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參數(shù)資料
| 型號： | TB62206FG |
| 廠商： | Toshiba Corporation |
| 英文描述： | BiCD PWM 2−Phase Bipolar Stepping Motor Driver |
| 文件頁數(shù)： | 15/27頁 |
| 文件大?。?/td> | 369K |
| 代理商： | TB62206FG |
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TB62206FG
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 R
ON
=
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 (T
r
)
×
I
OUT
(A)
×
V
DS
(V)
=
2
×
I
OUT2
×
R
ON
..............................(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.
R
ON
=
0.60
(
＠
1.0 A)
I
OUT
(Peak: max)
=
1.0 A
V
M
=
24 V
V
DD
=
5 V
P (out)
=
2 (T
r
)
×
1.0
2
(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 (I
M3
)
=
10.0 mA (typ.): operation/unit
I (I
M1
)
=
2.0 mA (typ.): stop/unit
The logic block is connected to V
DD
(5 V). IM (total of current consumed by the circuits connected to
V
M
and current consumed by output switching) is connected to V
M
(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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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TB62206FG(EL) | 功能描述:馬達/運動/點火控制器和驅動器 Stepping 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(O,EL) | 功能描述:馬達/運動/點火控制器和驅動器 2-Phase Bipolar IC 40V 1.8A POR 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 |
| 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 |
| TB62208FG(O,8,EL) | 功能描述:馬達/運動/點火控制器和驅動器 BiCD 2-Phase Bipolar 40V 1.8A TSD ISD 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 |
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