LM3519

High Frequency Boost White LED Driver

National Semiconductor

LM3519 Features

* a proprietary PFM regulation architecture with switching frequencies between 2MHz to 8MHz, minimizing inductor size. Over-voltage protection circuitry and high frequency operation permit the use of low-cost small output capacitors. During shutdown, the output is disconnected from the input in order

LM3519 General Description

The LM3519 drives up to 4 white LEDs with constant current to provide LCD backlighting in handheld devices. The LED current is internally set to 20mA. The series connection allows the LED current to be identical for uniform brightness and minimizes the number of traces to the LEDs. Brightness contro.

LM3519 Datasheet (1.35 MB)

LM3519 Datasheet Preview — Preview of LM3519 PDF

Datasheet Details

Part number:

LM3519

Manufacturer:

National Semiconductor

File Size:

1.35 MB

Description:

High frequency boost white led driver.
LM3519 High Frequency Boost White LED Driver with High-Speed PWM Brightness Control September 2005 LM3519 High Frequency Boost White LED Driver with.

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LM3519 High Frequency Boost White LED Driver National Semiconductor

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LM3519 Features

LM3519 General Description

Datasheet Details

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Description:

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