TCS34005FN datasheet(24/35 Pages) OSRAM

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Datasheet, Public

Page 23

[v2-00] 2023-Feb-09

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TCS3400 − Power Supply Considerations

Place a 1-μF low-ESR decoupling capacitor as close as possible

to the VDD pin.

Figure 34:

Typical Application Hardware Circuit

VBUS in the above figures refers to the I²C bus voltage which is

either VDD or 1.8V. Be sure to apply the specified I²C bus voltage

shown in the Ordering & Contact Information for the specific

device being used.

The I²C signals and the Interrupt are open-drain outputs and

require pull-up resistors. The pull-up resistor (RP) value is a

function of the I²C bus speed, the I²C bus voltage, and the

capacitive load. The ams OSRAM EVM running at 400 kbit/s, uses

1.5-kΩ resistors. A 10-kΩ pull-up resistor (RPI) can be used for

the interrupt line.

Power Supply Considerations

TCS3400

VDD

1 µF

VBUS

GND

I/C

INT

SCL

SDA

RPI

Voltage

Regulator

Cap sized

per

regulator

specs

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