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PDF LM3554 Download

Texas Instruments
LM3554TME/NOPB
LED Driver 2 Segment 2700uA Supply Current 16-Pin DSBGA T/R

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Description

:

The LM3554 is a 2MHz fixed frequency, current mode synchronous boost converter. The device is
designed to operate as a dual 600mA (1.2A total) constant-current driver for high-current white LEDs, or as a regulated 4.5V or 5V voltage source.

The dual high-side current sources allow for grounded cathode LED operation. An adaptive regulation method ensures the current source for each LED remains in regulation and maximizes efficiency.

 

Features

• Input Voltage: 2.5 V to 5.5 V

• Programmable 4.5-V or 5-V Constant Output Voltage

• Dual High-Side Current Sources

• Grounded Cathode Allowing for Better Heat Sinking and LED Routing



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Related Part Number


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