DM134DM135DM13616-BitconstantcurrentleddriversGeneralDescription TheDM134DM135DM136areconstantcurrentdriversspecificallydesignedforLEDdisplayapplications.Thevalueofconstantcurrentcanbevariedusinganexternalresistor.Thedevicesincludea16-bitshiftRegister,latches,andconstantcurrentdriversonasinglesiliconCMOSchip. Features● 5VCMOSCompatibleInput● MaximumClockfrequency:25MHZ(CascadeOperation)● MaximumOutputVoltage:17v● Package: DIP24,SOP24,SSOP24,QFN32, TSSOP24-exposedPAD(DM135)● Packageandpinlayout: PinlayoutandfunctionalityaresimilartothoseoftheST2221C(Eachcharacteristicvalueisdifferent.)● Constantcurrentmatching（TA=25℃`VDD=5.0V） Chip-toChip: 10.0% Bit-to-Bit: DM134: 4.0%@IOUT=30-90MA 6.0%@IOUT=20-30MA DM135: 4.0%@IOUT=10-50Ma 6.0%@IOUT=5-10mA DM136: 4.0%@IOUT=3-15mA DM114 8位LED横流驱动芯片工作电压3.3V-5V 芯片概述 DM114是专为LED显示应用所设计的横流驱动芯片。8个输出通道的电流可由一外挂电阻调整。内建8比特移位缓存器，数据锁存器，以及横流电路组件于硅CMOS芯片上。 芯片特色 ● 最大输出承受电压：17V● 最大时钟频率：25MHZ(级联操作)● 芯片工作电压：3.3V-5.0V● COMS兼容输入● 封装形式：PDIP16,SOP16,SSOP16● 封装及管脚定义与通用16脚LED横流驱动器ST2221A完全兼容（每个特征值不同）● 恒流性：（TA=25℃`VDD=5.0V）芯片间输出电流最大差异值：Chip-toChip: 10.0% Bit-to-Bit: 4.0%@IOUT=30-90Ma 6.0%@IOUT=20-30Ma