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LTC2954CTS8-1 PDF预览

LTC2954CTS8-1

更新时间: 2024-02-24 01:59:18
品牌 Logo 应用领域
凌特 - Linear 微处理器控制器
页数 文件大小 规格书
16页 582K
描述
Push Button On/Off Controller with μP Interrupt

LTC2954CTS8-1 技术参数

是否Rohs认证:符合生命周期:Transferred
零件包装代码:SOT包装说明:VSSOP, TSSOP8,.1
针数:8Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.08Is Samacsys:N
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-G8JESD-609代码:e3
长度:2.9 mm湿度敏感等级:1
信道数量:1功能数量:1
端子数量:8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:VSSOP封装等效代码:TSSOP8,.1
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH
峰值回流温度(摄氏度):260电源:3/24 V
认证状态:Not Qualified座面最大高度:1 mm
子类别:Power Management Circuits最大供电电流 (Isup):0.012 mA
最大供电电压 (Vsup):26.4 V最小供电电压 (Vsup):2.7 V
表面贴装:YES技术:CMOS
温度等级:COMMERCIAL端子面层:Matte Tin (Sn)
端子形式:GULL WING端子节距:0.65 mm
端子位置:DUAL处于峰值回流温度下的最长时间:30
宽度:1.625 mmBase Number Matches:1

LTC2954CTS8-1 数据手册

 浏览型号LTC2954CTS8-1的Datasheet PDF文件第10页浏览型号LTC2954CTS8-1的Datasheet PDF文件第11页浏览型号LTC2954CTS8-1的Datasheet PDF文件第12页浏览型号LTC2954CTS8-1的Datasheet PDF文件第14页浏览型号LTC2954CTS8-1的Datasheet PDF文件第15页浏览型号LTC2954CTS8-1的Datasheet PDF文件第16页 
LTC2954  
U
TYPICAL APPLICATIO S  
KILL voltage below V  
circuit 30µs later. Since the PDT pin is open circuited, the  
power down debounce time defaults to 64ms.  
, the EN pin becomes an open  
capacitor extends the length of time (beyond 64ms) that  
the PB input must be held low before releasing the enable  
output.  
KILL(TH)  
PB Pin in a Noisy Environment  
High Voltage Power Path Switching  
The rugged PB pin is designed to operate in noisy envi-  
The high voltage EN open drain output of the LTC2954-2  
is designed to switch on/off an external power PFET. This  
allows a user to connect/disconnect a power supply (or  
battery) to its load by toggling the PB pin. Figure 7 shows  
the LTC2954-2 controlling a two cell Li-Ion battery ap-  
plication. The KILL pin is connected to the output of the  
PFET through a resistive divider. The KILL pin serves as  
ronments. Transients below ground (>6V) and above V  
IN  
(<33V) will not damage the rugged PB pin. Additionally,  
the PB pin can withstand ESD HBM strikes up to ±10kV.  
In order to keep external noise from coupling inside the  
LTC2954, place an R-C network close to the PB pin. A  
5.1k resistor and a 0.1µF capacitor should suffice for most  
noisy applications (see Figure 8).  
a voltage monitor. When V  
drops below 6V, causing a  
OUT  
V
OUT  
M1  
R5  
100K  
V
,TRIP POINT = 6V  
OUT  
R9  
100K  
R1  
909k  
1%  
4.2V  
+
SINGLE CELL  
Li-Ion BATTERY  
V
EN  
IN  
C4  
0.1µF  
CERAMIC  
LTC2954-2  
INT  
OPTIONAL GLITCH  
FILTER CAPACITOR  
4.2V  
SINGLE CELL  
Li-Ion BATTERY  
+
PB  
KILL  
PDT  
V
= 0.6V INPUT  
*OPTIONAL  
TH  
GND ONT  
R4  
100k  
1%  
C3*  
0.1µF  
C
*
ONT  
0.033µF  
2954 F07  
Figure 7. Power Path Control with 6V Under Voltage Detect  
V
IN  
PARASITICS  
TRACE  
CAPACITANCE  
EN  
R6  
5.1k  
V
IN  
LTC2954-1  
ONT  
PB  
INT  
NOISE  
KILL  
PDT  
TRACE  
INDUCTANCE  
C5  
0.1µF  
GND  
DETAILS OMITTED  
FOR CLARITY  
2954 F08  
Figure 8. Noisy PB Trace  
2954f  
13  

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