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TPS23770PWP PDF预览

TPS23770PWP

更新时间： 2024-11-14 22:37:07
品牌 Logo 应用领域
德州仪器 - TI 稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管
页数 文件大小 规格书
38页 2852K
描述
INTEGRATED 100-V IEEE 802.3af PD AND DC/DC CONTROLLER

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TPS23770PWP 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active零件包装代码：TSSOP
包装说明：HTSSOP, TSSOP20,.25针数：20
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：6 weeks
风险等级：5.17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：67 V最小输入电压：
标称输入电压：48 VJESD-30 代码：R-PDSO-G20
JESD-609代码：e4长度：6.5 mm
湿度敏感等级：2功能数量：1
端子数量：20最高工作温度：85 °C
最低工作温度：-40 °C最大输出电流：1.3 A
封装主体材料：PLASTIC/EPOXY封装代码：HTSSOP
封装等效代码：TSSOP20,.25封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH峰值回流温度（摄氏度）：260
认证状态：Not Qualified座面最大高度：1.2 mm
子类别：Switching Regulator or Controllers表面贴装：YES
切换器配置：SINGLE最大切换频率：565 kHz
温度等级：INDUSTRIAL端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式：GULL WING端子节距：0.65 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：4.4 mmBase Number Matches：1

TPS23770PWP 数据手册

 浏览型号TPS23770PWP的Datasheet PDF文件第2页浏览型号TPS23770PWP的Datasheet PDF文件第3页浏览型号TPS23770PWP的Datasheet PDF文件第4页浏览型号TPS23770PWP的Datasheet PDF文件第5页浏览型号TPS23770PWP的Datasheet PDF文件第6页浏览型号TPS23770PWP的Datasheet PDF文件第7页 
TPS23750  
TPS23770  
www.ti.com  
SLVS590A–JULY 2005–REVISED AUGUST 2005  
INTEGRATED 100-V IEEE 802.3af PD AND DC/DC CONTROLLER  
FEATURES  
DESCRIPTION  
•
Complete 802.3af PoE Interface  
The TPS23750 integrates the functionality of the  
TPS2375 with a primary-side dc/dc PWM controller.  
The designer can create a front-end solution for  
PoE-PD applications with minimum external  
components. The TPS23770 is identical to the  
TPS23750 with the exception of the undervoltage  
lockout turn-on voltage, which is compatible with  
legacy systems.  
– Features derived from the TPS2375  
– 100 V, 0.6 Ω Internal Pass MOSFET  
– Standard and Legacy UVLO Choices  
– Fixed 140 mA Inrush Limit  
•
Primary Side DC/DC Converter Control  
– Minimum External Component Count  
– Current Mode Control  
The PoE front end has all the necessary IEEE  
802.3af functions including detection, classification,  
undervoltage lockout and inrush control. The PoE  
input switch is integrated within the TPS23750.  
– Isolated and Non-Isolated Topologies  
– Programmable Operating Frequency  
– Current Sense Leading-edge Blanking  
– 50% Duty Cycle Limiting  
The dc/dc controller section is designed to support  
flyback, forward, and nonsynchronous low-side switch  
buck topologies.  
– Voltage Output Error Amplifier  
The external switching MOSFET and current sense  
resistor provide flexibility in topology, power level, and  
current limit. The full-featured dc/dc controller in-  
cludes programmable soft start, hiccup type fault  
limiting, 50% maximum duty cycle, programmable  
•
•
•
Internal PoE and Converter Sequencing  
Industry-Standard 20 Lead Package  
Industrial Temperature Range: –40°C to 85°C  
APPLICATIONS  
•
constant switching frequency, and  
a true volt-  
age-output error amplifier. Additional protection fea-  
tures provide for robust designs.  
All PoE PD Devices Including:  
– Wireless Access Points  
– VoIP Phones  
– Security Cameras  
V
DD  
DET  
CLASS  
Low Voltage  
Isolated  
V
SS  
Output  
AUX  
COMP  
BL  
V
MODE  
BIAS  
V
BIAS  
V
BIAS  
FREQ  
GATE  
TMR  
RSP  
TLV431  
Figure 1. Typical Application  
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.  
PowerPAD is a trademark of Texas Instruments.  
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 © 2005, Texas Instruments Incorporated  
 
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TPS23770PWP 替代型号

型号 品牌 替代类型 描述 数据表
TPS23750PWPRG4 TI

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 INTEGRATED 100-V IEEE 802.3af PD AND DC/DC CONTROLLER
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 INTEGRATED 100-V IEEE 802.3af PD AND DC/DC CONTROLLER

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