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參數(shù)資料
| 型號： | TPD7203F |
| 元件分類： | 運動控制電子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, 1 A, PDSO24 |
| 封裝： | 0.300 INCH, 1 MM PITCH, PLASTIC, SSOP-24 |
| 文件頁數(shù)： | 9/19頁 |
| 文件大?。?/td> | 901K |
| 代理商： | TPD7203F |
TPD7203F
2006-10-31
17
Usage Precautions
Note 1:
Feeding the charge pump voltage to external devices
Current can be taken out of the final stage (CPV pin) of the charge pump and fed to external devices
without causing any problem. In this case, because the charge pump voltage drops, increase the
capacitance of the capacitor connected to the CPV pin. However, this will cause the charging current to the
capacitor and, hence, loss in the IC to increase. Therefore be careful not to exceed the allowable loss.
Note 2:
Heat sink design
Because this IC contains a charge pump function, loss in it affects external capacitor capacitance and
diode characteristics. It is recommended that the junction temperature, Tj, be judged from the on-voltage of
the FAULT pin (open-drain). When VDD is within the range of operating power supply voltages, the FAULT
pin outputs a low. For details about on-voltage characteristics, see Tj-VFAULT characteristic curves.
Note 3:
Dead time setting
For arm-shorting input logic, all outputs (UU, VU, WU, UB, VB and WB) are pulled low. When
operating in forward or reverse mode, take into account the IC output switching time and the switching time
(including temperature characteristic) of the external power MOSFET when setting the dead time. The dead
time required for only the IC, not including the external power MOSFET, is 4
s (within all operating power
supply voltages and all operating temperatures).
Note 4:
Shorting between outputs, short-circuit of outputs and VDD pin or short-circuit of outputs and GND pin may
cause the IC to break down. Therefore, pay careful attention to the design of output lines and VDD and
GND lines.
Note 5:
Precautions on dry packing
After unpacking dry or moisture-proof packing, make sure the device is mounted in place within 48
hours at a temperature and humidity of 30°C and 60% RH or less. Because the device is emboss-taped
and cannot be processed by baking, always be sure to use it within the said allowable time after unpacking.
Standard tape packing quantity: 2000 devices / reel (EL1).
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