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參數(shù)資料
| 型號： | TPIC43T01 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Three-Phase Brushless Motor RPM Controller |
| 中文描述： | 三相無刷電機 RPM 控制器 |
| 文件頁數(shù)： | 21/27頁 |
| 文件大?。?/td> | 376K |
| 代理商： | TPIC43T01 |
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TPIC43T01, TPIC43T02
THREE-PHASE BRUSHLESS MOTOR RPMCONTROLLERS
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
μ
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
μ
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
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TPIC43T01DA | THREE-PHASE BRUSHLESS MOTOR RPM CONTROLLERS |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPIC43T01DA | 功能描述:馬達/運動/點火控制器和驅(qū)動器 3 Phase Brushless MotorRPMController RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| TPIC43T01DAR | 功能描述:馬達/運動/點火控制器和驅(qū)動器 3-Phase Brushless Motor RPM Controller RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| TPIC43T02 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:THREE-PHASE BRUSHLESS MOTOR RPM CONTROLLERS |
| TPIC43T02DA | 功能描述:馬達/運動/點火控制器和驅(qū)動器 3-Phase Brushless Motor RPM Controller RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| TPIC43T02DAR | 功能描述:馬達/運動/點火控制器和驅(qū)動器 3-Phase Brushless Motor RPM Controller RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
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