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ISO7840, ISO7840F

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SLLSEN2B – JULY 2015 – REVISED APRIL 2016

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10 Power Supply Recommendations

To help ensure reliable operation at data rates and supply voltages, a 0.1-μF bypass capacitor is recommended

at input and output supply pins (VCC1 and VCC2). The capacitors should be placed as close to the supply pins as

possible. If only a single primary-side power supply is available in an application, isolated power can be

generated for the secondary-side with the help of a transformer driver such as Texas InstrumentsSN6501. For

such applications, detailed power supply design and transformer selection recommendations are available in

SN6501 Transformer Driver for Isolated Power Supplies.