TM1620/TM1637/TM1668等LED數(shù)碼管驅(qū)動芯是一種用于小家電、機(jī)頂盒、電子稱等產(chǎn)品的LED數(shù)碼管驅(qū)動芯片,可替代傳統(tǒng)數(shù)碼管驅(qū)動芯片74HC164,4094,374加三極管和電阻構(gòu)成的驅(qū)動電路,成本低。TM1620/TM1637/TM1668等LED數(shù)碼管驅(qū)動芯無需加三極管及電阻而直接驅(qū)動LED數(shù)碼管/數(shù)碼屏,且驅(qū)動電流大(8級輝度可調(diào))。