Operating Voltage Range for CY8CMBR3xxx Family of CapSense Express Devices
What is the valid operating voltage range for the CY8CMBR3xxx family of CapSense Express devices?
CY8CMBR3xxx CapSense Express devices are designed to operate at one of two voltage ranges: 1.8 V ±5% or 1.8 to 5.5 V.
CY8CMBR3xxx CapSense Express devices are not designed to operate continuously over the full range of 1.71 V to 5.5 V, but can operate continuously over the full range of 1.8 V to 5.5 V. This is important to know if your application is battery-powered and the operating voltage may gradually decrease as the battery gradually discharges.
Depending upon the operating voltage, you must enter the appropriate value for the SUPPLY_LOW_POWER bit in the I2C register map for the best CapSense performance. Note that setting an incorrect value for the SUPPLY_LOW_POWER bit in the register will not damage the part. However, the CapSense performance may be affected.
When operating in the 1.8 to 5.5 V range, the VCC pin must be connected to a 0.1μF capacitor and must not be connected to any other power source. When operating in the 1.8 V±5% range, VCC and VDD pins must be connected together.
- CapSense Express Devices
- capsense mbr3
- capsensea controllers
- capsensea express
- Voltage Range