CY3280-MBR Cypress Semiconductor Corp, CY3280-MBR Datasheet - Page 14

• 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

Kit Features
3.3
3.3.1
14
1. Touch a button; LED turns on
Figure 3-1. External Capacitor Connected to J5
Connect capacitors of different values (22 pF and 33 pF). Ensure that power is toggled after placing
a new capacitor. Button BTN2 continues to work. Now connect the 68-pF capacitor; BTN2 stops
working. If the sensor is touched, no LED turns on. This is because of SmartSense, which works up
to 41 pF.
Toggle Feature
The following steps help to demonstrate the Toggle feature of CY8CMBR2044 CapSense controller
using CY3280-MBR kit. Before proceeding, power the kit in default mode using the procedure pro-
vided in the section
Test CapSense Buttons with Toggle Feature Disabled
Touch a CapSense button; the respective LED turns on. When you release the finger, the LED turns
off. This is normal operation of the CapSense controller seen on all CapSense buttons.
Figure 3-2. Kit with Toggle Feature Disabled
CY3280-MBR CapSense Express with SmartSense Auto-Tuning Kit Guide, Doc. # 001-64772 Rev. **
2.5 Power the Kit on page
11.
2. Release the button; LED turns off