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ADD5205 - Four-String White LED Driver

General Description

The ADD5205 is a white LED driver for backlight applications based on high efficiency, current mode, step-up converter technology.

It is designed with a 0.3 Ω internal switch and 1 MHz fixed operating frequency.

Key Features

  • White LED driver based on inductive boost converter Input voltage range: 2.8 V to 18 V Internal compensation 1 MHz fixed operating frequency 28 V fixed overvoltage protection Built-in soft start for boost converter Drives up to 4 LED current sources LED current adjustable up to 25 mA for each channel DC current level brightness control with PWM input LED open fault protection General Thermal shutdown Undervoltage lockout 12-lead, 3 mm × 3 mm × 0.75 mm LFCSP package ADD5205.

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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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www.DataSheet.co.kr Four-String White LED Driver Data Sheet FEATURES White LED driver based on inductive boost converter Input voltage range: 2.8 V to 18 V Internal compensation 1 MHz fixed operating frequency 28 V fixed overvoltage protection Built-in soft start for boost converter Drives up to 4 LED current sources LED current adjustable up to 25 mA for each channel DC current level brightness control with PWM input LED open fault protection General Thermal shutdown Undervoltage lockout 12-lead, 3 mm × 3 mm × 0.75 mm LFCSP package ADD5205 FUNCTIONAL BLOCK DIAGRAM STEP-UP SWITCHING REGULATOR 4-CHANNEL CURRENT SOURCES BRIGHTNESS CONTROL LOGIC UNDERVOLTAGE LOCKOUT SOFT START THERMAL PROTECTION OVERVOLTAGE PROTECTION AUTODISABLE FOR LED OPEN Figure 1.