Datasheet AC/DC Drivers AC/DC controller IC for LED lighting BD521GOFJ General Description Features BD521GOFJ is an AC/DC converter for LED lighting. Quasi-resonant Switching Mode + PFC Circuit This IC can be applied to quasi-resonant typed Non-isolated Application high-side LED driver application, and the high current Maximum Frequency 300kHz precision and low EMI noise can be achieved. VCC Pin: Under Voltage Protection Moreover, owing to the built-in PFC (Power Factor VCC Pin: Over Voltage Protection (Latch) Correction) converter, the harmonic is improved. CS Pin: Leading-Edge-Blanking Function By choosing the external MOSFET, the LED drivers CS Pin: OPEN Protection Function for from low power to high power can be achieved. So LED Over Current Detection Function that, it can be widely used on from the low power lighting such as spotlight to the high power lighting such as base light. Package W(Typ) x D(Typ) x H(Max) Owing to the external current setting resistance, a SOP-J8 4.90mm x 6.00mm x 1.65mm power supply design with a high degree of freedom can be achieved. Key Specifications Operating Power Supply Voltage Range: VCC 8.9V to 25.0V Operating Current: Normal Operation: 400 A (Typ) Operating Temperature Range: - 40C to +105C Application LED Bulb, Down-light, Tube Light etc. Electrical Machineries for LED Lighting Typical Application Circuit F1 DA1 L1 Vin R1 Q2 DZ2 Q1 R3 DOUT CB CIN C1 ROUT D2 U1 DZ1 R2 R4 RS C3 C2 L2 LED+ D1 RO CO LED- Figure 1. Application Circuit Product structure : Silicon monolithic integrated circuit This product has no designed protection against radioactive rays .www .rohm.com TSZ02201-0F4F0C300100-1-2 2016 ROHM Co., Ltd. All rights reserved. 1/16 TSZ2211114001 20.Apr.2016 Rev.002 CS OUT COMP CHG VCC GND LPF ZTBD521GOFJ Absolute Maximum Ratings (Ta=25C) Item Symbol Rating Unit Condition Input Voltage Range 1 Vmax1 -0.3 to 30 V VCC, CHG Input Voltage Range 2 Vmax2 -0.3 to 6.5 V CS, COMP, LPF, ZT Input Voltage Range 3 Vmax3 -0.3 to 15.5 V OUT o Operating Temperature Range Topr -40 to +105 C o Maximum Junction Temperature Tjmax 150 C o Storage Temperature Range Tstg -55 to+150 C Caution: Operating the IC over the absolute maximum ratings may damage the IC. The damage can either be a short circuit between pins or an open circuit between pins and the internal circuitry. Therefore, it is important to consider circuit protection measures, such as adding a fuse, in case the IC is operated over the absolute maximum ratings. (Note 1) Thermal Resistance Thermal Resistance (Typ) Parameter Symbol Unit (Note 3) (Note 4) 1s 2s2p SOP-J8 Junction to Ambient 149.3 76.9 C/W JA (Note 2) Junction to Top Characterization Parameter 18 11 C/W JT (Note 1)Based on JESD51-2A(Still-Air) (Note 2)The thermal characterization parameter to report the difference between junction temperature and the temperature at the top center of the outside surface of the component package. (Note 3)Using a PCB board based on JESD51-3. (Note 4)Using a PCB board based on JESD51-7. Layer Number of Material Board Size Measurement Board Single FR-4 114.3mm x 76.2mm x 1.57mmt Top Copper Pattern Thickness Footprints and Traces 70 m Layer Number of Material Board Size Measurement Board 4 Layers FR-4 114.3mm x 76.2mm x 1.6mmt Top 2 Internal Layers Bottom Copper Pattern Thickness Copper Pattern Thickness Copper Pattern Thickness Footprints and Traces 70 m 74.2mm x 74.2mm 35 m 74.2mm x 74.2mm 70 m Recommended Operating Condition (Ta=25C) Item Symbol Range Unit Condition Input Voltage Range VCC 8.9 to 25.0 V VCC Voltage www.rohm.com TSZ02201-0F4F0C300100-1-2 2016 ROHM Co., Ltd. All rights reserved. 2/16 20.Apr.2016 Rev.002 TSZ2211115001