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參數(shù)資料
| 型號(hào)： | 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(jī) RPM 控制器 |
| 文件頁數(shù)： | 20/27頁 |
| 文件大?。?/td> | 376K |
| 代理商： | TPIC43T01 |
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TPIC43T01, TPIC43T02
THREE-PHASE BRUSHLESS MOTOR RPMCONTROLLERS
SLIS098 – APRIL 2000
20
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PRINCIPLES OF OPERATION
current limit/over-current shutdown
Referring to Figure 15, two comparators monitor the voltage drop across an external current sensing resistor,
R
(SENSE)
. The sensed voltage, V
(SENSE)
, s then compared against two V
CC
referred voltages, V
L
and V
(OCSD)
.
When V
(SENSE)
exceeds V
L
, the ILIM comparator outputs a high level. When V
(SENSE)
exceeds V
(OCSD)
, the
OCSD comparator also outputs a high level. The combination of these two comparator outputs is then used in
conjunction with a deglitch or blanking timer to discriminate between a high di/dt, short-duration current spike.
This spike is commonly caused by reverse recover time (t
rr
) current at the start of each PWM cycle and a portion
of the current waveform with lower di/dt. The lower di/dt is controlled by the L/R time constant of the motor
winding (see Figure 16). A comparator is also used to detect over current conditions caused by a shorted-load
or shorted phase-winding to GND (see Figure 17).
Q
D
Q CLK
CLR
_
+
_
+
V(LM)
VOCSD
OCSD
COMP
ILIM
COMP
R
2
×
R
Digital
Deglitch
(0.5–2
μ
s)
PWM
Control
IDET
_
+
VDD
Vref
V(thres)
Generation
ILIMIT
Block
OCSD
S/S
PWM_OFF
PWM_START
OSC
VCC
Power
Drivers
SENSE
V(sense)
R(sense)
+
A
C
B
3-Phase
Motor
Figure 15. ILIMIT/OCSD Diagram
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| TPS2011(中文) | Power Distribution Switch(過流、限流、欠壓鎖定、熱關(guān)閉及ESD保護(hù),電源分配開關(guān)) |
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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(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)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(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)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(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)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(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)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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