參數(shù)資料
型號(hào)： FAN8729
廠商： FAIRCHILD SEMICONDUCTOR CORP
元件分類： 光電元器件
英文描述： Spindle+4-CH Motor Drive IC
中文描述： 4 CHANNEL CD MOTOR DRIVER, PQFP52
封裝： 14 X 14 MM, QFP-52/48
文件頁(yè)數(shù)： 15/24頁(yè)
文件大?。?/td> 487K
代理商： FAN8729
FAN8729
15
7. Rotational Direction Detecting Function
Rotation detection circuit gives the result to DIR pin by
detecting the MD’s rotational direction.
Detects the MD’s rotational direction using hall signals H2 and
H3.
Feature Table.
Rotation
EC < ECR
Forward
EC > ECR
Reverse
In case of forward rotational detection, the phase of hall signal shows as H3
→
H2
→
H1 as follows;
In case of reverse rotational detection, the phase of hall signal shows as H1
→
H2
→
H3 as follows;
Forward/Reverse rotational direction is decided as follows. When hall signal H3 is falling edge, if H2 shows "High", the
rotational direction is "Forward", and if H2 shows "Low", rotational direction is "Reverse".
DIR
Low
High
D
CK
Q
+
-
+
-
R
D-F/F
8
DIR
H2+
H2-
H3+
H3-
H1
H2
H3
(b)
H1
H2
H3
(a)
相關(guān)PDF資料
PDF描述
FAN8729_NL Spindle+4-CH Motor Drive IC
FAN8732BG Spindle motor and 5-CH actuator driver [Spindle(PWM), Sled 2-CH(PWM) 3-CH(Linear)]
FAN8732BGX Spindle motor and 5-CH actuator driver [Spindle(PWM), Sled 2-CH(PWM) 3-CH(Linear)]
FAN8732CG Spindle motor and 5-CH actuator driver [Spindle(PWM), Sled 2-CH(PWM) 3-CH(Linear)]
FAN8732CGX Spindle motor and 5-CH actuator driver [Spindle(PWM), Sled 2-CH(PWM) 3-CH(Linear)]
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
FAN8729_NL 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Spindle+4-CH Motor Drive IC
FAN8731D 功能描述:功率驅(qū)動(dòng)器IC RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時(shí)間: 下降時(shí)間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
FAN8732BG 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Spindle motor and 5-CH actuator driver [Spindle(PWM), Sled 2-CH(PWM) 3-CH(Linear)]
FAN8732BGX 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Spindle motor and 5-CH actuator driver [Spindle(PWM), Sled 2-CH(PWM) 3-CH(Linear)]
FAN8732CG 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Spindle motor and 5-CH actuator driver [Spindle(PWM), Sled 2-CH(PWM) 3-CH(Linear)]
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