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电路设计->电源电路图->其他电源电路图->STAP16DPPS05参考设计电路|LED显示驱动器应用电路

STAP16DPPS05参考设计电路|LED显示驱动器应用电路

作者:沉默的offer时间:2018-07-30浏览次数:142

STAP16DPPS05LED显示驱动器集成电路是单片、低电压、低电流、16位移位寄存器,用于LED面板显示屏。此篇主要介绍了STAP16DPPS05特性、应用范围、参考设计电路以及电路分析,帮助大家缩短设计时间。

STAP16DPPS05特性:低至3V的低电压电源;16个恒定电流输出通道;可通过外部寄存器调节的输出电流;短路和开路输出错误检测;串行数据IN/并行数据OUT;

能驱动3.3V微控制器

STAP16DPPS05典型应用范围:蓝牙STLC2690;移动电话

STAP16DPPS05参考设计应用电路:

图1STAP16DPPS05内部结构图

The STAP16DPPS05 is a monolithic, low voltage,low current power 16-bit shift register designed for LED panel displays. The STAP08DP05 contains an 16-bit serial-in, parallel-out shift register that feeds an 16-bit D-type storage register. In the output stage, eight regulated current sources are designed to provide 5-100 mA constant current to drive the LEDs.

图2STAP16DPPS05参考设计图

The STAP16DPPS05 features the open and short LED detection on the outputs. The detection circuit checks 3 different conditions which may occur on the output line: short to GND, short to VO or open line. The data detection results are loaded in the shift register and shifted out via the serial line output. The detection functionality is implemented without increasing the pin number through a secondary function of the output enable and latch pin (DM1 and DM2 respectively). A dedicated logic sequence allows the device to enter or leave detection mode. Through an external resistor, users can adjust the output current of the STP16DPPS05 thus controlling the light intensity of the LEDs. In addition, the user can adjust the intensity of the brightness of the LED’s from 0% to 100% through the OE/DM2 pin.

STAP16DPPS05中文数据手册:点击下载

更多原理图及源代码热门应用电路:立刻点击


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