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參數(shù)資料
| 型號： | TB62202AFG |
| 廠商： | Toshiba Corporation |
| 英文描述： | Dual-Stepping Motor Driver IC for OA Equipment Using PWM Chopper Type |
| 中文描述： | 雙辦公自動化設備步進馬達驅(qū)動IC用PWM斬波型 |
| 文件頁數(shù)： | 4/84頁 |
| 文件大?。?/td> | 1272K |
| 代理商： | TB62202AFG |
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TB62202AFG
2005-04-04
4
3. Current feedback circuit and current setting circuit
(A/B unit (C/D unit is the same as A/B unit)
Function
The current setting circuit is used to set the reference voltage of the output current using the micro
step
current setting data input from the DATA pins.
The current feedback circuit is used to output to the output control circuit the relation between the set
current value and output current. This is done by comparing the reference voltage output to the current
setting circuit with the potential difference generated when current flows through the current sense resistor
connected between RS and V
M
.
The chopping waveform generator circuit to which CR is connected is used to generate clock used as
reference for the chopping frequency.
Note 1: RS COMP 1: Compares the set current with the output current and outputs a signal when the output current
reaches the set current.
Note 2: RS COMP 2: Compares the set current with the output current at the end of Fast mode during chopping.
Outputs a signal when the set current is below the output current.
100%
85%
70%
50%
CR
V
RS
circuit 1
(detects
potential
difference
between
R
S
and V
M
)
R
S
COMP
circuit 1
(Note 1)
NF
(set current reached signal)
V
RS
circuit 2
(detects
potential
difference
between
V
M
and R
S
)
R
S
COMP
circuit 2
(Note 2)
RNF
(set current monitor signal)
Use in Fast mode
Use in Charge mode
Output
control circuit
Mixed decay
timing circuit
Output stop signal (ALL OFF)
Chopping reference circuit
Current feedback circuit
Torque
Control
circuit
Current setting circuit
TORQUE
0, 1
CURRENT
0~3
LOGIC
UNIT
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
M
s
4-bit
D/A
circuit
V
M
R
S
V
ref
Waveform shaping circuit
Chopping waveform
generator circuit
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| TB62300FG | Dual Full-Bridge Driver for DC Motor |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TB62202AFG(EL) | 功能描述:馬達/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/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(qū)動器 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 |
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