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LTC2905IDDB#PBF

更新时间： 2024-01-03 12:12:48
品牌 Logo 应用领域
凌特 - Linear /
页数 文件大小 规格书
16页 146K
描述
LTC2905 - Precision Dual Supply Monitor with Pin-Selectable Thresholds; Package: DFN; Pins: 8; Temperature Range: -40°C to 85°C

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中文翻译

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LTC2905IDDB#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, SOLCC8,.08,20
针数：8Reach Compliance Code：compliant
风险等级：5.11其他特性：IT ALSO REQUIRES 5V
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-N8JESD-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：85 °C
最低工作温度：-40 °C封装主体材料：PLASTIC/EPOXY
封装代码：HVSON封装等效代码：SOLCC8,.08,20
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)：3.3 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：0.5 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

LTC2905IDDB#PBF 数据手册

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LTC2904/LTC2905  
Precision Dual Supply  
Monitors with Pin-Selectable  
Thresholds  
FEATURES  
DESCRIPTION  
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 exter-  
nal capacitor for the LTC2905). This product provides a  
precise, space-conscious and micropower solution for  
supply monitoring.  
n
Monitors Two Inputs Simultaneously  
n
Nine Threshold Combinations  
n
Three Supply Tolerances (5%, 7.5%, 10%)  
n
Guaranteed Threshold Accuracy: 1.5% of  
Monitored Voltage Over Temperature  
n
Internal V Auto Select  
CC  
n
Power Supply Glitch Immunity  
n
200ms Reset Time Delay (LTC2904 Only)  
The LTC2904/LTC2905 feature a tight 1.5% threshold  
accuracyoverthewholeoperatingtemperaturerange,and  
glitch immunity to ensure reliable reset operation without  
false triggering. The open drain RST output is guaranteed  
to be in the correct state for inputs down to 1V.  
n
Adjustable Reset Time Delay (LTC2905 Only)  
n
Open Drain RST Output  
n
Guaranteed RST for V1 ≥ 1V or V2 ≥ 1V  
n
Low Profile (1mm) SOT-23 (ThinSOT™) and  
Plastic (3mm × 2mm) DFN Packages  
The LTC2904/LTC2905 also feature three programming  
inputpins,whichprogramthethresholdandtolerancelevel  
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 implementation  
of different systems with different voltage levels requiring  
monitoring function.  
APPLICATIONS  
n
Desktop and Notebook Computers  
n
Handheld Devices  
n
Network Servers  
n
Core, I/O Monitor  
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear  
Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation.  
All other trademarks are the property of their respective owners.  
TYPICAL APPLICATION  
5V, 3.3V Dual Supply Monitor with 5% Tolerance  
Table 1. Voltage Threshold Programming  
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  
22nF  
Open  
Open  
GND  
GND  
GND  
V1  
S1  
Open  
GND  
Open  
V1  
S2  
TOL  
29045 TA01  
GND  
29045fd  
1
1234567...16

中文翻译

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