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TC7258E

CategoryOther integrated circuit (IC)    The LED driver   
File Size172KB,4 Pages
ManufacturerFine Made Electronics Group Co., Ltd.
Websitehttp://www.superchip.cn/index.aspx
Shenzhen Fuman Electronics Group Co., Ltd. was founded in 2001. It is a national high-tech enterprise engaged in the design, development, packaging, testing and sales of high-performance analog and mixed-signal integrated circuits. It currently has more than 400 IC products in the consumer field, including power management, LED driver, MOSFET, etc.
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此文档权利由FM富满享有,您也可访问FM富满官方½站获取;立创商城 WWW.SZLCSC.COM,中½领先的现货元器件交易平台。
TC7258E
(文件编号:S&CIC1475)
概述
8
通道
LED
显示屏行扫描消隐控制驱动芯片
TC7258E
是一款专为
LED
屏幕行扫描屏设计的一款
8
通道消隐控制驱动
IC,它内部集成了
行消隐电路,
74HC138
三八译码器和功率管。
TC7258E
在功率管关闭时内部下拉管会打开并以恒定电流吸收行线上的残留电荷,
½消除拖½
现象,同时还½改善由于
LED
漏电、短路造成的毛毛虫现象。TC7258E 特有的专利技术½够更完全
消除鬼½现象, 是市面上
LED
屏行扫描显示效果最½的芯片。
TC7258E
采用
SOP16
的封装½式,内部集成了防烧功率管。
特点
集成
138
译码器
集成
8
个功率管,导通阻抗
120
毫欧,最大电流
3A。
集成防烧功率管,有过流和和短路保护。
内建消隐电路(专利号:201611109862.3),可消除
LED
上拖½现象
改善
LED
漏电及短路造成的毛毛虫现象
采用
SOP-16
封装
引脚定义及说明
VDD 1
C
2
16 B
15 A
14 OUT8
13 OUT7
12 OUT6
11 OUT5
10 ENL
9 VDD
OUT1 3
OUT2 4
OUT3 5
OUT4 6
ENH 7
GND 8
SOP-16
序号
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
引脚名称
VDD
C
OUT1
OUT2
OUT3
OUT4
ENH
GND
VDD
ENL
OUT5
OUT6
OUT7
OUT8
A
B
引脚说明
电源输入端
C
地址线
电压输出端
电压输出端
电压输出端
电压输出端
½½高电平
芯片地
电源输入端
½½½电平
电压输出端
电压输出端
电压输出端
电压输出端
A
地址线
B
地址线
注意事项:PIN1 和
PIN9
½是
VDD,½在 IC
内部是没有相互连接的,布板时需要相互连接
www.superchip.cn
1
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