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參數(shù)資料
| 型號： | LB1669 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | 2-Phase Unipolar Brushless Motor Driver |
| 中文描述： | 二相單極無刷電機(jī)驅(qū)動器 |
| 文件頁數(shù)： | 4/5頁 |
| 文件大?。?/td> | 69K |
| 代理商： | LB1669 |
Sample Application Circuit 2 Output Waveform Diagram
Truth Table
IN+
H
L
H
L
IN–
L
H
L
H
C
L
L
H
H
OUT1
H
L
H
H
OUT2
L
H
H
H
Design Notes
(See Sample Application Circuits.)
(1) Supply Voltage (V
IN
pin)
The LB1669 series have the internal parallel regulator which supplies power to the Hall amplifier circuit and the control
block. Therefore, the driver ICs are not affected by power source fluctuations and kickbacks from the motor. They maintain
the stable operations even if noise signals such as surge are generated.
Set the resistance R1 between V
CC
and V
IN
so that the I
CC
current of 6 mA to 50 mA can flow into the V
IN
pin within the
supply voltage range of a fan motor.
V
IN
is 6.7 V typ at I
CC
= 7 mA.
The current flowing into V
IN
is calculated using the equation shown below.
I
CC
=
V
CC
– V
IN
R1
. . . . . . . (1)
.
Consideration given to surge voltage
The maximum allowable current at V
IN
pin is 200 mA, so the withstand voltage level is designed as follows.
Vsurge = V
IN
+ R1
×
200 mA . . . . . . (2)
(2) Hall input pin voltage (IN– and IN+ pins)
IN– and IN+ are input pins for the Hall element output. Set the Hall element output voltage to within the range of 0 V to V
IN
– 1.5 V.
The gain between the Hall input pin and the output pin is 100 dB or greater. The offset voltage of the Hall input amplifier is
±
7 mV therefore, the Hall element output must be set with the offset voltage (
±
7 mV) considered.
(3) Output transistors (OUT1 and OUT2 pins)
Output current I
O
= 1.5 A max.
Output saturation voltage V
O
sat = 1.15 V/1.0 A (typ.)
The LB1669 requires one of the three types of output protection.
1
When external capacitors are connected between OUT and GND, the capacitance should not exceed 10 μF. Use
capacitance that will hold kickback voltage and back voltage to 60 V or less.
2
When external Zener diodes are connected, use one that will have a cutoff voltage of 40 V or less. If radio noise is a
problem, insert a capacitor of 0.01 to 0.1μF between B1 and B2.
3
When external capacitors are connected between OUT and B, use one that will hold kickback voltage to 40 V or less.
If it oscillates, insert resistance in series with the capacitor.
LB1669, 1669M
No.3513-4/5
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LB1669M | 2-Phase Unipolar Brushless Motor Driver |
| LB1670M | Driver for Brushless, Sensorless Motors |
| LB1672 | Brushless-Sensorless Motor Driver |
| LB1672NM | Brushless-Sensorless Motor Driver |
| LB1673M | 3-Phase Brushless, Sensorless Motor Driver |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LB1669M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:2-Phase Unipolar Brushless Motor Driver |
| LB1670 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| LB1670M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Driver for Brushless, Sensorless Motors |
| LB1671M | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Industrial Control IC |
| LB1672 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Brushless-Sensorless Motor Driver |
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