LED背光驱动

ET5123 是一颗多功能的恒定电流LED 驱动器，采用高效DC-DC 升压转换器架构。此电路集成功率MOSFET，使外部元件总数最小。ET5123 驱动输出达到37V（10 颗LED 串联）。另外，在驱动每串3 颗LED 串联时，ET5123 能输出180mA 的总电流。高的转换效率，使它的输出电流能力最大化。经过优化的0.7MHz 开关频率,使驱动器外围可以采用小尺寸元件。驱动器在CTRL 脚可输入一个较宽频率范围的PWM 调光信号。\r\n\r\n ET5123 内置了多种保护功能，包括逐个周期输入电流限制保护，过压保护和热关断保护。关机模式的漏电流小于1μA。 ● 宽输出电压范围：可驱动10 颗串联的LED\r\n\r\n● 集成40V 大电流MOSFET 开关（限流880mA）\r\n\r\n● 输入电压范围：2.7V~5.5V\r\n\r\n● 高效率PWM 升压转换器（可达90%）\r\n\r\n● 较低的反馈电压：200mV\r\n\r\n● 整个负载范围内高精度输出\r\n\r\n● 过压保护（OVP）：37V\r\n\r\n● 0.7MHz 开关频率\r\n\r\n● PWM 调光频率：10kHz~200kHz\r\n\r\n● 关机电流小于1μA\r\n\r\n● 封装形式：TDFN-2×2-6L(ET5123)，TSOT23-;

Product Brief 12MHz 4-, 8-, 10- & 12-Channel Rail-to-Rail Input-Output Buffers

General Description The EL5123C, EL5223C, EL5323C, and EL5423C are low power, high voltage rail-to-rail input/output buffers designed primarily for use in reference voltage buffering applications for TFT_LCDs. They are available in quad (EL5123C), octal (EL5223C), 10-channel (EL5323C), and 12-c

Product Brief 12MHz 4-, 8-, 10- & 12-Channel Rail-to-Rail Input-Output Buffers

General Description The EL5123C, EL5223C, EL5323C, and EL5423C are low power, high voltage rail-to-rail input/output buffers designed primarily for use in reference voltage buffering applications for TFT_LCDs. They are available in quad (EL5123C), octal (EL5223C), 10-channel (EL5323C), and 12-c

Low-Voltage, Single Supply, Dual SPST, SPDT Analog Switches

Low-Voltage, Single Supply, Dual SPST, SPDT Analog Switches The Intersil ISL5120, ISL5121, ISL5122, ISL5123 devices are precision, bidirectional, dual analog switches designed to operate from a single +2.7V to +12V supply. Targeted applications include battery powered equipment that benefit from

Low-Voltage, Single Supply, Dual SPST, SPDT Analog Switches

Low-Voltage, Single Supply, Dual SPST, SPDT Analog Switches The Intersil ISL5120, ISL5121, ISL5122, ISL5123 devices are precision, bidirectional, dual analog switches designed to operate from a single +2.7V to +12V supply. Targeted applications include battery powered equipment that benefit from

Transmissive Optical Sensor with Phototransistor Output

Description These devices have a compact construction where the emitting-light sources and the detectors are located face-to-face on the same optical axis. The operating wavelength is 950 nm. The detector consists of a phototransistor. Due to the special construction, the depth of the gap is equ