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UC3910DTRG4 PDF预览

UC3910DTRG4

更新时间: 2024-11-25 15:55:51
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
7页 246K
描述
4-Bit DAC and Voltage Monitor 16-SOIC 0 to 70

UC3910DTRG4 技术参数

是否无铅: 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:SOP,针数:16
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.71
可调阈值:YES模拟集成电路 - 其他类型:POWER SUPPLY SUPPORT CIRCUIT
JESD-30 代码:R-PDSO-G16长度:9.9 mm
信道数量:1功能数量:1
端子数量:16最高工作温度:70 °C
最低工作温度:封装主体材料:PLASTIC/EPOXY
封装代码:SOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):NOT SPECIFIED
认证状态:Not Qualified座面最大高度:1.75 mm
最大供电电压 (Vsup):13.2 V最小供电电压 (Vsup):10.8 V
标称供电电压 (Vsup):12 V表面贴装:YES
温度等级:COMMERCIAL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 mm
Base Number Matches:1

UC3910DTRG4 数据手册

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UC1910  
UC2910  
UC3910  
4-Bit DAC and Voltage Monitor  
FEATURES  
DESCRIPTION  
Precision 5V Reference  
The UC3910 is a complete precision reference and voltage monitor cir-  
cuit for Intel Pentium® Pro and other high-end microprocessor power  
supplies. It is designed for use in conjunction with the UC3886 PWM. The  
UC3910 together with the UC3886 converts 5VDC to an adjustable out-  
put ranging from 2.0VDC to 3.5VDC in 100mV steps with 1% DC system  
accuracy.  
4-Bit Digital-to-Analog (DAC)  
Converter  
0.5% DAC/Reference Combined  
Error  
Programmable Undervoltage and  
Overvoltage Fault Windows  
The UC3910 utilizes thin film resistors to ensure high accuracy and sta-  
bility of its precision circuits. The chip includes a precision 5V voltage ref-  
erence which is capable of sourcing 10mA to external circuitry. The  
output voltage of the DAC is derived from this reference, and the accu-  
racy of the DAC/reference combination is 0.5%. Programmable window  
comparators monitor the supply voltage to indicate that it is within ac-  
ceptable limits. The window is programmed as a percentage centered  
around the DAC output. An overvoltage protection comparator is set at a  
percentage 2 times larger than the programmed lower overvoltage level  
and drives an external SCR as well as provides an open collector output.  
Undervoltage lockout protection assures the correct logic states at the  
outputs during power-up and power-down.  
Overvoltage Comparator with  
Complementary SCR Driver and  
Open Collector Outputs  
Undervoltage Lockout  
BLOCK DIAGRAM  
UDG-95097-3  
3/97  

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