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LT3477IUF#PBF

Part No LT3477IUF#PBF
Manufacturer Linear Technology
Catalog Board Mount LED Drivers
Description IC LED DRIVER RGLTR DIM 3A 20QFN / LED Driver 4 Segment 7500uA Supply Current 20-Pin QFN EP Tube
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Categories Integrated Circuits (ICs)
Manufacturer Linear Technology
Packaging Tube
Type DC DC Regulator
Topology Flyback, SEPIC, Step-Down (Buck), Step-Up (Boost)
Internal Switch(s) Yes
Number of Outputs 1
Voltage Supply MIN 2.5V
Voltage Supply MAX 25V
Output Current per Channel 3A (Switch)
Frequency 200kHz ~ 3.5MHz
Dimming PWM
Operating Temperature Range -40°C ~ 125°C (TA)
Mounting SMD
Package 20-WFQFN Exposed Pad
Manufacturer Package 20-QFN (4x4)
Win Source Part Number 781042-LT3477IUF#PBF
Popularity Medium
Supply and Demand Status Limited
Family Name LT3477
Introduction Date May 02, 2005
ECCN EAR99
Country of Origin Malaysia
Halogen Free Compliant
Estimated EOL Date 2031
Ultra Librarian 3D Model Ultra Librarian LT3477IUF#PBF CAD Model

Description

The LT3477IUF#PBF is a versatile, multi-topology LED driver IC from Linear Technology, designed to cater to a wide array of lighting applications. This powerful and efficient driver IC is capable of delivering up to 3A of continuous output current, making it suitable for driving high-power LEDs in industrial, automotive, and general lighting applications.

Key Features

  • Wide Input Voltage Range: The device supports an input voltage range from 2.8V to 16V, allowing it to be used with a variety of power sources.
  • Adjustable Switching Frequency: The LT3477IUF#PBF offers an adjustable switching frequency from 200kHz to 2MHz, which provides flexibility in optimizing efficiency and component size.
  • Internal Soft-Start: The built-in soft-start feature limits inrush current during startup, enhancing system reliability.
  • Open LED Protection: The IC includes open LED protection that ensures safe operation if the LED string is broken or disconnected.
  • Thermal Protection: Over-temperature protection safeguards the IC from damage due to excessive heat.
  • PWM Dimming Capability: The device supports pulse-width modulation (PWM) dimming, offering precise control over the LED brightness levels.

Applications

The LT3477IUF#PBF's robust feature set makes it an ideal choice for a variety of applications, including:

  • Automotive and avionic lighting systems
  • Architectural detail and feature lighting
  • Industrial and commercial lighting solutions
  • Portable and handheld illumination devices

Package and Quality

The LT3477IUF#PBF comes in a compact QFN-16 package, offering a space-saving solution for modern PCB designs. The product adheres to Linear Technology's commitment to high quality and reliability, ensuring performance in even the most demanding environments.

With its comprehensive protection features and flexible design options, the LT3477IUF#PBF stands out as a top-tier LED driver solution for engineers and designers looking to enhance their lighting systems with efficiency, precision, and robustness.

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Pricing & Ordering

Quantity Unit Price Ext. Price
7+ $7.3111 $51.1777
17+ $5.9989 $101.9813
26+ $5.8114 $151.0964
36+ $5.6239 $202.4604
46+ $5.4365 $250.0790
62+ $4.8741 $302.1942
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Availability: 509 pieces
MOQ: 7 pcs
Order Increment : 1 pcs
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