4通道LED恒流驱动专用电路

TM1815B是四通道LED恒流可调的驱动IC，可由MCU输入一组恒流设置与PWM设置的数据到TM1815B实现各式各样的显示。芯片内部集成有MCU数字接口、数据锁存器、LED恒流驱动等电路。VDD引脚内部集成5V稳压管，外围器件少。本产品性能优良，质量可靠。 \n• 采用功率CMOS工艺\n• OUT输出端口耐压32V\n• VDD内置5V稳压管，串接电阻后电压支持6～24V\n• 恒流电流能够实现64级调节（6.5mA—38mA）\n• PWM辉度控制电路，256级辉度可调\n• 精确的电流输出值\n• 单线串行级联接口\n• 振荡方式：内置RC振荡并根据数据线上信号进行时钟同步，在接收完本单元的数据后能自动将后续数据再生并通过数据输出端发送至下级,信号不随级联变远而出现失真或衰减\n• 内置上电复位电路，上电复位后所有寄存器初始化为零\n• 数据传输速率400KHz\n• 封装形式：SOP8\n\n ;

TM

天微

PWMVID Console

文件：551.81 Kbytes 页数：7 Pages

UPI

力智电子

MOS FIELD EFFECT TRANSISTOR

DESCRIPTION The μPA1815 is a switching device which can be driven directly by a 2.5-V power source. The μPA1815 features a low on-state resistance and excellent switching characteristics, and is suitable for applications such as power switch of portable machine and so on. FEATURES • Can be

文件：199.53 Kbytes 页数：10 Pages

RENESAS

瑞萨

P-CHANNEL MOS FIELD EFFECT TRANSISTOR FOR SWITCHING

DESCRIPTION The µPA1815 is a switching device which can be driven directly by a 2.5-V power source. The µPA1815 features a low on-state resistance and excellent switching characteristics, and is suitable for applications such as power switch of portable machine and so on. FEATURES • Can be dri

文件：68.7 Kbytes 页数：8 Pages

NEC

瑞萨