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LT3519-2 Datasheet

LT3519-2 Datasheet

LED Driver with Integrated Schottky Diode
Part No.: LT3519-2
Page: 20 Pages
Size: 281 KB
Manufacturer: Linear Technology
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Views: 2
Update Time: 2024-04-29 14:51:14
DataSheet: Download

LT3519-2 Datasheet Applicable Part

Part No. Packing SPQ Marking MSL Pins Temp Range Package Description Buy
LT3519EMS-2#PBF Tube 37 35192 1 16 -40°C ~125°C 16-Lead Plastic MSOP  
LT3519EMS-2#TRPBF Reel 2500 35192 1 16 -40°C ~125°C 16-Lead Plastic MSOP  
LT3519EMS-2#TRMPBF Reel 500 35192 1 16 -40°C ~125°C 16-Lead Plastic MSOP  
LT3519IMS-2#PBF Tube 37 35192 1 16 -40°C ~125°C 16-Lead Plastic MSOP  
LT3519IMS-2#TRPBF Reel 2500 35192 1 16 -40°C ~125°C 16-Lead Plastic MSOP  
LT3519IMS-2#TRMPBF Reel 500 35192 1 16 -40°C ~125°C 16-Lead Plastic MSOP  
SPQ:Standard Pack Quantity;MSL:Moisture Sensitivity Level

LT3519-2 Datasheet(PDF)

LT3519-2 Datasheet(Picture)

LT3519-2 Features

  • Up to 3000:1 True Color PWM Dimming
  • Wide Input Voltage Range
    • Operation from 3V to 30V
    • Transient Protection to 40V
  • Rail-to-Rail LED Current Sense from 0V to 45V
  • 45V, 750mA Internal Switch
  • Internal Schottky Diode
  • Constant-Current and Constant-Voltage Regulation
  • Boost, SEPIC, Buck-Boost Mode or Buck Mode Topology
  • Open LED Protection and Open LED Status Pin
  • Programmable Undervoltage Lockout with Hysteresis
  • Fixed Frequency: 2.2MHz (LT3519-2)
  • Internal Compensation
  • CTRL Pin Provides Analog Dimming
  • Low Shutdown Current: <1μA
  • 16-Lead MSOP Package

LT3519-2 Applications

  • Automotive
  • Industrial
  • Constant Current Source
  • Current Limited Constant Voltage Source

LT3519-2 Description

The LT3519-2 are fixed frequency step-up DC/DC converters designed to drive LEDs. They feature an internal 45V, 750mA low side switch and Schottky diode. Combining a traditional voltage feedback and a unique rail-to-rail current sense feedback allows these converters to operate as a constant-voltage source or constant-current source. Internal compensation simplifies applications. These devices feature rail-to-rail LED current sense pins that provide the most flexibility in choosing a converter configuration to drive the LEDs. The LED current is externally programmable with a sense resistor. The external PWM provides up to 3000:1 PWM dimming and the CTRL input provides analog dimming.

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