MC33742SDW Freescale Semiconductor, MC33742SDW Datasheet - Page 25

• Manufacturer Part Number: MC33742SDW
• Description: IC SYSTEM BASE W/LIN 28-SOIC
• Manufacturer: Freescale Semiconductor

Specifications of MC33742SDW

• Applications: Automotive
• Interface: SPI
• Voltage - Supply: 5.5 V ~ 18 V
• Package / Case: 28-SOIC (7.5mm Width)
• Mounting Type: Surface Mount
• For Use With: KIT33742DWEVB - KIT FOR 33742 SBC WITH EHSCAN
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

OUTPUTS
5.0V LINEAR REGULATOR (LDO)
5.0V at 200mA. The associated monitoring circuit provides
detection of under-voltage, over-current, and short-circuit
conditions, as well as over-temperature and a reset function.
5.0V REGULATOR BASE PNP DRIVE
an external series pass transistor (PNP type). The 5.0V
output tracks the V1 regulator
HIGH SIDE SWITCH
MOSFET driver connected to the VSUP pin. The output is
protected against short-circuit conditions and provides over-
temperature shutdown.
CAN PHYSICAL LAYER INTERFACE
RXD pins, from/to the MCU, and the CANL & CANH pins of
the CAN physical interface. The various modes of the CAN
interface are controlled through the SPI control registers.
Analog Integrated Circuit Device Data
Freescale Semiconductor
This low dropout linear regulator (V1) outputs a regulated
The V2 linear regulator control circuitry provides drive for
The high switch provides a 2.0 Ohm (typ.) RDS
This circuitry provides communication between the TXD &
MC33742 - Functional Block Diagram
CAN Interface / Control
Integrated Supply
Analog Circuitry
SPI Interface
FUNCTIONAL INTERNAL BLOCK DESCRIPTION
Integrated Supply
Analog Circuitry
MCU Interface
ON
Reset & INT
INTEGRATED SUPPLY
VSUP CONTROL & MONITOR
as vehicle jump-start (27V) and load dump (40V). If the V
voltage falls below 3.0V (or a 6.0V warning interrupt), an
under-voltage detection is reported.
ANALOG CIRCUITRY
OSCILLATOR
reset, watchdog, cyclic wake-up, filtering time, etc.
MODE CONTROL
SPI control registers. There are also several special modes
possible.
PROGRAMMABLE WAKE-UP
control register bits to determine the wake-up conditions and
the reaction of the IC. They can be connected to contact
switches or other ICs.
This circuitry protects the IC from transient conditions such
This circuit is used to generate the internal timings for
The 4 operating modes of the IC are controlled through the
The 4 inputs are used in conjunction with various SPI
MCU Interface
Outputs
FUNCTIONAL INTERNAL BLOCK DESCRIPTION
CAN Physical Layer
Regulator (LDO)
Base PNP Drive
5.0V Regulator
5.0V Linear
Outputs
Interface
High-side
Switch
FUNCTIONAL DESCRIPTION
33742
SUP
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