參數(shù)資料
型號(hào)： 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)： 35/66頁
文件大?。?/td> 1277K
代理商： MM908E622ACDWB/R2
Analog Integrated Circuit Device Data
40
Freescale Semiconductor
908E622
FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
Figure 23. HS Circuitry
HIGH SIDE OPERATING MODES
The high sides 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.
Table 10 shows the behavior of the high side MOSFETs
depending on the HSONx and PWMHSx bits.
Table 10. High-Side Configuration Bits
High Side Over-voltage / Under-voltage Protection
The outputs are protected against under / over-voltage
conditions. This protection is done by the low and high
voltage interrupt circuitry. If an over /under-voltage condition
is detected (LVIF / HVIF), and the VIS Bit is in the High Side
Status Register is cleared, the output is disabled.
VSUP
HSx
HS - Driver
charge pump
over-current protection
inrush current limiter
PWM
Control
on/off
Current
Limit
Status
PSON
HSxON
HSxPWM
PWM
HSxPWM
HSxON
Mode
00
High side MOSFET off
01
High side MOSFET on, in case of over-
current the over-current flag (HSxOCF)
is set and the high side MOSFET is
turned off
10
In this mode, the PWM duty cycle is
either controlled by the PWM input
signal, or when the over-current
shutdown value is reached by the part
itself.
Without reaching the over-current
shutdown, the high side driver is
directly driven from the PWM input
signal. If the Input signal is high, the
output is on. If low, the output is off
(PWM control).
If the current reaches the over-current
shutdown value, the high side will be
automatically turned off. With the next
rising edge of the PWM input signal, the
output will turn on again (current
limitation). The HSxOCF bit will be set,
software has to distinguish between an
inrush current, and a real short on the
output.
11
High side MOSFET is switched on and
the inrush current limitation is enabled.
This means the high side will start
automatically with a current limitation
around the over-current shutdown
threshold. (PWM signal must be
applied, see Figure 24)
If the high side enters current limitation
the HSxOCF bit is set, but the output is
not disabled. The software needs to
distinguish between an inrush current
and a real short on the output.
HSxPWM
HSxON
Mode
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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(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
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(chǔ)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(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
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(chǔ)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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