TMC262 DATASHEET (Rev. 2.07 / 2013-FEB-14)
43
12 Power Supply Sequencing
The TMC262 generates its own 5V supply for all internal operations. The internal reset of the chip is
derived from the supply voltage regulator in order to ensure a clean start-up of the device after
power up. During start up, the SPI unit is in reset and cannot be addressed. All registers become
cleared.
VCC_IO limits the voltage allowable on the inputs and outputs and is used for driving the outputs,
but input levels thresholds are not depending on the actual level of VCC_IO. Therefore, the startup
sequence of the VCC_IO power supply with respect to VS is not important.
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