OB3332BPCPA-J

OB3332Bx Single Winding, High PF Non-Isolated dimmable LED driver GENERAL DESCRIPTION FEATURES OB3332Bx is a TRIAC dimmable high power factor, highly integrated buck/buck-boost regulator with advanced features to provide high efficiency control and high precision constant current output for dimmable LED lighting applications. The proprietary CC control scheme is used to provide features of insensitivity to inductance and line voltage. Without external large compensation capacitor, the system can achieve high power factor with proprietary PFC control scheme. OB3332Bx offers comprehensive protection coverage with auto-recovery features including LED open loop protection, LED short circuit protection, cycle-by-cycle current limiting, built-in leading edge blanking, VDD under voltage lockout (UVLO), thermal foldback etc. OB3332Bx is offered in SOP-8 package.               Excellent TRIAC dimming performance Low system cost and high efficiency High PF（PF>0.9）@175~264Vac input Support buck/buck-boost topology High precision constant current regulation at universal AC input Quasi-Resonant operation Thermal foldback function for LED output current control Insensitivity to inductance and line voltage variation LED short circuit protection LED open loop protection Cycle-by-cycle current limiting Built-in leading edge blanking (LEB) VDD under voltage lockout with hysteresis Over temperature protection (OTP) APPLICATIONS  Dimmable LED lighting TYPICAL APPLICATION Figure 1 Buck Application circuit Figure 2 Buck-Boost Application circuit ©On-Bright Electronics Confidential -1- Datasheet OB_DOC_DS_3332BxA4 OB3332Bx Single Winding, High PF Non-Isolated dimmable LED driver GENERAL INFORMATION Pin Configuration The pin map is shown as below. FB 1 8 DRAIN GND 2 7 DRAIN 6 DRAIN VDD CS 3 4 5 Absolute Maximum Ratings Parameter VDD Voltage CS Input Voltage FB Input Voltage OB3332BPCP-J DRAIN OB3332BMCP-H Voltage OB3332BNCP-H OB3332BRCP-H Min/Max Operating Junction Temperature TJ Operating Ambient Temperature TA Min/Max Storage Temperature Tstg Lead Temperature (Soldering, 10secs) DRAIN Ordering Information Part Number Description 8 Pin SOP, Halogen-free in OB3332BMCP-H Tube 8 Pin SOP , Halogen-free in OB3332BMCPA-H T&R 8 Pin SOP, Halogen-free in OB3332BNCP-H Tube 8 Pin SOP , Halogen-free in OB3332BNCPA-H T&R 8 Pin SOP, Halogen-free in OB3332BPCP-J Tube 8 Pin SOP , Halogen-free in OB3332BPCPA-J T&R 8 Pin SOP, Halogen-free in OB3332BRCP-H Tube 8 Pin SOP , Halogen-free in OB3332BRCPA-H T&R Note: All Devices are offered in Halogen-free Package if Value -0.3 to 20V -0.3 to 7V -0.3 to 7V -0.3 to 500V -0.3 to 650V -40 to 150 ℃ -40 to 85 ℃ -55 to 150 ℃ 260 ℃ Note: Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute maximum-rated conditions for extended periods may affect device reliability. Output Power Table not otherwise noted. Product Condition 175Vac~264Vac Input OB3332BMCP-H Io≤80mA 10W OB3332BNCP-H Io≤105mA 12W OB3332BPCP-J Io≤180mA 17.6W OB3332BRCP-H Io≤220mA 18.5W Note: Maximum practical continuous power in an open frame design with sufficient drain pattern as a heat sink, at 50℃ ambient and 60℃ temperature rise. Higher output power is possible with extra added heat sink 、 air circulation and decrease output current to reduce thermal resistance. Recommended Operating Condition Symbol Parameter Range VDD VDD Supply Voltage 8 to 16V Package Dissipation Rating Package RθJA (℃/W) SOP8 90 ©On-Bright Electronics Confidential -2- Datasheet OB_DOC_DS_3332BxA4 OB3332Bx Single Winding, High PF Non-Isolated dimmable LED driver Marking Information YWWZZZ OB3332MCP YWWZZZ OB3332NCP B B s s Y: Year Code Y: Year Code WW: Week Code (01-52) WW: Week Code (01-52) ZZZ:Lot Code ZZZ:Lot Code C: SOP8 C: SOP8 P:Halogen-free Package P:Halogen-free Package B:Character Code B:Character Code S: Internal Code(Optional) S: Internal Code(Optional) YWWZZZ OB3332PCP YWWZZZ OB3332RCP B B s s Y: Year Code Y: Year Code WW: Week Code (01-52) WW: Week Code (01-52) ZZZ:Lot Code ZZZ:Lot Code C: SOP8 C: SOP8 P:Halogen-free Package P:Halogen-free Package B:Character Code B:Character Code S: Internal Code(Optional) S: Internal Code(Optional) TERMINAL ASSIGNMENTS Pin Num Pin Name I/O Description 1 FB I/O The voltage feedback from output. Connected to resistor divider from output voltage. 2 GND P Power Ground. 3 VDD P Power supply input. 4 CS I/O Current sensing terminal. 5,6,7,8 DRAIN I/O Drain of power MOSFET. ©On-Bright Electronics Confidential -3- Datasheet OB_DOC_DS_3332BxA4