參數(shù)資料
型號： TB62201AFG
廠商： Toshiba Corporation
英文描述： Dual-Stepping Motor Driver IC for OA Equipment Using PWM Chopper Type
中文描述： 雙辦公自動化設(shè)備步進(jìn)馬達(dá)驅(qū)動IC用PWM斬波型
文件頁數(shù)： 73/89頁
文件大小： 1423K
代理商： TB62201AFG
TB62201AFG
2005-04-04
73
Points for Control that Includes Current of 0%
In modes other than 2-Phase Excitation mode (from 1-2 Phase Excitation mode to 4W1-2 Phase Excitation mode),
when the current is controlled to 0%, the TB62201AFG’s output transistors are all turned off.
At the time, the coil's energy returns to the power supply through the parasitic diodes. If the same current is
applied several times and is within the rated current, then : the power consumed by the on-resistance when current
flows to the output MOS will be less than the power consumed when current is applied to the parasitic diodes.
Therefore, when controlling the current, rather than setting 0%, set the current to the next step beyond 0% (the
minimum step in the reverse direction) for better power dissipation results.
However, if the 0% (actually 10%) current cycle is long, the power dissipation may be greater than in Off mode
because of the need for constant-current control.
Therefore, Toshiba recommend setting the current according to the actual operating pattern. (1-2 Phase Excitation
mode is the most effective.)
Flyback Diode Mode
Non-flyback Diode Mode
Output off
period
Diode parasite
Constant-
current
control
[%]
100
10
0
10
100
Load
To V
M
power supply
U
2
OFF
L
2
OFF
R
R
U
1
OFF
L
1
OFF
Forced Off mode
PGND
Charge
R
S
pin
The coil’s energy returns through
the parasitic diodes.
Because V
DS
< V
F
, the power
dissipation is large.
Constant-
current
control
[%]
100
10
0
10
100
Charge
Charge
Specifies a level of 10%,
either side of 0.
U
2
OFF
OFF
L
1
Load
To V
M
L
2
U
1
ON
Charge mode
PGND
ON
R
S
pin
The coil’s energy returns through
the MOS, which is turned on.
Then the coil is charged to a level
of 10%.
The power dissipation is smaller
than when the energy is returned
via the parasitic diode.
(However, the longer the
±
10%
rated current control time, the
longer the period of current
dissipation.)
R
R
Constant-
current
control
Constant-
current
control
Constant-
current
control
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TB62201AFG(EL) 功能描述:馬達(dá)/運動/點火控制器和驅(qū)動器 Combination 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
TB62202AFG 制造商:Toshiba America Electronic Components 功能描述:
TB62202AFG(EL) 功能描述:馬達(dá)/運動/點火控制器和驅(qū)動器 Combination 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 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:馬達(dá)/運動/點火控制器和驅(qū)動器 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
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