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參數(shù)資料
| 型號： | TPIC43T02DAR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 運動控制電子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, PDSO38 |
| 封裝： | PLASTIC, TSSOP-38 |
| 文件頁數(shù)： | 14/29頁 |
| 文件大?。?/td> | 463K |
| 代理商： | TPIC43T02DAR |
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TPIC43T01, TPIC43T02
THREE-PHASE BRUSHLESS MOTOR RPM CONTROLLERS
SLIS098 – APRIL 2000
21
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PRINCIPLES OF OPERATION
current limit/over-current shutdown (continued)
The deglitch timer prevents the ILIM COMP high from being recognized unless it occurs for the duration of the
timer, after which a high IDET level occurs. This IDET level is used to terminate, or latch off the upper gate drive
being driven by PWM for the remainder of the PWM interval. This ILIM latch and deglitch timer clears at the start
of each new PWM cycle; thus, a cycle-by-cycle PWM controlled current limit is implemented.
Current spike from trr
t(DG) = 0.5 to 6.5 s
t(DE-GLITCH)
Amplitude
VOCSD
VL
VCC – VSENSE
time
ILIM
COMP
IDET
OCSD
COMP
OCSD
Figure 16. Normal Motor Current Waveform With trr Spike at Start of PWM Cycle
Amplitude
High Ipeak from shorted phase winding
or shorted-phase-to-GND(> 5 A depending on the value of R(SENSE))
VOCSD
VL
VCC – VSENSE
t(ocsd) = 0.5 to 2.5 s
Combination of IDET high and OCSDCOMP high
sets OSCD latch
Latches high until S/S cycles
time
Figure 17. Motor Current Waveform With Shorted Phase Winding or Shorted Phase to GND
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相關代理商/技術參數(shù) |
參數(shù)描述 |
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| TPIC44H01 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:4-CHANNEL SERIAL AND PARALLEL HIGH-SIDE PRE-FET DRIVER |
| TPIC44H01DA | 功能描述:功率驅動器IC 4ChSerial/ParallelHi SidePreFETDrvr 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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| TPIC44H01DAG4 | 功能描述:功率驅動器IC 4Ch Ser/Para High- Side Pre-FET Drvr 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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| TPIC44H01DAR | 功能描述:功率驅動器IC 4Ch Ser/Para High- Side Pre-FET Drvr 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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| TPIC44H01DARG4 | 功能描述:功率驅動器IC 4Ch Ser/Para High- Side Pre-FET Drvr 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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
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