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参数资料
| 型号： | TB62214FTG |
| 元件分类： | 运动控制电子 |
| 英文描述： | STEPPER MOTOR CONTROLLER, 2 A, PQCC48 |
| 封装： | 7 X 7 MM, 0.50 MM PITCH, ROHS COMPLIANT, PLASTIC, QFN-48 |
| 文件页数： | 7/27页 |
| 文件大小： | 687K |
| 代理商： | TB62214FTG |
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TB62214FG/FTG
2010-06-10
15
Output Transistor Operating Modes
CLK
U1
U2
L1
L2
Charge
ON
OFF
ON
Slow-decay Mode
OFF
ON
Fast-decay Mode
OFF
ON
OFF
Note: This table shows an example of when the current flows as indicated by the arrows in the figures shown above.
If the current flows in the opposite direction, refer to the following table.
CLK
U1
U2
L1
L2
Charge
OFF
ON
OFF
Slow-decay Mode
OFF
ON
Fast-decay Mode
ON
OFF
ON
The TB62214FG/FGT switches among Charge, Slow-Decay and Fast-Decay modes automatically for
constant-current control.
The equivalent circuit diagrams may be simplified or some parts of them may be omitted for explanatory
purposes.
Calculation of the Predefined Output Current
For PWM constant-current control, the TB62214FG/FTG uses a clock generated by the CR oscillator. The peak
output current can be set via the current-sensing resistor (RRS) and the reference voltage (Vref), as follows:
IOUT = Vref/5 ÷ RS (Ω)
where, 1/5 is the Vref decay rate, Vref (GAIN). For the value of Vref (GAIN), see the Electrical Characteristics table.
For example, when Vref
= 3 V, to generate an output current (IOUT) of 0.8 A, RRS is calculated as:
RRS = (Vref /5) ÷ IOUT = (3/5) ÷ 0.8 = 0.75Ω. (≥ 0.5 W)
U1
L1
U2
L2
OFF
U1
L1
U2
L2
OFF
ON
Load
U1
L1
U2
L2
Load
PGND
RS Pin
RRS
VM
ON
Load
Charge Mode
A current flows into the motor
coil.
Slow-Decay Mode
A current circulates around the
motor coil and this device.
Fast-Decay Mode
The energy of the motor coil
is fed back to the power
ON
RS Pin
OFF
ON
OFF
VM
RRS
PGND
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TB62215AFG(O,8,EL) | 功能描述:马达/运动/点火控制器和驱动器 PWM Method Clock BiCD 40V 3.0A 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 |
| TB62215AFNG(OC8,EL | 功能描述:马达/运动/点火控制器和驱动器 PWM Method Clock BiCD 40V 3.0A 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 |
| TB62215AFTG(O,8,EL | 功能描述:马达/运动/点火控制器和驱动器 PWM Method Clock BiCD 40V 3.0A 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 |
| TB62215AHQ(O) | 功能描述:马达/运动/点火控制器和驱动器 PWM Method Clock BiCD 40V 3.0A 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 |
| TB62215SM1 | 制造商:THOMAS & BETTS 功能描述: |
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