TB6556FG

TB6556FG TOSHIBA Bi-CMOS Integrated Circuit Silicon Monolithic TB6556FG 3-Phase Full-Wave Sine-Wave PWM Brushless Motor Controller The TB6556FG is designed for motor fan applications for three-phase brushless DC (BLDC) motors. Features        Sine-wave PWM control Built-in triangular-wave generator (Carrier cycle = fOSC/252 (Hz)) Built-in lead angle control function (0° to 58° in 32 steps) External setting/automatic internal setting Built-in dead time function (setting 1.9 μs or 3.8 μs) Overcurrent protection signal input pin Built-in regulator (Vrefout = 5 V (typ.), 30 mA (max)) Operating supply voltage range: VCC = 6 V to 10 V Weight: 0.63 g (typ.) 1 2012-10-22 Free Datasheet http://www.Datasheet4U.com TB6556FG Block Diagram Gin 24 Gout 25 PH 26 LPF 27 LA 28 Upper limit Filter Lower limit Xin 14 Xout 15 HU 21 HV 20 HW 19 Ve 2 VCC 1 Regulator Internal Phase reference matching voltage Position detector Counter Output waveform generator Data select Phase V Comparator Setting dead time System clock generator 5-bit AD Phase U Comparator 9 U 6 X 8 V 5 Y 7 W 120°/180° GND 13 Vrefout 23 Power-on reset RES 11 Idc 3 CW/CCW 18 SS 22 FG 17 REV 16 ST/SP CW/CCW Protection ERR & GB reset FG Rotating direction Comparator PWM HU HV HW Charger Switching 120°/180° and gate block protection on/off 4 Z 6-bit triangular wave generator UL 30 LL 29 Peak hold + 10 Td Phase W Comparator 12 OS 120°turn-on matrix Some of the functional blocks, circuits, or constants in the block di...