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LTC2905IDDB PDF预览

LTC2905IDDB

更新时间： 2024-01-19 08:49:25
品牌 Logo 应用领域
凌特 - Linear 监视器光电二极管
页数 文件大小 规格书
16页 155K
描述
Precision Dual Supply Monitors with Pin-Selectable Thresholds

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中文翻译

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LTC2905IDDB 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：5.11Is Samacsys：N
其他特性：ALSO OPERATES ON SUPPLY VOLTAGE 2.5V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：2端子数量：8
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：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)：3.465 V
最小供电电压 (Vsup)：3.135 V标称供电电压 (Vsup)：1 V
表面贴装：YES技术：CMOS
温度等级：INDUSTRIAL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 mmBase Number Matches：1

LTC2905IDDB 数据手册

 浏览型号LTC2905IDDB的Datasheet PDF文件第2页浏览型号LTC2905IDDB的Datasheet PDF文件第3页浏览型号LTC2905IDDB的Datasheet PDF文件第4页浏览型号LTC2905IDDB的Datasheet PDF文件第5页浏览型号LTC2905IDDB的Datasheet PDF文件第6页浏览型号LTC2905IDDB的Datasheet PDF文件第7页 
LTC2904/LTC2905  
Precision Dual Supply Monitors  
with Pin-Selectable Thresholds  
U
FEATURES  
DESCRIPTIO  
The LTC®2904/LTC2905 are dual supply monitors in-  
tended for systems with two supply voltages. The dual  
supply monitors have a common reset output with delay  
(200ms for the LTC2904 and adjustable using an external  
capacitor for the LTC2905). This product provides a  
precise, space-conscious and micropower solution for  
supply monitoring.  
■
Monitors Two Inputs Simultaneously  
■
Nine Threshold Combinations  
■
Three Supply Tolerances (5%, 7.5%, 10%)  
■
Guaranteed Threshold Accuracy: ±1.5% of  
Monitored Voltage Over Temperature  
■
Internal VCC Auto Select  
Power Supply Glitch Immunity  
■
■
200ms Reset Time Delay (LTC2904 Only)  
The LTC2904/LTC2905 feature a tight 1.5% threshold  
accuracy over the whole operating temperature range,  
and glitch immunity to ensure reliable reset operation  
without false triggering. The open drain RST output is  
guaranteedtobeinthecorrectstateforinputsdownto1V.  
■
Adjustable Reset Time Delay (LTC2905 Only)  
■
Open Drain RST Output  
■
Guaranteed RST for V1 ≥ 1V or V2 ≥ 1V  
Low Profile (1mm) SOT-23 (ThinSOTTM) and Plastic  
■
(3mm x 2mm) DUFN Packages  
The LTC2904/LTC2905 also feature three programming  
input pins, which program the threshold and tolerance  
level without requiring any external components. These  
three programming pins provide a total of 27 different  
voltage level and tolerance combinations, eliminating  
the need to have different parts for development and  
implementationofdifferentsystemswithdifferentvoltage  
levels requiring monitoring function.  
APPLICATIO S  
■
■
■
■
Desktop and Notebook Computers  
Handheld Devices  
Network Servers  
Core, I/O Monitor  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
ThinSOT is a trademark of Linear Technology Corporation.  
U
TYPICAL APPLICATIO  
Table 1. Voltage Threshold Programming  
5V, 3.3V Dual Supply Monitor with 5% Tolerance  
V1  
5.0  
3.3  
3.3  
3.3  
3.3  
2.5  
2.5  
2.5  
2.5  
V2  
3.3  
2.5  
1.8  
1.5  
1.2  
1.8  
1.5  
1.2  
1.0  
S1  
V1  
S2  
V1  
5V  
DC/DC  
SYSTEM  
LOGIC  
3.3V  
CONVERTER  
Open  
V1  
GND  
Open  
V1  
V1  
V2  
TMR  
GND  
RST  
LTC2905  
0.1µF  
0.1µF  
Open  
Open  
GND  
GND  
GND  
V1  
S1  
Open  
GND  
Open  
V1  
22nF  
S2  
TOL  
29045 TA01  
GND  
sn29045 29045fs  
1
1234567...16

中文翻译

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