HV9805MG-G Integrated Circuits (ICs)

Part Status:	Active
Type:	AC DC Offline Switcher
Topology:	SEPIC, Step-Up (Boost)
Internal Switch(s):	Yes
Number of Outputs:	1
Voltage - Supply (Min):	7.9V
Voltage - Supply (Max):	8.6V
Voltage - Output:	20V
Current - Output / Channel:	--
Frequency:	--
Dimming:	--
Applications:	Lighting
Operating Temperature:	-40°C ~ 125°C (TA)
Mounting Type:	Surface Mount
Package / Case:	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Supplier Device Package:	10-MSOP
Base Part Number:	HV9805
Series:	--
Packaging:	Tape & Reel (TR)

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IntroductionAs advances in semiconductor technology have enabled new applications for light emitting diodes (LEDs), the need for more efficient lighting solutions has grown significantly. PMIC (power management integrated circuits) are devices that can help drive current in LED systems with improved energy efficiency, higher luminosity, and longer operational life. HV9805MG-G is a comparatively recent LED driver PMIC, providing intelligent LED dimming capabilities that can be managed via analog/digital or pulse-width modulation (PWM).Application fieldThe HV9805MG-G is an automotive-grade power management integrated circuit (PMIC) specifically designed to deliver accurate and consistent current control in LED-powered light sources, such as those used in automotive lighting systems. Specifically, it is designed to work with a wide range of LEDs, such as one-chip, one-power, RGB, and dual-drive in automotive applications.In addition, HV9805MG-G can be used in other applications where its benefits in terms of energy efficiency, increased luminosity, and longer life extents are desirable. Such applications may include devices such as consumer electronics, LCD and plasma displays, cameras, and projectors.Working principleThe HV9805MG-G is designed to optimize energy consumption in LED-powered systems, while providing higher luminosity and longer operational life. It works by providing a constant current to the LED. This current is modulated either through an analog or a digital command, or by a PWM signal.The current is then supplied to the LED using a buck-boost topology. The buck-boost converter ensures that the LED operates in its most efficient range, while the modulation of the current can be adjusted using internal or external controls.The HV9805MG-G includes two voltage reference pins, allowing for a better accuracy of the operating current over temperature. Additionally, the device can be synchronized with external clock sources, allowing for even higher accuracy and strong noise rejection.AdvantagesThe main advantages of the HV9805MG-G compared to other similar PMICs are the following:·Wide range of operation modes: Analog or digital control, or PWM synchronization ·High efficiency levels: up to 95% efficiency ·High output current: up to 2A; 6W max output power ·Wide input voltage range: 3.5 to 20V ·Low quiescent current: 5μA in shutdown modeConclusionHV9805MG-G is a PMIC designed for automotive applications and can be used in other applications where its benefits in terms of energy efficiency, increased luminosity, and longer life extents are desired. It works by providing a constant and modulated current, using a buck-boost topology. The device\'s main advantages are its wide range of operation modes, high efficiency levels, high output current, wide input voltage range, and low quiescent current.

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