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UCC3912DPR PDF预览

UCC3912DPR

更新时间： 2024-11-20 13:15:07
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
6页 151K
描述
1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16, POWER, SO-16

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中文翻译

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UCC3912DPR 技术参数

生命周期：Obsolete零件包装代码：SOIC
包装说明：SOP,针数：16
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.7
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-G16JESD-609代码：e4
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
认证状态：Not Qualified座面最大高度：1.75 mm
最大供电电压 (Vsup)：8 V最小供电电压 (Vsup)：3 V
标称供电电压 (Vsup)：5 V表面贴装：YES
技术：BICMOS温度等级：COMMERCIAL
端子面层：NICKEL PALLADIUM GOLD端子形式：GULL WING
端子节距：1.27 mm端子位置：DUAL
宽度：3.9 mmBase Number Matches：1

UCC3912DPR 数据手册

 浏览型号UCC3912DPR的Datasheet PDF文件第2页浏览型号UCC3912DPR的Datasheet PDF文件第3页浏览型号UCC3912DPR的Datasheet PDF文件第4页浏览型号UCC3912DPR的Datasheet PDF文件第5页浏览型号UCC3912DPR的Datasheet PDF文件第6页 
application  
INFO  
UCC3912  
available  
Programmable Hot Swap Power Manager  
FEATURES  
DESCRIPTION  
• Integrated 0.15Ω Power MOSFET  
The UCC3912 Hot Swap Power Manager provides complete power man-  
agement, hot swap capability, and circuit breaker functions. The only com-  
ponent required to operate the device, other than supply bypassing, is the  
fault timing capacitor, CT. All control and housekeeping functions are inte-  
grated, and externally programmable. These include the fault current level,  
maximum output sourcing current, maximum fault time,and start-up delay.  
In the event of a constant fault, the Internal fixed 3% duty cycle ratio limits  
average output power.  
• 3V to 8V Operation  
• Digital Programmable Current Limit  
from 0 to 3A  
• Electronic Circuit Breaker Function  
• 1µA ICC when Disabled  
• Programmable on Time  
• Programmable Start Delay  
• Fixed 3% Duty Cycle  
The internal 4 bit DAC allows programming of the fault level current from 0  
to 3A with 0.25A resolution. The IMAX control pin sets the maximum sour-  
cing current to 1A above the fault level when driven low, and to a full 4A  
when driven high for applications which require fast output capacitor charg-  
ing.  
• Uni-Directional Switch  
• Thermal Shutdown  
When the output current is below the fault level, the output MOSFET is  
switched on with a nominal on resistance of 0.15 . When the output cur-  
rent exceeds the fault level, but is less than the maximum sourcing level,  
the output remains switched on, but the fault timer starts charging CT.  
Once CT charges to a preset threshold, the switch is turned off, and re-  
mains off for 30 times the programmed fault time. When the output current  
reaches the maximum sourcing level, the MOSFET transitions from a  
switch to a constant current source.  
• Fault Output Indicator  
• Maximum Output Current can be set  
to 1A above the Programmed Fault  
Level or to a full 4A  
• Power SOIC, Low Thermal  
Resistance Packaging  
(continued)  
BLOCK DIAGRAM  
2
REVERSE VOLTAGE  
30mV  
COMPARATOR  
VIN  
CHARGE  
PUMP  
H = 4A  
IMAX 10  
3
V
OUT  
MAX  
CURRENT  
LEVEL  
CURRENT SENSE  
H = OPEN  
4A  
POWER  
FET  
LINEAR CURRENT  
AMPLIFIER  
1A  
ABOVE  
FAULT  
14  
15  
OVER CURRENT  
COMPARATOR  
VOUT  
ON TIME  
CONTROL  
CURRENT FAULT  
LEVEL 0–3 AMPS  
3% DUTY  
CYCLE  
THERMAL  
SHUTDOWN  
1.5V  
0–3A  
+
–
0.25  
RES  
INTERNAL  
BIAS  
1
SHTDWN  
6
7
8
9
5
4
13  
12  
11  
16  
HEAT SINK  
GND PINS  
B3  
B2  
B1  
B0  
GND  
CT  
FAULT  
UDG-99146  
4 BIT DAC  
SLUS241A - NOVEMBER 1999  
123456

中文翻译

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