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UCC2912NG4 PDF预览

UCC2912NG4

更新时间： 2024-10-02 15:55:55
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
17页 653K
描述
1-CHANNEL POWER SUPPLY SUPPORT CKT, PDIP16, GREEN, PLASTIC, DIP-16

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UCC2912NG4 技术参数

是否Rohs认证： 符合生命周期：Obsolete
零件包装代码：DIP包装说明：DIP, DIP16,.3
针数：16Reach Compliance Code：unknown
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.33可调阈值：YES
模拟集成电路 - 其他类型：POWER SUPPLY SUPPORT CIRCUITJESD-30 代码：R-PDIP-T16
长度：19.305 mm信道数量：1
功能数量：1端子数量：16
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：DIP
封装等效代码：DIP16,.3封装形状：RECTANGULAR
封装形式：IN-LINE峰值回流温度（摄氏度）：NOT SPECIFIED
电源：5 V认证状态：Not Qualified
座面最大高度：5.08 mm子类别：Power Management Circuits
最大供电电流 (Isup)：2 mA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：NO技术：BICMOS
温度等级：INDUSTRIAL端子形式：THROUGH-HOLE
端子节距：2.54 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：7.62 mm
Base Number Matches：1

UCC2912NG4 数据手册

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SLUS241D − MARCH 1994 - REVISED NOVEMBER 2003  
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Integrated 0.15-Ω Power MOSFET  
3-V to 8-V Operation  
D
Unidirectional Switch  
Thermal Shutdown  
Fault-Output Indicator  
D
D
D
Digital Programmable Current Limit  
from 0 A to 3 A  
Maximum-Output Current Can Be Set to 1 A  
Above the Programmed Fault Level or to a  
Full 4 A  
Electronic Circuit Breaker Function  
1µA I  
When Disabled  
CC  
D
Power SOIC, Low-Thermal Resistance  
Packaging  
Programmable On-Time  
Programmable Start Delay  
Fixed 3% Duty Cycle  
description  
The UCC3912 family of hot swap power managers provides complete power management, hot swap capability,  
and circuit breaker functions. The only component required to operate the device, other than supply bypassing,  
is the fault timing capacitor, C . All control and housekeeping functions are integrated, and externally  
T
programmable. These include the fault current level, maximum output-sourcing current, maximum fault time,  
and startup delay. In the event of a constant fault, the internal fixed 3% duty cycle ratio limits average output  
power.  
The internal 4-bit DAC allows programming of the fault level current from 0 A to 3 A with 0.25-A resolution. The  
IMAX control pin sets the maximum sourcing current to 1 A above the fault level when driven low, and to a full  
4 A when driven high for applications which require fast output capacitor charging.  
When the output current is below the fault level, the output MOSFET is switched on with a nominal on resistance  
of 0.15 Ω. When the output current exceeds the fault level, but is less than the maximum sourcing level, the  
output remains switched on, but the fault timer starts charging C . Once C charges to a preset threshold, the  
T
T
switch is turned off, and remains 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. (continued)  
block diagram  
H = 4 A  
2
3
VIN  
VIN  
IMAX 10  
30 mV  
V
REVERSE VOLTAGE  
COMPARATOR  
CHARGE  
PUMP  
−
+
OUT  
CURRENT SENSE  
4 A  
POWER  
FET  
+
−
MAX CURRENT  
LEVEL  
LINEAR CURRENT AMPLIFIER  
H = OPEN  
1 A  
ABOVE  
FAULT  
ON TIME  
CONTROL  
14 VOUT  
15 VOUT  
CURRENT FAULT  
LEVEL 0A TO 3 A  
+
−
3% DUTY  
CYCLE  
THERMAL  
SHUTDOWN  
OVERCURRENT  
COMPARATOR  
1.5 V  
0 A−3 A  
0.25  
RES  
+
−
INTERNAL  
BIAS  
1
SHTDWN  
6
7
8
9
5
4
13 12  
11  
16  
UDG-99146  
B3 B2 B1 B0  
4 BIT DAC  
GND  
CT  
FAULT  
HEATSINK  
GND PINS  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
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Copyright 2003, Texas Instruments Incorporated  
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www.ti.com  
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UCC2912NG4 替代型号

型号 品牌 替代类型 描述 数据表
UCC2912N TI

完全替代

 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDIP16, GREEN, PLASTIC, DIP-16

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