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参数资料
| 型号： | TA8429H |
| 元件分类： | 运动控制电子 |
| 英文描述： | BRUSH DC MOTOR CONTROLLER, 4.5 A, PZFM12 |
| 封装： | 1.78 MM PITCH, PLASTIC, HZIP-12 |
| 文件页数： | 9/14页 |
| 文件大小： | 414K |
| 代理商： | TA8429H |
TA8429H/HQ
2006-3-2
4
Over-current Protection (ISD)
● Basic operation
When the output current (pin 4 or 8, that is, Isink or Isource) is equal to or lower than the ISD detection
current, the input signal controls the output. If the output current exceeds the detection current, it changes
to a switching waveform shown in Figure 1.
Figure 1 Basic operation
● Explanation of the operation
The output current is detected by monitoring the VBE of each output transistor. A detector element is
connected to each output transistor and to a short-circuit prevention circuit. If a current higher than the ISD
detection current flows through one of the four output transistors, the short-circuit prevention circuit starts
operating. This circuit incorporates a timer. If the over-current mode lasts for 20
s (typically), the output is
switched to the high-impedance state. It returns to the ON mode in 80
s (typically). If the IC is still in the
over current mode, the switching mode stated above is repeated until the IC is released from the
over-current mode.
This circuit cannot limit all types of over current. If the outputs are short-circuited to each other or to a
ground, the IC may break down before the protection circuit starts operating. Therefore use a resistor or fuse
in the supply voltage (VS) line.
Detection current of 5 A
(typically)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TA8429HQ | 制造商:Toshiba America Electronic Components 功能描述:BRUSH DC MOTOR CONTROLLER, 4.5 A, PZFM12 |
| TA8429HQ(5) | 功能描述:马达/运动/点火控制器和驱动器 Bridge Driver 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 |
| TA8429HQ(O) | 功能描述:马达/运动/点火控制器和驱动器 Bridge Driver 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 |
| TA8429HQ(O,S) | 制造商:Toshiba America Electronic Components 功能描述:Moter Driver,Full Brdg Driver,HZIP12 |
| TA8430 | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:STEPPING MOTOR DRIVER IC |
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