Within 30W active PFC non isolated (fully compatible with SY5814 replacement).rar
General Description of CSC8818
CSC8818 is a LED for lighting and with the development of PFC buck LED drive control chip.And the use of quasi resonant mode, in order to obtain a higher efficiency, and meet therequirements of power factor. CSC8818 has a chip power supply undervoltage lockout (OLP),LED open circuit protection, output short circuit protection (SCP) and thermal protection(OTP) protection function.
●The CSC8818 has high ratio of performance and price, scheme has low cost, small size
● high power factor (0.960 @220Vac, full load)
● high efficiency (93%@220Vac, full load)
● high precision linear adjustment rate (± 0.5%@176Vac~265Vac)
● high precision load adjustment rate (± 0.8%@220Vac, Vo:37V~80V)
Features of CSC8818
● The built-in PFC, high PF, low THD.
● Up to 95% efficiency.
● Zero current detection, quasi resonant switching technology
● The output current accuracy of ± 3% LED
● 0.3V current sense reference voltage, low resistance and therefore reduce the loss.
● LED short circuit protection and reliable and open circuit protection
● Ultra low starting current (14uA)
● Ultra low (10mA) working current
● FB feedback high resistance, low power consumption
● LED short circuit protection and reliable and open circuit protection
● The current sampling resistor short-circuit or open circuit protection
● Saturation of transformer protection
● By the current of the primary side cycle current limit
● The SOT23-6 package
Applications of CSC8818
● GU10/E27 LED bulb lamp, lamp
● LED PAR30/PAR38
● LED fluorescent lamp
● Other LED lighting
Pin Configurations of CSC8818
Pin Description of CSC8818
Pin Number
| Pin Name
| Description
|
1
| ISEN
| The current detection: sampling switch current, resistor to ground |
2
| GND
| Grounding system
|
3
| COMP | An external resistor capacitor to ground, the control loop of the whole system stability
|
4
| ZCS | Zero current detection, at the same time voltage when the foot is more than 1.4V and the maintenance of 700ns, the function of overvoltage protection will open |
5
| VIN | Gate drive to the external MOSFET
|
Typical application diagram CSC8818：
Keywords: CSCHIP, Silergy, SY5814, BP2309, SD6900, MT7838, BP2329, single stage, APFC active power factor,, high PF value, low THD, SY5814, CSC8818, PFC bulb lamp non isolation belt drive, panel light non isolated driving bulb lamp driver, isolated constant current drive, isolation bulb power, CSC8818, SY5814 specification, SY5814 power chip, SY5814A, LED drivin
