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PDF TB6551FG Data sheet ( Hoja de datos )
| Número de pieza | TB6551FG | |
| Descripción | 3-Phase Full-Wave Sine-Wave PWM Brushless Motor Controller | |
| Fabricantes | Toshiba | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de TB6551FG (archivo pdf) en la parte inferior de esta página. Total 21 Páginas | ||
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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.
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
TB6551FG
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/
1 page  
Pin Description
Symbol
Input/Output Signal
Setting dead time input pin
L : 3.8 μs
H or Open: 2.6 μs
Digital
Td L : 0.8 V (max)
H: Vrefout − 1 V (min)
TB6551FG/FAG
Input/Output Internal Circuit
Vrefout Vrefout
1.2 kΩ
Output logic select signal
input pin
L: Active low
H: Active high
Digital
OS
L : 0.8 V (max)
H: Vrefout − 1 V (min)
Vrefout Vrefout
2.4 kΩ
Over-current protection
signal input pin
Analog
Idc
Gate block protected at 0.5 V or higher
(released at carrier cycle)
VCC
240 kΩ
Comparator
Clock signal input pin
Clock signal output pin
Xin
Operating range
2 MHz to 8 MHz (ceramic oscillation)
Xout
Vrefout
Vrefout
Xin Xout
360 kΩ
VCC
VCC VCC
Reference voltage signal
output pin
Vrefout 5 ± 0.5 V (max 30 mA)
5 2012-09-28
Free Datasheet http://www.datasheet4u.net/
5 Page 
Operation Flow
TB6551FG/FAG
Positional signal
(Hall IC)
Position
detector
Counter
Phase matching
Phase U
Phase V
Phase Sine-wave pattern
W (modulation signal)
Comparator
Voltage
instruction
Oscillator
System clock
generator
Triangular wave
(carrier frequency)
U
X
V
Y
W
Z
(Note)
92%
Driven by square wave
0.2 V (typ.)
Voltage instruction Ve
4.6 V
Note: Output ON time is decreased by the dead time
(carrier frequency × 92% − Td × 2).
100%
Driven by sine wave
0 0.2 V (typ.)
Voltage instruction Ve
5 V (Vrefout)
11
2012-09-28
Free Datasheet http://www.datasheet4u.net/
11 Page | ||
| Páginas | Total 21 Páginas | |
| PDF Descargar | [ Datasheet TB6551FG.PDF ] | |
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