TB6551FG/FAG
TOSHIBA Bi-CMOS Integrated Circuit Silicon Monolithic
TB6551FG, TB6551FAG
3-Phase Full-Wave Sine-Wave PWM ...
TB6551FG/FAG
TOSHIBA Bi-CMOS Integrated Circuit Silicon Monolithic
TB6551FG, TB6551FAG
3-Phase Full-Wave Sine-Wave PWM Brushless Motor Controller
The TB6551FG/FAG is designed for motor fan applications for three-phase brushless DC (BLDC) motors.
TB6551FG
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) Built-in dead time function (setting 2.6 μs or 3.8 μs) Bootstrap circuit compliant Over-current protection signal input pin Built-in
regulator (Vref = 5 V (typ.), 30 mA (max)) Operating supply voltage range: VCC = 6 V to 10 V
TB6551FAG
Weight: SSOP24-P-300-1.00 : 0.33 g (typ.) SSOP24-P-300-1.00B : 0.28 g (typ.)
1
2012-09-28
Free Datasheet http://www.datasheet4u.net/
TB6551FG/FAG
Block Diagram
LA 23 Xin 14 Xout 15 HU 21 HV 20 HW 19 Ve 22 VCC 1 P-GND 3 S-GND 13 Vrefout 24 Power-on reset RES 11 Idc 3 CW/CCW 18 FG 17 REV 16 ST/SP Protection CW/CCW & ERR reset GB FG Rotating direction Comparator PWM HU HV HW 120°turn-on matrix
Regulator Internal Phase reference matching voltage Position detector Counter Output waveform generator Data select System clock generator 5-bit AD 4 bits 6-bit triangular wave generator Phase U Phase V Phase W Comparator 9 U Comparator Comparator Switching 120°/180° and gate block protection on/off 6 X Setting dead time 8 V 5 Y 7 W 4 Z
10 Td
120°/180° Charger
12 OS
2
2012-09-28
Free Datasheet http://www.datasheet4u.net/
TB...
