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LM2485NA/NOPB PDF预览

LM2485NA/NOPB

更新时间： 2024-09-20 14:52:27
品牌 Logo 应用领域
德州仪器 - TI 光电二极管逻辑集成电路
页数 文件大小 规格书
12页 531K
描述
IC,VOLTAGE CLAMP,DIP,24PIN,PLASTIC

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LM2485NA/NOPB 技术参数

是否Rohs认证：符合生命周期：Obsolete
包装说明：DIP, DIP24,.3Reach Compliance Code：compliant
风险等级：5.84Is Samacsys：N
JESD-30 代码：R-PDIP-T24JESD-609代码：e3
逻辑集成电路类型：LOGIC CIRCUIT湿度敏感等级：1
端子数量：24最低工作温度：-20 °C
封装主体材料：PLASTIC/EPOXY封装代码：DIP
封装等效代码：DIP24,.3封装形状：RECTANGULAR
封装形式：IN-LINE电源：8,220 V
认证状态：Not Qualified子类别：Other Logic ICs
表面贴装：NO端子面层：Matte Tin (Sn)
端子形式：THROUGH-HOLE端子节距：2.54 mm
端子位置：DUALBase Number Matches：1

LM2485NA/NOPB 数据手册

 浏览型号LM2485NA/NOPB的Datasheet PDF文件第2页浏览型号LM2485NA/NOPB的Datasheet PDF文件第3页浏览型号LM2485NA/NOPB的Datasheet PDF文件第4页浏览型号LM2485NA/NOPB的Datasheet PDF文件第5页浏览型号LM2485NA/NOPB的Datasheet PDF文件第6页浏览型号LM2485NA/NOPB的Datasheet PDF文件第7页 
OBSOLETE  
LM2485  
www.ti.com  
SNOSAC9B –DECEMBER 2004–REVISED APRIL 2013  
LM2485 220V Triple Bias Clamp with G1 Blank Amplifier  
Check for Samples: LM2485  
1
FEATURES  
DESCRIPTION  
The LM2485 is a triple channel clamp amplifier used  
2
•
•
•
•
VCC Capable of up to 220V  
to DC restore the AC coupled outputs of a DTV CRT  
driver and for cut-off adjustment. The LM2485 also  
has an integrated blanking amplifier that can be used  
to drive the G1 grid of a CRT negative for vertical  
VBB Selectable to 8V or 12V via Pin 12 Option  
Wide Bias Output Voltage Range of Over 100V  
Inverted Output Pulse Suitable for G1  
Blanking, Selectable to 20VP-P or 40VP-P via Pin  
13 Option  
retrace blanking. The blanking output has  
a
selectable pulse amplitude of either 20VP-P or 40VP-P  
via the Pin 13 option. The blanking input pulse can be  
generated from a vertical flyback pulse or by a  
microcontroller.  
APPLICATIONS  
•
AC Coupled CRT Applications Using DTV  
Formats up to 1080i  
The LM2485 can operate with a VCC supply of up to  
220V and a VBB supply of either 8V or 12V. This VBB  
option, selectable via the Pin 12 option, ensures the  
LM2485 is compatible with any TI DTV CRT driver  
sharing the same operating voltages in the  
application.  
•
Well-Matched to the NSC LM12XX Family of  
Preamplifiers and LM242X/3X/5X Family of  
DTV CRT Drivers  
The IC is packaged in an industry standard 24-lead  
molded plastic dual-in-line package to meet high  
voltage spacing requirements.  
Pinout and Internal Block Diagram  
V
V
OUT2  
V
OUT3  
V
CC  
VB  
OUT  
N/C  
N/C  
N/C  
N/C  
N/C  
GND  
S40  
OUT1  
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
14  
13  
Clamp Amplifier  
Blanking Amplifier  
V
BB  
Option  
1
2
3
4
5
6
7
8
9
10  
11  
12  
N/C  
N/C  
N/C  
GND  
N/C  
N/C  
S12  
V
IN1  
V
V
V
BB  
VB  
IN  
IN2  
IN3  
PDIP Package - Top View  
See Package Number NAM  
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam  
during storage or handling to prevent electrostatic damage to the MOS gates.  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
All trademarks are the property of their respective owners.  
2
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2004–2013, Texas Instruments Incorporated  
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