6채널 SPI 인터페이스 절연 모듈 -MAX14483
(SPI ISOLATOR 3 CLICK)
개요
- 본 제품은 6채널 SPI 인터페이스 절연 모듈 -MAX14483입니다.
- 딜레이가 매우 낮은 6채널 3.75kVRMS 디지털 절연기 MAX14483 칩을 탑재하고 있습니다.
- SPI 인터페이스 장치로부터 메인 회로를 보호하고자 할 경우 사용이 가능한 제품입니다.
- 3.3V/5V 시스템과 사용이 가능합니다.
특징
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SPI Isolator 3 Click as its foundation uses the MAX14483, a 6-channel 3.75kVRMS digital isolator with a very low propagation delay on the SDI, SDO, and SCLK channels from Maxim Integrated. It provides galvanic isolation for digital signals transmitted between two ground domains. The device withstands up to 560Vpeak of continuous isolation and up to 3.75kVRMS for up to 60 seconds. The wide supply voltage range of both power pins allows the MAX14483 to be used for level translation and isolation.
The MAX14483 offers low-power operation, high electromagnetic interference immunity, and stable temperature performance through Maxim's proprietary process technology. The device isolates different ground domains and blocks high-voltage/high-current transients from sensitive or human interface circuitry. It also features an internal refresh circuit to ensure output accuracy when an input remains in the same state indefinitely.
SPI Isolator 3 Click communicates with MCU using the SPI serial interface with a maximum data rate of 200 Mbps. This Click board™ also comes with a SDO line enable control pin, labeled as OEN and routed on the RST pin of the mikroBUS™ socket, allowing MAX14483 to isolate multiple SPI devices. It also has a red LED indicator labeled as FLT to detect error outputs from other devices.
Besides an auxiliary channel, labeled as AUX, available for passing timing or control signals from the master side to the slave side, the MAX14483 also possesses power monitors for both power domains to signal if the opposite side of the isolator is ready for operation. The FLT and AUX channels are designed to support SPI devices that require control signals beyond the standard 4-wire SPI bus. Each channel is unidirectional; it only passes data in one direction with a maximum data rate of 25Mbps.
The monitor channels (SAA, SBA) are designed to pass DC signals and have significantly longer propagation delays than other channels, meaning they should not be used for data signals. SAA and SBA are set high when their respective opposite side of the isolator has power and is operating normally. When Side A or Side B is not powered, SAA or SBA is set low, and all outputs are set to their default state.
This Click board™ can operate with both 3.3V and 5V logic voltage levels selected via the VCC SEL jumper. This way, it is allowed for both 3.3V and 5V capable MCUs to use the SPI communication lines properly. However, the Click board™ comes equipped with a library containing easy-to-use functions and an example code that can be used, as a reference, for further development.
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Type Isolators,SPI Applications Can be used for general SPI-bus isolation and the industrial, process, and building automation, in programmable logic controllers, and many more. On-board modules MAX14483 - 6-channel 3.75kVRMS digital isolator with a very low propagation delay on the SDI, SDO, and SCLK channels from Maxim Integrated Key Features Low power consumption, 6 isolated channels, low propagation delay on SCLK, SDI, and SDO lines, robust galvanic isolation of digital signals, shared interrupt feature, auxiliary channel for timing or control, and more. Interface SPI Compatibility mikroBUS Click board size M (42.9 x 25.4 mm) Input Voltage 3.3V or 5V,External
