SY5800 Single Stage Flyback And PFC Controller With Primary Side Control For LED Lighting Preliminary datasheet General Description Features The SY5800 is a single stage Flyback and PFC controller that targets at LED lighting applications. It receives the rectified AC input voltage up to 400V, and drives the Flyback converter in a quasi-resonant mode for high efficiency unified power factor applications. • Primary side control eliminate the opto-coupler. • Internal high current MOSFET driver: 1A sourcing and 2A sinking • Low quiescent current at start up mode: 10uA typical • 16V rising UVLO with 9V hysteresis • Valley turn-on of the primary MOSFET to achieve low switching loss • 0.5V max sense voltage on the primary side to minimize the conduction loss. • Reliable short LED and Open LED protection • Good power factor(>0.90) with single-stage conversion. • Compact package: MSOP10 and SO8 Ordering Information SY5800 □(□□)□ Temperature Code Package Code Optional Spec Code Temperature Range: -40°C to 85°C Note Ordering Number Package type SY5800FBC MSOP10 ---SY5800FAC SO8 ---- Applications • LED Lighting • Down light • Lamp light Typical Applications Np L1 F1 D2 T1 V ac DB1 Z1 C 4 Ns C1 R1 CX1 AC input CX2 L2 R3 D1 V cc R T1 N aux C2 R4 M S O P 10 1 10 COMP NC ZCS C3 R2 5 GND ISEN SGND TM EN VIN DRV R7 R6 C Y1 Q1 6 R5 Rs Figure 1. Schematic Diagram MSOP10 SY5800 Rev. 0.2 Silergy Corp. Confidential-Prepared for Customer Use Only 1 SY5800 Figure 2. Schematic Diagram SO8 SY5800 Rev. 0.2 Silergy Corp. Confidential-Prepared for Customer Use Only 2 SY5800 Pinout (top view) (MSOP10) (SO8) Top Mark: ADRxyz for SY5800FBC(device code: ADR, x=year code, y=week code, z= lot number code) AEAxyz for SY5800FAC(device code: AEA, x=year code, y=week code, z= lot number code) Pin Name Pin number SO8 Pin number MSOP10 VIN 6 7 GND 4 4 ZCS 2 3 ISEN 3 5 DRV 5 6 COMP 1 1 NC TM SGND ---8 ---- 2 9 10 EN 7 8 Pin Description Bypass this pin to ground with 4.7uF ceramic capacitor. There is an internal 18V shunt regulator to prevent this pin voltage from exceeding 18V. This pin also serves the function of the open LED feedback detection. If the voltage of the pin exceeds 18V, the open LED is flagged. Ground pin Inductor current Zero-crossing Detection pin. The input is a voltage divided from the transformer overwinding voltage. When the pin voltage is higher than 1.5V for more than 700nS, the over-voltage protection is enabled. Current sense input pin. Connect this pin to the source of the primary switch. Connect the sense resistor Rs from the source of the primary switch to GND. The maximum Switch current is: Ipri,max=0.5V/Rs Gate drive pin. Connect this pin to the gate of primary MOSFET. Current compensation pin. Connect a capacitor around 680nF network between this pin and ground to stabilize the control loop. No connection. Connected to ground. Signal ground of the chip Enabled control pin. If the voltage of this pin is smaller than 0.3V, this chip is disabled. If the voltage on this pin is higher than 1.5V, the chip is enabled. If not used, connect this pin to VIN pin with a resistor having a recommending value of 470kΩ. Absolute Maximum Ratings (Note 1) VIN, DRV -------------------------------- ------------------------------------------------------------------------ 18V EN, ZCS ------- ---------------------------------------------------------------------------------------------------- VIN+0.3V ISEN, COMP, TM------------------------------------------------------------------------------------------------- 3.6V Power Dissipation, @ TA = 25°C MSOP10/SO8--------------------------------------------------------------0.8W/1.1W Package