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| 型号： | TA7257P |
| 元件分类： | 运动控制电子 |
| 英文描述： | BRUSH DC MOTOR CONTROLLER, 4.5 A, PSFM7 |
| 封装： | 2.54 MM PITCH, PLASTIC, HSIP-7 |
| 文件页数： | 4/7页 |
| 文件大小： | 154K |
| 代理商： | TA7257P |
TA7257P
2003-08-12
4
Application Note
(1)
Input circuit
Input circuit is shown in Figure 1. It’s a “Low active” type voltage comparator that’s one input connect to
Input terminal (pin (1), or (2)) and the other to builtin temperature compensated voltage reference (VTH
=
1.4 V Typ.)
If a voltage above VIN (H) fed into the Input Terminal that means “Logic 1” and less than
VIN (L) or connect to GND means “Logic 0”.
Figure 1
(2)
Basic application circuit
Figure 2
Note 1: An optimum C or R value varies depending on what type of motor is in use. Select each optimum value by
experiment.
Note 2: Do not use silicone rubber to mount a heat radiation panel.
Note 3: Utmost care is necessary in the design of the output line, VCC (VM, VS, VEE) and GND line since IC may be
destroyed due to shortcircuit between outputs, to supply, or to ground.
Note 4: Switching the inputs may allow a punch-through current to flow. Keep the IC device in the STOP mode (for at
least 100
s) during the switching. Alternatively, insert a current limiting resistor R.
Note 5: When the power is rising or falling, the IC device may not able to function normally. Before employing it,
make sure that this nature of the IC device raises no problem to your application.
Note 6: When turning on the power for the IC device, apply VS after VCC (or VCC and VS simultaneously). When
shutting off the power, drop VS before VCC (or Vs and VCC simultaneously).
Note 7: The thermal shutdown or overcurrent protection circuit cannot protect the IC device in every case. If the
maximum rating is exceeded instantaneously, the IC device may break down before the protection circuits
start operating.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TA7259 | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:DC MOTOR DRIVER IC |
| TA7259F | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:3-PHASE BRUSHLESS DC MOTOR DRIVER IC |
| TA7259FG | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:3-PHASE BRUSHLESS DC MOTOR DRIVER IC |
| TA7259P | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:DC MOTOR DRIVER IC |
| TA7259P(5) | 制造商:Toshiba America Electronic Components 功能描述: |
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