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Moteur de recherche de fiches techniques de composants électroniques |
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MC34912BACR2 Fiches technique(PDF) 1 Page - Freescale Semiconductor, Inc |
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MC34912BACR2 Fiches technique(HTML) 1 Page - Freescale Semiconductor, Inc |
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1 / 47 page  Document Number: MC33912 Rev. 4.0, 2/2008 Freescale Semiconductor Advance Information * 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. LIN System Basis Chip with DC Motor Pre-driver and Current Sense 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. 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. 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). The 33912 is compatible with LIN Protocol Specification 2.0. Features • 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 • 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 Figure 1. 33912 Simplified Application Diagram 33912 ORDERING INFORMATION Device Temperature Range (TA) Package MC33912BAC/R2 -40°C to 125°C 32-LQFP MC34912BAC/R2 -40°C to 85°C AC SUFFIX (Pb-FREE) 98ASH70029A 32-PIN LQFP SYSTEM BASIS CHIP WITH LIN 2ND GENERATION M MCU 33912 LIN INTERFACE VS1 VS2 VSENSE HS1 L1 L2 L3 L4 LS1 LS2 ISENSEH ISENSEL HVDD HS2 WDCONF LIN VDD PWMIN ADOUT0 ADOUT1 MOSI MISO SCLK CS RXD TXD IRQ RST VBAT |
Numéro de pièce similaire - MC34912BACR2 |
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Description similaire - MC34912BACR2 |
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