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UC2902DTRG4 PDF预览

UC2902DTRG4

更新时间： 2024-01-03 17:07:20
品牌 Logo 应用领域
德州仪器 - TI 光电二极管
页数 文件大小 规格书
8页 171K
描述
1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, GREEN, SOIC-8

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中文翻译

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UC2902DTRG4 技术参数

是否无铅：不含铅是否Rohs认证：符合
生命周期：Obsolete零件包装代码：SOIC
包装说明：GREEN, SOIC-8针数：8
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.16
Is Samacsys：N可调阈值：YES
模拟集成电路 - 其他类型：POWER SUPPLY SUPPORT CIRCUITJESD-30 代码：R-PDSO-G8
JESD-609代码：e4长度：4.9 mm
湿度敏感等级：1信道数量：1
功能数量：1端子数量：8
最高工作温度：85 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：SOP
封装等效代码：SOP8,.25封装形状：RECTANGULAR
封装形式：SMALL OUTLINE峰值回流温度（摄氏度）：260
电源：5 V认证状态：Not Qualified
座面最大高度：1.75 mm子类别：Power Management Circuits
最大供电电流 (Isup)：10 mA最大供电电压 (Vsup)：20 V
最小供电电压 (Vsup)：2.7 V标称供电电压 (Vsup)：5 V
表面贴装：YES技术：BIPOLAR
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：1.27 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：3.9 mmBase Number Matches：1

UC2902DTRG4 数据手册

 浏览型号UC2902DTRG4的Datasheet PDF文件第2页浏览型号UC2902DTRG4的Datasheet PDF文件第3页浏览型号UC2902DTRG4的Datasheet PDF文件第4页浏览型号UC2902DTRG4的Datasheet PDF文件第5页浏览型号UC2902DTRG4的Datasheet PDF文件第6页浏览型号UC2902DTRG4的Datasheet PDF文件第7页 
UC1902  
UC2902  
UC3902  
PRELIMINARY  
Load Share Controller  
FEATURES  
DESCRIPTION  
• 2.7V to 20V Operation  
The UC3902 load share controller is an 8-pin device that balances the cur-  
rent drawn from independent, paralleled power supplies. Load sharing is  
accomplished by adjusting each supply’s output current to a level propor-  
tional to the voltage on a share bus.  
• 8-Pin Package  
• Requires Minimum Number of  
External Components  
The master power supply, which is automatically designated as the supply  
that regulates to the highest voltage, drives the share bus with a voltage  
• Compatible with Existing Power  
Supply Designs Incorporating Remote proportional to its output current. The UC3902 trims the output voltage of  
Output Voltage Sensing  
the other paralleled supplies so that they each support their share of the  
load current. Typically, each supply is designed for the same current level  
although that is not necessary for use with the UC3902. By appropriately  
scaling the current sense resistor, supplies with different output current ca-  
pability can be paralleled with each supply providing the same percentage  
of their output current capability for a particular load.  
• Differential Share Bus  
• Precision Current Sense Amplifier with  
Gain of 40  
• UVLO (Undervoltage Lockout)  
Circuitry  
A differential line is used for the share bus to maximize noise immunity and  
accommodate different voltage drops in each power converter’s ground re-  
turn line. Trimming of each converter’s output voltage is accomplished by  
injecting a small current into the output voltage sense line, which requires a  
small resistance (typically 20Ω – 100Ω) to be inserted.  
• User Programmable Share Loop  
Compensation  
BLOCK DIAGRAM  
LOAD SHARE CONTROLLER  
GND  
1
8
VCC  
BIAS  
UVLO  
–
SHARE DRIVE AMPLIFIER  
+
40R  
R
SENSE  
2
–
+
7
6
SHARE+  
SHARE–  
+
CURRENT SENSE  
AMPLIFIER  
SHARE SENSE AMPLIFIER  
–
ERROR AMPLIFIER  
+
ADJ  
3
4
+
35mV  
–
0.6V  
ADJ AMPLIFIER  
+
+
5
COMP  
–
2.3V  
ADJR  
UDG-99042  
SLUS232 - FEBRUARY 1999  
12345678

中文翻译

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UC2902DTRG4 替代型号

型号 品牌 替代类型 描述 数据表
UC2902DG4 TI

完全替代

 LOAD SHARE CONTROLLER
UC2902DTR TI

完全替代

 20V load share controller, -40°C to 85°C 8-SOIC -40 to 85
UC2902D TI

完全替代

 LOAD SHARE CONTROLLER

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