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3512-S14-T PDF预览

3512-S14-T

更新时间: 2024-02-25 02:31:23
品牌 Logo 应用领域
友顺 - UTC 电源电路电源管理电路监控PC
页数 文件大小 规格书
9页 223K
描述
PC POWER SUPPLY SUPERVISORS

3512-S14-T 技术参数

生命周期:ActiveReach Compliance Code:compliant
风险等级:5.72Is Samacsys:N
Base Number Matches:1

3512-S14-T 数据手册

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UNISONIC TECHNOLOGIES CO., LTD  
3512  
CMOS IC  
PC POWER SUPPLY  
SUPERVISORS  
DESCRIPTION  
DIP-14  
The UTC 3512 is specially designed for switching power supply  
system. It provides over-voltage protection, over-current protection,  
under-voltage protection, on/off control and power good signal  
generating.  
OVP/UVP (Over/Under-Voltage Protection) monitors 3.3V, 5V  
and double 12V to protect our power supply and PC, FPO goes to  
high when one of these supply voltages exceeds their normal  
operation voltage range.  
SOP-14  
OCP (Over Current Protection) monitors IS33, IS5, IS12 input  
current. The voltage difference across external current shunt is  
used for OCP functions. An external resistor which is connected  
between the RI pin and the GND pin can be used to adjust  
protection threshold. To achieve better immunity for lighting surge  
glitch and to prevent accidental power shut down during dynamic  
loading condition, the de-bounce time for UVP/OCP is 73us  
respectively. The deglitch time for OVP is 73uS for better noise  
immunity.  
*Pb-free plating product number: 3512L  
The power supply is turned on after 38mS de-bounce time when  
PSON signal is set from high to low. To turn off power supply,  
PSON signal is set from low to high and the de-bounce time is  
115mS. When PGI input voltage level is lower than the internal  
1.15V reference voltage, after 73uS de-bounce time, the PGO  
signal is pulled low.  
FEATURES  
* Over/Under-voltage protection for 3.3V, 5V, and two 12V  
* Over-current protection for 3.3V, 5V, and two 12V  
* PGO and FPO pins with open drain output stage  
* 300mS power good delay from PGI to PGO  
* 75mS delay for 3.3V, 5V and 12V power turn on  
* 2.8mS delay for PSON control to FPO turn off  
* 38mS / 115mS PSON on/off de-bounce time  
* 73uS width noise deglitches  
* 73uS de-bounce time for UVP and OCP  
* Wide supply voltage range  
ORDERING INFORMATION  
Order Number  
Package  
Packing  
Normal  
Lead Free Plating  
3512-D14-T  
3512-S14-R  
3512-S14-T  
3512L-D14-T  
3512L-S14-R  
3512L-S14-T  
DIP-14  
SOP-14  
SOP-14  
Tube  
Tape Reel  
Tube  
www.unisonic.com.tw  
Copyright © 2005 Unisonic Technologies Co., Ltd  
1 of 9  
QW-R502-073,A  

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