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参数资料
| 型号： | LB1920 |
| 元件分类： | 运动控制电子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, 3.1 A, PDIP28 |
| 封装： | HEAT SINK, SDIP-28 |
| 文件页数： | 5/7页 |
| 文件大小： | 205K |
| 代理商： | LB1920 |
LB1920
Νο.4949-5/10
Truth Table
F/R = low
F/R = high
Source
→ Sink
IN1
IN2
IN3
IN1
IN2
IN3
1
OUT3
→ OUT2
H
L
H
2
OUT3
→ OUT1
H
L
H
3
OUT2
→ OUT1
H
L
H
L
H
L
4
OUT2
→ OUT3
L
H
L
5
OUT1
→ OUT3
L
H
L
6
OUT1
→ OUT2
L
H
L
H
L
H
Note : Input high refers to the state where IN+ > IN-.
The formula below gives the relationship between the oscillator frequency (fOSC) and the FG frequency (fFC).
fFC (servo) = fOSC/(ECL divisor (16)×number of counts)
= fOSC/8192
Crystal Oscillator External Circuit
External Circuit Constants (reference values)
X’tal (MHz)
C1 (pF)
C2 (pF)
R (k
)
3 to 4
39
82
0.82
4 to 5
39
82
1.0
5 to 7
39
47
1.5
7 to 10
39
27
2.0
Note : However, the crystal used must have a fundamental frequency fo impedance to 3fo
impedance ratio of 1 : 5 or greater.
Block Diagram
FGOUT
FGIN-
FGIN+
7V
X'tal
GND2
IN1
+
+
+
4V REG
7V REG
DIVIDER
PLL
SPEED
DISCRIMINATOR
OSC
ECL
LD
CR OSC
CURR
LIM
TSD
HALL HYS AMP
LOGIC
IN2
IN3
F/R
VCC
S/S
5V
LD
GND1
OUT3
OUT2
OUT1
VM
Rf
VCC
LD
F/R
S/S
5V REG
DRIVER
CR
INTOUT
POUT
DOUT
FGSOUT
INTIN
2.5V
VCC
7V REG
5V REG
+
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LB1920-E | 功能描述:马达/运动/点火控制器和驱动器 RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| LB1920-N-E | 功能描述:马达/运动/点火控制器和驱动器 RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| LB1921 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Three-Phase Brushless Motor Driver for OA Applications |
| LB1922 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Three-Phase Brushless Motor Driver for Office Automation Applications |
| LB1923M | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Power Brushless Motor Pre-Driver IC for OA Equipment |
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