CY3280-MBR Cypress Semiconductor Corp, CY3280-MBR Datasheet - Page 19

• Manufacturer Part Number: CY3280-MBR
• Description: BOARD EVAL CAPSENSE EXPRESS
• Manufacturer: Cypress Semiconductor Corp
• Series: CapSense® Express™ SmartSense™r

Specifications of CY3280-MBR

• Design Resources: CY3280-MBR Schematic CY3280-MBR Bill of Materials CY3280-MBR Gerber Files CY3280-MBR Board Layout
• Sensor Type: Touch, Capacitive
• Sensing Range: 4 Buttons/Keys
• Voltage - Supply: 3V
• Embedded: No
• Utilized Ic / Part: CY8CMBR2044
• Operating Voltage: 1.71 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Operating Current: 2.88 A
• Silicon Core Number: CY8CMBR2044
• Silicon Family Name: PSoC
• Kit Contents: 2x AAA Batteries, Axial Capacitors 10pF, 22pF, 33pF, 68pF, Quick Start Guide
• Rohs Compliant: Yes
• For Use With/related Products: CY8CMBR2044
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Interface: -
• Sensitivity: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 428-3083

3.6.2
3.6.3
CY3280-MBR CapSense Express with SmartSense Auto-Tuning Kit Guide, Doc. # 001-64772 Rev. **
Figure 3-11. Kit with Delay Off Feature Disabled
Enable Delay Off Feature
The Delay Off pin is connected to a potentiometer and helps to change the resistor value to all sup-
ported values. This potentiometer is marked as DELAY on the kit. The kit should be held such that
'DELAY' text is readable. Turn the potentiometer to the extreme left.
Touch the power button once to turn off the power and ensure the power LED is turned off. Press the
power button again to turn on the power. This is because, the CapSense controller should be reset
every time the hardware strapping inputs change. The Delay Off feature is now enabled.
Figure 3-12. Delay Potentiometer Turned Extreme Left
Test CapSense Buttons with Delay Off Feature Enabled
Touch any CapSense button; the respective LED turns on. When the finger is released, the LED
turns off after some delay. Play with it; the delay depends on the value of the resistor connected to
the Delay Off input. Keep the potentiometer at different positions to see different delays. Ensure
power is toggled every time the position of the potentiometer is changed. Refer the
data sheet
Figure 3-13. Test Sequence for Delay Off Feature
1. Touch a button; LED turns
on
1. Touch a button: LED turns on
for more information on this feature.
2. Release the button; LED
remains on
2. Release button; LED turns off immediately
without any action after
2 seconds
3. LED turns off automatically
CY8CMBR2044
Kit Features
19