dd233 5-30ma可设置小体开关型4信道驱动IC
the dd233 is a 4-channel constant current led driver. it””s designed to operate as a constant-current sink to drive the leds with an external resistance in low power environment. because the dd233 directly determines output current by each channel in low bit-to-bit skew, it is ideal for driving led whose light intensity is proportional to the current passing through them, not the voltage across their terminals. the enable provides the low power stand by function for mobile applications.
this configuration eliminates the need of external capacitors and inductances. with an input voltage range of 2.7v to 6v, so the device can work in general battery system. the value of constant current can be varied using an external resistor (iout)
features: constant current output, 5~30ma. supply voltage vdd is 2.7v to 6v. bit-to-bit :±3.0% (max) @ iout= 5 ~ 30ma. 8-pin sop8 or msop8 package.
applications:digital cameras. portable mp3 players. white led display backlighting. cellular telephones. handheld computers. pagers. personal digital assistant. e-books and sub notebooks
dd311 单信道大功率恒流驱动ic最大1a最高耐压36v线性恒流ic
dd312 单信道大功率恒流驱动ic最大1a最高耐压18v线性恒流ic
dd313 三信道大功率恒流驱动ic 500ma r/g/b恒流驱动ic
dm412 三通道装饰照明专用可直接数据级联恒流ic 200ma r/g/b恒流驱动ic
dm413 三通道装饰照明专用pwm输出驱动ic 100ma r/g/b恒流驱动ic
dm114a,dm115a 新版8位驱动ic 主要是用于屏幕及灯饰
dm115b通用8位恒流驱动ic 恒流一致性及稳定性高
dm11c 8位驱动ic 具有短断点侦测及温度保护功能，屏幕灯饰使用
dm13c 16位驱动ic 具有短断点侦测及温度保护功能，屏幕灯饰使用 mbi5024gf tb62726afg
dm13a 16位恒流驱动，面对低端屏幕客户
dm132 16位1024级pwm输出驱动ic
dm133 16位开路检测&64级电流调整&过温警示驱动ic
dm134,dm135, dm136 16位驱动ic 主要用于led屏幕及护栏管
dm137 16位开,短路,过温智能侦测驱动ic
dm163 8x3信道4096级pwm驱动ic
dd211 二倍升压驱动ic 2-3.3v 最大升压100ma固定式恒流ic
dd212 1.5-5.5v二倍升压最大400ma电流输出驱动单颗led恒流ic
dd231 3信道驱动ic 5-30ma 可设置小体上电即亮型ic
dd233 4信道驱动ic 5-30ma 可设置小体、可开关型ic
pc112,pc113 2.8-5v四倍升压驱动20ma小功率多颗led恒流ic
st2225a 35输出信道之数字/字母led驱动芯片
详细规格书请参阅：http://www.yuketek.com/product/37.html