參數(shù)資料
型號(hào)： 908E625
廠商： 飛思卡爾半導(dǎo)體(中國(guó))有限公司
英文描述： Integrated Quad Half H-Bridge with Power Supply, Embedded MCU, and LIN Serial Communication
中文描述： 綜合四半僅符合電源橋，嵌入式微控制器和LIN串行通信
文件頁(yè)數(shù)： 18/48頁(yè)
文件大?。?/td> 615K
代理商： 908E625
Analog Integrated Circuit Device Data
Freescale Semiconductor
18
908E625
FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
INTERRUPTS
The 908E625 has seven different interrupt sources as
described in the following paragraphs. The interrupts can be
disabled or enabled via the SPI. After reset all interrupts are
automatically disabled.
LOW-VOLTAGE INTERRUPT
The Low-Voltage Interrupt (LVI) is related to the external
supply voltage, V
SUP
. If this voltage falls below the LVI
threshold, it will set the LVI flag. If the low-voltage interrupt is
enabled, an interrupt will be initiated.
With LVI the H-Bridges (high-side MOSFET only) and the
high-side driver are switched off. All other modules are not
influenced by this interrupt.
During STOP mode the LVI circuitry is disabled.
HIGH-VOLTAGE INTERRUPT
The High-Voltage Interrupt (HVI) is related to the external
supply voltage, V
SUP
. If this voltage rises above the HVI
threshold, it will set the HVI flag. If the High-Voltage Interrupt
is enabled, an interrupt will be initiated.
With HVI the H-Bridges (high-side MOSFET only) and the
high-side driver are switched off. All other modules are not
influenced by this interrupt.
During STOP mode the HVI circuitry is disabled.
HIGH-TEMPERATURE INTERRUPT
The High-Temperature Interrupt (HTI) is generated by the
on-chip temperature sensors. If the chip temperature is
above the HTI threshold, the HTI flag will be set. If the High-
Temperature Interrupt is enabled, an interrupt will be
initiated.
During STOP mode the HTI circuitry is disabled.
AUTONOMOUS WATCHDOG INTERRUPT (AWD)
Refer to Autonomous Watchdog
Autonomous Watchdog
(AWD)
.
LIN INTERRUPT
If the LINIE bit is set, a falling edge on the LIN terminal will
generate an interrupt. During STOP mode this interrupt will
initiate a system wake-up.
HALL-EFFECT SENSOR INPUT TERMINAL
INTERRUPT
If the PHIE bit is set, the enabled Hall-Effect Sensor input
terminals H1:H3 can generate an interrupt if a current above
the threshold is detected. During STOP mode this interrupt,
combined with the cyclic wake-up feature of the AWD, can
wake up the system. Refer to terminal
Hall-Effect Sensor
Input Terminals (H1:H3)
.
OVERCURRENT INTERRUPT
If an overcurrent condition on a half-bridge occurs, the
high-side or the HVDD output is detected and the OCIE bit is
set and an interrupt generated.
SYSTEM WAKE-UP
System wake-up can be initiated by any of four events:
A falling edge on the LIN terminal
A wake-up signal from the AWD
A Logic [1] at Hall-effect sensor input terminal during
cyclic check via AWD
An LVR condition
If one of these wake-up events occurs and the interrupt
mask bit for this event is set, the interrupt will wake-up the
microcontroller as well as the main voltage regulator (MREG)
(
Figure 8
).
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
908E625_07 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:Integrated Quad Half H-Bridge with Power Supply, Embedded MCU, and LIN Serial Communication
908E625_10 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:Integrated Quad Half H-Bridge with Power Supply, Embedded MCU, and LIN Serial Communication
908E626 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
908E626_08 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
908E626_09 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
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