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參數資料
| 型號： | TB62201AF |
| 元件分類： | 運動控制電子 |
| 英文描述： | STEPPER MOTOR CONTROLLER, 1.5 A, PDSO38 |
| 封裝： | 0.450 INCH, 0.65 MM PITCH, HEAT SINK, PLASTIC, SOP-36/38 |
| 文件頁數： | 18/89頁 |
| 文件大?。?/td> | 1396K |
| 代理商： | TB62201AF |
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TB62201AF
2005-04-04
25
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.
(1) Power consumed by the Power Transistor (calculated with Ron
= 0.6 )
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 × Iout^2 × Ron ......................................(1)
The average power dissipation for output under 4bit 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 = 0.6 (@ 1.0 A)
Iout (Peak: max) = 1.0 A
VM = 24 V
VDD = 5 V
P (out) = 2 (Tr) × 1.0 (A)^2 × 0.60 () ................................................................. (2)
=1.20 (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 mA (typ.): /unit
I (IM3) = 12.5 mA (typ.): operation/unit
I (IM1) = 6.0 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) × 0.002 (A) + 24 (V) × 0.0125 (A) .................................... (3)
= 0.31 (W)
(3) Thus, power dissipation for 1 unit (P) is determined as follows by (2) and (3) above.
P = P (out) + P (Logic & IM) = 1.51 (W)
Power dissipation for 1 unit at standby is determined as follows:
P (standby) = 24 (V) × 0.006 (A) + 5 (V) × 0.002 (A)
= 0.154 (W)
When one motor driving = 100 %, power dissipation is determined as follows:
P (all) = 1.51 (W) + 1.664 (W) = 1.66 (W)
For thermal design on the board, evaluate by mounting the IC.
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| TB62754AFNG | SWITCHING REGULATOR, PDSO20 |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TB62201AFG | 制造商:Toshiba 功能描述:Stepper Motor Driver 5V 38-Pin (36+2Tab) HSOP 制造商:Toshiba 功能描述:Stepper Motor Driver 5V 38-Pin (36+2Tab) HSOP Cut Tape |
| TB62201AFG(EL) | 功能描述:馬達/運動/點火控制器和驅動器 Combination Motor Driver RoHS:否 制造商:STMicroelectronics 產品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| TB62202AFG | 制造商:Toshiba America Electronic Components 功能描述: |
| TB62202AFG(EL) | 功能描述:馬達/運動/點火控制器和驅動器 Combination Motor Driver RoHS:否 制造商:STMicroelectronics 產品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| TB62206FG | 制造商:Toshiba America Electronic Components 功能描述:2-Phase Stepping Motor Driver 5V 22-Pin(20+2Tab) HSOP |
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