LT3477IFE#TRPBF

Voltage - Output:	--
Base Part Number:	LT3477
Supplier Device Package:	20-TSSOP-EP
Package / Case:	20-TSSOP (0.173", 4.40mm Width) Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TA)
Applications:	--
Dimming:	PWM
Frequency:	200kHz ~ 3.5MHz
Current - Output / Channel:	3A (Switch)
Series:	--
Voltage - Supply (Max):	25V
Voltage - Supply (Min):	2.5V
Number of Outputs:	1
Internal Switch(s):	Yes
Topology:	Flyback, SEPIC, Step-Down (Buck), Step-Up (Boost)
Type:	DC DC Regulator
Part Status:	Active
Packaging:	Tape & Reel (TR)

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LT3477IFE#TRPBF is a type of voltage converters in a PMIC-LED Driver family. The driving voltage of this white LED driver IC is from 3.75V to 18V, allowing for both power sources and high-power LED driver applications. As a high-performance voltage converter, LT3477IFE#TRPBF IC is used for LED lighting and is capable of lighting up to 5 LED channels with each LED channel being dimmable independently. The electronic structure of the LT3477IFE#TRPBF is based on an adjustable-frequency, current-mode control system. This adjustable frequency is achieved by digitally adjusting the slope compensation and frequency foldback pins. This state-of-the-art IC also features a temperature compensation circuit, allowing for a temperature range of -40°C to +85°C. In terms of power sources, LT3477IFE#TRPBF IC is capable of being operated with either a buck-boost or a buck converter. This IC\'s power conversion capabilities run from 0.45A to 4.0A, meaning it is suitable for a wide range of applications. The integrated low-side power MOSFET ensures efficient current delivery, resulting in high power output. When it comes to LED dimming, LT3477IFE#TRPBF IC is equipped with a 6-bits PWM dimming inputs to enable varying dimming levels from 0% to 100%. The adjustable frequency and foldback pins of the IC ensures that the PWM dimming range can be maintained even at a very low output voltage. Additionally, the IC can also support the use of an external PWM controller. In terms of EMC and safety, the LT3477IFE#TRPBF IC is equipped with a host of safety features, including a soft-start, output current limit and overvoltage protection. It also includes opto-coupler isolation and integrated EMC protection circuit, making the IC compliant with the latest EMC standards. In terms of performance, LT3477IFE#TRPBF is an extremely efficient and reliable IC, achieving an efficiency of up to 97% at some cases and due to its integrated FET and reduced parts count, results in a simplicity and low cost solution. In conclusion, the LT3477IFE#TRPBF is a high-performance voltage converter IC, designed for power sources, high-power LED driver applications and LED lighting applications in general. Its adjustable-frequency, current-mode control system allows for varying PWM dimming levels from 0-100% for any given LED channel. Additionally, the IC also provides a host of safety features, as well as opto-coupler isolation and integrated EMC protection circuit, making the IC compliant with the latest safety and EMC standards. All in all, the LT3477IFE#TRPBF is a reliable and efficient LED driver IC, making it a perfect choice for any LED application.

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