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参数资料
| 型号： | TB6556F |
| 元件分类： | 运动控制电子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, PDSO30 |
| 封装： | 0.375 INCH, 1 MM PITCH, PLASTIC, SSOP-30 |
| 文件页数： | 3/22页 |
| 文件大小： | 520K |
| 代理商： | TB6556F |
TB6556F/FG
2006-03-02
11
Functional Description
1.
Basic operation
The motor is driven by the square-wave turn-on signal based on a positional signal. When the positional
signal reaches number of rotations f
= 5 Hz or higher, the rotor position is estimated according to the
positional signal and a modulation wave is generated. The modulation wave and the triangular wave are
compared; then the sine-wave PWM signal is generated and the motor is driven.
From start to 5 Hz: When driven by square wave (120° turn-on) f
= fosc/(212 × 32 × 6)
5 Hz~: When driven by sine-wave PWM (180° turn-on);when fosc = 4 MHz, approx. 5 Hz
2.
Select drive function
This function can select drive mode.
SS pin
HIGH or OPEN = Sine-wave PWM drive (180
° turn-on mode)
LOW = Square-wave drive (120
° turn-on mode)
Note: If the position sensing signal is f = 5 Hz or lower, the driver is 120
° turn-on mode even when SS =
HIGH.
3.
Ve voltage command signal function and function to stabilize bootstrap voltage
(1)
When the voltage command signal is input at Ve <= 1.0 V:
Turns off output (gate protection)
(2)
When the voltage command signal is input at 1.0 V
< Ve <= 2.1 V:
Turns on the lower transistor at the regular (carrier) cycle. (ON duty is approx. 8%.)
(3)
When the voltage command signal is input at Ve
> 2.1 V:
During sin-wave drive, outputs drive signal as it is. During square-drive, forcibly turns on the lower
transistor at regular (carrier) cycle. (ON duty is approx. 8%)
Note: At startup, turn the lower transistor on for a fixed time with 1.0 V
< Ve <= 2.1 V to charge the upper
transistor gate power supply.
4.
Dead time function: upper/lower transistor output off-time
When the motor is driven by sine-wave PWM, dead time is digitally generated in the IC to prevent a
short circuit caused by the simultaneous turning on of upper and lower external power devices. When a
square wave is generated in full-duty cycle mode, the dead time function is turned on to prevent a short
circuit.
Td Pin
Internal Counter
TOFF
HIGH or OPEN
8/fosc
1.9
s
LOW
16/fosc
3.8
s
TOFF values above are obtained when fosc
= 4.19 MHz.
fosc = reference clock (crystal oscillation)
(1)
(2)
(3)
100%
2.1 V
1.0 V
5.4 V
Ve
PWM Duty
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TB6556FG | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:3-Phase Full-Wave Sine-Wave PWM Brushless Motor Controller |
| TB6556FG(EL,DRY) | 功能描述:马达/运动/点火控制器和驱动器 BRUSHLESS DC MOTOR CONTROLLER 3-PHASE RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| TB6556FG(O,EL,DRY) | 功能描述:马达/运动/点火控制器和驱动器 3-Phase Full-Wave 12V Vcc=6V to 10V RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| TB6556FG(O8,EL,DRY | 功能描述:马达/运动/点火控制器和驱动器 3-phase PWM 252Hz 5V 30mA 6V to 10V RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| TB6556FGELDRY | 功能描述:马达/运动/点火控制器和驱动器 Brushless DC Motor Controller RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
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