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参数资料
| 型号： | TB6549HQ |
| 元件分类： | 运动控制电子 |
| 英文描述： | BRUSH DC MOTOR CONTROLLER, 4.5 A, PZFM25 |
| 封装： | 1MM PITCH, PLASTIC, HZIP-25 |
| 文件页数： | 21/22页 |
| 文件大小： | 372K |
| 代理商： | TB6549HQ |
TB6549FG/PG/HQ
2009-06-16
8
3. Internal Constant-Voltage (5 V) Circuit
This IC includes a 5 V power supply for control circuit.
A capacitor for prevention of oscillation should be connected to S-GND associated with the pin Vreg.
No other loads should be connected to pin Vreg.
This IC has a power monitoring function and turns the output OFF when Vreg goes down to 3.0 V
(design target value) or less. With a hysteresis of 0.3 V (design target value), the output are turned ON
when Vreg again reaches 3.3 V (design target value).
4. Charge Pump Circuit
This IC has a charge pump circuit for driving the gate for the upper power transistor in the output
circuit. A voltage of VCC + 5 V (typ.) is generated by connecting an external capacitor to this IC.
It takes about 2 ms to boost VcpA up VCC + 5 V (typ.) after the switching of the input signal from the
standby pin (while CcpA
= 0.22 μF, and CcpB and CcpC are connected through 0.01 μF).
The proper capacitance of the external capacitor varies depending on the VCC value. Thus, determine
the constant by referring to the following data. The value of the capacitor between CcpB and CcpC
should be such that, while the motor is being driven, the voltage on the CcpA pin will be kept constant,
typically at VCC + 5 V. (If a reduced VCC level causes the voltage on CcpA to start to fall, please adjust
this capacitance value accordingly.)
<External capacitor>
VCC
Between CcpB and CcpC Between CcpA and GND
10 V to 15 V
0.01
μF to 0.047 μF
0.22
μF
15 V to 27 V
0.01
μF
0.22
μF
Reference oscillation is performed by using the internal capacitor.
VCC
Vreg
VCC
CcpC
VCC
CcpB
CcpA
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TB6549HQ(O) | 功能描述:马达/运动/点火控制器和驱动器 30V Bridge DRVR 3.5A 1.0 Ohm low RDS 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 |
| TB6549P | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:Full-Bridge Driver IC for DC Motors |
| TB6549PG | 功能描述:马达/运动/点火控制器和驱动器 Bridge Driver 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 |
| TB6549PG(O) | 功能描述:马达/运动/点火控制器和驱动器 30V PWR Supply 3.5A Full Bridge DRVR PWM 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 |
| TB6551F | 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 |
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