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LTC2923 PDF预览

LTC2923

更新时间: 2024-01-24 16:11:23
品牌 Logo 应用领域
凌特 - Linear 监视器
页数 文件大小 规格书
16页 188K
描述
Precision Quad Supply Monitor in 6-Lead SOT-23

LTC2923 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:TSSOP,
针数:10Reach Compliance Code:compliant
风险等级:5.13可调阈值:NO
模拟集成电路 - 其他类型:POWER SUPPLY SUPPORT CIRCUITJESD-30 代码:S-PDSO-G10
JESD-609代码:e3长度:3 mm
湿度敏感等级:1信道数量:2
功能数量:1端子数量:10
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:TSSOP
封装形状:SQUARE封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度(摄氏度):250认证状态:Not Qualified
座面最大高度:1.1 mm最大供电电压 (Vsup):5.5 V
最小供电电压 (Vsup):2.9 V表面贴装:YES
温度等级:INDUSTRIAL端子面层:Matte Tin (Sn)
端子形式:GULL WING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:NOT SPECIFIED
宽度:3 mmBase Number Matches:1

LTC2923 数据手册

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LTC2903-1  
Precision Quad Supply  
Monitor in 6-Lead SOT-23  
U
FEATURES  
DESCRIPTIO  
The LTC®2903-1 monitors up to four supply voltages. The  
common reset output remains low until all four inputs  
have been in compliance for 200ms. Voltage thresholds  
maintain ±1.5% accuracy over temperature (with respect  
to the monitored voltage). The LTC2903-1 features an  
open-drain RST output with a weak internal pullup.  
Ultralow Voltage Reset: VCC = 0.5V Guaranteed  
Monitor Four Inputs Simultaneously  
3.3V, 2.5V, 1.8V, ADJ (LTC2903-A1)  
5V, 3.3V, 2.5V, 1.8V (LTC2903-B1)  
5V, 3.3V, 1.8V, –5.2V (LTC2903-C1)  
Guaranteed Threshold Accuracy: ±1.5% of  
Monitored Voltage over Temperature  
Internalsupplyvoltage(VCC)isgeneratedfromthegreater  
voltageontheV1,V2inputs.TheRSToutputisguaranteed  
to sink at least 5µA (VOL = 0.15V) for V1, V2 or V3 down  
to 0.5V and will typically conduct current down to 0V.  
Quiescent current is 20µA typical, making the LTC2903-1  
ideal for power conscious systems. The LTC2903-1 is  
available in a 6-lead low profile (1mm) SOT-23 package.  
10% Undervoltage Monitoring  
Low Supply Current: 20µA Typical  
200ms Reset Time Delay  
Active Low Open-Drain RST Output  
Power Supply Glitch Immunity  
Low Profile (1mm) SOT-23 (ThinSOTTM) Package  
U
, LTC and LT are registered trademarks of Linear Technology Corporation.  
ThinSOT is a trademark of Linear Technology Corporation.  
APPLICATIO S  
Multivoltage Systems  
Optical Networking Systems  
Cell Phone Base Stations  
Network Servers  
U
TYPICAL APPLICATIO  
Low Voltage Reset Pull-Down Performance  
vs External Pull-Up Current and Input Supply Voltage  
0.10  
V
= V1 = V2 = V3  
IN  
5V  
0.09  
0.08  
0.07  
0.06  
0.05  
0.04  
0.03  
0.02  
0.01  
0
3.3V  
DC/DC  
CONVERTER  
SYSTEM  
LOGIC  
2.5V  
1.8V  
20µA  
10µA  
LTC2903-B1  
V1  
RST  
C1  
5µA  
2µA  
0.1µF  
GND  
V2  
V4  
C2  
0.1µF  
V3  
2903 TA01  
1µA  
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9  
, INPUT SUPPLY VOLTAGE (V)  
0
1
V
IN  
2903 TA01b  
29031f  
1

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