SX8645I05AWLTRT Semtech, SX8645I05AWLTRT Datasheet - Page 36
SX8645I05AWLTRT
Manufacturer Part Number
SX8645I05AWLTRT
Description
12-ch Capacitive Touch Solution (Button & Wheel)
Manufacturer
Semtech
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SX8645
Ultra Low Power, Capacitive Button and Wheel
Touch Controller (12 sensors) with Enhanced LED Drivers
ADVANCED COMMUNICATIONS & SENSING
DATASHEET
4.4 Power management pins
The power management pins consist of the Power, Ground and Regulator pins.
VDD
VDD is a power pin and is the main power supply for the SX8645.
VDD has protection to GROUND.
Figure 42 shows a simplified diagram of the VDD pin.
SX8645
VDD
VDD
Simplified diagram of VDD
Figure 42
GND
The SX8645 has four ground pins all named GND. These pins and the package center pad need to be connected
to ground potential.
The GND has protection to VDD.
Figure 43 shows a simplified diagram of the GND pin.
SX8645
VDD
GND
GND
Simplified diagram of GND
Figure 43
Revision 7_5, February 10
© 2010 Semtech Corp.
www.semtech.com
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