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UC1914N PDF预览

UC1914N

更新时间: 2024-11-14 21:08:55
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
15页 649K
描述
1-CHANNEL POWER SUPPLY SUPPORT CKT, PDIP18, 0.300 INCH, PLASTIC, DIP-18

UC1914N 技术参数

生命周期:Obsolete零件包装代码:DIP
包装说明:DIP, DIP18,.3针数:18
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.29
可调阈值:NO模拟集成电路 - 其他类型:POWER SUPPLY SUPPORT CIRCUIT
JESD-30 代码:R-PDIP-T18长度:23 mm
信道数量:1功能数量:1
端子数量:18最高工作温度:125 °C
最低工作温度:-55 °C封装主体材料:PLASTIC/EPOXY
封装代码:DIP封装等效代码:DIP18,.3
封装形状:RECTANGULAR封装形式:IN-LINE
电源:5/35 V认证状态:Not Qualified
座面最大高度:5.33 mm子类别:Power Management Circuits
最大供电电流 (Isup):20 mA最大供电电压 (Vsup):35 V
最小供电电压 (Vsup):5 V标称供电电压 (Vsup):12 V
表面贴装:NO技术:BIPOLAR
温度等级:MILITARY端子形式:THROUGH-HOLE
端子节距:2.54 mm端子位置:DUAL
宽度:7.62 mmBase Number Matches:1

UC1914N 数据手册

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UC1914  
UC2914  
UC3914  
5V to 35V Hot Swap Power Manager  
FEATURES  
DESCRIPTION  
5V to 35V Operation  
The UC3914 family of Hot Swap Power Managers provides complete  
power management, hot swap and fault handling capability. Integrating this  
part and a few external components, allows a board to be swapped in or  
out upon failure or system modification without removing power to the hard-  
ware, while maintaining the integrity of the powered system. Complemen-  
tary output drivers and diodes have been integrated for use with external  
capacitors as a charge pump to ensure sufficient gate drive to the external  
NMOS transistor for low RDS(on). All control and housekeeping functions  
are integrated and externally programmable and include the fault current  
level, maximum output sourcing current, maximum fault time and average  
power limiting of the external FET. The UC3914 features a duty ratio cur-  
rent limiting technique, which provides peak load capability while limiting  
the average power dissipation of the external pass transistor during fault  
conditions. The fault level is fixed at 50mV with respect to VCC to minimize  
total dropout. The fault current level is set with an external current sense re-  
sistor. The maximum allowable sourcing current is programmed by using a  
resistor divider from VCC to REF to set the voltage on IMAX. The maximum  
current level, when the output appears as a current source is  
Precision Maximum Current Control  
Precision Fault Threshold  
Programmable Average Power  
Limiting  
Programmable Overcurrent Limit  
Shutdown Control  
Charge Pump for Low RDS(on)  
High-Side Drive  
Latch Reset Function Available  
Output Drive VGS Clamping  
Fault Output Indication  
18 Pin DIL and SOIC Packages  
(VCC – VIMAX)/RSENSE  
.
(continued)  
BLOCK DIAGRAM  
UDG-95134-2  
SLUS425A - AUGUST 1999  

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