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TCA9800

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SCPS264B – MARCH 2017 – REVISED FEBRUARY 2020

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11 Power Supply Recommendations

The following need to be ensured when designing with the TCA980x family:

•

VCCA is within the recommended voltage range

•

VCCB is within the recommended voltage range

There are no supply sequencing requirements, VCCA may ramp before, after, or at the same time as VCCB.

There are no supply dependency requirements. VCCA may be greater than, less than, or equal to VCCB. Each

supply has its own requirement of voltage range, but there is no required relationship between VCCA and VCCB

values.

It is recommended that decoupling capacitors be used on the power supplies (0.1 µF and 1 µF) and that they be

placed as close as possible to the VCCA and VCCB pins.