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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： | 15/34页 |
| 文件大小： | 1916K |
| 代理商： | BD6718FV-E2 |
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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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相关代理商/技术参数 |
参数描述 |
|---|---|
| BD6721FS | 制造商:ROHM 制造商全称:Rohm 功能描述:Single-Phase Full-Wave Motor Driver for Fan Motor |
| 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 |
| BD6721FS-E2 | 功能描述:IC MOTOR DRIVER SGL PHASE SSOP16 RoHS:是 类别:集成电路 (IC) >> PMIC - 电机和风扇控制器，驱动器 系列:- 产品变化通告:ATA683(3,4)PLQW Obsolescence 09/Aug/2012 标准包装:1 系列:- 应用:DC 电机控制器，无刷（BLDC），3 相 评估套件:可供 输出数:1 电流 - 输出:100mA 电压 - 负载:5.25 V ~ 20 V 电源电压:5.25 V ~ 20 V 工作温度:-40°C ~ 150°C 安装类型:表面贴装 封装/外壳:48-VFQFN 裸露焊盘 供应商设备封装:48-VQFN（7x7） 包装:剪切带 (CT) 其它名称:ATA6833-PLQWCT |
| 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 |
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