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| 型号： | TB62206F |
| 元件分类： | 运动控制电子 |
| 英文描述： | STEPPER MOTOR CONTROLLER, 1.8 A, PDSO22 |
| 封装： | 0.450 INCH, 1 MM PITCH, PLASTIC, HSOP-20/22 |
| 文件页数： | 7/27页 |
| 文件大小： | 368K |
| 代理商： | TB62206F |
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TB62206F
2005-03-02
15
IC Power Dissipation
IC power dissipation is classified into two: power consumed by transistors in the output block and power
consumed by the logic block and the charge pump circuit.
Power consumed by the Power Transistor (calculated with RON = 0.60 )
In Charge mode, Fast Decay mode, or Slow Decay mode, power is consumed by the upper and lower
transistors of the H bridges.
The following expression expresses the power consumed by the transistors of a H bridge.
P (out) = 2 (Tr) × IOUT (A) × VDS (V) = 2 × IOUT2 × RON ..............................(1)
The average power dissipation for output under 4-bit micro step operation (phase difference between
phases A and B is 90°) is determined by expression (1).
Thus, power dissipation for output per unit is determined as follows (2) under the conditions below.
RON = 0.60 (＠1.0 A)
IOUT (Peak: max) = 1.0 A
VM = 24 V
VDD = 5 V
P (out) = 2 (Tr) × 1.02 (A) × 0.60 × 2 () = 2.40 (W) ........................................(2)
Power consumed by the logic block and IM
The following standard values are used as power dissipation of the logic block and IM at operation.
I (LOGIC) = 2.5 mA (typ.):
I (IM3) = 10.0 mA (typ.): operation/unit
I (IM1) = 2.0 mA (typ.): stop/unit
The logic block is connected to VDD (5 V). IM (total of current consumed by the circuits connected to
VM and current consumed by output switching) is connected to VM (24 V). Power dissipation is
calculated as follows:
P (Logic&IM) = 5 (V) × 0.0025 (A) + 24 (V) × 0.010 (A) = 0.25 (W) ...............(3)
Thus, the total power dissipation (P) is
P = P (out) + P (Logic&IM) = 2.65 (W)
Power dissipation at standby is determined as follows:
P (standby) + P (out) = 24 (V) × 0.002 (A) + 5 (V) × 0.0025 (A) = 0.06 (W)
For thermal design on the board, evaluate by mounting the IC.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TB62206FG | 制造商:Toshiba America Electronic Components 功能描述:2-Phase Stepping Motor Driver 5V 22-Pin(20+2Tab) HSOP |
| TB62206FG(EL) | 功能描述:马达/运动/点火控制器和驱动器 Stepping Motor 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 |
| TB62206FG(O,EL) | 功能描述:马达/运动/点火控制器和驱动器 2-Phase Bipolar IC 40V 1.8A POR 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 |
| TB62207BFG(O,EL) | 制造商:Toshiba America Electronic Components 功能描述:2 STEPPER MOTOR DRIVE, 40V 1.5A HSOP36 制造商:Toshiba America Electronic Components 功能描述:2 Stepper Motor Drive 37V 2.5A TB62207BF |
| TB62207BFG(OEL) | 制造商:Toshiba America Electronic Components 功能描述:2 STEPPER MOTOR DRIVE 40V 1.5A HSOP36 |
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