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LTC2901-1CGN PDF预览

LTC2901-1CGN

更新时间： 2024-01-18 15:20:11
品牌 Logo 应用领域
凌特 - Linear 监视器
页数 文件大小 规格书
16页 212K
描述
Programmable Quad Supply Monitor with Adjustable Reset and Watchdog Timers

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中文翻译

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LTC2901-1CGN 技术参数

是否Rohs认证： 符合生命周期：Transferred
零件包装代码：SSOP包装说明：SSOP, SSOP16,.25
针数：16Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.25可调阈值：YES
模拟集成电路 - 其他类型：POWER SUPPLY MANAGEMENT CIRCUITJESD-30 代码：R-PDSO-G16
JESD-609代码：e3长度：4.8895 mm
湿度敏感等级：1信道数量：4
功能数量：1端子数量：16
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：SSOP
封装等效代码：SSOP16,.25封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, SHRINK PITCH峰值回流温度（摄氏度）：260
电源：5 V认证状态：Not Qualified
座面最大高度：1.75 mm子类别：Power Management Circuits
标称供电电压 (Vsup)：5 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：0.635 mm端子位置：DUAL
处于峰值回流温度下的最长时间：30宽度：3.899 mm

LTC2901-1CGN 数据手册

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Final Electrical Specifications  
LTC2901  
Programmable Quad Supply  
Monitor with Adjustable Reset  
and Watchdog Timers  
June 2002  
U
FEATURES  
DESCRIPTIO  
Simultaneously Monitors Four Supplies  
The LTC®2901 is a programmable supply monitor for  
systemswithuptofoursupplyvoltages. Oneof16preset  
or adjustable voltage monitor combinations can be se-  
lected using an external resistor divider connected to the  
program pin. The preset voltage thresholds are accurate  
to 1.5% over temperature. All four voltage comparator  
outputs are connected to separate pins for individual  
supply monitoring.  
■
■
16 User Selectable Combinations of 5V, 3.3V, 3V,  
2.5V, 1.8V, 1.5V and/or ±Adjustable Voltage  
Thresholds  
■
Guaranteed Threshold Accuracy: ±1.5% of  
Monitored Voltage Over Temperature  
■
Low Supply Current: 43µA Typ  
■
Adjustable Reset Time  
■
Adjustable Watchdog Time  
The reset and watchdog delay times are adjustable using  
externalcapacitors.Tightvoltagethresholdaccuracyand  
glitch immunity ensure reliable reset operation without  
falsetriggering.TheRSToutputisguaranteedtobeinthe  
correctstateforVCC downto1V.TheLTC2901-1features  
an open-drain RST output, while the LTC2901-2 has a  
push-pull RST output.  
■
Open-Drain RST Output (LTC2901-1)  
■
Push-Pull RST Output (LTC2901-2)  
■
Individual Nondelayed Monitor Output for Each Supply  
■
Power Supply Glitch Immunity  
Guaranteed RSTUfor V  
■
CC ≥ 1V  
APPLICATIO S  
■
The 43µA supply current makes the LTC2901 ideal for  
power conscious systems and it may be configured to  
monitor less than four inputs. The parts are available in  
the 16-lead narrow SSOP package.  
Desktop and Notebook Computers  
■
Multivoltage Systems  
Telecom Equipment  
■
■
Portable Battery-Powered Equipment  
■
, LTC and LT are registered trademarks of Linear Technology Corporation.  
Network Servers  
U
TYPICAL APPLICATIO  
Quadruple Supply Monitor (5V, 3.3V, 2.5V, 1.8V)  
5V  
3.3V  
2.5V  
1.8V  
DC/DC  
CONVERTER  
SYSTEM  
LOGIC  
3
13  
V4  
R3  
10k  
POWER  
GOOD  
V3  
V1  
4
2
COMP1  
COMP2  
COMP3  
COMP4  
WDI  
16  
1
LTC2901-2  
14  
V2  
V
15  
8
C1  
0.1µF  
C2  
0.1µF  
12  
11  
REF  
7
WDO  
R1  
59k  
1%  
6
V
RST  
PG  
GND CRT  
10  
2901 TA01  
CWT  
9
R2  
40.2k  
1%  
5
t
t
= 216ms  
= 940ms  
RST  
WD  
C
C
WT  
47nF  
RT  
47nF  
2901is sn2901  
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.  
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-  
tationthattheinterconnectionofitscircuitsasdescribedhereinwillnotinfringeonexistingpatentrights.  
1
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LTC2901-1CGN 替代型号

型号 品牌 替代类型 描述 数据表
LTC2901-1IGN#TR Linear

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