FL7730 ONSEMI | Alldatasheet
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© 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com FL7730 Rev. 1.0.8 FL7730 — Single-Stage Primary-Side-Regulation PWM Controller for PFC and LED Dimmable Driving FL7730 Single-Stage Primary-Side-Regulation PWM Controller for PFC and LED Dimmable Driving
Features
Compatible with Traditional TRIAC Control (No need to change existing lamp infrastructure: wall switch & wire) Compatible with Non-Dimming Lamp Designs Cost-Effective Solution without Input Bulk Capacitor and Feedback Circuitry Power Factor Correction (PFC) Accurate Constant-Current (CC) Control, Independent Online Voltage, Output Voltage, Magnetizing Inductance Variation Line Voltage Compensation for CC Control Linear Frequency Control for Better Efficiency and Simple Design Open-LED Protection Short-LED Protection Cycle-by-Cycle Current Limiting Over-Temperature Protection with Auto Restart Low Startup Current: 20 μA Low Operating Current: 5 mA SOP-8 Package Available Application Voltage Range: 80 VAC ~ 308 VAC
Applications
LED Lighting System
Description
This highly integrated PWM controller, FL7730, provides several features to enhance the performance of single- stage flyback converters. The proprietary topology, TRUECURRENT® enables the simplified circuit design for LED lighting applications. TRIAC dimming is smoothly managed by dimming brightness control without flicker. By using single-stage topology with primary-side regulation, an LED lighting board can be implemented with few external components and minimized cost. It does not require an input bulk capacitor or feedback circuitry. To implement good power factor and low total harmonic distortion, constant on-time control is utilized with an external capacitor connected to the COMI pin. Precise constant-current control regulates accurate output current versus changes in input voltage and output voltage. The operating frequency is proportionally changed by the output voltage to guarantee Discontinuous Conduction Mode (DCM) operation with higher efficiency and simpler design. The FL7730 provides protections such as open-LED, short-LED, and over-temperature protections. Current-limit level is automatically reduced to minimize output current and protect external components in a short-LED condition. The FL7730 controller is available in an 8-pin Small Outline Package (SOP). Related Resources Evaluation Board: FEBFL7730_L20L008A Evaluation Board: FEBFL7730_L20H008A
Ordering Information
Part Number Operating Temperature Range Package Packing Method FL7730MY_F116 -40°C to +125°C 8-Lead, Small Outline Package (SOP-8) Tape & Reel
Figure 3. Top Mark Figure 4. Pin Configuration the output-current regulation in constant current regulation.
3 GND Ground
4 VDD Power Supply. IC operating current and MOSFET driving current are supplied using this pin. 5 DIM Dimming. This pin controls the dimming operation of LED lighting.
8 GND Ground
© 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com FL7730 Rev. 1.0.8 4 FL7730 — Single-Stage Primary-Side-Regulation PWM Controller for PFC and LED Dimmable Driving Absolute Maximum Ratings Stresses exceeding the absolute maximum ratings may dam age the device. The device may not function or be operable above the recommended operating conditions and stressi ng the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only. Symbol Parameter Min. Max. Unit VVDD DC Supply Voltage (1,22) 30 V VVS VS Pin Input Voltage -0.3 7.0 V VCS CS Pin Input Voltage -0.3 7.0 V VDIM DIM Pin Input Voltage -0.3 7.0 V VCOMI COMI Pin Input Voltage -0.3 7.0 V VGATE GATE Pin Input Voltage -0.3 30.0 V PD Power Dissipation (TA＜50°C) 633 mW θJA Thermal Resistance (Junction to Air) 158 °C /W θJC Thermal Resistance (Junction to Case) 39 °C /W TJ Maximum Junction Temperature 150 °C TSTG Storage Temperature Range -55 150 °C TL Lead Temperature (Soldering, 10 Seconds) 260 °C Notes: 1. Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. 2. All voltage values, except differential voltag es, are given with respect to the GND pin. Recommended Operating Conditions The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended operating conditions are specified to ens ure optimal performance to the datasheet specificatio ns. Fairchild does not recommend exceeding them or designing to Absolute Maximum Ratings. Symbol Parameter Min. Max. Unit TA Operating Ambient Te mperature -40 125 °C
© 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com FL7730 Rev. 1.0.8 5 FL7730 — Single-Stage Primary-Side-Regulation PWM Controller for PFC and LED Dimmable Driving
