Отправил MACTEP.Дата добавления 25.10.2009 (2752 прочтений)
1x, 1.5x, 2x High Efficiency Charge Pump 4 White LED Driver FEATURES • 2% LED Current Matching • High Efficiency (>93 • Current Source Outputs • No Ballast Resistors Required • 1x, 1.5x and 2x Automatic Modes • Constant Frequency Operation • Automatic LED Detection • High and Low Frequency PWM Capability • 2.5V to 5.5V Operation • Less than 1µA Leakage during Shutdown • Detects Changes in Battery Level • No External Schottky Diode Required • Soft-Start and Soft Switching Operation APPLICATIONS • Cell Phones • PDA or Hand Held Computers • White LED Application at 3.6V Supply