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參數(shù)資料
| 型號： | TB62209FG |
| 廠商： | Toshiba Corporation |
| 英文描述： | Stepping Motor Driver IC Using PWM Chopper Type |
| 中文描述： | 步進馬達驅動IC用PWM斬波型 |
| 文件頁數(shù)： | 4/51頁 |
| 文件大?。?/td> | 497K |
| 代理商： | TB62209FG |
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TB62209FG
2005-03-02
4
3. Current feedback circuit and current setting circuit
Function
The current setting circuit is used to set the reference voltage of the output current using the current
setting decoder.
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 R
S
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: R
S COMP1
: Compares the set current with the output current and outputs a signal when the output
current reaches the set current.
Note 2: R
S COMP2
: 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.
Waveform shaping circuit
V
M
R
S
V
ref
100
％
85
％
70
％
50
％
Chopping waveform
generator circuit
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
0
Current feedback
circuit
Torque
control
circuit
Current setting
circuit
D/A circuit
TORQUE
0, 1
CURRENT
0-3
Decoder
Unit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Micro-step
current
setting
selector
circuit
4-bit
D/A
circuit
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PDF描述 |
|---|---|
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TB62209FG(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(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 |
| TB62209FG(O,EL) | 功能描述:馬達/運動/點火控制器和驅動器 Stepping Motor PWM 40V 1.8A 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 |
| TB62209SN | 制造商:THOMAS & BETTS 功能描述: |
| TB622-100.0M | 制造商:Connor-Winfield 功能描述:OSC TCXO 100MHZ 3.3V SMD |
| TB-6221-01 | 功能描述:界面模塊 SWITCH TERMINATION BRD 62P D-SUB FEMALE RoHS:否 制造商:4D Systems 產(chǎn)品:Serial Converters 通道/端口數(shù)量: 數(shù)據(jù)速率: 接口類型:USB, UART 工作電源電壓:3.3 V, 5 V 最大工作溫度: |
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