參數(shù)資料
型號： TPIC43T01DA
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)： 5/29頁
文件大?。?/td> 463K
代理商： TPIC43T01DA
TPIC43T01, TPIC43T02
THREE-PHASE BRUSHLESS MOTOR RPM CONTROLLERS
SLIS098 – APRIL 2000
13
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PRINCIPLES OF OPERATION
VDD
UVLO
3 Counts
PUC
S/S
Internal
5.8 MHz
OSC
÷ 32
Charge Pump
UV
t(DG)
PWM
(22 KHz)
CPUV
D
Q
CLR
ENA
Shutdown
Latch
VDD
OSC
Lock
OSC
Lock
Detect
Lock
Counter
LTCLR
ILIM
OCSD
LT
ENA
CLR
t(DG)
Figure 6. Shutdown Logic Block Diagram
FG amplifier
The FG amplifier amplifies the ac signal from the FG variable-reluctance pickup and converts it to a digital signal
for internal use in the FG frequency control loop (see Figure 7). Figure 8 illustrates the generation of the
FGSOUT signal in the FG amplifier section. Two comparators driving an RS latch are used with the upper
comparator threshold (taken from the 5 V VDD band-gap buffer circuit feedback resistor string), while the lower
comparator threshold is connected to the FG bias voltage. This provides controlled hysteresis above the FGIN+
amplifier input reference voltage and zero-crossing detection at the input reference voltage.
_
+
_
+
R
S
Q
FG
Comparator
_
+
FGS Buffer
FG Amp
_
+
1/2 VDD
+ 180 mV
1/2 VDD
Band-Gap
Buffer
OP-Amp
FGSOUT
FGOUT
FGIN–
FGIN+
330 k
1 k
1
F
FG
Winding
150 pF
Figure 7. FG Signal Conditioning Schematic
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相關代理商/技術參數(shù)
參數(shù)描述
TPIC43T01DAR 功能描述:馬達/運動/點火控制器和驅動器 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 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube
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
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