MC33812 | Multifunctional Ignition and Injector Driver | NXP Semiconductors

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Consumer

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Multifunctional Ignition and Injector Driver

MC33812 Active

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The NXP® MC33812 is an engine control analog power IC intended for motorcycle and other single/dual cylinder small engine control applications.

  • Consists of three integrated low side drivers, one pre-driver, a +5.0 V, voltage pre-regulator, an MCU watchdog circuit, an ISO 9141 K-Line interface, and a parallel interface for MCU communication
  • The three low side drivers are provided for driving a fuel injector, a lamp or LED, and a relay or other load
  • The pre-driver is intended to drive either an Insulated Gate Bipolar Transistor (IGBT) or a bipolar Darlington transistor to control an ignition coil

Block Diagram

NXP MC33812 Low Side Switch Block Diagram

NXP MC33812 Low Side Switch Block Diagram
Get diagram PDF

Features

Key Features

  • Designed to operate over the range of ~4.7 V ≤ VPWR ≤ 36 V
  • Fuel Injector driver - Current Limit - 4.0 A Typical
  • Ignition pre-driver can drive IGBT or Darlington bipolar junction transistors
  • Ignition pre-driver has independent high and low side outputs
  • Relay driver - Current Limit - 4.0 A Typical
  • Lamp driver- Current Limit - 1.5 A Typical
  • All external outputs protected against short to battery, over-current
  • Ignition and other drivers protected against over-temperature
  • Interfaces directly to MCU using 5.0 V parallel interface
  • VCC voltage pre-regulator provides +5.0 V power for the MCU
  • MCU Power On RESET generator
  • MCU watchdog timer circuit with parallel refresh/time setting line
  • Independent fault annunciation outputs for ignition and injection
  • ISO-9141 K-Line transceiver for communicating diagnostic messages

