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參數(shù)資料
| 型號(hào)： | LB1965 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | Two-Phase Unipolar Driver for Variable-Speed Fan Motor |
| 中文描述： | 兩相變單極驅(qū)動(dòng)的高速風(fēng)扇電機(jī) |
| 文件頁(yè)數(shù)： | 3/6頁(yè) |
| 文件大小： | 61K |
| 代理商： | LB1965 |
LB1965M
No. 6189-3/6
Sample Application Circuit
Truth Table
IN
+
H
L
H
L
–
–
IN
–
L
H
L
H
–
–
Ct
H
H
H
H
L
–
Rt
L
L
H
H
H
–
RMI
H
H
L
L
H
–
CR
L
L
L
L
L
H
OUT1
H
L
H
L
H
H
OUT2
L
H
L
H
H
H
FG
L
H
L
H
–
–
Mode
Full speed
Full speed
Minimum speed
Minimum speed
Low speed
Lockup protection
The above circuit is an example for ambient temperature based speed control using a thermistor.
The thermistor voltage (Rth pin voltage) is multiplied internally by 1.6 and compared to the
voltage at the Ct pin. With the above settings and at Ta = 25C, the Rth pin voltage is interrupted
for the interval t off as defined by the equation below. At Ta = 45C, because the Rth pin voltage
×
1.6 becomes less than Vct (=1.5V), there is no cut-off interval and the motor is driven with a
duty ratio of 100%. At low temperatures, the thermistor voltage (Rth
×
1.6) will rise, but
minimum rotation speed is maintained to a value defined by the RMI pin voltage. Therefore
minimum rotation speed at temperatures below Ta = 25C is constant.
t = –C2
R2
In ( )
VIN–VRth
×
1.6
VIN–VCt
12V
Unit(resistance:
, capacitance: F)
H
B1
OUT1
OUT2
B2
GND
CR
RMI
Rth
Ct
IN+
R6
2k
R2
470k
D1
R1
390
Noise absorption
capacitor
0.01 to 0.047
μ
F
C1
0.47
μ
C2
0.022
μ
IN–
VIN
FG
R3
30k
TH
10k
R4
18k
R5
39k
C3
C4
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LB1965M | Two-Phase Unipolar Driver for Variable-Speed Fan Motor |
| LB1966 | Fan Motor 2-Phase Half-Wave Driver |
| LB1966M | Fan Motor 2-Phase Half-Wave Driver |
| LB1967 | Fan Motor 2-Phase Half-Wave Driver |
| LB1967M | Fan Motor 2-Phase Half-Wave Driver |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LB1965M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Two-Phase Unipolar Driver for Variable-Speed Fan Motor |
| LB1966 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Fan Motor 2-Phase Half-Wave Driver |
| LB1966M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Fan Motor 2-Phase Half-Wave Driver |
| LB1967 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Fan Motor 2-Phase Half-Wave Driver |
| LB1967M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Fan Motor 2-Phase Half-Wave Driver |
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