參數(shù)資料
型號(hào)： MM908E626
廠商： 飛思卡爾半導(dǎo)體(中國(guó))有限公司
元件分類(lèi)： 基準(zhǔn)電壓源/電流源
英文描述： Integrated Stepper Motor Driver with Embedded MCU and LIN Serial Communication
中文描述： 集成的步進(jìn)電機(jī)驅(qū)動(dòng)器，帶有嵌入式微控制器和LIN串行通信
文件頁(yè)數(shù)： 25/38頁(yè)
文件大?。?/td> 507K
代理商： MM908E626
Analog Integrated Circuit Device Data
Freescale Semiconductor
25
908E626
FUNCTIONAL DEVICE OPERATION
LOGIC COMMANDS AND REGISTERS
feature allows the reduction of EMI due to a reduction of the
di/dt (
Figure
).
Figure 13. Offset Chopping for Step Motor Control
HALF-BRIDGE CURRENT RECOPY
Each low-side MOSFET has an additional sense output to
allow a current recopy feature. This sense source is internally
connected to a shunt resistor. The drop voltage is amplified
and switched to the analog multiplexer.
The factor for the current sense amplification can be
selected via bit CSA in the System Control Register.
CSA = 1: Low resolution selected (500 mA
measurement range).
CSA = 0: High resolution selected (2.5 A measurement
range).
HALF-BRIDGE BEMF GENERATION
The BEMF output is set to “1” if a recirculation current is
detected in any half-bridge. This recirculation current flows
via the two freewheeling diodes of the power MOSFETs. The
BEMF circuitry detects that and generates a HIGH on the
BEMF output as long as a recirculation current is detected.
This signal provides a flexible and reliable detection of stall in
step motor applications. For this the BEMF circuitry takes
advantage of the instability of the electrical and mechanical
behavior of a step motor when blocked. In addition the signal
can be used for open load detection (absence of this signal)
(see
Figure 14
, page
26
).
Coil2 Current
Coil1 Current
Current in
VSUP Line
FGEN Input
(MCU PWM
Signal)
Coil1
…..
Coil2
…..
HB1
HB2
HB3
HB4
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MM908E626AVDWB 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 QUADSTEPPER RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類(lèi)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
MM908E626AVDWB/R2 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:Integrated Stepper Motor Driver with Embedded MCU and LIN Serial Communication
MM908E626AVEK 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 QUADSTEPPER W/MCU RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類(lèi)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
MM908E626AVPEK 功能描述:8位微控制器 -MCU MCU + LIN + MOTOR DRIVER 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
MM908E626AVPEKR2 功能描述:8位微控制器 -MCU 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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