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N true 0 PSPMC33812en 7 Application Note Application Note t789 2 Data Sheet Data Sheet t520 1 Fact Sheet Fact Sheet t523 1 Selector Guide Selector Guide t528 1 User Guide User Guide t792 2 en_US 1 1 6.0 English The 33812 is an engine control analog power IC intended for motorcycle and other single cylinder small engine control applications. The IC consists of three integrated low side drivers, one pre-driver, a +5 Volt voltage pre-regulator, an MCU watchdog circuit, an ISO 9141 K-Line interface,and a parallel interface for MCU communication. The three low side drivers are provided for driving a fuel injector, a lamp or LED, and a relay or other load. The pre-driver is intended to drive either an IGBT or a bipolar 1250008239870721931234 PSP 687.4 KB None None documents None 1250008239870721931234 /docs/en/data-sheet/MC33812.pdf 687443 /docs/en/data-sheet/MC33812.pdf MC33812 N N 2016-10-31 Multifunctional Ignition and Injector Driver /docs/en/data-sheet/MC33812.pdf /docs/en/data-sheet/MC33812.pdf Data Sheet N Y 980000996212993340 2022-12-07 pdf N en Apr 14, 2016 Data Sheet t520 Data Sheet Data Sheet Y N Multifunctional Ignition and Injector Driver false en_US en Application Note Application Note 2 2 3.0 English This application note provides guidelines for handling and assembly of SOIC package during Printed Circuit Board (PCB) assembly. 10jsBvfc PSP 3.5 MB None None documents None 10jsBvfc /docs/en/application-note/AN2409.pdf 3536520 /docs/en/application-note/AN2409.pdf AN2409 documents N N 2016-10-31 AN2409, Small Outline Integrated Circuit (SOIC) Package - Application Note /docs/en/application-note/AN2409.pdf /docs/en/application-note/AN2409.pdf Application Note N 645036621402383989 2024-01-19 pdf N en Oct 21, 2014 645036621402383989 Application Note Y N AN2409, Small Outline Integrated Circuit (SOIC) Package - Application Note 3 1.0 English The MC33781 and MC33784 together constitute NXP Semiconductors's implementation of the Distributed System Interface (DSI) Bus Standard, Version 2.02. 1225311007711718167766 PSP 1.0 MB None None documents None 1225311007711718167766 /docs/en/application-note/AN3670.pdf 1013814 /docs/en/application-note/AN3670.pdf AN3670 documents N N 2016-10-31 AN3670, Implementing a DSI Network Using the MC33781 and the MC33784 /docs/en/application-note/AN3670.pdf /docs/en/application-note/AN3670.pdf Application Note N 645036621402383989 2024-01-19 pdf N en Oct 29, 2008 645036621402383989 Application Note Y N AN3670, Implementing a DSI Network Using the MC33781 and the MC33784 User Guide User Guide 2 4 3.0 English NXP<sup>&#174;</sup> Small Engine Reference Design Kit for the MC33812 1250884878187706158769 PSP 3.1 MB None None documents None 1250884878187706158769 /docs/en/user-guide/KT33812ECUUG.pdf 3091188 /docs/en/user-guide/KT33812ECUUG.pdf KT33812ECUUG documents N N 2016-10-31 KIT33812ECUEVME, Small Engine Reference Design User Manual - User Guide /docs/en/user-guide/KT33812ECUUG.pdf /docs/en/user-guide/KT33812ECUUG.pdf User Guide N 132339537837198660 2023-06-19 pdf N en Nov 17, 2009 132339537837198660 User Guide Y N KIT33812ECUEVME, Small Engine Reference Design User Manual - User Guide 5 2.0 English KIT33812EKEVBE Evaluation Board (EVB) is an easy-to-use circuit board used to exercise all the functions of the MC33812 Multifunctional Ignition and Injector Driver. 1250701262896720013472 PSP 1.3 MB None None documents None 1250701262896720013472 /docs/en/user-guide/KT33812UG.pdf 1260175 /docs/en/user-guide/KT33812UG.pdf KT33812UG documents N 2009-08-19 KIT33812EKEVBE, Evaluation Board - User Guide /docs/en/user-guide/KT33812UG.pdf /docs/en/user-guide/KT33812UG.pdf User Guide N 132339537837198660 2022-12-07 pdf en Jul 15, 2009 132339537837198660 User Guide Y N KIT33812EKEVBE, Evaluation Board - User Guide Fact Sheet Fact Sheet 1 6 1 English The small-engine portfolio offers 3 easy-to-use engine control devices to deliver a cost-optimized IC solution for managing one- and two-cylinder engines. 1475854249408730124078 PSP 521.6 KB None None documents None 1475854249408730124078 /docs/en/fact-sheet/SMALLENGINELF.pdf 521575 /docs/en/fact-sheet/SMALLENGINELF.pdf SMALLENGINELF documents N N 2016-11-09 SMALLENGINELF, Small engine leaflet - Fact sheet /docs/en/fact-sheet/SMALLENGINELF.pdf /docs/en/fact-sheet/SMALLENGINELF.pdf Fact Sheet N 736675474163315314 2022-12-07 pdf N en Oct 3, 2016 736675474163315314 Fact Sheet Y N SMALLENGINELF, Small engine leaflet - Fact sheet Selector Guide Selector Guide 1 7 3 Chinese 1404924651029729642615zh PSP 1.2 MB None None documents None 1404924651029729642615 /docs/zh/product-selector-guide/INDCONTANLPRDFL.pdf 1202686 /docs/zh/product-selector-guide/INDCONTANLPRDFL.pdf INDCONTANLPRDFL documents N N 2016-10-31 Analog Automotive and Industrial Selector Guide /docs/zh/product-selector-guide/INDCONTANLPRDFL.pdf /docs/zh/product-selector-guide/INDCONTANLPRDFL.pdf Selector Guide N 553557935274807777 2025-01-05 zh Sep 18, 2014 553557935274807777 Selector Guide Y N 面向工业市场的模拟产品 - 简介 12 English For system designers who want more efficient motor operation with variable speed and sensorless control, NXP offers H-bridge, brushed and brushless DC motor drivers required to complete system design. 