Maxim Integrated Products' new MAX14900E digital output switch can meet the needs of higher output, smaller size and lower power consumption in the field of industrial automation.
Compared to existing solutions, this eight-channel integrated circuit (IC) is 70 times faster, consumes more than 20% less power, and takes up 40% less space, which is faster and more localized today. All the factors needed for a smaller end product. It is controlled by an eight-bit parallel interface or a standard serial peripheral interface (SPI), which is also used for configuration and monitoring. Multiple devices can be daisy-chained to support additional I / O points through a single SPI interface. All channels require only three isolators to further save cost, board space, and power consumption. Serial mode includes cyclic redundancy check (CRC) to ensure data integrity, and global and per-channel diagnostics for remote system monitoring.
Maxim offers a complete reference design (MAXREFDES63 #) and an evaluation board (EV) with special prototyping capabilities. The credit card-sized reference design integrates the MAX14900E, a microcontroller, isolated I / O ports, power, UART, and USB ports, simplifying the process of integrating the device into the final OEM product design and provides a quick evaluation method. MAX14900E is specified over the -40C to + 125C temperature range
Key advantages 1-Low power consumption; High voltage: Eight digital channels require only 3mA (maximum) supply current; it operates from 10V to 36V and is therefore compatible with 24V power rails in many factory systems. 2-High Speed ??and Drive: Input-to-output propagation delay is 0.3usec (typical) /0.8usec (maximum), which supports fast switching rates up to 100kHz in a push-pull configuration. On-resistance is a key factor in static power consumption, only 85mohm (typical) and 165mohm (maximum). It can drive current loads up to 850mA; the outputs can be used in parallel to achieve higher drive current ratings. 3-Highly integrated and space-saving: Small 48-pin 7mm x 7mm QFN package; greatly reduces board space. 4-Data Integrity: Provides per-channel and global diagnostics / monitoring through its SPI port, and users can access I / O through an eight-bit parallel port. The serial link includes CRC error detection to enhance the integrity of the data link.
"Our proprietary high-voltage process and design expertise enables us to develop this switch," said Tony Partow, executive business manager at Maxim Integrated. "The processor interface provides users with key features such as per-channel and global diagnostics, and for data Complete CRC. "
Databeans Research Director Susie Inouye added:" This product is well-suited for programmable logic controllers, building HVAC systems, and high-speed industrial applications. It combines leading performance into a small package while also saving Energy and data integrity. "