Electrical Characteristics
VDD=20 V and TA=25°C unless otherwise specified. Symbol Parameter Condition Min. Typ. Max. Unit VDD Section VDD-ON Turn-On Threshold Voltage 14.5 16.0 17.5 V VDD-OFF Turn-Off Threshold Volta ge 6.75 7.75 8.75 V IDD-OP Operating Current Maximum Frequency, CLOAD = 1 nF 3 4 5 mA IDD-ST Startup Current V DD = VDD-ON – 0.16 V 2 20 μA VOVP V DD Over-Voltage-Protection 22.0 23.5 25.0 V Gate Section VOL Output Voltage Low V DD=20 V,IGATE=-1 mA 1.5 V VOH Output Voltage High V DD=10 V,IGATE=+1 mA 5 V Isource Peak Sourcing Current V DD = 10 ~ 20 V 60 mA Isink Peak Sinking Current V DD = 10 ~ 20 V 180 mA tr Rising Time C LOAD = 1 nF 100 150 200 ns tf Falling Time C LOAD = 1 nF 20 60 100 ns VCLAMP Output Clamp Voltage 12 15 18 V Oscillator Section fMAX-CC Maximum Frequency in CC 60 65 70 kHz fMIN-CC Minimum Frequency in CC 21.0 23.5 26.0 kHz VSMAX-CC V S for Maximum Frequency in CC f = f MAX -2 kHz 2.25 2.35 2.45 V VSMIN-CC V S for Minimum Frequency in CC f = f MIN +2 kHz 0.55 0.85 1.15 V tON(MAX) Maximum Turn-On Time 12 14 16 µs Current Sense Section VRV Reference Voltage 2.475 2.500 2.525 V VCCR EAI Voltage for Constant Current Regulation VCS = 0.44 V 2.38 2.43 2.48 V tLEB Leading-Edge Blanking Time 300 ns tMIN Minimum On Time in CC V COMI = 0 V 600 ns tPD Propagation Delay to GATE 50 100 150 ns ttdis-BNK t DIS Blanking Time of VS 1.5 µs ICOMI-BNK VS Current for COMI Blanking 100 µA Current-Error Amplifier Section Gm Transconductance 85 µmho ICOMI-SINK COMI Sink Current V EAI=3 V, VCOMI=5 V 28 38 µA ICOMI-SOURCE COMI Source Current V EAI=2 V, VCOMI=0 V 28 38 µA VCOMI-HGH COMI High Voltage V EAI=2 V 4.9 V VCOMI-LOW COMI Low Voltage V EAI=3 V 0.1 V Continued on the following page…
© 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com FL7730 Rev. 1.0.8 6 FL7730 — Single-Stage Primary-Side-Regulation PWM Controller for PFC and LED Dimmable Driving VDD=15 V and TA=25°C unless otherwise specified. Symbol Parameter Condition Min. Typ. Max. Unit Over-Current Protection Section VOCP V CS Threshold Voltage for OCP 0.60 0.67 0.74 V VLowOCP V CS Threshold Voltage for Low OCP 0.13 0.18 0.23 V tstartup Startup Time 13 ms VLowOCP-EN VS Threshold Voltage to Enable Low OCP level 0.40 V VLowOCP-DIS VS Threshold Voltage to Disable Low OCP level 0.60 V Over-Temperature Protection Section TOTP Threshold Temperature for OTP (3) 140 150 160 oC TOTP-HYS Restart Junction Temperature Hysteresis 10 oC Dimming Section VDIM-LOW Maximum VDIM at Low Dimming Angle Range 2.45 2.50 2.55 V VDIM-HIGH Maximum VDIM at High Dimming Angle Range 3.43 3.50 3.57 V DSLOW VDIM vs. Vcs,offset Slope at Low Dimming Angle Range 0.19 V/V DSHIGH VDIM vs. Vcs,offset Slope at High Dimming Angle Range 0.58 V/V Note: 3. If over-temperature protection is activated, the power system enters Auto Recovery Mode and output is disabled. Device operation above the maximum junction temperature is NOT guaranteed.
Figure 26. 8-Lead , SOIC, JEDEC MS-012, .150" Narrow Body warranty therein, which covers Fairchild products. http://www.fairchildsemi.com/packaging/. B) ALL DIMENSIONS ARE IN MILLIMETERS.
1.75 MAX
© 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com FL7730 Rev. 1.0.8 13 FL7730 — Single-Stage Primary-Side-Regulation PWM Controller for PFC and LED Dimmable Driving
www.onsemi.com ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries i n the United States and/or other countries. ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property . A listing of ON Semiconductor’s product/patent ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, reg ulations and safety requirements or standards, regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON Semiconductor data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. ON Semiconductor does not convey any license under its patent rights nor the right s of others. ON Semiconductor products are not designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. PUBLICATION ORDERING INFORMATION N. American Technical Support: 800−282−9855 Toll Free USA/Canada Europe, Middle East and Africa Technical Support: Phone: 421 33 790 2910 Japan Customer Focus Center Phone: 81−3−5817−1050 www.onsemi.com LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor 19521 E. 32nd Pkwy, Aurora, Colorado 80011 USA Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada Fax: 303−675−2176 or 800−344−3867 Toll Free USA/Canada Email: orderlit@onsemi.com ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative Semiconductor Components Industries, LLC