Design Files
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LIN SBC with DC Motor Predriver 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 - 50mA 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 and 2.1 ('G5AC) 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, 2.1 ('G5AC) and SAEJ2602-2 ('G5AC).
Freescale MC33912 Product Image
Product Details
Block Diagram
Features
Key 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)
- IEC61000-4-2 ESD performance on LIN and Wake up inputs ('G5AC)
- EMC immunity against RF disturbance and Transient and Conducted Emissions ('G5AC)
Product Longevity Program
- This product is included in the NXP Product Longevity Program ensuring a stable supply of products for your embedded designs. The MC33912 is included in the 15-year program
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Documentation
Quick reference to our documentation types.
1-5 of 9 documents
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Application Note
AN4388: Quad Flat Package (QFP) – Application NoteFeatured
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Application Note
AN5063, MC33910/11/12 Filtering Capacitor for VS1 - Application Note
Design Resources
Hardware
Quick reference to our
board types.
3 hardware offerings
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Evaluation and Development BoardsEvaluation Kit - USB-SPI Interface, MC68HC908JW32, DongleFeatured
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Evaluation and Development BoardsEvaluation Kit - 33912, SBC, DC Motor Pre-DriverFeatured
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Evaluation and Development BoardsEvaluation Kit - 33912, LIN SBC, DC Motor Pre-DriverFeatured
Software
Quick reference to our software types.
1 software file
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Configuration Tools
SPI Generator (SPIGen) Software
Note: For better experience, software downloads are recommended on desktop.
Engineering Services
To get further assistance directly from NXP, please see our Engineering Services.
2 engineering services
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Independent Design House (IDH)
Hardware/Software Engineering Services
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Original Design Manufacturer (ODM)
Hardware and Software Engineering Services
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