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参数资料
| 型号： | TB6560AFG |
| 元件分类： | 运动控制电子 |
| 英文描述： | STEPPER MOTOR CONTROLLER, 2.5 A, PQFP64 |
| 封装： | 10 X 10 MM, 0.50 MM PITCH, ROHS COMPLIANT, PLASTIC, QFP-64 |
| 文件页数： | 2/34页 |
| 文件大小： | 481K |
| 代理商： | TB6560AFG |
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TB6560AHQ/AFG
2009-07-10
10
5. Torque Settings (Current Value)
The ratio of the current necessary for actual operations to the predefined current adjusted by an external
resistor can be selected as follows. The Weak Excitation mode should be selected to set a torque extremely
low like when the motor is at a fixed position.
Since the TQ2 and TQ1 pins have pull-down resistors, the 100% torque setting is selected when TQ2 and
TQ1 are undriven.
TQ2
TQ1
Current Ratio
L
100%
L
H
75%
H
L
50%
H
20%
(Weak excitation)
6. Calculation of the Predefined Output Current
To perform a constant current drive, the reference current should be adjusted by an external resistor.
Charging stops when the NFA (NFB) voltage reaches 0.5 V (when the torque setting is 100%) so that a
current does not exceed the predefined level.
IOUT (A) = 0.5 (V) / RNF (Ω)
Example: To set the peak current to 1 A, the value of an external resistor should be 0.5
Ω.
7. Protect and MO Output Pins
These are open-drain outputs. An external pull-up resistor should be added to these pins when in use.
If the TSD circuit is activated, Protect is driven Low. When the IC enters the Initial state, MO is driven
Low.
Pin State
Protect
MO
Low
Thermal shutdown
Initial state
High-Z
Normal operation
Other than the initial state
Rest voltage of output terminal Mo and output terminal Protect reach 0.5 V (max) when IO is 1 mA.
8. Adjusting the External Capacitor Value (COSC) and Minimum Clock Pulse Width
(tW(CLK))
A triangular-wave is generated internally by CR oscillation. The capacitor is externally connected to the
OSC pin. The recommended capacitor value is between 100 pF and 1000 pF.
Approximate equation: fOSC = 1/{ COSC × 1.5 × (10/ COSC + 1)/66} × 1000 kHz
(Since this is an approximation formula, the calculation result may not be exactly equal to the actual
value.)
The approximate values are shown below.
The minimum clock pulse width (tW(CLK)) corresponds to the external capacitor (COSC ) as follows:
Capacitor
Oscillating Frequency
Minimum Clock Pulse Width tW(CLK) (Note 1)
1000 pF
44 kHz
90
μs (Note 2)
330 pF
130 kHz
30
μs
100 pF
400 kHz
10
μs (Note 2)
Note 1: When the frequency of an input clock signal is high, the COSC value should be small so that the duty cycle
of an input clock pulse does not become extremely high (should be around 50% or lower).
Note 2: Not tested in production.
Open-drain connection
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TB6560AFG(O) | 功能描述:马达/运动/点火控制器和驱动器 Stepping Motor Drivr 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 |
| TB6560AFG(O,8) | 功能描述:马达/运动/点火控制器和驱动器 PWM Chopper Type Bipolar 40 VDSS 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 |
| TB6560AFG(O8) | 制造商:Toshiba America Electronic Components 功能描述:IC MOTOR DRIVER STEPPER 3.5A HQFP-64 制造商:Toshiba America Electronic Components 功能描述:IC STEPPER MOTOR DRIVER 40V 3.5A |
| TB6560AFTG(O,8,EL) | 功能描述:马达/运动/点火控制器和驱动器 PWM Chopper Type Bipolar 40 VDSS 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 |
| TB6560AHQ | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:PWM Chopper-Type Bipolar Driver IC for Stepping Motor Control |
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