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LT3490

Linear Technology
Part Number LT3490
Manufacturer Linear Technology
Description Single Cell 350mA LED Driver
Published Feb 8, 2006
Detailed Description LTC3490 Single Cell 350mA LED Driver FEATURES ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ DESCRIPTIO U APPLICATIO S ■ ■ 350mA Constant C...
Datasheet PDF File LT3490 PDF File

LT3490
LT3490

Overview
LTC3490 Single Cell 350mA LED Driver FEATURES ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ DESCRIPTIO U APPLICATIO S ■ ■ 350mA Constant Current Output 2.
8V to 4V Output Compliance 1- or 2-Cell NiMH or Alkaline Input Synchronous Rectification: Up to 90% Efficiency Fixed Frequency Operation: 1.
3MHz Low Quiescient Current: <1mA Very Low Shutdown Current: <50µA Open LED Output Limited to 4.
7V VIN Range: 1V to 3.
2V Dimming Control Undervoltage Lockout to Protect Batteries Low Profile (0.
75mm) 3mm × 3mm Thermally Enhanced 8-Lead DD and S8 Packages The LTC®3490 provides a constant current drive for 1W LED applications.
It is a high efficiency boost converter that operates from 1 or 2 NiMH or alkaline cells and gen...


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