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MC33099 - Adaptive Alternator Voltage Regulator

General Description

Terminal Terminal Name GATE BAT GND LAMP DRAIN LAMP GATE IGN LRC2 LRC1 AGND REMOTE NC LRC TEST PHASE FILTER PHASE SOURCE Formal Name Gate Drive Battery Ground Lamp Drain Lamp Gate Ignition Load Response Control 2 Load Response Control 1 Analog Ground Remote No Connect Load Response Control Test Phas

Key Features

  • External High-Side MOSFET Control of a Ground-Referenced Field Winding.
  • LRC Active During Initial Start.
  • Vset at ±0.1 V @ 25°C.

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Other Datasheets by Motorola Semiconductor (now NXP Semiconductors)

Part Number Description
MC33091A HIGH-SIDE TMOS DRIVER
MC33092A ALTERNATOR VOLTAGE REGULATOR
MC33094 IGNITION CONTROLLER
MC33095 INTEGRAL ALTERNATOR REGULATOR
MC3301 Quad Operational Amplifiers

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Freescale Semiconductor, Inc. MOTOROLA SEMICONDUCTOR TECHNICAL DATA Document order number: MC33099 Rev 4.0, 07/2004 33099 Adaptive Alternator Voltage Regulator The 33099 is designed to regulate the output voltage in diode-rectified alternator charging systems common to automotive applications. The 33099 provides either an analog or digital fixed frequency duty cycle (ON/OFF ratio) control of an alternator’s field current. Load Response Control (LRC) of the alternator field current is accomplished by selecting the duty cycle for prevailing engine conditions to eliminate engine speed hunting and vibrations caused by abrupt torque loading of the engine owing to sudden electrical loads being applied to the system at low engine RPM. Four LRC rates are selectable.