Thermal Resistance (Note 2) Junction Temperature Range ------------------------------------------------------------------------------------ 125°C Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------------------ 260°C Storage Temperature Range ------------------------------------------------------------------------------------ -65°C to 150°C SY5800 Rev. 0.2 Silergy Corp. Confidential-Prepared for Customer Use Only 3 SY5800 Recommended Operating Conditions (Note 3) VIN, DRV ------------------------------------ -------------------------------------------------------------------- 16V EN, ZCS ------- ----------------------------------------------------------------------------------------------------VIN+0.3V ISEN, COMP, TM------------------------------------------------------------------------------------------------3.3V Junction Temperature Range ----------------------------------------------------------------------------------- -40°C to 125°C Ambient Temperature Range ----------------------------------------------------------------------------------- -40°C to 85°C Block Diagram Figure3. Simplified Block Diagram SY5800 Rev. 0.2 Silergy Corp. Confidential-Prepared for Customer Use Only 4 SY5800 Electrical Characteristics (VIN = 12V (Note 3), TA = 25°C unless otherwise specified) Parameter Input Voltage Range Start up Current Operating Current Primary Current Sense Voltage Gate Driver Output peak current VIN Rising UVLO Threshold VIN UVLO Hysteresis VIN Shunt Regulator Voltage Maximum frequency Min ON Time Thermal Shutdown Temperature Maximum on time Maximum off time Burst point Zero crossing detection Over voltage threshold Internal Reference Voltage EN Pin Function Symbol VIN ISTART IIN Test Conditions VSEN Peak Current Limit Voltage Min 7 Typ Max 18 10 10 ISOURCE ISINK 0.5 V 1 2 A A VUVLO,UP 17 VUVLO,HYS ON Leading Edge Blanking Time V 16 17 240 100 400 KHz ns 150 C 27 33 0.3 0.38 us us V V mA mA V V V V TSD TON,MAX TOFF,MAX VCOMPH VCOMPL ISINK ISOURCE VOVP VREF ENHIGH ENLOW V 9 VCC,REG fMAX TON,MIN Unit V µA mA Vcomp=1.5V Goes to burst mode Out burst mode 18 1 1 At ZCS pin VEN>1.5V Enable on Enable off 1.5 0.3 1.5 0.3 V Note 1: Stresses listed as the above “Absolute Maximum Ratings” may cause permanent damage to the device. These are for stress ratings. Functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may remain possibility to affect device reliability. Note 2: ſJA is measured in the natural convection at TA = 25°C on a low effective single layer thermal conductivity test board of JEDEC 51-3 thermal measurement standard. Test condition: Device mounted on 2” x 2” FR-4 substrate PCB, 2oz copper, with minimum recommended pad on top layer and thermal vias to bottom layer ground plane. Note 3: Turn VIN pin voltage gradually higher than UVLO up voltage then turn down to 12V. SY5800 Rev. 0.2 Silergy Corp. Confidential-Prepared for Customer Use Only 5 SY5800 MSOP10 Package outline & PCB layout 0.500 5.300 4.70-5.10 2.85-3.10 1.350 0.300 0.18-0.28 Recommended Pad Layout Notes: 0.00-0.15 0.75-0.95 0.10-0.25 0.40-0.80 0.25 base 2.85-3.10 0.50 (TYP) All dimension in MM All dimension do not include mold flash & metal burr SY5800 Rev. 0.2 Silergy Corp. Confidential-Prepared for Customer Use Only 6 SY5800 5.40 3.80 - 4.00 1.27 TYP 5.80 - 6.20 6.10 1.55 SO8 Package Outline & PCB Layout Design 0.30 – 0.50 0.60 0.60 - 0.85 0.08 - 0.25 1.40 - 1.60 ° -8 4.80 - 5.00 0.25 base 0 45° 0.25 - 0.50 0.18 - 0.25 Recommended Pad Layout 1.27 (TYP) Notes: All dimensions are in millimeters. All dimensions don’t include mold flash & metal burr. SY5800 Rev. 0.2 Silergy Corp. Confidential-Prepared for Customer Use Only 7