Ultra-High-Efficiency White LED Drivers

General Description The MAX1984/MAX1985/MAX1986 are white light-emitting diode (LED) drivers that use individual regulators to control the current of up to eight LEDs. A high-efficiency step-up regulator generates just enough voltage to keep all the current regulators in regulation. A versatile d

Ultra-High-Efficiency White LED Drivers

General Description The MAX1984/MAX1985/MAX1986 are white light-emitting diode (LED) drivers that use individual regulators to control the current of up to eight LEDs. A high-efficiency step-up regulator generates just enough voltage to keep all the current regulators in regulation. A versatile d

超高效率白光LED驱动器

MAX1984/MAX1985/MAX1986是白光LED的驱动器，采用独立的稳压器，控制多达8只LED的电流。高效率的升压转换器产生刚好足够的电压，以保持所有的电流调节器处于正常调节。支持多种亮度调节接口，包括模拟、数字调节的脉宽调制(DPWM)和并行控制。\n 独立的电流调节器实现了LED之间良好的电流匹配。开路或短路的LED不会影响其它LED的正常工作。\n 通过采用同步整流，升压转换器达到了较高效率。内置N沟道开关管和P沟道同步整流器无需外部MOSFET和整流二极管。1MHz开关频率允许使用薄型的电感和陶瓷电容。\n 通过多种亮度调节接口，如DPWM信号、2位或3位并行控制接口，或模拟 \n• 同步升压转换器 \n• >95%的转换效率 \n• 内置开关和同步整流管 \n• 无需外部MOSFET和整流二极管 \n• 1MHz的固定频率尽可能地减小元件尺寸 \n• 高达90%的整体LED效率 \n• 精确的LED电流匹配(8%，最低) \n• 可调的最大LED电流 \n• 多种亮度控制接口 \n• 数字脉宽调制控制 \n• 2位并行控制 \n• 3位并行控制 \n• 模拟控制 \n• 可选的LED使能 \n• LED开路检测 \n• 独特的0.5mA LED测试模式 \n• 2.7至5.5V输入电源范围 \n• 小而薄的20引脚、4mm x 4mm QF;

封装/外壳：20-WFQFN 裸露焊盘 包装：卷带（TR） 描述：IC LED DRV RGLTR PWM 25MA 20TQFN 集成电路（IC） LED 驱动器

封装/外壳：20-WFQFN 裸露焊盘 包装：卷带（TR） 描述：IC LED DRV RGLTR PWM 25MA 20TQFN 集成电路（IC） LED 驱动器

High Definition Audio SoundMAX Codec

GENERAL DESCRIPTION The AD1984 family of audio codecs and SoundMAX® software provides superior High Definition audio quality that exceeds Vista Premium performance. The AD1984 has four 192 kHz DACs, four 192 kHz ADCs, S/PDIF output, a four-channel digital microphone interface, Digital Beep and an

High Definition Audio SoundMAX Codec

GENERAL DESCRIPTION The AD1984B audio codec and SoundMAX® software provide superior high definition audio quality that exceeds Vista Premium performance. The AD1984B has two 192 kHz DAC pairs, two 192 kHz ADC pairs, dual S/PDIF outputs, a 2-channel digital microphone interface, and digital and an

High Definition Audio SoundMAX Codec

GENERAL DESCRIPTION The AD1984 family of audio codecs and SoundMAX® software provides superior High Definition audio quality that exceeds Vista Premium performance. The AD1984 has four 192 kHz DACs, four 192 kHz ADCs, S/PDIF output, a four-channel digital microphone interface, Digital Beep and an