Highly Integrated WLED Driver with Class D Amplifier Provides Excellent Noise Immunity and Ultra-High Efficiency
Submitted by Ionela on Wed, 03/26/2008 - 08:14.
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SUNNYVALE, CA March 10, 2008 Maxim Integrated Products (Pink Sheets: MXIM) introduces the MAX8821 the only white-LED (WLED) driver to combine a highly efficient, negative charge pump with a fully differential, bridged audio amplifier and two low-noise, low-dropout (LDO) current regulators. To maximize efficiency, this LED driver features a negative architecture that completely eliminates high-side, in-line switch resistance loss in 1x mode, delaying 1x to 1.5x mode transitions during battery discharge. |
