CY3268 Cypress Semiconductor Corp, CY3268 Datasheet - Page 10

• Manufacturer Part Number: CY3268
• Description: KIT STARTER POWERPSOC LIGHTING
• Manufacturer: Cypress Semiconductor Corp
• Series: PowerPSoC®r

Specifications of CY3268

• Current - Output / Channel: 1A
• Outputs And Type: 4, Non-Isolated
• Voltage - Output: 32V
• Features: Dimmable, I²C Interface
• Voltage - Input: 32V
• Utilized Ic / Part: CY8CLEDxx
• Operating Voltage: 12 V
• Operating Current: 1 A
• Description/function: Lighting Evaluation Kit
• Interface Type: I2C
• Software: Software Included
• Core Chip: Power PSoC
• No. Of Outputs: 4
• Output Current: 300mA
• Kit Contents: CY3268 PowerPSoC Board, 12V, 1A Power Supply, 2x Jumper Shunts, Software CD
• Rohs Compliant: Yes
• For Use With/related Products: PowerPSoC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 428-2882

5. Safety precautions
Precautions to be taken when preparing a circuit
Use only isolated power sources (either isolated power supplies or AC power through
isolation power transformers). This helps you to use a grounded oscilloscope and
reduces the possibility of risk of completing a circuit through your body or destroying
the test equipment.
Precautions to be taken before powering the circuit
Precautions while switching ON the circuit
Precautions while switching OFF or shutting down the circuit
Switch of all the power supplies and remove the power supply connections.
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Check for all the connections of the circuit and scope connections before power-
ing the circuit, to avoid shorting or any ground looping that may lead to electrical
shocks or damage of test equipment.
Know your board well - It is recommended to have your board schematic printed
out. Double check your wiring and circuit connections.
Apply only lower current settings (preferably 50mA) while using the hysteretic con-
troller. The demo firmware will be configured for driving 300mA through LEDs.
After functionality is proven, increase LED current by varying the Hysteretic DAC
thresholds, stopping at frequent levels to check for proper functioning of circuit or
for any components is hot or for any electrical noise that can affect the circuit's
operation. Do not cross the limits for each of the thresholds mentioned in the sam-
ple code.
Follow the FET turn ON sequence suggested in the demo firmware.
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