TB6575FNG(O,C8,EL) Toshiba

TB6575FNG TOSHIBA CMOS Integrated Circuit Silicon Monolithic TB6575FNG PWM Sensorless Controller for 3-Phase Full-Wave BLDC Motors The TB6575FNG provides sensorless commutation and PWM current control for 3-phase full-wave BLDC motors. It controls rotation speed by changing a PWM duty cycle by analog voltage. Features 3-phase full-wave sensorless drive PWM chopper drive PWM duty cycle control by analog input 20-mA current sink capability on PWM output pins Weight: 0.14 g (typ.) Overcurrent protection Forward/reverse rotation Lead angle control (7.5 and 15) Overlap commutation Rotation speed sensing signal DC excitation mode to improve startup characteristic DC excitation time and forced commutation time for startup operation can be changed. 16 17 18 Forced commutation frequency can be selected. (f /(6 2 ), f /(6 2 ), f /(6 2 ) ) XT XT XT Output polarity switching (P-channel + N-channel, N-channel + N-channel) TB6575FNG is a Pb-free product. The following conditions apply to solderability: *Solderability 1. Use of Sn-37Pb solder bath *solder bath temperature = 230C *dipping time = 5 seconds *number of times = once *use of R-type flux 2. Use of Sn-3.0Ag-0.5Cu solder bath *solder bath temperature = 245C *dipping time = 5 seconds *number of times = once *use of R-type flux 1 2008-9-11 TB6575FNG Block Diagram Duty V OS FG OUT DD 19 21 3 7 Startup time 6-bit AD PWM V 5 SP 13 OUT UP setting converter control 15 OUT VP SC 2 PWM 17 OUT WP START 8 generator DC excitation 14 OUT UN control circuit IP 9 16 OUT VN Forced F 24 commutation Timing ST 18 OUT WN frequency setting control Maximum commutation F 4 MAX frequency setting Overcurrent 22 OC protection Lead angle LA 12 setting CW CCW 6 SEL LAP 20 Clock Position 23 WAVE generation recognition 10 11 1 X X GND Tout Tin Pin Assignment GND 1 24 F ST SC 2 23 WAVE OS 3 22 OC F 4 21 V MAX DD V 5 20 SEL LAP SP CW CCW 6 19 Duty FG OUT 7 18 OUT WN START 8 17 OUT WP IP 9 16 OUT VN 10 15 OUT VP X Tout X 11 14 OUT UN Tin LA 12 13 OUT UP 2 2008-9-11