TB6819AFG(O,EL) Toshiba

TB6819AFG TOSHIBA BiCD Integrated Circuit Silicon Monolithic TB6819AFG Critical Conduction Mode (CRM) PFC Controller IC Features Operating voltage range: 10.0 to 25 V Startup voltage: 12.0 V (typ.) Maximum drive current: 1.0 A Variety of protection circuits DC Input overvoltage protection (OVP-1) PFC Output overvoltage protection (OVP-2) SOP8-P-225-1.27 Under voltage lockout (UVLO) P-SOP8-0406-1.27-001 Feedback-loop open detector (FOD) Brown out protection (BOP) Weight: 0.1 g (typ.) Package: SOP8 Block Diagram POUT MULT GND ZCD IS Vcc 5 6 3 4 8 7 - + Q S Clamp Timer2 Timer1 + R QN COMP - MULT 2 - + LLP - OVP-1 BIAS UVLO + E-Amp. Brown FB IN out Internal circuit 1 + - FOD - + OVP-2 COMP 1 2015-05-15 TB6819AFG Absolute Maximum Ratings (Ta = 25C) Characteristics Symbol Rating Unit Supply voltage Vccmax 25.0 V Maximum input voltage on all pins Vinmax (Note 3) V Minimum input voltage on all pins Vinmin GND - 0.3 V Power dissipation 1 (Note 1) PDmax 650 mW Operating ambient temperature (Note 2) Topr -40 to 90 C Junction temperature Tj 150 C Storage temperature Tstg -55 to 150 C Note 1: The rated power dissipation should be decreased by 5.2 mW/C at above Ta = 25C ambient. Note 2: Functional operation is guaranteed over the specified temperature range. Note 3: See the table below Maximum Input Voltage Pin No. Pin Name Unit (Rating) 1 FB IN 5.0 2 COMP 5.0 3 MULT 5.0 4 IS 5.0 V 5 ZCD 7.0 6 GND 7 POUT Do not apply any voltage. 8 Vcc 25.0 Pin Assignments 1: FB IN 1 8 2: COMP 3: MULT 7 2 4: IS 5: ZCD 6 3 6: GND 5 4 7: POUT 8: Vcc 2 2015-05-15