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參數(shù)資料
| 型號： | TLE6280GP |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 元件分類： | 運動控制電子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, PDSO36 |
| 封裝： | PLASTIC, SO-36 |
| 文件頁數(shù)： | 23/25頁 |
| 文件大小： | 357K |
| 代理商： | TLE6280GP |
Datasheet TLE6280GP
7
2007-07-19
Shoot through protection / option
As already mentioned, the device has a built-in shoot-through protection, to avoid a simulta-
neous activation of high- and low-side switch in one half-bridge.
In case there is a short circuit in the bridge, the driver will switch off all external Mosfets. If
there is still current flowing in the motor, it is possible for the user to override this shoot
through protection.
By setting the ILx to “high”, the IHx to “l(fā)ow” and MFP to a level above 4.5V, all external Mos-
fets will be turned on simultaneously to blow a well-dimensioned fuse. The application will be
finally disconnected in this way from battery, and thus guarantee that the motor does not ap-
ply any uncontrolled torque.
Undervoltage warning:
If the voltage of a bootstrap capacitor CBxx reaches the undervoltage warning level the error
flag is set and will remain set until the voltage of the bootstrap capacitor has recovered.
The error signal can be seen as awarning that an undervoltage shut-down could occur soon,
and the user can take appropriate measures to avoid this. Such measures could be the
change of the duty cycle to a range of 10-90% or the ramp down of the motor.
Undervoltage shut down:
The TLE6280GP has an integrated undervoltage shut-down, to guarantee that the behavior
of the device is predictable in all voltage ranges.
If the voltage of a bootstrap capacitor CBxx reaches the undervoltage shut-down level, the
Gate-Source voltage of the affected external Mosfet will be actively pulled to low. In this
situation the short circuit detection of this output stage is deactivated to avoid a complete
&
NAND
Vmfp x 2
MFP
Shoot
Through
80ns
1.45 /
1.7V
Gate
control
4.5V
IHx
ILx
Levelshifter
Dissable
=
Reset
Fig. 4: Block diagram of internal structure of MFP pin
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| TLE6280GPAUMA1 | 制造商:Infineon Technologies AG 功能描述:3-Phase Bridge Driver 36-Pin DSO T/R 制造商:Infineon Technologies AG 功能描述:DRIVER_IC - Tape and Reel |
| TLE6280GPAUMA2 | 制造商:Infineon Technologies AG 功能描述:3-Phase Bridge Driver T/R 制造商:Infineon Technologies AG 功能描述:3-Phase Bridge Driver 36-Pin DSO T/R 制造商:Infineon Technologies AG 功能描述:DRIVER_IC - Tape and Reel |
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| TLE6280GP-T | 功能描述:功率驅(qū)動器IC GATE DRIVER ICS FOR EXTERNAL MOSFETS RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
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