1404924651029729642615 PSP 1.2 MB None None documents None 1404924651029729642615 /docs/en/product-selector-guide/INDCONTANLPRDFL.pdf 1202686 /docs/en/product-selector-guide/INDCONTANLPRDFL.pdf INDCONTANLPRDFL documents N N 2016-10-31 Analog Automotive and Industrial Selector Guide /docs/en/product-selector-guide/INDCONTANLPRDFL.pdf /docs/en/product-selector-guide/INDCONTANLPRDFL.pdf Selector Guide N 553557935274807777 2025-01-05 pdf N en Jan 29, 2021 553557935274807777 Selector Guide Y N Analog Automotive and Industrial Selector Guide false 0 MC33812 downloads en true 1 Y PSP Y Y Application Note 2 /docs/en/application-note/AN2409.pdf 2016-10-31 10jsBvfc PSP 2 Oct 21, 2014 Application Note This application note provides guidelines for handling and assembly of SOIC package during Printed Circuit Board (PCB) assembly. None /docs/en/application-note/AN2409.pdf English documents 3536520 None 645036621402383989 2024-01-19 N /docs/en/application-note/AN2409.pdf AN2409, Small Outline Integrated Circuit (SOIC) Package - Application Note /docs/en/application-note/AN2409.pdf documents 645036621402383989 Application Note N en None Y pdf 3.0 N N AN2409, Small Outline Integrated Circuit (SOIC) Package - Application Note 3.5 MB AN2409 N 10jsBvfc /docs/en/application-note/AN3670.pdf 2016-10-31 1225311007711718167766 PSP 3 Oct 29, 2008 Application Note The MC33781 and MC33784 together constitute NXP Semiconductors's implementation of the Distributed System Interface (DSI) Bus Standard, Version 2.02. None /docs/en/application-note/AN3670.pdf English documents 1013814 None 645036621402383989 2024-01-19 N /docs/en/application-note/AN3670.pdf AN3670, Implementing a DSI Network Using the MC33781 and the MC33784 /docs/en/application-note/AN3670.pdf documents 645036621402383989 Application Note N en None Y pdf 1.0 N N AN3670, Implementing a DSI Network Using the MC33781 and the MC33784 1.0 MB AN3670 N 1225311007711718167766 Data Sheet 1 /docs/en/data-sheet/MC33812.pdf 2016-10-31 1250008239870721931234 PSP 1 Apr 14, 2016 Data Sheet Data Sheet The 33812 is an engine control analog power IC intended for motorcycle and other single cylinder small engine control applications. The IC consists of three integrated low side drivers, one pre-driver, a +5 Volt voltage pre-regulator, an MCU watchdog circuit, an ISO 9141 K-Line interface,and a parallel interface for MCU communication. The three low side drivers are provided for driving a fuel injector, a lamp or LED, and a relay or other load. The pre-driver is intended to drive either an IGBT or a bipolar None /docs/en/data-sheet/MC33812.pdf English 687443 None Data Sheet 2022-12-07 N /docs/en/data-sheet/MC33812.pdf Multifunctional Ignition and Injector Driver /docs/en/data-sheet/MC33812.pdf documents 980000996212993340 Data Sheet N Y en None Y t520 pdf 6.0 N N Multifunctional Ignition and Injector Driver 687.4 KB MC33812 N 1250008239870721931234 Fact Sheet 1 /docs/en/fact-sheet/SMALLENGINELF.pdf 2016-11-09 1475854249408730124078 PSP 6 Oct 3, 2016 Fact Sheet The small-engine portfolio offers 3 easy-to-use engine control devices to deliver a cost-optimized IC solution for managing one- and two-cylinder engines. None /docs/en/fact-sheet/SMALLENGINELF.pdf English documents 521575 None 736675474163315314 2022-12-07 N /docs/en/fact-sheet/SMALLENGINELF.pdf SMALLENGINELF, Small engine leaflet - Fact sheet /docs/en/fact-sheet/SMALLENGINELF.pdf documents 736675474163315314 Fact Sheet N en None Y pdf 1 N N SMALLENGINELF, Small engine leaflet - Fact sheet 521.6 KB SMALLENGINELF N 1475854249408730124078 Selector Guide 1 /docs/en/product-selector-guide/INDCONTANLPRDFL.pdf 2016-10-31 1404924651029729642615 PSP 7 Jan 29, 2021 Selector Guide For system designers who want more efficient motor operation with variable speed and sensorless control, NXP offers H-bridge, brushed and brushless DC motor drivers required to complete system design. None /docs/en/product-selector-guide/INDCONTANLPRDFL.pdf English documents 1202686 None 553557935274807777 2025-01-05 N /docs/en/product-selector-guide/INDCONTANLPRDFL.pdf Analog Automotive and Industrial Selector Guide /docs/en/product-selector-guide/INDCONTANLPRDFL.pdf documents 553557935274807777 Selector Guide N en None Y pdf 12 N N Analog Automotive and Industrial Selector Guide 1.2 MB INDCONTANLPRDFL N 1404924651029729642615 User Guide 2 /docs/en/user-guide/KT33812ECUUG.pdf 2016-10-31 1250884878187706158769 PSP 4 Nov 17, 2009 User Guide NXP<sup>&#174;</sup> Small Engine Reference Design Kit for the MC33812 None /docs/en/user-guide/KT33812ECUUG.pdf English documents 3091188 None 132339537837198660 2023-06-19 N /docs/en/user-guide/KT33812ECUUG.pdf KIT33812ECUEVME, Small Engine Reference Design User Manual - User Guide /docs/en/user-guide/KT33812ECUUG.pdf documents 132339537837198660 User Guide N en None Y pdf 3.0 N N KIT33812ECUEVME, Small Engine Reference Design User Manual - User Guide 3.1 MB KT33812ECUUG N 1250884878187706158769 /docs/en/user-guide/KT33812UG.pdf 2009-08-19 1250701262896720013472 PSP 5 Jul 15, 2009 User Guide KIT33812EKEVBE Evaluation Board (EVB) is an easy-to-use circuit board used to exercise all the functions of the MC33812 Multifunctional Ignition and Injector Driver. None /docs/en/user-guide/KT33812UG.pdf English documents 1260175 None 132339537837198660 2022-12-07 /docs/en/user-guide/KT33812UG.pdf KIT33812EKEVBE, Evaluation Board - User Guide /docs/en/user-guide/KT33812UG.pdf documents 132339537837198660 User Guide N en None Y pdf 2.0 N KIT33812EKEVBE, Evaluation Board - User Guide 1.3 MB KT33812UG N 1250701262896720013472 true Y Products

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