MC33099DWR2 [MOTOROLA]
Analog Circuit, 1 Func, PDSO16, PLASTIC, SO-16;
| 型号： | MC33099DWR2 |
| 厂家： | 
MOTOROLA |
| 描述： | Analog Circuit, 1 Func, PDSO16, PLASTIC, SO-16 光电二极管 |
| 文件： | 总2页 (文件大小：497K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ANALOG
PRODUCTS
MC33099
FACT SHEET
MC33099 ADAPTIVE ALTERNATOR VOLTAGE REGULATOR
The MC33099 is designed to regulate the output voltage in diode rectified alternator charging
systems common to automotive applications.
Simplified Application Diagram
APPLICATIONS
The MC33099 provides either
• Automotive Systems
an analog or digital fixed fre-
quency duty cycle (ON/OFF
ratio) control of an alternator’s
MC33099
• Aircraft Electrical
Systems
BATT
IGN
field current. Load Response
Control (LRC) of the alternator
field current is accomplished
LAMP
• Powered Farm
Equipment
DRAIN
REMOTE
GATE
FIELD
WINDING
• Industrial Generators
and Equipment
PHASE
by selecting the duty cycle for
prevailing engine conditions to
eliminate engine speed hunting
and vibrations caused by
abrupt torque loading of the
engine due to sudden electrical
loads being applied to the sys-
tem at low engine RPM. Four
LRC rates are selectable by
connecting Pins 7 and 8 to
ground.
SOURCE
AGND
PHASE
FILTER
• Marine Power Plants
GND
LRC1 LRC2
The MC33099 uses a feedback voltage to establish an alternator field current that is in harmo-
ny 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.
CUSTOMER BENEFITS
• Low system cost, minimal components, and simple
hook-up to system
• Smoother idling where engine is subjected to torque
changes caused by abrupt electrical loads
Performance
Outputs
Regulation
Typical Values
1
± ±0.1±V
• Robustness with a proven under-the-hood automotive
track record
• Alternator field shorts-to-ground protected
• Numerous operating safety enhancement features
adding to system robustness
Operating±Voltage
Min±Duty±Cycle
Adjustable±LRC±
PWM±Frequency
Operating±Temp
14.8±V±nominal
3.10%
1.8±to±7.4±Sec
395±Hz
-40°C±≤±TA ≤±125°C
FEATURES
• External high-side MOSFET control of a ground referenced field winding
• LRC active during initial start
•
0.1 V at a 14.8 V regulation voltage @ 25°C
• < 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 for minimal RFI
• < 1.5 mA standby current from battery @ 25°C
• Loss of remote sense backup protection
Auto
Status Field Short Lamp
Protection
Detect Limiting Retry Reporting
to GND
Driver
Over±Voltage
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
Under±Voltage
Over±Current/SC
Over±Temperature
Lamp±Driver
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
Ordering
Information
ShipMotorola
Package Method
Part Number
16 SOICW Rail
T/R
MC33099DW
MC33099DWR2
Data Sheet Order Number
MC33099/D
QUESTIONS
• Do you need an alternator voltage regulator for 12 V electrical systems?
• Do you need a regulator for a GM-9SI type alternator application?
• Does your alternator regulator design need to compensate for abrupt electrical system
loads to prevent engine idle loping?
• Do you need a highly accurate alternator regulator to cover a wide range of operating
conditions?
• Do you need a regulator with programmable load response rates?
How to reach us:
USA/EUROPE/Locations Not Listed: Motorola±Literature±Distribution;±
P.O.±Box±5405,±Denver,±Colorado±80217
1–303–675–2140±or±1–800–441–2447
JAPAN: Motorola±Japan±Ltd.;±SPS,±Technical±Information±Center,±
3–20–1,±Minami–Azabu.±Minato–ku,±Tokyo±106–8573±Japan
81–3–3440–3569
MOTOROLA and±the±Stylized±M±Logo±are±registered±in±the±U.S.±Patent±&±Trademark±Office.±
All±other±product±or±service±names±are±the±property±of±their±respective±owners.
©±Motorola,±Inc.±2001
ASIA/PACIFIC: Motorola±Semiconductors±H.K.±Ltd.;±Silicon±Harbour±Centre,±
2±Dai±King±Street,±Tai±Po±Industrial±Estate,±Tai±Po,±N.T.,±Hong±Kong
852–26668334
Technical Information Center: 1–800–521–6274
MC33099FS/D
Rev.±0
HOME PAGE: http://www.motorola.com/semiconductors/
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