CY8CLEDAC02 Cypress Semiconductor Corp, CY8CLEDAC02 Datasheet - Page 9

• Manufacturer Part Number: CY8CLEDAC02
• Description: IC CTLR AC-DC DIMMABLE LED 8SOIC
• Manufacturer: Cypress Semiconductor Corp
• Type: High Power, AC Input, Dimmabler

Specifications of CY8CLEDAC02

• Package / Case: 8-SOIC (3.9mm Width)
• Voltage - Supply: 8 V ~ 16 V
• Frequency: 200kHz
• Operating Temperature: -40°C ~ 85°C
• Number Of Outputs: 1
• Internal Switch(s): No
• Efficiency: 85%
• Topology: AC DC Offline Switcher
• Operating Supply Voltage: - 0.3 V to 18 V
• Maximum Supply Current: 20 mA
• Maximum Power Dissipation: 526 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Pin Count: 8
• Mounting: Surface Mount
• Operating Supply Voltage (max): 18V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Current - Output / Channel: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Protection Features
The CY8CLEDAC02 has full featured circuit protection not
normally available with other primary-side control solutions.
The built-in protection features include OOVP, OSCP, PCLP,
CSSP, and OTP.
In an event a protection is triggered (except PCLP and OOVP),
V
reset. The controller now initiates a new soft start cycle and
continues to attempt startup. It is unable to startup until the fault
condition is removed. PCLP does not trigger a shutdown. In case
of OOVP the IC stays latched and cannot perform a reset unless
the V
threshold.
Output Overvoltage Protection (OOVP)
The CY8CLEDAC02 includes a function that protects against an
output overvoltage. The output voltage is monitored by the
V
exceeds the overvoltage threshold V
Output Short Circuit Protection (OSCP)
The CY8CLEDAC02 includes a function that protects against an
output short circuit. The output voltage is monitored by the
Document Number: 001-54879 Rev. *C
CC
SENSE
discharges below V
CC
pin. The protection is triggered if the voltage at this pin
voltage drops approximately 1-2 V below V
CCUVL
and causes the digital logic to
Figure 10. Chopper Operation (Trailing Edge Dimmer Mode)
Figure 9. Chopper Operation (Leading Edge Dimmer Mode)
SENSE(MAX)
.
CCUVL
V
is below 0.22 V.
Overtemperature Protection (OTP)
The V
protection. Having an internal current source to the pin allows for
sensing the voltage across the NTC. The voltage across the pin
is sampled once every AC half cycle and the protection mode is
triggered if it reaches the V
Current Sense Resistor Short Protection (CSSP)
If the I
of an overcurrent condition not being detected. The
CY8CLEDAC02 has a separate circuit to detect this fault. This
protection mode is triggered if the I
short protection reference (V
Peak Current Limit protection (PCLP)
The I
current. This enables cycle-by-cycle peak current control and
limiting. When the I
limit threshold V
IC immediately turns off the MOSFET driver. During the next
switching cycle, the driver sends out a regular switching pulse
and turns off again if the OCP threshold is still reached. Normal
SENSE
SENSE
T
SENSE
pin along with an external NTC provides overtemperature
pin. The protection is triggered if the voltage at this pin
pin of the CY8CLEDAC02 monitors the primary peak
sense resistor is shorted, there is a potential danger
OCP
SENSE
, an overcurrent condition is detected and the
voltage is greater than the overcurrent
T
shutdown threshold (V
RSNS
).
SENSE
CY8CLEDAC02
voltage is below I
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SDTH
).
SENSE
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