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參數(shù)資料
| 型號(hào)： | TB62206FG |
| 廠商： | Toshiba Corporation |
| 英文描述： | BiCD PWM 2−Phase Bipolar Stepping Motor Driver |
| 文件頁數(shù)： | 14/27頁 |
| 文件大?。?/td> | 369K |
| 代理商： | TB62206FG |
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TB62206FG
2005-03-02
14
How to Calculate Set Current
This IC drives the motor, controlling the PWM constant current in reference to the frequency of CR
oscillator.
At that time, the maximum current value (set current value) can be determined by setting the sensing
resistor (R
RS
) and reference voltage (V
ref
).
100(%)
x
)
(
RS
R
71%)
100,
=
(Torque
Torque
x
(V)
ref
V
x
5.0
1
(max)
OUT
I
=
1/5.0 is V
ref
(gain): V
ref
attenuation ratio. (for the specifications, see the electrical characteristics.)
For example, when applying V
ref
=
3 V and torque
=
100% to drive out I
OUT
of 0.8 A, R
RS
=
0.75
(0.5 W
or more) is required.
(for 1-2 phase excitation with 71% of torque, the peak current should be set to 100%).
How to Calculate the Chopping and OSC Frequencies
At constant current control, this IC chops frequency using the oscillation waveform (saw tooth waveform)
determined by external capacitor and resistor as a reference.
The TB62206FG requires an oscillation frequency of eight times the chopping frequency.
The oscillation frequency is calculated as follows:
C)
600
R
(C
0.523
1
f
CR
×
+
×
×
=
For example, when C
osc
=
560 pF and R
osc
=
3.6 k
are connected, f
CR
=
813 kHz.
At this time, the chopping frequency f
chop
is calculated as follows:
f
chop
=
f
CR
/8
=
101
kHz
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TB62206FG(EL) | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 Stepping Motor Driver RoHS:否 制造商:STMicroelectronics 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| TB62206FG(O,EL) | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 2-Phase Bipolar IC 40V 1.8A POR RoHS:否 制造商:STMicroelectronics 產(chǎn)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(fēng)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(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 BiCD 2-Phase Bipolar 40V 1.8A TSD ISD RoHS:否 制造商:STMicroelectronics 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
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