參數(shù)資料
型號(hào)： BD6718FV-E2
元件分類： 運(yùn)動(dòng)控制電子
英文描述： BRUSHLESS DC MOTOR CONTROLLER, 0.02 A, PDSO20
封裝： ROHS COMPLIANT, SSOP-20
文件頁(yè)數(shù)： 15/34頁(yè)
文件大小： 1916K
代理商： BD6718FV-E2
22/40
Area ①
LAOUT or VTH＜OSC L voltage＜VMIN＜OSC H voltage
Rotating speed in full torque operation (ON-DUTY = 100%)
Area ②
OSCL voltage＜LAOUT or VTH＜VMIN＜OSC H voltage
Rotating speed is determined by ON-DUTY set by LAOUT terminal voltage or VTH
terminal voltage.
Area ③
OSCL voltage＜VMIN＜LAOUT or VTH＜OSC H voltage
Rotating speed is determined by ON-DUTY set by VMIN terminal voltage.
The motor can be stopped by setting OSCH voltage＜VMIN (ON-DUTY = 0%).
Assuming that VTH thermistor resistor is open, when VTH terminal voltage is above VREF, full torque operation is
performed.
〇
Level amplifier ＜BD6709FS, BD6721FS＞
Level amplifier amplifies the voltage of VTH by the ratio of resistor connected to LAOUT and LAIN to be output to
LAOUT.
In the case of Fig.75, LAOUT = (10k + 20k)/10k×VTH, and the input voltage at VTH terminal is approximately tripled.
It enables a broad setting corresponding to the characteristics of thermistor resistor.
Furthermore, when VTH terminal voltage need not be amplified, LAOUT and LAIN should be shorted as shown in
Fig.76. VTH terminal voltage equals to LAOUT terminal voltage.
〇
Restart from lock protecting operation＜BD6709FS, BD6718FV, BD6722FS＞
When restarting from lock protection operation, VMIN becomes L so that the motor restarts in full torque.
The time for reaching full torque is determined by resistor R1 and capacitor C1 connected to VMIN terminal as shown in
Fig.77.
Fig.74
Setting of rotating speed
Fig.77
Restart from lock protection (DC input)
Fig.76
Level amplifier application 2
Fig.75
Level amplifier application
③
②
①
rpm
③
Rotating speed determined by VMIN terminal
①
Rotating speed in full torque operation
②
Determined by LAOUT terminal voltage or VTH
Ta
(Same as area ② in Fig.73)
(Same as area ③ in Fig.73)
(Same as area ① in Fig.73)
+
－
VREF
VTH
LAIN
LAOUT
R1=10kΩ
+
－
VREF
VTH
LAIN
LAOUT
R2=20kΩ
+
－
VMIN
LAOUT
COSC
VREF
R1
R2
C1
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
BD6721FS 制造商:ROHM 制造商全稱:Rohm 功能描述:Single-Phase Full-Wave Motor Driver for Fan Motor
BD6721FS_1 制造商:ROHM 制造商全稱:Rohm 功能描述:Single-Phase Full-Wave Motor Driver for Fan Motor
BD6721FS-E2 功能描述:IC MOTOR DRIVER SGL PHASE SSOP16 RoHS:是 類別:集成電路 (IC) >> PMIC - 電機(jī)和風(fēng)扇控制器，驅(qū)動(dòng)器 系列:- 產(chǎn)品變化通告:ATA683(3,4)PLQW Obsolescence 09/Aug/2012 標(biāo)準(zhǔn)包裝:1 系列:- 應(yīng)用:DC 電機(jī)控制器，無(wú)刷（BLDC），3 相 評(píng)估套件:可供 輸出數(shù):1 電流 - 輸出:100mA 電壓 - 負(fù)載:5.25 V ~ 20 V 電源電壓:5.25 V ~ 20 V 工作溫度:-40°C ~ 150°C 安裝類型:表面貼裝 封裝/外殼:48-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:48-VQFN（7x7） 包裝:剪切帶 (CT) 其它名稱:ATA6833-PLQWCT
BD6722FS 制造商:ROHM 制造商全稱:Rohm 功能描述:Single-Phase Full-Wave Motor Driver for Fan Motor
BD6722FS_1 制造商:ROHM 制造商全稱:Rohm 功能描述:Single-Phase Full-Wave Motor Driver for Fan Motor
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