参数资料
型号: MC33742DWR2
厂商: Freescale Semiconductor
文件页数: 17/71页
文件大小: 0K
描述: IC SYSTEM BASE W/LIN 28-SOIC
标准包装: 1,000
应用: 自动
接口: SPI
电源电压: 5.5 V ~ 18 V
封装/外壳: 28-SOIC(0.295",7.50mm 宽)
供应商设备封装: 28-SOIC W
包装: 带卷 (TR)
安装类型: 表面贴装
配用: KIT33742DWEVB-ND - KIT FOR 33742 SBC WITH EHSCAN
Analog Integrated Circuit Device Data
24
Freescale Semiconductor
33742
FUNCTIONAL DESCRIPTION
FUNCTIONAL INTERNAL BLOCK DESCRIPTION
FUNCTIONAL INTERNAL BLOCK DESCRIPTION
OUTPUTS
5.0 V LINEAR REGULATOR (LDO)
This low dropout linear regulator (V1) outputs a regulated 5.0 V at 200 mA. The associated monitoring circuit provides
detection of under-voltage, over-current, and short-circuit conditions, as well as over-temperature and a reset function.
5.0 V REGULATOR BASE PNP DRIVE
The V2 linear regulator control circuitry provides drive for an external series pass transistor (PNP type). The 5.0 V output tracks
the V1 regulator
HIGH SIDE SWITCH
The high switch provides a 2.0 ohm (typ.) RDSON MOSFET driver connected to the VSUP pin. The output is protected against
short-circuit conditions and provides over-temperature shutdown.
CAN PHYSICAL LAYER INTERFACE
This circuitry provides communication between the TXD & 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.
INTEGRATED SUPPLY
VSUP CONTROL & MONITOR
This circuitry protects the IC from transient conditions such as vehicle jump-start (27 V) and load dump (40 V). If the VSUP
voltage falls below 3.0 V (or a 6.0 V warning interrupt), an under-voltage detection is reported.
MC33742 - Functional Block Diagram
Analog Circuitry
MCU Interface
Outputs
Integrated Supply
Integrated Supply
VSUP Control & Monitor
Analog Circuitry
Mode Control
MCU Interface
SPI Interface
CAN Interface / Control
Reset & INT
Outputs
CAN Physical Layer
Interface
5.0V Linear
Regulator (LDO)
High-side
Switch
5.0V Regulator
Base PNP Drive
Oscillator
Watchdog Timer
Programmable Wake-up
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