Datasheet > MC33099CDWR2

MC33099CDWR2

更新时间： 2024-11-10 04:59:19

品牌	Logo	应用领域
飞思卡尔 - FREESCALE		调节器电机
页数	文件大小	规格书
18页	682K
描述
Adaptive Alternator Voltage Regulator

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MC33099CDWR2 数据手册

Document Number: MC33099

Rev. 6.0, 1/2007

Freescale Semiconductor

Technical Data

Adaptive Alternator Voltage

Regulator

33099

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 by connecting pins 7 and 8 to ground.

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

EG SUFFIX (PB-FREE)

98ASB42567B

16-PIN SOICW

ORDERING INFORMATION

Temperature

Features

• External High-Side MOSFET Control of a Ground-Referenced

Field Winding

Device

Package

Range (T )

• LRC Active During Initial Start

MC33099DW/R2

MC33099CDW/R2

MCZ33099EG/R2

MCZ33099CEG/R2

• V at ±0.1 V @ 25°C

16 SOICW

set

• <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

-40°C to 125°C

16 SOICW

(Pb-FREE)

• Trimmed Devices Available at 14.6 V and 14.8 V (typical) V

set

• Pb-Free Packaging Designated by Suffix Code EG

33099

PHASE

FIELD

GATE

WINDING

SOURCE

PHASE FILTER

IGN

IGNITION

SWITCH

LAMP DRAIN

BAT

REMOTE

LRC1

LRC2

AGND

GND

CHASSIS

Figure 1. 33099 Simplified Application Diagram

12 3 4 5 6 7...18

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