| 品牌 | siti | 型號(hào) | dm114 |
| 批號(hào) | 0946 | 封裝 | ssop-16 |
| 營(yíng)銷方式 | 現(xiàn)貨 | 產(chǎn)品性質(zhì) | 熱銷 |
| 處理信號(hào) | 數(shù)字信號(hào) | 工藝 | 半導(dǎo)體集成 |
| 導(dǎo)電類型 | 雙極型 | 集成程度 | 大規(guī)模 |
| 工作溫度 | -40~85（℃） |
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led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-to chip:±10.0%
bit-to-bit:±4.0% @ iout=30-90ma
±6.0%@iout=20-30ma
dm134 dm135 dm136
16-bit constant current led drivers
general description
the dm134 dm135 dm136 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
● 5v cmos compatible input
● maximum clock frequency: 25mhz(cascade operation)
● maximum output voltage: 17v
● package: dip24, sop24, ssop24, qfn32,
tssop24-exposedpad(dm135)
● package and pin layout: pin layout and functionality are similar to those of the st2221c(each characteristic value is different.)
● constant current matching（ta=25℃`vdd=5.0v）
chip-to chip:±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