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LM3590 - Series White LED Driver

Description

The LM3590 is a White LED constant current driver capable of supplying up to 3 White LEDs connected in series with 20mA.

This device operates over a wide 6V-12.6V input voltage range.

The output can accomodate LEDs with a combined forward voltage of up to 11.5V, from a 12V input supply.

Features

  • n Drives up to 3 stacked white LEDs n 6.0V-12.6V input voltage range n Up to 20mA LED output current n Excellent LED current matching guaranteed by series configuration n Single connection to the White LEDs in the display module n Tightly controlled programmable current source n Low shutdown current (0.1µA typ. ) n PWM brightness control n Very small solution size n SOT23-5 package: 3mm x 3mm x 1.0mm (LxWxH).

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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LM3590 Series White LED Driver November 2003 LM3590 Series White LED Driver General Description The LM3590 is a White LED constant current driver capable of supplying up to 3 White LEDs connected in series with 20mA. This device operates over a wide 6V-12.6V input voltage range. The output can accomodate LEDs with a combined forward voltage of up to 11.5V, from a 12V input supply. The LED drive current is programmed by using an external resistor on the ISET pin. LED brightness can be linearly varied up to the programmed LED current by applying a Pulse Width Modulated (PWM) signal to the EN pin of the device. The LED output current of the LM3590 is tightly controlled over temperature and voltage. LED Current matching is guaranteed due to the series configuration of the LEDs.
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