MC33911G5ACR2 Freescale, MC33911G5ACR2 Datasheet - Page 69

• Manufacturer Part Number: MC33911G5ACR2
• Manufacturer: Freescale

Specifications of MC33911G5ACR2

• Turn Off Delay Time: 10us
• Number Of Drivers: 2
• Operating Temperature (min): -40C
• Operating Temperature (max): 125C
• Operating Temperature Classification: Automotive
• Lead Free Status / RoHS Status: Compliant

ANALOG CIRCUITRY
operating conditions. A fully configurable window watchdog
circuit will reset the connected MCU in case of an overflow.
wake-up sources to reactivate the device. Two analog / digital
inputs can be sensed or used as the wake-up source.
(VSENSE), the internal chip temperature (CTEMP) as well as
the motor current using an external sense resistor.)
HIGH SIDE DRIVER
with PWM capability is provided to drive small loads such as
status LED’s or small lamps.
power modes.
LOW SIDE DRIVERS
with PWM capability are provided to drive H-Bridge type
relays for power motor applications.
69
33911
FUNCTIONAL DESCRIPTION
FUNCTIONAL INTERNAL BLOCK DESCRIPTION
The 33911 is designed to operate under automotive
Two low-power modes are available with several different
The device is capable of sensing the supply voltage
One current and temperature protected high side driver
The driver can be configured for periodic sense during low-
Two current and temperature protected low side drivers
MC33911 - Functional Block Diagram
Analog Circutry
Window Watchdog
LS/HS - PMW Control
SPI Interface
WakeUp
FUNCTIONAL INTERNAL BLOCK DESCRIPTION
Figure 37. Functional Internal Block Diagram
Analog Output 0
LIN Interface / Control
Voltage & Temperature
Digital / Analog Input
MCU Interface and Output Control
Reset & IRQ Logic
Sense
MCU INTERFACE
through a standard 8-Bit SPI interface. Critical system events
such as low or high-voltage/temperature conditions as well as
over-current conditions in any of the driver stages can be
reported to the connected MCU via IRQ or RST.
controlled via the SPI register as well as PWMIN input.
configured via the SPI register and its communication is
driven through the RXD and TXD device pin.
pin.
VOLTAGE REGULATOR OUTPUTS
VDD main regulator output is designed to supply an MCU
with a precise 5.0 V.
LIN PHYSICAL LAYER INTERFACE
layer interface with selectable slew rate and various
diagnostic features.
The 33911 is providing its control and status information
Both low side and both high side driver outputs can be
The integrated LIN physical layer interface can be
All internal analog sources are multiplexed to the ANOUT0
One voltage regulators is implemented on the 33911. The
The 33911 provides a LIN 2.0 compatible LIN physical
Voltage Regulator
High Side Drivers
Low Side Driver
LIN Physical Layer
Interface LIN
LS1 - LS2
Analog Integrated Circuit Device Data
HS1
VDD
Freescale Semiconductor
Drivers