FL6300A

The FL6300A general lighting power controller includes a highly integrated PWM controller and provides several features to enhance the performance of flyback converters in medium- to high-power lumens applications.

The FL6300A is applied on quasi-resonant flyback converters where maximum operating frequency is below 100KHz. A built-in HV startup circuit can provide more startup current to reduce the startup time of the controller. Once the V_DD voltage exceeds the turn-on threshold voltage, the HV startup function is disabled to reduce power consumption. An internal valley voltage detector ensures that the power system operates at quasi-resonant operation over a wide-range of line voltage and load conditions, as well as reducing switching loss to minimize switching voltage on the drain of the power MOSFET.     

To minimize standby power consumption and improve light-load efficiency, a proprietary green-mode function provides off-time modulation to decrease switching frequency and perform extended valley voltage switching to keep to a minimum switching voltage. The operating frequency is limited by minimum t_OFF time, which is 38µs to 8µs. FL6300A also provides many protection functions. Pulse-by-pulse current limiting ensures the fixed-peak current limit level, even when a short circuit occurs. Once an open-circuit failure occurs in the feedback loop, the internal protection circuit disables PWM output immediately. As long as V_DD drops below the turn-off threshold voltage, the controller also disables PWM output. The gate output is clamped at 18V to protect the power MOS from high gate-source voltage conditions. The minimum t_OFF time limit prevents the system frequency from being too high. If the DET pin triggers over-voltage protection (OVP), internal over-temperature protection (OTP) is triggered and the power system enters latch-mode until AC power is removed.

• Fairchild 1,000 piece Budgetary Pricing. *
• If there is no sample button displayed at the top of the page, please contact one of the Fairchild distributors or your local sales office to obtain samples.
• Top mark packaging information for product FL6300A is available. **

Product	Product Status	Eco Status	*Pricing	Package Type	Leads	Packing Method	Package Drawing	**Package Marking Convention	Qualification Support	RoHS IPC1752	RoHS/REACH/ JIG Certificate of Compliance
FL6300AMY	Full Production	Green as of Oct 2010	$0.67	SO 8L NB	8	TAPE REEL		Line 1:$Y (Fairchild logo) &Z (Asm. Plant Code) &2 (2-Digit Date Code) &K Line 2:FL6300A Line 3:MYC	Moisture Sensitivity Level (MSL) :  1   Max Reflow Temp :  260