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MC33099

更新时间: 2024-11-09 22:54:59
品牌 Logo 应用领域
摩托罗拉 - MOTOROLA 调节器电机
页数 文件大小 规格书
20页 295K
描述
Adaptive Alternator Voltage Regulator

MC33099 数据手册

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Freescale Semiconductor, Inc.  
MOTOROLA  
Document order number: MC33099  
Rev 4.0, 07/2004  
SEMICONDUCTOR TECHNICAL DATA  
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.  
ALTERNATOR VOLTAGE  
REGULATOR  
The 33099 uses a feedback voltage to establish an alternator field current  
that is in harmony with system load currents. The output voltage is monitored  
by an internal voltage divider scheme and compared to an internal voltage  
ramp referenced to a bandgap voltage. This approach provides precision  
output voltage control over a wide range of temperature, electrical loads, and  
engine RPM.  
DW SUFFIX  
CASE 751G-04  
16-TERMINAL SOICW  
Features  
• External High-Side MOSFET Control of a Ground-Referenced Field  
Winding  
• LRC Active During Initial Start  
ORDERING INFORMATION  
Temperature  
Device  
Package  
Range (T )  
• V at ±0.1 V @ 25°C  
set  
A
• <0.1 V Variation Over Engine Speeds of 2,000 to 10,000 RPM  
• <0.2 V Variation Over 10% to 95% of Maximum Field Current  
• Controlled MOSFET and Field Flyback Diode Recovery Characteristics  
for Minimum RFI  
MC33099DW/R2  
MC33099CDW/R2  
-40°C to 125°C  
16 SOICW  
• Trimmed Devices Available at 14.6 V and 14.8 V (typical) V  
set  
33099 Simplified Application Diagram  
33099  
PHASE  
FIELD  
WINDING  
GATE  
SOURCE  
PHASE FILTER  
IGN  
IGNITION  
SWITCH  
LAMP DRAIN  
BAT  
REMOTE  
LRC1  
LRC2  
AGND  
GND  
CHASSIS  
For More Information On This Product,  
Go to: www.freescale.com  
© Motorola, Inc. 2004  

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