led显示屏驱动ic dm134

16位驱动ic 主要用于led屏幕及护栏管

高性价比新版通用16位恒流驱动ic，dm134

iout = 5~90ma, voutmax) = 17v n 绝佳的恒流精度：信道对信道：±3%；芯片对芯片：±6% n 具独步全球的led开／短路在线自检功能：100ns(min) 的快速侦测反馈， 无须切换操作模式，不影响画面品质 n 具过温断电功能(180°c) n 输出通道分时使能，可有效降低emi n 与dm134／5／a、st2221c完全兼容，新推出sop封装(脚间距1.0 mm)

general description
the dm134b、dm135b are constant current drivers specifically designed for led display applications. the value of constant current can be varied using an external resistor. the devices include a 16-bit shift register, latches, and constant current drivers on a single silicon cmos chip.

features
3.3v~5v cmos compatible input maximum clock frequency: 25mhz (cascade operation) maximum output voltage: package: package and pin layout: 17v dip24, sop24, ssop24, qfn32 pin layout and functionality are similar to those of the st2221c. (each characteristic value is different.) constant current matching: (ta = 25°c、vdd = 5.0v) chip-to-chip: ± 10.0% bit-to-bit: dm134b:± 4.0% @ iout = 30 ~ 90ma ± 6.0% @ iout = 20 ~ 30ma dm135b:± 4.0% @ iout = 20 ~ 60ma ± 6.0% @ iout = 5 ~ 20ma

16-bit constant current led drivers