CY3280-MBR Cypress Semiconductor Corp, CY3280-MBR Datasheet - Page 23

• 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

3.9.3
CY3280-MBR CapSense Express with SmartSense Auto-Tuning Kit Guide, Doc. # 001-64772 Rev. **
Figure 3-19. BTN1 Sensor Shorted to Ground
Test FMEA Feature - CapSense Button to Button Short
Follow these steps:
1. Press the power button to turn off the kit.
2. Connect a wire between pin# 4 and pin# 5 of connector J5. This shorts BTN1 and BTN2 sensors.
3. Press the power button to turn on the kit.
Figure 3-20. BTN1 Sensor Shorted to Ground
FMEA routine is executed by the CapSense controller on power up and the sensor to sensor
short is detected. On power up, observe a pulse of 5 ms width on LED1 and LED2 pins, which
indicates that BTN1 is shorted to BTN2. CapSense controller disables the button sensors that are
shorted to each other. Touch BTN1 or BTN2; note that the respective LEDs are not turned on.
Other buttons work normally.
Kit Features
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