Part Number
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LTC3490 |
Manufacturer
|
Linear Technology |
Description
|
Single Cell 350mA LED Driver |
Published
|
Jan 21, 2007 |
Detailed Description
|
U U
LTC3490
Single Cell 350mA LED Driver
FEATURES
■ 350mA Constant Current Output ■ 2.8V to 4V Output Compliance ■ 1- ...
|
Datasheet
|
LTC3490
|
Overview
U U
LTC3490
Single Cell 350mA LED Driver
FEATURES
■ 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 Quiescent 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
U APPLICATIO S
■ Portable Lighting ■ Rechargeable Flashlights
DESCRIPTIO
The LTC®3490 provides a constant current drive for 1W LED applications.
It is a high efficiency boost converter that operate...
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