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參數資料
| 型號： | TB62214FTG |
| 元件分類： | 運動控制電子 |
| 英文描述： | STEPPER MOTOR CONTROLLER, 2 A, PQCC48 |
| 封裝： | 7 X 7 MM, 0.50 MM PITCH, ROHS COMPLIANT, PLASTIC, QFN-48 |
| 文件頁數： | 8/27頁 |
| 文件大小： | 687K |
| 代理商： | TB62214FTG |
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TB62214FG/FTG
2010-06-10
16
IC Power Consumption
The power consumed by the TB62214FG/FTG is approximately the sum of the following two: 1) the power
consumed by the output transistors, and 2) the power consumed by the digital logic and pre-drivers.
The power consumed by the output transistors is calculated, using the RON (D-S) value of 1.0Ω.
Whether in Charge, Fast Decay or Slow Decay mode, two of the four transistors comprising each H-bridge
contribute to its power consumption at a given time.
Thus the power consumed by each H-bridge is given by:
P (out)
= IOUT (A) × VDS (V) = 2 × IOUT2 × RON .........................................(1)
In two-phase excitation mode (in which two phases have a phase difference of 90°), the average
power consumption in the output transistors is calculated as follows:
RON = 1.0 Ω (@2.0 A), the sum of the high-side DMOS and low-side DMOS
IOUT (Peak) = 1.0 A
VM = 24 V
P (out)
= 2Hsw × 1.02 (A) × 1.0 (Ω) = 2.0 (W)................................................(2)
The power consumption in the IM domain is calculated separately for normal operation and
standby modes:
Normal operation mode: I (IM3) = 5.0 mA (typ.)
Standby mode: I (IM1) = 2.0 mA (typ.)
The current consumed in the digital logic portion of the TB62214FG/FTG is indicated as IMx. The
digital logic operates off a voltage regulator that is internally connected to the VM power supply. It
consists of the digital logic connected to VM (24 V) and the network affected by the switching of the
output transistors. The total power consumed by IMx can be estimated as:
P (IM) = 24 (V) × 0.005 (A) = 0.12 (W)...........................................................(3)
Hence, the total power consumption of the TB62214FG/FTG is:
P
= P (out) + P (IM) = 2.12 (W)
The standby power consumption is given by:
P (Standby)
+ P (out) = 24 (V) × 0.002 (A) = 0.048 (W)
Board design should be fully verified, taking thermal dissipation into consideration.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TB62215AFG(O,8,EL) | 功能描述:馬達/運動/點火控制器和驅動器 PWM Method Clock BiCD 40V 3.0A 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 |
| TB62215AFNG(OC8,EL | 功能描述:馬達/運動/點火控制器和驅動器 PWM Method Clock BiCD 40V 3.0A 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 |
| TB62215AFTG(O,8,EL | 功能描述:馬達/運動/點火控制器和驅動器 PWM Method Clock BiCD 40V 3.0A 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 |
| TB62215AHQ(O) | 功能描述:馬達/運動/點火控制器和驅動器 PWM Method Clock BiCD 40V 3.0A 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 |
| TB62215SM1 | 制造商:THOMAS & BETTS 功能描述: |
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