LT3492IUFD#PBF

Voltage - Output:	--
Base Part Number:	LT3492
Supplier Device Package:	28-QFN (4x5)
Package / Case:	28-WFQFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Applications:	--
Dimming:	PWM
Frequency:	330kHz ~ 2.1MHz
Current - Output / Channel:	600mA (Switch)
Series:	--
Voltage - Supply (Max):	30V
Voltage - Supply (Min):	3V
Number of Outputs:	3
Internal Switch(s):	Yes
Topology:	SEPIC, Step-Down (Buck), Step-Up (Boost)
Type:	DC DC Regulator
Part Status:	Active
Packaging:	Tube

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PMIC - LED Drivers

The LT3492IUFD#PBF is an LED driver marketed by Linear Technology and is targeted at applications with cost and space must be tightly controlled. It is designed to drive LED strings with up to 12 LEDs in series and is a high efficiency synchronous low-side controller that has outputs of up to 80 V and 1.5 A. It is used in a variety of applications such as exterior automotive lighting, architectural lighting, decorative lighting and so on.The LT3492IUFD#PBF is based on a unique switching architecture which allows for a large range of operation and high efficiency. This patented low-side architecture allows the current to remain independent of the input voltage, which allows for the string voltage to be regulated while the current is constant. The LT3492IUFD#PBF also features an adjustable soft-start, programmable frequency and current foldback. The device features an automatic shutdown, a temperature monitor and several fault flags.The LT3492IUFD#PBF is designed to provide a wide range of features, including over-voltage protection, over-temperature protection, under voltage protection, over current protection, short-circuit protection, and open-drain operations. The device also features a selectable mode to provide either a linear dimming or a PWM dimming.The LT3492IUFD#PBF has two output stages: direct LED drive and LEDx output drive. The LEDx output drive is used for multi-LED string applications. The LEDx output drive can be used in various combinations up to 12 LEDs in series. The LEDx output can be easily programmable with the linear dimming or PWM dimming mode.The LT3492IUFD#PBF has an adjustable Soft-Start feature which prevents overshoot during start-up, allowing for fewer safety precautions when compared to standard LED drivers. The device also offers a programmable frequency and current foldback mode which helps to reduce power and thermal stress.The LT3492IUFD#PBF also offers several features which help to reduce EMI, and offer improved performance. These features include both peak current reduction, and EMI reduce forward and reverse current reduction.In conclusion, the LT3492IUFD#PBF is a highly efficient and feature-packed LED driver targeted mostly at automotive lighting and architectural lighting applications, but with its wide range of features and operation it can be used in a variety of other applications as well. With its simple, low-side architecture and easy configurability, the LT3492IUFD#PBF is an ideal choice for driving up to 12 LEDs in series.

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