Document Number: MC33912
Rev. 4.0, 2/2008
Freescale Semiconductor
Advance Information
LIN System Basis Chip with DC
Motor Pre-driver and Current
Sense
33912
The 33912 is a Serial Peripheral Interface (SPI) -controlled System
Basis Chip (SBC), combining many frequently used functions in an
MCU-based system, plus a Local Interconnect Network (LIN)
transceiver. The 33912 has a 5.0V - 60mA low dropout regulator with
full protection and reporting features. The device provides full SPI-
readable diagnostics and a selectable timing watchdog for detecting
errant operation. The LIN Protocol Specification 2.0 compliant LIN
transceiver has waveshaping circuitry that can be disabled for higher
data rates.
SYSTEM BASIS CHIP WITH LIN
2ND GENERATION
Two 60mA high side switches and two 160mA low side switches
with output protection are available for driving resistive and inductive
loads. All outputs can be pulse-width modulated (PWM). Four high
voltage inputs are available for use in contact monitoring, or as external
wake-up inputs. These inputs can be used as high voltage Analog
Inputs. The voltage on these pins is divided by a selectable ratio and
available via an analog multiplexer.
AC SUFFIX (Pb-FREE)
98ASH70029A
The 33912 has three main operating modes: Normal (all functions
available), Sleep (VDD off, wake-up via LIN, wake-up inputs (L1-L4),
cyclic sense and forced wake-up), and Stop (VDD on with limited
current capability, wake-up via CS, LIN bus, wake-up inputs, cyclic
sense, forced wake-up and external reset).
32-PIN LQFP
The 33912 is compatible with LIN Protocol Specification 2.0.
ORDERING INFORMATION
Temperature
Features
Device
Package
Range (T )
A
• Full-duplex SPI interface at frequencies up to 4MHz
• LIN transceiver capable of up to 100kbps with wave shaping
• Two 60mA high side and two 160mA low side protected switches
• Four high voltage analog/logic Inputs
MC33912BAC/R2
MC34912BAC/R2
-40°C to 125°C
-40°C to 85°C
32-LQFP
• Configurable window watchdog
• 5.0V low drop regulator with fault detection and low voltage reset (LVR) circuitry
• Current sense module
• Switched/protected 5.0V output (used for Hall sensors)
• Pb-free packaging designated by suffix code AC
33912
V
BAT
VSENSE
VS1
VS2
HS1
L1
L2
L3
L4
LIN INTERFACE
LIN
VDD
PWMIN
ADOUT0
ADOUT1
MOSI
MISO
SCLK
CS
RXD
TXD
IRQ
LS1
M
LS2
ISENSEH
MCU
ISENSEL
HVDD
HS2
RST
WDCONF
Figure 1. 33912 Simplified Application Diagram
* This document contains certain information on a new product.
Specifications and information herein are subject to change without notice.
© Freescale Semiconductor, Inc., 2007. All rights reserved.
5秒后页面跳转
全球首块英伟达H200交付 黄仁勋“送货上门”
常用8脚开关电源芯片型号大全
74HC04芯片引脚图及功能、应用电路图讲解
CR6842芯片参数、引脚配置、应用电路图详解
微信公众号
抖音公众号
浙公网安备 33010502006866号 浙ICP备10014259号-119
营业执照ICP证
数据手册
如果您发现信息不准确，
