTI\u003c\/li\u003e\n\u003cli\u003eDefault output high\u003c\/li\u003e\n\u003cli\u003eWide temperature range: –55°C to 125°C\u003c\/li\u003e\n\u003cli\u003eLow power consumption, typical 1.5 mA per channel at 1 Mbps\u003c\/li\u003e\n\u003cli\u003eLow propagation delay: 10.7 ns typical (5-V Supplies)\u003c\/li\u003e\n\u003cli\u003eRobust electromagnetic compatibility (EMC)\u003c\/li\u003e\n\u003cli\u003eSystem-level ESD, EFT, and surge immunity\u003c\/li\u003e\n\u003cli\u003e±8 kV IEC 61000-4-2 contact discharge protection across the isolation barrier\u003c\/li\u003e\n\u003cli\u003eLow emissions\u003c\/li\u003e\n\u003cli\u003ePCB dimensions: 40.64 x 27.94mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"dotfry","offers":[{"title":"Default Title","offer_id":47193602949292,"sku":"C105","price":12.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/6436\/7532\/files\/C105A.jpg?v=1789220083","url":"https:\/\/dotfry.com\/products\/4-channel-spi-interface-isolator-with-three-forward-and-one-reverse-direction-channels","provider":"dotfry","version":"1.0","type":"link"}