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橫流驅(qū)動(dòng)芯片工作電壓3.3V-5V 芯片概述 DM114是專為L(zhǎng)ED顯示應(yīng)用所設(shè)計(jì)的橫流驅(qū)動(dòng)芯片。8個(gè)輸出通道的電流可由一外掛電阻調(diào)整。內(nèi)建8比特移位緩存器，數(shù)據(jù)鎖存器，以及橫流電路組件于硅CMOS芯片上。 芯片特色 ● 最大輸出承受電壓：17V● 最大時(shí)鐘頻率：25MHZ(級(jí)聯(lián)操作)● 芯片工作電壓：3.3V-5.0V● COMS兼容輸入● 封裝形式：PDIP16,SOP16,SSOP16● 封裝及管腳定義與通用16腳LED橫流驅(qū)動(dòng)器ST2221A完全兼容（每個(gè)特征值不同）● 恒流性：（TA=25℃`VDD=5.0V）芯片間輸出電流最大差異值：Chip-toChip: 10.0% Bit-to-Bit: 4.0%@IOUT=30-90Ma 6.0%@IOUT=20-30Ma