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參數(shù)資料
| 型號： | MM908E621ACDWB/R2 |
| 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, PLASTIC, SOIC-54 |
| 文件頁數(shù)： | 36/65頁 |
| 文件大?。?/td> | 1221K |
| 代理商： | MM908E621ACDWB/R2 |
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Analog Integrated Circuit Device Data
Freescale Semiconductor
41
908E621
FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
HBxOCF — Half-bridges Over-current Flag Bit
This read/write bit indicates that an over-current condition
on either the LS or the HS FET on HBx has occurred.
Clear HBxOCF and enable half-bridge by writing a logic [1]
to HBxOCF. Writing a logic [0] to HBxOCF has no effect.
Reset clears the HBxOCF bit.
1 = over-current condition on HBx occurred
0 = no over-current condition on HBx
High Side Drivers
The high side outputs are low resistive high side switches,
targeted for driving lamps. The high sides are protected
against over-temperature, over-current, and over-voltage/
under-voltage.
Figure 23. HS Circuitry
HIGH SIDE OPERATING MODES
The high side outputs are enabled if the PSON bit in the
System Control Register (SYSCTL) is set.
Each high side output is permanently switched on, if the
HSxON bit in the High Side Output Register (HSOUT) is set.
PWM control of the output is enabled, if the HSxPWM bit
High Side Output Register (HSOUT) is set. In this operating
mode, the high side MOSFET is on if the input PWM signal
(PWM pin) is high.
The following table shows the behavior of the high side
MOSFETs depending on the HSONx and PWMHSx bits.
VSUP
HSx
HS - Driver
charge pump
over-current protection
inrush current limiter
PWM
Control
on/off
Current
Limit
Status
PSON
HSxON
HSxPWM
PWM
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MM908E621ACPEK | 功能描述:8位微控制器 -MCU QUAD H-B/3-HS W/MCU & LI 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 |
| MM908E621ACPEKR2 | 功能描述:8位微控制器 -MCU QUAD HB AND TRIPLE HS 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 |
| MM908E622 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Integrated Quad Half-Bridge, Triple High-Side and EC Glass Driver with Embedded MCU and LIN for High End Mirror |
| MM908E622_08 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Integrated Quad Half-bridge, Triple High Side and EC Glass Driver with Embedded MCU and LIN for High End Mirror |
| MM908E622ACDR2 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Integrated Quad Half-Bridge, Triple High-Side and EC Glass Driver with Embedded MCU and LIN for High End Mirror |
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