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參數(shù)資料
| 型號(hào)： | NJM3770AD3 |
| 廠商： | New Japan Radio Co., Ltd. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | STEPPER MOTOR DRIVER |
| 中文描述： | 步進(jìn)電機(jī)驅(qū)動(dòng)器 |
| 文件頁數(shù)： | 8/10頁 |
| 文件大?。?/td> | 173K |
| 代理商： | NJM3770AD3 |
NJM3770A
Analog control
As the current levels can be continuously controlled by modulating the V
R
input, limited microstepping can be
achieved.
Sensor resistor
The R
resistor should be of a noninductive type power resistor. A 0.5 ohm resistor, tolerance
≤
1%, is a good
choice for 800 mA max motor current at V
= 5V.
The peak motor current, i
m
, can be calculated by using the formula:
i
m
= (V
R
0.080) / R
S
[A], at 100% level
External recirculation diodes
Recirculation diodes must be connected across each motor terminal and the supply voltage, V
. The anodes shall
be connected to the motor terminals and the cathodes to the V
MM
voltage. Ultra-fast recovery diodes should be
used for maximum performance and reliability.
Thermal resistance [
°
C/W]
PCB copper foil area [cm ]
2
90
80
70
60
50
40
30
5
10
15
20
30
35
25
PLCC package
DIP package
16-pin
DIP
20-pin
EMP
28-pin
PLCC
I
0A
I
1A
Ph
A
Ph
B
I
0B
I
1B
I
MA
I
MB
100%
60%
20%
–100%
–60%
–20%
–60%
100%
60%
–100%
Half step mode at 100 %
Full step mode at 60 %
Stand by mode
at 20 %
Full step position
Half step position
Figure 8. Copper foil used as a heatsink
Figure 9. Principal operating sequence.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| NJM3770AE2 | 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 |
| NJM3770AE2-TE2 | 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 |
| NJM3770AFM2 | 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 |
| NJM3770AFM2-TE2 | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 Stepper 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 |
| NJM3770AFM2-TE3 | 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 |
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