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A8440 - 4-CHANNEL WHITE LED DRIVER

Key Features

  • The A8440 is a complete backlight display solution that is designed to independently control LEDs. The A8440 is a charge pump WLED driver capable of driving up to 4 LEDs with 30mA each LED. Its four tightly regulated current sources ensure excellent LED current and brightness matching. LED driver current is programmed by an external resistor. The A8440 operates over an input voltage range from 3V to 5.5V, optimized for WLED.

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Datasheet Details

Part number A8440
Manufacturer AiT Semiconductor
File Size 658.62 KB
Description 4-CHANNEL WHITE LED DRIVER
Datasheet download datasheet A8440 Datasheet

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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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AiT Semiconductor Inc. www.ait-ic.com A8440 4CHANNEL WHITE LED DRIVER 1x /1.5x CHARGE PUMP DISPLAY BACKLIGHT SOLUTION DESCRIPTION FEATURES The A8440 is a complete backlight display solution that is designed to independently control LEDs. The A8440 is a charge pump WLED driver capable of driving up to 4 LEDs with 30mA each LED. Its four tightly regulated current sources ensure excellent LED current and brightness matching. LED driver current is programmed by an external resistor. The A8440 operates over an input voltage range from 3V to 5.5V, optimized for WLED applications powered by Li-Ion battery, requiring only for low cost ceramic capacitors. The A8440 provides excellent efficiency by operating the charge pump in a gain of 1 or 1.5.