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R3112N281A 반도체 회로 부품 판매점

(R3112xxxx) LOW VOLTAGE DETECTOR



RICOH electronics devices 로고
RICOH electronics devices
R3112N281A 데이터시트, 핀배열, 회로
R3112x SERIES
LOW VOLTAGE DETECTOR WITH OUTPUT DELAY
NO. EA-087-070112
OUTLINE
The R3112x Series are CMOS-based voltage detector ICs with high detector threshold accuracy and ultra-low
supply current, which can be operated at an extremely low voltage and is used for system reset as an example.
www.DataSheet4UE.caomch 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.
Three types of packages, SOT-23-5, small SC-82AB, and ultra-small SON1612-6 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
Supply Current ................................................................... Typ. 0.5µA (R3112x271A/C, VDD=2.6V)
Operating Voltage .............................................................. 0.7 to 6.0V(Topt=25°C)
Detector Threshold............................................................. 0.9V to 5.0V
High Accuracy Detector Threshold .................................... ±2.0%
Low Temperature-Drift Coefficient of Detector Threshold ...Typ. ±100ppm/°C
Two Output Types .............................................................. Nch Open Drain and CMOS
Packages ........................................................................... SOT-23-5(Mini-mold),SC-82AB, SON1612-6
APPLICATIONS
CPU and Logic Circuit Reset
Battery Checker
Window Comparator
Wave Shaping Circuit
Battery Back-up Circuit
Power Failure Detector
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R3112N281A 데이터시트, 핀배열, 회로
R3112x
BLOCK DIAGRAMS
R3112xxx1A
VDD
www.DataSheet4U.comVref
+
-
RD
OUT VDD
GND
R3112xxx1C
+
-
Vref
RD
OUT
GND
CD CD
SELECTION GUIDE
The package type, the detector threshold, the output type, and the taping type of R3112x Series can be
designated at the users’ request by specifying the part number as follows;
R3112xxx1x-xx-x Part Number
↑↑ ↑ ↑ ↑
ab c d e
Code
a
b
c
d
e
Contents
Designation of Package Type;
Q: SC-82AB
N: SOT-23-5
D: SON1612-6
Setting Detector Threshold (VDET);
Stepwise setting with a step of 0.1V in the range of 0.9V to 5.0V is possible.
Designation of Output Type;
A: Nch Open Drain
C: CMOS
Designation of Packing or Taping Type;
Ex. SOT-23-5, SC-82AB, SON1612-6: TR is prescribed as standard
directions. (Refer to Taping Specifications)
Designation of Composition of pin plating;
-F: Lead free plating (SOT-23-5, SC-82AB, SON1612-6)
2




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