The EVAL-ADM1281-AZ is a compact, full-featured evaluation board for the ADM1281. The board layout provides a clear visual of all the peripheral components and the hot-swap power path. The layout also maximizes the ability of the board to dissipate heat for some of the key components on the power path, which allows the evaluation of very high current hot-swap setups.
Five sense-resistor slots and six multipackage FET slots provide great flexibility and allow a wide range of application setups.
Multiple test points allow easy access to all critical points/pins. Seven LEDs provide direct visual indication on variations in the board status, such as supply input, output, IC power-good output, fault output, current sense output, and general-purpose outputs (GPO). An AD7291 8-channel, I2C, 12-bit, successive approximation analog-to-digital converter (SAR ADC) allows users to measure voltages such as CSOUT and other pin voltages, as well as to read ambient board temperature through an I2C bus in real time.
The evaluation board supports I2C communication, which allows users to communicate with the ADM1281. The evaluation board also supports cascade setup so multiple evaluation boards can be connected together and share the same I2C bus.
The boards are fully compatible with the hot-swap and power monitoring evaluation software and the LTpowerPlay tools, which can be downloaded from the ADM1281 product page.
Users need a USB-SDP-CABLEZ or a DC1613A USB-to-I2C serial interface to use the evaluation software tools.
The standard evaluation board is prepopulated and tested with a 12 V, 73 A hot-swap design, which is capable of working with a 3 mF output capacitor.
mF output capacitor. Full specifications on the ADM1281 are available in the ADM1281 data sheet available from Analog Devices, Inc., and must be consulted with this user guide when using the EVAL-ADM1281-AZ evaluation board.
