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TS1518

Taiwan Semiconductor Company
Part Number TS1518
Manufacturer Taiwan Semiconductor Company
Description White LED Driver
Published Mar 5, 2010
Detailed Description Step-Up DC-DC Converter, White LED Driver SOT-25 Pin Definition: 1. SW 2. Ground 3. Feedback 4. CTRL 5. Input www.DataS...
Datasheet PDF File TS1518 PDF File

TS1518
TS1518

Overview
Step-Up DC-DC Converter, White LED Driver SOT-25 Pin Definition: 1.
SW 2.
Ground 3.
Feedback 4.
CTRL 5.
Input www.
DataSheet4U.
com TS1518 General Description The TS1518 is a step-up DC-DC converter; operates as current source to drive up to 6 white LEDs(VIN at 3.
0V) or 8 LEDs(VIN at 3.
5V) or 9 LEDs(VIN at 3.
5V) in series.
Series connecting of the LEDs provides identical LED currents resulting in uniform brightness and eliminating the need for ballast resistors.
The light intensity of these LEDs is proportional to the current passing through them.
The TS1518 switches at a fixed frequency of ~930KHz, allowing the use of tiny, low profile inductors and capacitors to minimize footprint and cost in space consideration applications for cellular phone backlighting or other hand held equipment.
The TS1518 can drive up to 9 white LEDs from a single LiIon battery.
The wide input voltage range from 2.
7V to 7V is ideal for portable with higher conversion efficiency.
To control LED brightness, th...


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