- 您现在的位置：买卖IC网 > PDF目录39188 > LB1695D BRUSHLESS DC MOTOR CONTROLLER, 2 A, PDIP20 PDF资料下载
参数资料
| 型号： | LB1695D |
| 元件分类： | 运动控制电子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, 2 A, PDIP20 |
| 封装： | HEAT SINK, DIP-20 |
| 文件页数： | 10/10页 |
| 文件大小： | 232K |
| 代理商： | LB1695D |
LB1695D
No. 6205-9/10
Continued from preceding page
Because the current limiter circuit is slanted towards the ON time for turning the sink-side output on again,
the reverse current will not be so large even if a rectifying diode (without a short reverse recovery time) is
used as regenerative current absorption diode connected externally.
7-3.
Output off time setting
The output off time must be optimized for the type of motor that is being controlled. The output off time
setting is controlled by the external resistance connected to the R pin and the external capacitance connected
to the C pin. Figure 1 shows the current limiter operating waveform.
(1) Short output off time setting
Because the IC is designed internally to give a ratio of about 3:1 for the output off time and output
current ignore time, the two values cannot be set independently. If the output off time is set to a very
small value, the output current ignore time may be too short. In such a case, the external regenerative
current absorption diode acts to limit current flow by its reverse current (see section 7-2). If the output
off time is small, the diode reverse current will increase, which can lead to ASO problems.
(2) Long output off time setting
If the output off time is set to a very high value, the average current will be reduced, resulting in lower
motor startup torque. Depending on the motor type, the circuit may not change from the current limiter
operating state to the normal rotation state.
Figure. 1
Current limiter operating waveform
toff
tsm
tso
2.0V
0.4V
0.0V
0.5V
0.0V
RF pin voltage
C pin voltage
Continued on next page
相关PDF资料 |
PDF描述 |
|---|---|
| LB1740-6R | 1-OUTPUT 680 W AC-DC PWR FACTOR CORR MODULE |
| LB1836M | SPECIALTY ANALOG CIRCUIT, PDSO14 |
| LB1837M | SPECIALTY ANALOG CIRCUIT, PDSO14 |
| LB1845 | STEPPER MOTOR CONTROLLER, 1.75 A, PDFM28 |
| LB1845 | STEPPER MOTOR CONTROLLER, 1.75 A, PDFM28 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LB1695M | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:DC Fan Motor Driver |
| LB1696 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:3-phase Brushless Motor Driver |
| LB1696-E | 功能描述:马达/运动/点火控制器和驱动器 RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| LB16CGG01 | 功能描述:按钮开关 SPDT ON-ON GRAY ROUND BODY ONLY RoHS:否 制造商:C&K Components 触点形式:2 NC - 2 NO 开关功能:ON ? OFF 电流额定值:4 A 电压额定值 AC:12 V to 250 V 电压额定值 DC:12 V to 50 V 功率额定值: 安装风格:Through Hole 照明:Illuminated 照明颜色:None IP 等级:IP 40 端接类型:Solder 触点电镀:Silver 执行器:Square 盖颜色: 封装: 可燃性等级:UL 94 V-0 |
| LB16CGG01-05-BJ | 制造商:NKK 制造商全称:Nihon Kaiheiki Industry Co. Ltd. 功能描述:Standard Size Pushbuttons |
发布紧急采购，3分钟左右您将得到回复。