參數(shù)資料
型號： MM908E626AVDWB
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDSO54
封裝： 17.90 X 7.50 MM, 0.65 MM PITCH, LEAD FREE, PLASTIC, SOIC-54
文件頁數(shù)： 22/44頁
文件大小： 833K
代理商： MM908E626AVDWB
Analog Integrated Circuit Device Data
Freescale Semiconductor
29
908E626
FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
Figure 15. BEMF Signal Generation
HALF-BRIDGE OVERTEMPERATURE
PROTECTION
The half-bridge outputs provide an over-temperature pre-
warning with the HTF in the Interrupt Flag Register (IFR). In
order to protect the outputs against over-temperature, the
High Temperature Reset must be enabled. If this value is
reached, the part generates a reset and disables all power
outputs.
HALF-BRIDGE OVER-CURRENT PROTECTION
The half-bridges are protected against short to GND, short
to VSUP, and load shorts.
In the event an over-current on the high side is detected,
the high side MOSFETs on all HB high side MOSFETs are
switched off automatically. In the event an over-current on the
low side is detected, all HB low side MOSFETs are switched
off automatically. In both cases, the over-current status flag
HB_OCF in the System Status Register (SYSSTAT) is set.
The over-current status flag is cleared (and the outputs re-
enabled) by writing a logic [1] to the HB_OCF flag in the
System Status Register or by reset.
HALF-BRIDGE OVER-VOLTAGE/UNDER-
VOLTAGE
The half-bridge outputs are protected against under-
voltage and over-voltage conditions. This protection is done
by the low and high voltage interrupt circuitry. If one of these
flags (LVF, HVF) is set, the outputs are automatically
disabled.
The over-voltage/under-voltage status flags are cleared
(and the outputs re-enabled) by writing a logic [1] to the LVF/
HVF flags in the Interrupt Flag Register or by reset. Clearing
this flag is useless as long as a high or low voltage condition
is present.
Half-bridge Control Register (HBCTL)
Bit7
6
5
4
3
2
1
Bit0
Read
Write
Reset
OFC_EN—H-bridge Offset Chopping Enable Bit
This read/write bit enables offset chopping. Reset clears
the OFC_EN bit.
1 = Offset chopping enabled.
0 = Offset chopping disabled.
Coil Current
Voltage on
1
BEMF Signal
Register Name and Address: HBCTL - $02
OFC_EN
CSA
0
CLS2
CLS1
CLS0
0
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MM908E626AVDWB/R2 制造商:FREESCALE 制造商全稱: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/運動/點火控制器和驅(qū)動器 QUADSTEPPER W/MCU 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
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 最大時鐘頻率:50 MHz 程序存儲器大小: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 最大時鐘頻率:50 MHz 程序存儲器大小: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
MM908E626R2 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Integrated Stepper Motor Driver with Embedded MCU and LIN Serial Communication
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