TB6818FG(O,EL) Toshiba

TB6818FG Toshiba BiCD Integrated Circuit Silicon Monolithic TB6818FG Power Factor Correction Control for CCM Features Operating voltage range : 8.4 V (MIN) to 26V (MAX) Starting voltage / current : 10.0 V (typ.) / 30 A (MAX) Pulse output mute function (Starting) Avoiding PFC transformer noise Maximum drive current : 1.0 A (typ.) Consumption current : 250 A (typ.) (Standby mode) SSOP16-P-225-1.00A AC instantaneously-stop detection Built-in protection circuits DC input OVP (OVP-1) PFC output OVP (OVP-2) UVLO Weight : 0.16 g (typ.) Feedback loop open detection (FOD) TSD Note: Carefully handle this IC by using an earth band, a conductive sheet, or an ionizer to reduce ESD. Pay attention to temperature and humidity to protect the IC from ESD. Note: Do not insert devices in the wrong orientation to prevent from destroying the IC. 1 2014-10-01 2014 TOSHIBA Corporation + - TB6818FG Block Diagram PFCOUT AC input RVSENSE VCC RISENSE PULSE VSENSE ISENSE ISENSE VCC OUT OCL S-GND P-GND IN IN OUT GND 15 14 13 12 7 10 9 8 11 Vcc STB + 2 SS BIAS UVLO - 16 OPP&SOFT START + TSD OVP- To inner circuit - MULT Vref VFB 5 - PWM CONT + E-Amp. 1.25V FB IN Slope 6 + compensation SS - FOD current - 0.25V S Q + Q R - N + SOFT START 0.625V S Q Q - R N OSC + OVP- COMP. 1.33V 1.31V 1 3 4 DELAY FREQ FREQ SET(R) SET(C) Fig. 1 Block Diagram Pin Assignment and Descriptions No. Descriptions Remarks Pin name 1 DELAY Pin for setting time of instantaneous-stop detection. Connect the capacitor to the GND. Pin for controlling ON and OFF for the IC. 2 STB 1.5 V (MAX) or less: Operation mode 3.5 V (MIN) or more: Standby mode FREQ. 3 Pin for setting oscillation frequency. Connect the resistance to the GND. SET (R) FREQ. 4 Pin for setting oscillation frequency. Connect the capacitor to the GND. SET(C) 5 VFB Outputting error amplifier. 6 FB IN Feed back pin of output voltage (inputting error amplifier). Pin for outputting reference voltage of internal IC. Connect the capacitor to the GND. Voltage of 5.0 7 Vref V (typ.) is outputted for this pin. Take care not to supply the current to the exterior from this pin. 8 P-GND GND pin of PULSE OUT drive circuit. PULSE 9 Output pin for switching pulse to the FET gate. OUT 10 VCC Supply voltage input pin for IC operation. Operation voltage range: 8.4 V (MIN) to 26 V (MAX). 11 OCL Pin for detecting over-current which flows to FET gate. ISENSE 12 Output pin of amplifier for detecting current waveform. OUT ISENSE 13 Input pin of amplifier for detecting current waveform. IN 14 S-GND GND pin of signal control circuit. VSENSE 15 Pin for detecting full-wave rectification voltage waveform of AC. IN OPP & Pin for setting soft start time in IC startup. Assign the resistance and the capacitor in parallel and 16 SOFT connect them to the GND. START 2 2014-10-01 + +