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UCC1913N PDF预览

UCC1913N

更新时间： 2024-02-22 04:00:32
品牌 Logo 应用领域
德州仪器 - TI 信息通信管理光电二极管
页数 文件大小 规格书
9页 121K
描述
1-CHANNEL POWER SUPPLY SUPPORT CKT, PDIP8, PLASTIC, DIP-8

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中文翻译

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UCC1913N 技术参数

生命周期：Obsolete零件包装代码：DIP
包装说明：PLASTIC, DIP-8针数：8
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.71
Is Samacsys：N可调阈值：NO
模拟集成电路 - 其他类型：POWER SUPPLY SUPPORT CIRCUITJESD-30 代码：R-PDIP-T8
长度：9.78 mm信道数量：1
功能数量：1端子数量：8
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
封装形状：RECTANGULAR封装形式：IN-LINE
认证状态：Not Qualified座面最大高度：5.33 mm
最大供电电压 (Vsup)：10.5 V最小供电电压 (Vsup)：8.5 V
标称供电电压 (Vsup)：9.5 V表面贴装：NO
技术：BICMOS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 mm
Base Number Matches：1

UCC1913N 数据手册

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UCC1913  
UCC2913  
UCC3913  
Negative Voltage Hot Swap Power Manager  
FEATURES  
DESCRIPTION  
• Precision Fault Threshold  
The UCC1913 family of negative voltage circuit breakers provides com-  
plete power management, hot swap, and fault handling capability. The IC is  
referenced to the negative input voltage and is driven through an external  
resistor connected to ground, which is essentially a current drive as op-  
posed to the traditional voltage drive. The on-board 10V shunt regulator  
protects the IC from excess voltage and serves as a reference for program-  
ming the maximum allowable output sourcing current during a fault. All  
control and housekeeping functions are integrated, and externally program-  
mable. These include the fault current level, maximum output sourcing cur-  
rent, maximum fault time, soft start time, and average power limiting. In the  
event of a constant fault, the internal timer will limit the on-time from less  
than 0.1% to a maximum of 3%. The duty cycle modulates depending on  
the current into the PL pin, which is a function of the voltage across the  
FET, and will limit average power dissipation in the FET. The fault level is  
fixed at 50mV across the current sense amplifier to minimize total dropout.  
The fault current level is set with an external current sense resistor. The  
maximum allowable sourcing current is programmed with a voltage divider  
from VDD to generate a fixed voltage on the IMAX pin. The current level,  
• Programmable Average Power  
Limiting  
• Programmable Linear Current Control  
• Programmable  
• Overcurrent Limit  
• Programmable Fault Time  
• Fault Output Indication  
• Shutdown Control  
• Undervoltage Lockout  
• 8-Pin SOIC  
when the output appears as a current source, is equal to V  
R
. If  
IMAX/ SENSE  
desired, a controlled current startup can be programmed with a capacitor  
on the IMAX pin.  
When the output current is below the fault level, the output device is  
switched on. When the output current exceeds the fault level, but is less  
than the maximum sourcing level programmed by the IMAX pin, the output  
remains switched on, and the fault timer starts charging CT. Once CT  
charges to 2.5V, the output device is turned off and performs a retry some  
time later. When the output current reaches the maximum sourcing current  
level, the output appears as a current source, limiting the output current to  
the set value defined by IMAX.  
Other features of the UCC1913 family include undervoltage lockout, and  
8-pin small outline (SOIC) and Dual-In-Line (DIL) packages.  
BLOCK DIAGRAM  
VDD  
3
IMAX  
2
UVLO  
1=  
8
7
PL  
LOGIC  
SUPPLY  
5.0V  
REF  
V
DD  
V
DD  
UNDERVOLTAGE  
9.5V SHUNT REGULATOR  
0.2V  
5.0V  
V
DD  
OUT  
LINEAR  
CURRENT  
AMPLIFIER  
50Ω  
OVERLOAD COMPARATOR  
DISABLE  
SD/FLT  
1
6
5
SENSE  
VSS  
ON-TIME  
CONTROL  
50mV  
SOURCE  
ONLY  
20µA  
OVERCURRENT  
COMPARATOR  
4
CT  
UDG-99001  
SLUS274 - J ANUARY 1999  
1234567...9

中文翻译

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