Charge pump powers display backlights with high efficiency

Sunnyvale, Calif.—Maxim Integrated Products' MAX8647 is a negative charge pump that provides high efficiency in powering LCD display backlights.

The MAX8647's negative charge-pump architecture eliminates in-line resistance from battery to LEDs. This design delays mode switching from 1x to 1.5x during battery discharge.

A proprietary, adaptive-mode switching technology controls each of the six white or RGB LEDs independently. As a result, the MAX8647 achieves a 12% boost in efficiency, even with large LED forward-voltage (Vf) mismatch, according to Maxim.

The MAX8647 can help extend battery life and provide longer talk-time in several applications, including cell phones, smartphones, and media players.

Pricing: Starts at $1.95 (2500-up FOB, USA).
Availability: Now.
Datasheet: click here.

Maxim Integrated Products, 1-408-737-7600,

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