5秒后页面跳转
捷配首页

Datasheet > LT1246CN8
LT1246CN8 PDF预览

LT1246CN8

更新时间： 2024-02-25 03:35:44
品牌 Logo 应用领域
凌特 - Linear 转换器
页数 文件大小 规格书
12页 291K
描述
1MHz Off-Line Current Mode PWM and DC/DC Converter

阅读下载

获取价格

LT1246CN8 技术参数

是否无铅： 含铅是否Rohs认证： 符合
生命周期：Active包装说明：DIP,
针数：8Reach Compliance Code：compliant
风险等级：5.33模拟集成电路 - 其他类型：SWITCHING CONTROLLER
控制模式：CURRENT-MODE控制技术：PULSE WIDTH MODULATION
最大输入电压：25 V最小输入电压：11 V
JESD-30 代码：R-PDIP-T8JESD-609代码：e3
湿度敏感等级：1功能数量：1
端子数量：8最高工作温度：70 °C
最低工作温度：最大输出电流：1 A
标称输出电压：2.5 V封装主体材料：PLASTIC/EPOXY
封装代码：DIP封装形状：RECTANGULAR
封装形式：IN-LINE峰值回流温度（摄氏度）：NOT SPECIFIED
认证状态：Not Qualified座面最大高度：3.937 mm
最大供电电流 (Isup)：20 mA表面贴装：NO
切换器配置：SINGLE最大切换频率：1000 kHz
技术：BIPOLAR温度等级：COMMERCIAL
端子面层：MATTE TIN端子形式：THROUGH-HOLE
端子节距：2.54 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：7.62 mm

LT1246CN8 数据手册

 浏览型号LT1246CN8的Datasheet PDF文件第2页浏览型号LT1246CN8的Datasheet PDF文件第3页浏览型号LT1246CN8的Datasheet PDF文件第4页浏览型号LT1246CN8的Datasheet PDF文件第5页浏览型号LT1246CN8的Datasheet PDF文件第6页浏览型号LT1246CN8的Datasheet PDF文件第7页 
LT1246/LT1247  
1MHz Off-Line  
Current Mode PWM  
and DC/DC Converter  
U
DESCRIPTIO  
EATURE  
S
F
The LT®1246/LT1247 are 8-pin, fixed frequency, current  
mode, pulse width modulators. These devices are de-  
signed to be improved plug compatible versions of the  
industry standard UC1842 PWM circuit. The LT1246/  
LT1247 are optimized for off-line and DC/DC converter  
applications. They contain a temperature compensated  
reference, high gain error amplifier, current sensing com-  
parator, and a high current totem pole output stage ideally  
suited to driving power MOSFETs. Start-up current has  
been reduced to less than 250µA. Cross-conduction cur-  
rent spikes in the totem pole output stage have been  
eliminated, making1MHzoperationpractical. Severalnew  
features have been incorporated. Leading edge blanking  
has been added to the current sense comparator. This  
minimizesoreliminatesthefilterthatisnormallyrequired.  
Eliminating this filter allows the current sense loop to  
operate with minimum delays. Trims have been added to  
the oscillator circuit for both frequency and sink current,  
and both of these parameters are tightly specified. The  
output stage is clamped to a maximum VOUT of 18V in the  
on state. The output and the reference output are actively  
pulled low during under-voltage lockout.  
■
■
■
■
■
■
■
■
■
■
■
Current Mode Operation to 1MHz  
30ns Current Sense Delay  
< 250µA Low Start-Up Current  
Current Sense Leading Edge Blanking  
Pin Compatible with UC1842  
Undervoltage Lockout with Hysteresis  
No Cross-Conduction Current  
Trimmed Bandgap Reference  
1A Totem Pole Output  
Trimmed Oscillator Frequency and Sink Current  
Active Pull-Down on Reference and Output During  
Undervoltage Lockout  
■
18V High Level Output Clamp  
O U  
PPLICATI  
S
A
■
Off-Line Converters  
DC/DC Converters  
■
Minimum  
Operating  
Voltage  
Start-Up  
Threshold  
Maximum  
Duty Cycle  
Device  
Replaces  
LT1246  
LT1247  
16V  
8.4V  
10V  
7.6V  
100%  
100%  
UC1842  
UC1843  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
W
BLOCK DIAGRA  
REFERENCE ENABLE  
UV  
LOCKOUT  
REFERENCE PULLDOWN  
5V REF  
MAIN BIAS  
8
7
V
V
REF  
CC  
OUTPUT  
PULLDOWN  
4
OSCILLATOR  
R /C  
T
T
S
R
6
5
OUTPUT  
GND  
5.6V  
1
2
COMPENSATION  
FEEDBACK  
1V  
1mA  
–
+
2R  
BLANKING  
1.5V  
–
2.5V  
18V  
R
+
–
+
3
I
SENSE  
LT1246 • BD01  
1
1234567...12

下载PDF

与LT1246CN8相关器件

型号 品牌 描述 获取价格 数据表
LT1246CS8 Linear 1MHz Off-Line Current Mode PWM and DC/DC Converter

获取价格
LT1246CS8#PBF Linear LT1246 - 1MHz Off-Line Current Mode PWM and DC/DC Converter; Package: SO; Pins: 8; Tempera

获取价格
LT1246CS8#TR Linear Switching Controller, Current-mode, 1A, 1000kHz Switching Freq-Max, BIPolar, PDSO8

获取价格
LT1246IN8 Linear IC SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDIP8, PLASTIC, DIP-8, Switching Reg

获取价格
LT1246IS8 Linear IC 1 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO8, PLASTIC, SOIC-8, Switchin

获取价格
LT1246MJ8 Linear IC 1 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, CDIP8, CERDIP-8, Switching Regul

获取价格

与LT1246CN8相关文章

您还可以找


热门产品
PCB打样/小批量
铝基板
BOM智能配单
PCBA制造
钣金
精密CNC
模具注塑
薄膜开关
精选活动
PCBA打样特惠
四六层板品质升级
铝基板品质升级
一体化电子制造
DFM下载
服务支持
企业认证
产品展示
工厂展示
工艺能力
积分商城
关于捷配
捷配简介
企业文化
公司动态
人才招聘
联系我们
帮助中心
下单流程
付款流程
开票流程
常见问题
全球PCB制造服务专线 400-613-0088

工作时间：9:00-21:00

CEO邮箱：ceo@jiepei.com

投诉邮箱：tousu@jiepei.com

捷配网-微信公众号 微信公众号
捷配网-微信公众号 抖音公众号
资质认证：
合作快递：
支付方式：
Copyright © 2024 Jiepei.com Inc. All Rights Reserved. 版权所有:杭州捷配信息科技有限公司 浙公网安备 33010502006866号 浙ICP备10014259号-119 营业执照ICP证