护栏管驱动IC,DM134_16位恒流驱动IC

16位恒流驱动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