MC33099 Datasheet (Motorola) - Adaptive Alternator Voltage Regulator

MC33099, Adaptive Alternator Voltage Regulator

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

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 accomplish

MC33099 Features

* External High-Side MOSFET Control of a Ground-Referenced Field Winding

* LRC Active During Initial Start

* Vset at ±0.1 V @ 25°C