使用 TB62777FNG 8 通道恒流 LED 驱动器在 3.3V 和 5V 电源电压下工作的 LED 动态照明的典型应用
使用 Toshiba 的 TB62777FNG 的参考设计
设计简介
使用工作电源电压为 3.3V 和 5V 的 TB62777FNG 8 通道恒流 LED 驱动器实现 LED 动态照明的典型应用。 TB62777FNG 由专为 LED 和 LED 面板显示器设计的恒流驱动器组成。稳压电流源旨在提供恒定电流,该电流可通过一个外部电阻器进行调节。 TB62777FNG 包含八个通道的移位寄存器、锁存器、与门和恒流输出
说明
Typical Application for Dynamic Lighting of LEDs Using TB62777FNG 8-Channel Constant-Current LED Driver of the 3.3V and 5V Power Supply Voltage Operation. The TB62777FNG is comprised of constant-current drivers designed for LEDs and LED panel displays. The regulated current sources are designed to provide a constant current, which is adjustable through one external resistor. The TB62777FNG incorporates eight channels of shift registers, latches, AND gates and constant-current outputs