參數(shù)資料
型號(hào)： ST72T141K2M3XXX
廠商： STMICROELECTRONICS
元件分類： 微控制器/微處理器
英文描述： 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PDSO34
封裝： 0.300 INCH, PLASTIC, SO-34
文件頁數(shù)： 73/132頁
文件大?。?/td> 1494K
代理商： ST72T141K2M3XXX
ST72141K
45/132
MOTOR CONTROLLER (Cont’d)
Input Pins
The MCIA, MCIB and MCIC input pins can be
used as analog pins in Sensorless mode or as dig-
ital pins in Sensor mode. In sensorless mode, the
analog inputs are used to measure the BEMF zero
crossing and to detect the end of demagnetization
if required. In Sensor mode, they are connected to
sensor outputs.
Due to the presence of diodes, these pins can per-
manently support an input current of 5 mA. In Sen-
sorless mode, this feature enables the inputs to be
connected to each motor phase through a single
resistor.
Note: In high voltage applications, in Sensorless
mode and for certain motors and power topologies
(with parasitic capacitance or other), it may be re-
quired to add external pull-up Schottky 0.4 V (e.g.
BAT48) diodes on the MCIA, MCIB and MCIC
pins.
A multiplexer, programmed by the IS[1:0] bits in
MPHST register selects the input pins and con-
nects them to the rotor position control logic in ei-
ther Sensorless or Sensor mode.
Figure 29. Input Stage
VREF
Inputn Sel Reg
VR[1:0]
MCIC
MCIA
MCIB
A
B
C
IS[1:0]
C
P
00
01
10
+
-
External Input Block
Input Comparator Block
Event Detection
DQ
CP
ZVD bit
HDMn bit*
Z
DH
SR bit
or
1
2
1
2
20
s / D
20
s / C
CPBn bit*
REO bit
C
DS,H
CPBn bit*
V
I
16-bit Timer PWM
Sampling frequency
V0C1 bit
Freq (T=1.25
s) for demagnetization and sensors
Sample
C
DS,H
* = Preload register,
MPHST Register
MPAR Register
MCRA Register
MCRB Register MPAR Register
MCRB Register
MCRA Register
MCRB Register
Reg
C
DS,H
Z
events:
Commutation
BEFM Zero-crossing
End Of Demagnetization
E
Emergency Stop
Notes:
Updated/Shifted on R
Ratio Updated (+1 or -1)
Multiplier Overflow
R+/-
O
Current Mode
Voltage Mode
I
V
Regn
Updated with Regn+1 on C
1
2
Branch taken after C event
Branch taken after D event
changes taken into
account at next C event.
相關(guān)PDF資料
PDF描述
ST72T141K2MARE 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PDSO34
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ST7FL09Y0MBE 8-BIT, FLASH, 16 MHz, MICROCONTROLLER, PDSO16
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ST72T141K2M6 功能描述:8位微控制器 -MCU OTP EPROM 8K SPI RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
ST72T212G2B6 功能描述:8位微控制器 -MCU OTP EPROM 8K SPI RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
ST72T212G2M6 功能描述:8位微控制器 -MCU OTP EPROM 8K SPI RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
ST72T213G1B6 功能描述:8位微控制器 -MCU OTP EPROM 4K SPI RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
ST72T213G1M6 功能描述:8位微控制器 -MCU OTP EPROM 4K SPI RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
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