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LTC2953IDD-1-PBF PDF预览

LTC2953IDD-1-PBF

更新时间： 2024-02-23 00:10:04
品牌 Logo 应用领域
凌特 - Linear 监控控制器
页数 文件大小 规格书
20页 199K
描述
Push Button On/Off Controller with Voltage Monitoring

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LTC2953IDD-1-PBF 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：12Reach Compliance Code：compliant
风险等级：5.14可调阈值：YES
模拟集成电路 - 其他类型：POWER SUPPLY SUPPORT CIRCUITJESD-30 代码：S-PDSO-N12
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：12
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：HVSON
封装形状：SQUARE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)：27 V
最小供电电压 (Vsup)：2.7 V表面贴装：YES
温度等级：INDUSTRIAL端子面层：Matte Tin (Sn)
端子形式：NO LEAD端子节距：0.45 mm
端子位置：DUAL处于峰值回流温度下的最长时间：30
宽度：3 mmBase Number Matches：1

LTC2953IDD-1-PBF 数据手册

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LTC2953  
Push Button  
On/Off Controller  
with Voltage Monitoring  
DESCRIPTION  
The LTC®2953 is a push button On/Off controller that  
manages system power via a push button interface. An  
enable output toggles system power while an interrupt  
output provides debounced push button status. The inter-  
rupt output can be used in menu driven applications to  
request a system power down.  
FEATURES  
■
Wide Operating Voltage Range: 2.7V to 27V  
■
Push Button Control of System Power  
■
Low Supply Current: 14μA  
■
Power Fail Comparator Generates Warning  
■
UVLO Comparator Gracefully Latches Power Off  
■
Adjustable Supply Monitor with 200ms Reset  
■
Adjustable Power Down Timer  
The LTC2953 also features input and output power sup-  
ply monitors. An uncommitted power fail comparator  
provides real time input monitor information, while a  
de-glitched under voltage lockout comparator gracefully  
initiates a system power down. The under voltage lockout  
comparator prevents the system from powering from a  
low power supply.  
■
Low Leakage EN Output (LTC2953-1) Allows DC/DC  
Converter Control  
■
⎯
⎯
High Voltage EN Output (LTC2953-2) Allows Circuit  
Breaker Control  
■
Simple Interface Allows Orderly System Power Up  
and Power Down  
■
■
■
1.5ꢀ Threshold Tolerances  
⎯
⎯
The adjustable supply monitor input is compared against  
an accurate internal 0.5V reference. The reset output  
remains low until the supply monitor input has been in  
compliance for 200ms.  
10kV ESD HBꢁ on PB Input  
12-Pin 3mm × 3mm DFN  
APPLICATIONS  
■
Push Button Power Path Control  
The LTC2953 operates over a wide 2.7V to 27V input  
voltage range and draws only 14μA of current. Two ver-  
sions of the part accommodate either positive or negative  
enable polarities.  
■
Battery Power Supervisor  
■
Portable Instrumentation, PDA  
■
Blade Servers  
■
Desktop and Notebook Computers  
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.  
All other trademarks are the property of their respective owners.  
TYPICAL APPLICATION  
Push Button On/Off Control with Interrupt  
V
IN  
V
OUT  
+
100k  
2150k  
UVLO  
DC/DC  
SHDN  
8.4V  
3.3V  
SHORT  
INTERRUPT PULSE  
LONG  
TURN OFF PULSE  
TURN ON PULSE  
V
EN  
IN  
PB  
EN  
100k  
23.2k  
196k  
499k  
100k  
LTC2953-1  
PFI  
VM  
TURNS ON  
STAYS ON  
TURNS OFF  
INTERRUPT  
100k  
100k  
INT  
RST  
PFO  
INT  
RST  
GPIO  
INT  
INTERRUPT  
SYSTEM  
LOGIC  
2954 TD01b  
PB  
KILL  
KILL  
PDT  
GND  
ON/OFF  
2953 TA01  
1μF  
t
= 6.4 SECONDS  
PDT  
2953f  
1
1234567...20

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