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參數(shù)資料
| 型號： | MM908E622ACDWB/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)： | 36/66頁 |
| 文件大?。?/td> | 1277K |
| 代理商： | MM908E622ACDWB/R2 |
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Analog Integrated Circuit Device Data
Freescale Semiconductor
41
908E622
FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
The over / under-voltage status flags are cleared (and the
output reenabled) by writing a logic [1] to the LVIF / HVIF
flags in the Interrupt Flag Register, or by reset. Clearing this
flag has no effect as long as a high or low voltage condition
is present.
HIGH SIDE OVER-TEMPERATURE PROTECTION
The outputs are protected against over-temperature
conditions.
Each power output comprises two different temperature
thresholds.
The first threshold is the high temperature interrupt (HTI).
When the temperature reaches this threshold, the HTI bit in
the interrupt flag register is set. An interrupt will be generated,
When the HTIE bit in the interrupt mask register is set. In
addition, this interrupt can be used to automatically turn off
the power stages (all high sides, on half-bridges, just the high
side FETs). This shutdown can be enabled/disabled by the
HTIS0 Bit.
The high temperature interrupt flag (HTIE) is cleared (and
the outputs reenabled) by writing a logic [1] to the HTIF flag
in the Interrupt Status Register, or by reset. Clearing this flag
has no effect, as long as a high temperature condition is
present.
If the HTIS shutdown is disabled, a second threshold
(HTR) will be used to turn off all power stages (HB (all FETs),
HS, HVDD, EC, H0) in order to protect the device.
HIGH SIDE OVER-CURRENT PROTECTION
The HS outputs are protected against over-current. When
the over-current limit is reached, the output will be
automatically switched off and the over-current flag is set.
Due to the high inrush current of bulbs, a special feature
was implemented to avoid an over-current shutdown during
this inrush current. If a PWM frequency will be supplied to the
PWM input during the switch on of a bulb, the inrush current
will be limited to the over-current shutdown limit. This means,
if the current reaches the over-current shutdown, the high
side will be switched off, but each rising edge on the PWM
input will enable the driver again. The duty cycle supplied by
the MCU has no influence on the switch-on time of the high
side driver.
In order to distinguish between a shutdown due to an
inrush current or a real shutdown, the software checks to see
if the over-current status flag (HSxOCF) in the High Side
Status register is set beyond a certain period of time.
Figure 24. Inrush Current Limitation on HS Outputs
HS Current
HS Over-Current Shutdown Threshold
PWM Terminal
t
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MM908E622ACEK | 功能描述:8位微控制器 -MCU QUAD H-B TRIHS EC GLASS 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 |
| MM908E622ACPEK | 功能描述:IC QUAD HALF BRDG TRPL SW 54SOIC RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器 - 特定應(yīng)用 系列:- 產(chǎn)品變化通告:Product Discontinuation 26/Aug/2009 標(biāo)準(zhǔn)包裝:250 系列:- 應(yīng)用:網(wǎng)絡(luò)處理器 核心處理器:4Kc 程序存儲器類型:- 控制器系列:- RAM 容量:16K x 8 接口:以太網(wǎng)，UART，USB 輸入/輸出數(shù):- 電源電壓:1.8V, 3.3V 工作溫度:- 安裝類型:表面貼裝 封裝/外殼:208-LQFP 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:PG-LQFP-208 其它名稱:SP000314382 |
| MM908E622ACPEKR2 | 功能描述:8位微控制器 -MCU QUAD H-B, TRIHS, EC 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 |
| MM908E624 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:TRIPLE HIGH-SIDE SWITCH WITH EMBEDDED MCU AND LIN |
| MM908E624ACDWB | 功能描述:IC TRPL SWITCH MCU/LIN 54-SOIC RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器 - 特定應(yīng)用 系列:- 產(chǎn)品變化通告:Product Discontinuation 26/Aug/2009 標(biāo)準(zhǔn)包裝:250 系列:- 應(yīng)用:網(wǎng)絡(luò)處理器 核心處理器:4Kc 程序存儲器類型:- 控制器系列:- RAM 容量:16K x 8 接口:以太網(wǎng)，UART，USB 輸入/輸出數(shù):- 電源電壓:1.8V, 3.3V 工作溫度:- 安裝類型:表面貼裝 封裝/外殼:208-LQFP 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:PG-LQFP-208 其它名稱:SP000314382 |
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