高压, 大电流, 多拓扑 LED 驱动控制器

RT8485 是经外推 MOSFET 提供大电流 LED 驱动应用的电流模式 PWM 控制器，其电流检测放大器的阈值为 315mV，使用一只外接电阻即可设定其输出电流。其最高工作输入电压为 36V，最高输出电压则可高达 150V，是 Buck、Boost 和 Buck-Boost 应用的理想选择。其开关切换工作频率为 100kHz~1MHz 可调，在维持高效工作的同时，可以使用小型电感和电容。调光操作可用模拟或数字方式进行，它内置的限幅比较器和滤波器可将数字式调光转换为无噪声的模拟调光，仅需使用一只电容进行配合即可。RT8485 的封装为 SOP-14。 • 具备高压工作能力：VIN 高达 36V，LED 电流检测端共模电压可高达 150V\n• 工作频率可调\n• 可编程软启动，避免冲击电流\n• VIN 欠压锁定和过热保护\n• 符合 RoHS 规范，不含卤素;

Richtek

立锜科技

Package：14-SOIC（0.154"，3.90mm 宽）；包装：管件 类别：集成电路（IC） LED 驱动器 描述：IC LED DRIVER CTRLR PWM 14SOP

Richtek USA Inc.

± 12K ESD Protection, Full Fail-Safe RS-485 Transceiver

Features ◼ Exceeds Requirements of EIA-485 Standard ◼ Hot Plug Circuitry - Tx and Rx Outputs Remain Three-State During Power-up/Power-down ◼ Data Rate: Up to 250 kbps ◼ Full Fail-safe (Open, Short, Terminated) Receivers ◼ Up to 256 Nodes on a Bus (1/8 unit load) ◼ Wide Supply Voltage 3V to

文件：804.82 Kbytes 页数：17 Pages

3PEAK

思瑞浦

± 12K ESD Protection, Full Fail-Safe RS-485 Transceiver

Features ◼ Exceeds Requirements of EIA-485 Standard ◼ Hot Plug Circuitry - Tx and Rx Outputs Remain Three-State During Power-up/Power-down ◼ Data Rate: Up to 250 kbps ◼ Full Fail-safe (Open, Short, Terminated) Receivers ◼ Up to 256 Nodes on a Bus (1/8 unit load) ◼ Wide Supply Voltage 3V to

文件：804.82 Kbytes 页数：17 Pages

3PEAK

思瑞浦

± 12K ESD Protection, Full Fail-Safe RS-485 Transceiver

Features ◼ Exceeds Requirements of EIA-485 Standard ◼ Hot Plug Circuitry - Tx and Rx Outputs Remain Three-State During Power-up/Power-down ◼ Data Rate: Up to 250 kbps ◼ Full Fail-safe (Open, Short, Terminated) Receivers ◼ Up to 256 Nodes on a Bus (1/8 unit load) ◼ Wide Supply Voltage 3V to

文件：804.82 Kbytes 页数：17 Pages

3PEAK

思瑞浦