3-Phase Full-Wave Sine-Wave PWM Brushless Motor Controller
Description
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 diagram may be omitted or simplified for explanatory purposes.
2
2012-10-22
Free Datasheet http://www.
Datasheet4U.
com
TB6556FG
Pin Description
Pin No.
21 20 19 18 Symbol HU HV HW CW/CCW Description Positional signal input pin U Positional signal input pin V Positional signal input pin W Rotation direction signal input pin Reset-signal-input pin Voltage command signal Gain setting L: Forward H: Reverse L: Reset (output is non-active) operation/halt operation, also used for gate protection, buil...
Similar Datasheet
