MM908E625ACDWB/R2 Motorola, MM908E625ACDWB/R2 Datasheet - Page 17

• Manufacturer Part Number: MM908E625ACDWB/R2
• Description: Integrated Quad Half H-Bridge with Power Supply / Embedded MCU / and LIN Serial Communication
• Manufacturer: Motorola

ADC Reference Terminals (VREFL and VREFH)
the ADC. It is recommended that a high-quality ceramic
decoupling capacitor be placed between these terminals.
and should be tied to the same potential as VDDA via separate
traces. VREFL is the low reference supply for the ADC and
should be tied to the same potential as VSS via separate traces.
ADC Supply Terminals (VDDA and VSSA)
analog-to-digital converter (ADC). It is recommended that a
high-quality ceramic decoupling capacitor be placed between
these terminals.
tied to the same potential as EVDD via separate traces. VSSA
is the ground terminal for the ADC and should be tied to the
same potential as EVSS via separate traces.
Interrupts
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
supply voltage, V
threshold, it will set the LVI flag. If the low-voltage interrupt is
enabled, an interrupt will be initiated.
high-side driver are switched off. All other modules are not
influenced by this interrupt.
High-Voltage Interrupt
supply voltage, V
threshold, it will set the HVI flag. If the High-Voltage Interrupt is
enabled, an interrupt will be initiated.
high-side driver are switched off. All other modules are not
influenced by this interrupt.
MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA
VREFL and VREFH are the reference voltage terminals for
Important VREFH is the high reference supply for the ADC
For details refer to the 68HC908EY16 datasheet.
VDDA and VSSA are the power supply terminals for the
Important VDDA is the supply for the ADC and should be
For details refer to the 68HC908EY16 datasheet.
The 908E625 has seven different interrupt sources as
The Low-Voltage Interrupt (LVI) is related to the external
With LVI the H-Bridges (high-side MOSFET only) and the
During STOP mode the LVI circuitry is disabled.
The High-Voltage Interrupt (HVI) is related to the external
With HVI the H-Bridges (high-side MOSFET only) and the
During STOP mode the HVI circuitry is disabled.
SUP
SUP
. If this voltage falls below the LVI
. If this voltage rises above the HVI
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
ANALOG DIE DESCRIPTION
MCU Power Supply Terminals (EVDD and EVSS)
terminals. The MCU operates from a single power supply.
duration current demands on the power supply. To prevent
noise problems, take special care to provide power supply
bypassing at the MCU.
Test Terminal (FLSVPP)
Exposed Pad Terminal
conducts
performance the pad must be soldered to the PCB board. It is
recommended that the pad be connected to the ground
potential.
High-Temperature Interrupt
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.
Autonomous Watchdog Interrupt (AWD)
LIN Interrupt
generate an interrupt. During STOP mode this interrupt will
initiate a system wake-up.
Hall-Effect Sensor Input Terminal Interrupt
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
(H1:H3) on page
Overcurrent Interrupt
side or the HVDD output is detected and the OCIE bit is set and
an interrupt generated.
EVDD and EVSS are the power supply and ground
Fast signal transitions on MCU terminals place high, short-
For details refer to the 68HC908EY16 datasheet.
For test purposes only. Do not connect in the application.
The exposed pad terminal on the bottom side of the package
The High-Temperature Interrupt (HTI) is generated by the
During STOP mode the HTI circuitry is disabled.
Refer to Autonomous Watchdog (AWD) on page 36.
If the LINIE bit is set, a falling edge on the LIN terminal will
If the PHIE bit is set, the enabled Hall-effect sensor input
If an overcurrent condition on a half-bridge occurs, the high-
heat from the chip to the PCB board. For thermal
25).
Hall-Effect Sensor Input Terminals
908E625
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