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R3112NXXX1X PDF预览

R3112NXXX1X

更新时间: 2024-09-30 23:31:55
品牌 Logo 应用领域
其他 - ETC /
页数 文件大小 规格书
18页 340K
描述
Power Management ICs

R3112NXXX1X 数据手册

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2002. Feb.27  
LROW3V1OL1TA2GxE xDExTE1CATO/RCWITSH eOUrTiPeUsT DELAY  
OUTLINE  
The R3112 Series are voltage detector ICs with high detector threshold accuracy and ultra-low supply current by CMOS  
process, which can be operated at an extremely low voltage and is used for system reset as an example.  
Each of these ICs consists of a voltage reference unit, a comparator, resistor net for detector threshold setting, an  
output driver, a hysteresis circuit, and an output delay circuit. The detector threshold is fixed with high accuracy internally  
and does not require any adjustment. Two output types, Nch open drain type and CMOS type are available.  
Two types of packages, SOT-23-5 and ultra small SC-82AB can be selected so that high density mounting on boards is  
possible.  
FEATURES  
Built-in Output Delay Circuit• • • • • • • • • • TYP. 100ms with an external capacitor: 0.022µF  
Ultra-low Supply Current• • • • • • • • • • TYP. 1.0µA (VDD=3.5V)  
Wide Range of Operating Voltage • • • • • 0.7V 6.0V(Topt=25°C)  
Detector Threshold • • • • • • • • Stepwise setting with a step of 0.1V in the range of 0.9V to 5.0V is possible.  
High Accuracy Detector Threshold • • • • • • • ±2.0%  
Low Temperature-Drift Coefficient of Detector Threshold• • • • • • • • • TYP. ±100ppm/°C  
Two Output Types• • • • • • • • • • • • • • • • • • • Nch Open Drain and CMOS  
Two Types of Packages • • • • • • • • • • SOT-23-5 (Mini-mold), SC-82AB  
APPLICATIONS  
CPU and Logic Circuit Reset  
Battery Checker  
Window Comparator  
Wave Shaping Circuit  
Battery Back-up Circuit  
Power Failure Detector  
BLOCK DIAGRAMS  
R3112XXX1A  
R3112XXX1C  
RD  
VDD  
VDD  
RD  
OUT  
GND  
+
OUT  
GND  
+
-
--  
Vref  
Vref  
CD  
D
C
Rev. 1.12  
- 1 -  

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