UC3872DWG4

Series:	--
Packaging:	Tube
Part Status:	Active
Type:	Ballast Controller
Frequency:	57kHz ~ 78kHz
Voltage - Supply:	4.5 V ~ 24 V
Current - Supply:	6mA
Current - Output Source/Sink:	--
Dimming:	No
Operating Temperature:	0°C ~ 70°C
Mounting Type:	Surface Mount
Package / Case:	16-SOIC (0.295", 7.50mm Width)
Supplier Device Package:	16-SOIC
Base Part Number:	UC3872

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UC3872DWG4 Application Field and Working Principle

PMIC, or power management integrated circuit, is becoming increasingly important in emerging technologies across many fields of study. Lighting, ballast controllers are a type of PMIC whose output is designed to control lighting applications. UC3872DWG4 is a lighting, ballast controller device developed by Texas Instruments (TI) which is used to drive external power to maintain a constant output voltage and current in an AC line-powered application. The UC3872DWG4 is a topology lighting control IC that utilizes the Fairchild Integrated Switch-Mode PFC (ISMPFC) control algorithm to provide accurate switching and dimming control for lighting applications. This device is capable of driving both power factor correction (PFC) pre-regulation and post-regulation switches. The PFC pre-regulation switch is used to limit the crest factor or PF of a line-powered application, while the post-regulation switch is used to regulate the output voltage and current of the application. The UC3872DWG4 has an integrated, low-side PFC pre-regulation switch, as well as a low-side post-regulation switch, which are capable of driving both low/high-side and high/low-side MOSFETs.Another important feature of this device is its integrated, high frequency power base. This feature allows the UC3872DWG4 to handle a wide input voltage and high power factor. The UC3872DWG4 has a power base that is capable of providing up to 6 amps of continuous drive current and up to 7.5 amps peak. This power base is also capable of achieving a frequency of up to 600kHz, making the UC3872DWG4 a high-performance device for lighting applications.The UC3872DWG4 also has an integrated pulse width modulation (PWM) generator which is used to precisely control the output voltage and current of the application. This PWM generator also has a wide range of frequency settings which can be adjusted depending on the application requirements. The UC3872DWG4 has a wide range of adjustable frequency settings, ranging from 10kHz to 600kHz. The UC3872DWG4 also has a very flexible compensation loop which can be adjusted for different application conditions. This loop is used to control the output voltage and current of the application based on the output of the PFC pre-regulation switch or the post-regulation switch. The UC3872DWG4 also has a temperature shutdown feature which protects the device from possible over-temperature conditions. In addition, the UC3872DWG4 has an input under-voltage lockout feature which prevents the device from operating under a low voltage condition. This protects the device from possible damage due to a low voltage condition. The UC3872DWG4 also has an over-voltage protection feature which will shut down the device if the input voltage exceeds the maximum allowed rating.Overall, the UC3872DWG4 is a high-performance lighting, ballast controller device with many features that make it a great choice for lighting applications. This device is capable of driving both power factor correction pre-regulation switch and post-regulation switches. In addition, the UC3872DWG4 also has an integrated, high frequency power base which allows for a wide input voltage range, high power factor, and precise output voltage and current control. The device also has a wide range of frequency settings and compensation loops which can be adjusted for different application conditions. In addition, the device is also equipped with temperature shutdown and input under-voltage lockout features which provide the device with added protection from possible hazards.

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