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LTC2954CDDB-2#TRPBF PDF预览

LTC2954CDDB-2#TRPBF

更新时间: 2024-02-08 08:01:26
品牌 Logo 应用领域
凌特 - Linear 光电二极管
页数 文件大小 规格书
18页 454K
描述
LTC2954 - Push Button On/Off Controller with µP Interrupt; Package: DFN; Pins: 8; Temperature Range: 0°C to 70°C

LTC2954CDDB-2#TRPBF 技术参数

是否无铅: 含铅是否Rohs认证: 符合
生命周期:Active包装说明:HVSON,
针数:8Reach Compliance Code:compliant
风险等级:5.11可调阈值:YES
模拟集成电路 - 其他类型:POWER SUPPLY SUPPORT CIRCUITJESD-30 代码:R-PDSO-N8
JESD-609代码:e3长度:3 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:HVSON
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度(摄氏度):260认证状态:Not Qualified
座面最大高度:0.8 mm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:NO LEAD
端子节距:0.5 mm端子位置:DUAL
处于峰值回流温度下的最长时间:30宽度:2 mm
Base Number Matches:1

LTC2954CDDB-2#TRPBF 数据手册

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LTC2954  
Pushbutton On/Off  
Controller with µP Interrupt  
FEATURES  
DESCRIPTION  
n
Adjustable Power On/Off Timers  
The LTC®2954 is a pushbutton on/off controller that  
manages system power via a pushbutton interface. An  
enable output toggles system power while an interrupt  
output provides debounced pushbutton status. The inter-  
rupt output can be used in menu driven applications to  
request a system power-down. A power kill input allows  
a microprocessor or system to reset the enable output,  
effectively powering down the system. Independently  
adjustable on and off timers allow dependable pushbutton  
control of the enable output and resistance to accidental  
toggling of system power.  
n
Low Supply Current: 6μA  
n
Wide Operating Voltage Range: 2.7V to 26.4V  
n
Low Leakage EN Output (LTC2954-1) Allows DC/DC  
Converter Control  
n
High Voltage EN Output (LTC2954-2) Allows Circuit  
Breaker Control  
n
Simple Interface Allows Graceful μP Shutdown  
n
High Input Voltage PB Pin with Internal Pull-Up  
Resistor  
±±1kV ꢀSD HBM on PB Input  
n
n
Accurate 1.6V Threshold on KILL Comparator Input  
8-Pin 3mm × 2mm DFN and ThinSOT™ Packages  
TheLTC2954operatesoverawide2.7Vto26.4Vinputvolt-  
age range to accommodate a wide variety of input power  
supplies. Very low quiescent current (6μA typical) makes  
theLTC2954ideallysuitedforbatterypoweredapplications.  
Two versions of the part are available to accommodate  
either positive or negative enable polarities.  
n
APPLICATIONS  
n
Pushbutton PowerPath™ Control  
n
Portable Instrumentation Meters  
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and  
PowerPath and ThinSOT are trademarks of Linear Technology Corporation. All other trademarks  
are the property of their respective owners.  
n
Blade Servers  
n
Portable Customer Service PDA  
n
Desktop and Notebook Computers  
TYPICAL APPLICATION  
Pushbutton On/Off with Interrupt  
V
V
IN  
OUT  
SHORT PULSꢀ  
TURN-ON PULSꢀ  
LONG PULSꢀ  
DC/DC  
+
PB  
EN  
±11k  
±11k  
9V  
TURNS ON  
STAYS ON  
TURNS OFF  
INTꢀRRUPT  
±1k  
V
IN  
EN  
LTC2954-2  
ONT  
INT  
INT  
INT  
μP/μC  
INTꢀRRUPT  
KILL  
KILL  
PB  
2954 TA1±b  
PDT  
GND  
2954 TA1±a  
±μF  
t
= 6.4 SꢀCONDS  
PDT  
2954fb  
1

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