芯片概述

   DM114是專為LED顯示應(yīng)用所設(shè)計的橫流驅(qū)動芯片。8個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

           輸出承受電壓：17V

           時鐘頻率：25MHZ(級聯(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)動器ST2221A完全兼容（每個特征值不同）

          恒流性：（TA=25

芯片間輸出電流 差異值：Chip-to Chip:±10.0

                                      Bit-to-Bit:±4.0 @ IOUT=30-90Ma

                                                 ±6.0

 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

                                Chip-to Chip:±10.0

                      Bit-to-Bit:

                                     DM134:±4.0 @ IOUT=30-90MA

                                    ±6.0

                                      DM135:±4.0 @ IOUT=10-50Ma

                                             ±6.0

                                      DM136:±4.0 @ IOUT=3-15mA