Description

The 3309P-1-101 is a trimmer potentiometer used in electronic components. It is designed to regulate the output voltage in dioderectified alternator charging systems common to automotive applications. This component provides either an analog or digital fixed frequency duty cycle control of an alternator's field current. It also features Load Response Control (LRC) 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.

Specifications and features

• External High-Side MOSFET Control of a Ground-Referenced Field Winding
• LRC Active During Initial Start
• Vset at ±0.1 V @ 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 Characteristics for Minimum RFI
• Trimmed Devices Available at 14.6 V and 14.8 V (typical) Vset
• Pb-Free Packaging Designated by Suffix Code EG

Application Scenarios

The 3309P-1-101 is commonly used in automotive applications that require dioderectified alternator charging systems. It is particularly useful for regulating the output voltage and controlling the field current of the alternator. This component is designed to eliminate engine speed hunting and vibrations caused by sudden electrical loads being applied at low engine RPM.

Comparison

The advantages of the 3309P-1-101 include its ability to regulate the output voltage in dioderectified alternator charging systems, its analog or digital duty cycle control, and its Load Response Control (LRC) feature. It also has controlled MOSFET and field flyback diode recovery characteristics for minimum RFI. On the other hand, its disadvantages include the limited range of selectable LRC rates and its specific application in automotive systems.