参数资料
型号: BD6718FV-E2
元件分类: 运动控制电子
英文描述: BRUSHLESS DC MOTOR CONTROLLER, 0.02 A, PDSO20
封装: ROHS COMPLIANT, SSOP-20
文件页数: 21/34页
文件大小: 1916K
代理商: BD6718FV-E2
28/40
6) Hall input setting
Hall input voltage range is shown in operating conditions.
Fig.89 Hall input voltage range
Adjust the value of hall element bias resistor R1 and R2 in Fig.90 so that the input voltage of a hall amplifier is input in
"hall input voltage range" including signal amplitude.
Reducing the noise of hall signal
Hall element may be affected by Vcc noise or the like depending on the wiring pattern of board. In this case, place a
capacitor like C1 in Fig.90. In addition, when wiring from the hall element output to IC hall input is long, noise may be
loaded on wiring. In this case, place a capacitor like C2 in Fig.90.
Hall input voltage range
upper limit
Vcc
GND
H
a
llinput
volta
g
e
range
Hall input voltage range
lower limit
Fig.90 Application near hall signal
BD6718FV>
BD6709FS、BD6721FS、BD6722FS>
Setting R2=0 ohm is acceptable for
BD6721FS and BD6722FS.
Hall bias current
= Vcc / (R1 + R2 + RH)
Hall element
H-
H+
Vcc
C2
R1
RH
C1
H-
H+
HB
C2
R1
RH
C1
Hall bias current
= HB / (R1 + RH)
R2
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相关代理商/技术参数
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BD6721FS_1 制造商:ROHM 制造商全称:Rohm 功能描述:Single-Phase Full-Wave Motor Driver for Fan Motor
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BD6722FS 制造商:ROHM 制造商全称:Rohm 功能描述:Single-Phase Full-Wave Motor Driver for Fan Motor
BD6722FS_1 制造商:ROHM 制造商全称:Rohm 功能描述:Single-Phase Full-Wave Motor Driver for Fan Motor