5秒后页面跳转
捷配首页

Datasheet > TNY254G
TNY254G PDF预览

TNY254G

更新时间： 2024-02-15 12:59:09
品牌 Logo 应用领域
帕沃英蒂格盛 - POWERINT 开关光电二极管
页数 文件大小 规格书
20页 498K
描述
TinySwitch Family Energy Efficient, Low Power Off-line Switchers

阅读下载

获取价格

TNY254G 技术参数

是否Rohs认证： 符合生命周期：Not Recommended
零件包装代码：DIP包装说明：0.300 INCH, PLASTIC, DIP-8
针数：8Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
Factory Lead Time：14 weeks风险等级：7.79
模拟集成电路 - 其他类型：SWITCHING REGULATORJESD-30 代码：R-PDIP-T8
JESD-609代码：e3长度：9.59 mm
功能数量：1端子数量：8
最高工作温度：125 °C最低工作温度：-40 °C
最大输出电流：0.4 A封装主体材料：PLASTIC/EPOXY
封装代码：DIP封装等效代码：DIP8,.3
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：4.45 mm子类别：Power Management Circuits
最大供电电流 (Isup)：0.2 mA表面贴装：NO
切换器配置：SINGLE最大切换频率：48 kHz
温度等级：AUTOMOTIVE端子面层：PURE 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 mmBase Number Matches：1

TNY254G 数据手册

 浏览型号TNY254G的Datasheet PDF文件第2页浏览型号TNY254G的Datasheet PDF文件第3页浏览型号TNY254G的Datasheet PDF文件第4页浏览型号TNY254G的Datasheet PDF文件第6页浏览型号TNY254G的Datasheet PDF文件第7页浏览型号TNY254G的Datasheet PDF文件第8页 
TNY253/254/255  
V
EN  
CLOCK  
V
0 V  
IN  
DC  
MAX  
I
DRAIN  
V
DRAIN  
0 V  
0
.2  
.4  
.6  
.8  
1
Time (ms)  
V
DRAIN  
Figure 7. TinySwitch Power-Up Timing Diagram.  
PI-2261-061198  
V
IN  
Figure 6. TinySwitch Operation at Light Load.  
130 kHz Switching Frequency (TNY255)  
12 V  
The switching frequency (with no cycle skipping) is set at  
130kHz. This allows the TNY255 to deliver 10W while still  
usingthesamesize, lowcosttransformer(EE16)asusedbythe  
TNY253/254 for lower power applications.  
0 V  
V
DRAIN  
BYPASS Pin Capacitor  
The BYPASS pin uses a small 0.1 µF ceramic capacitor for  
decoupling the internal power supply of the TinySwitch.  
12 V  
0 V  
500  
0
100  
200  
Time (ms)  
Figure 8. TinySwitch Power Down Timing Diagram.  
300  
400  
Application Examples  
Television Standby  
TinySwitch is an ideal solution for low cost, high efficiency  
standby power supplies used in consumer electronic products  
suchasTVs. Figure9showsa7.5 V,1.3 Wflybackcircuitthat  
uses TNY253 for implementing a TV standby supply. The  
circuit operates from the DC high voltage already available  
fromthemainpowersupply. Thisinputvoltagecanrangefrom  
120 to 375VDC depending on the input AC voltage range that  
the TV is rated for. Capacitor C1 filters the high voltage DC  
supply, and is necessary only if there is a long trace length from  
the source of the DC supply to the inputs of the TV standby  
circuit. The high voltage DC bus is applied to the series  
combination of the primary winding of T1 and the integrated  
high voltage MOSFET inside the TNY253. The low operating  
frequency of the TNY253 (44kHz), allows a low cost snubber  
circuitC2andR1tobeusedinplaceofaprimaryclampcircuit.  
In addition to limiting the DRAIN turn off voltage spike to a  
safevalue, theRCsnubberalsoreducesradiatedvideonoiseby  
loweringthedv/dtoftheDRAINwaveform,whichiscriticalfor  
video applications such as TV and VCR. On fixed frequency  
PWM and RCC circuits, use of a snubber will result in an  
undesirablefixedACswitchinglossthatisindependentofload.  
TheON/OFFcontrolontheTinySwitcheliminatesthisproblem  
by scaling the effective switching frequency and therefore,  
switching loss linearly with load. Thus the efficiency of the  
supply stays relatively constant down to a fraction of a watt of  
output loading.  
The secondary winding is rectified and filtered by D1 and C4 to  
create the 7.5V output. L1 and C5 provide additional filtering.  
The output voltage is determined by the sum of the optocoupler  
U2 LED forward drop (~ 1 V) and Zener diode VR1 voltage.  
The resistor R2, maintains a bias current through the Zener to  
improve its voltage tolerance.  
C
5
7/01  
12345678...20

下载PDF

与TNY254G相关器件

型号 品牌 描述 获取价格 数据表
TNY254GN POWERINT Energy Efficient, Low Power Off-line Switchers

获取价格
TNY254GN-TL POWERINT Energy Efficient, Low Power Off-line Switchers

获取价格
TNY254G-TL POWERINT IC OFFLINE SWIT OTP OCP HV 8SMD

获取价格
TNY254P POWERINT TinySwitch Family Energy Efficient, Low Power Off-line Switchers

获取价格
TNY254PN POWERINT Energy Efficient, Low Power Off-line Switchers

获取价格
TNY255 POWERINT TinySwitch Family Energy Efficient, Low Power Off-line Switchers

获取价格

与TNY254G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