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參數(shù)資料
| 型號(hào)： | TLE6280GP |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, PDSO36 |
| 封裝： | PLASTIC, SO-36 |
| 文件頁(yè)數(shù)： | 25/25頁(yè) |
| 文件大小： | 357K |
| 代理商： | TLE6280GP |
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Datasheet TLE6280GP
9
2007-07-19
Estimation of power dissipation within the driver IC
The power dissipation within the driver IC is strongly dependent upon the use of the driver
and the external components. Nevertheless, a rough estimation of the worst case power dis-
sipation is possible.
Worst case calculation is:
PD = (Qgate*n*const* fPWM + IVS(open)) * VVs - PRGate
With:
PD
= Power dissipation in the driver IC
fPWM
= Switching frequency
Qgate
= Total gate charge of used MOSFET at 10V VGS
n
= number of switched Mosfets
const
= constant considering some leakage current in the driver and the power dissipa-
tion caused by the charge pump (nominally = 2)
IVS(open) = Current consumption of driver without connected Mosfets during switching
VVS
= Voltage at Vs
PRGate
= Power dissipation in the external gate resistors
This value can be reduced dramatically by the use of external gate resistors.
Recommended start up procedure
To assure the driver to be active and functional, a special initialization procedure is required
whenever the gate drive is enabled (VMFP is changed from LO to HI). Every time the driver is
enabled, after 10
s or later, positive-going transition signals at all ILx pins are required in or-
der to ensure proper start-up of the output driver. This procedure assures a proper wake up
the device and allowes to fill the bootstrap capacitors. Not filling the bootstrap capacitors
might lead to low Gate-Source voltages mainly in highside and can cause a short circuit de-
tection when the highside switches are activated. Not changing the ILx input signal after
enabling the device may cause the lowside outputs to stay in off conditions.
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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 |
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| TLE6280GP-T | 功能描述:功率驅(qū)動(dòng)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(shí)間: 下降時(shí)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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