R3112N271A-TR RICOH Co.,Ltd., R3112N271A-TR Datasheet

no-image

R3112N271A-TR

Manufacturer Part Number
R3112N271A-TR
Description
R3112N271A-TRLOW VOLTAGE DETECTOR WITH OUTPUT DELAY
Manufacturer
RICOH Co.,Ltd.
Datasheet

Specifications of R3112N271A-TR

Dc
N/A

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
R3112N271A-TR-F
Manufacturer:
RICOH
Quantity:
20 000
Part Number:
R3112N271A-TR-F
Manufacturer:
RICOH
Quantity:
17 473
Part Number:
R3112N271A-TR-FE
Manufacturer:
RICOH
Quantity:
14 665
Company:
Part Number:
R3112N271A-TR-FE
Quantity:
60 000
supply current by CMOS process, which can be operated at an extremely low voltage and is used for
system reset as an example.
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.
mounting on boards is possible.
V
Rev. 1.10
DD
OUTLINE
The R3112 Series are voltage detector ICs with high detector threshold accuracy and ultra-low
Two types of packages, SOT-23-5 and ultra small SC-82AB can be selected so that high density
Each of these ICs consists of a voltage reference unit, a comparator, resistor net for detector
FEATURES
APPLICATIONS
BLOCK DIAGRAMS
is possible.
Vref
Built-in Output Delay Circuit
Ultra-low Supply Current
Wide Range of Operating Voltage
Detector Threshold
High Accuracy Detector Threshold
Low Temperature-Drift Coefficient of Detector Threshold
Two Output Types
Two Types of Packages
Battery Checker
Window Comparator
Wave Shaping Circuit
Battery Back-up Circuit
Power Failure Detector
CPU and Logic Circuit Reset
+
-
R3112XXX1A
R
D
C
D
Stepwise setting with a step of 0.1V in the range of 0.9V to 5.0V
SOT-23-5 (Mini-mold), SC-82AB
TYP. 1.0µA (V
0.7 6.0V(Topt=25 C)
- 1 -
TYP. 100ms with an external capacitor: 0.022 F
LOW VOLTAGE DETECTOR WITH OUTPUT DELAY
R3112xxx1A/C Series
Nch Open Drain and CMOS
OUT
GND
±2.0%
V
DD
DD
=3.5V)
Vref
--
+
R3112XXX1C
TYP. ±100ppm/ C
R
D
2001. Apr. 4
C
D
OUT
GND

Related parts for R3112N271A-TR

R3112N271A-TR Summary of contents

Page 1

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 ...

Page 2

OPERATION Comparator Ra Current Source - + Rb Vref Rc Output Capacitor Fig. 1 Block Diagram with an external capacitor Released Voltage VDET + HYSTERESIS RANGE Detector Threshold A -V DET Supply Voltage (VDD) VDDL Minimum Operating ...

Page 3

Operation of Output Delay Supply Voltage Capacitor Voltage Output Voltage When the Supply Voltage which is higher than Released Voltage is forced to V external capacitor starts, then capacitor voltage increases. Until the capacitor voltage reaches to CD Pin Threshold ...

Page 4

SELECTION GUIDE The package type, the detector threshold, the output type, and the taping type of R3112 Series can be designated at the users’ request by specifying the part number as follows; R3112 Code a Designation of Package Type; Q:SC-82AB ...

Page 5

ABSOLUTE MAXIMUM RATINGS Symbol Item V Supply Voltage DD V Output Voltage(CMOS) OUT1 V Output Voltage(Nch) OUT2 I Output Current OUT P Power Dissipation(SOT23-5) D Power Dissipation(SC82-AB) T Operating Temperature Range opt T Storage Temperature Range stg T Lead temperature ...

Page 6

R3112x271A/C Symbol Item -V Detector Threshold DET V Detector Threshold Hysteresis HYS I Supply Current SS V Maximum Operating Voltage DDH V Minimum Operating Voltage* DDL I Output Current OUT (Driver Output Pin pin Threshold Voltage TCD I ...

Page 7

TEST CIRCUITS *Pull-up circuit is not necessary for CMOS Output type, or R3112XXXXC. Supply Current Test Circuit R3112X Series GND Nch Driver Output Current Test Circuit V DD R3112 V IN Series OUT GND CD Pin ...

Page 8

TYPICAL CHARACTERISTICS 1) Supply Current vs. Input Voltage R3112X091X 1.5 1.2 Topt= 0.6 0 Input Voltage V R3112X271X 1.5 1.2 0 0.6 0 ...

Page 9

R3112X271X 2.90 2.85 2.80 2.75 2.70 2.65 2.60 -50 - Temperature Topt 3) Output Voltage vs. Input Voltage R3112X091X Nch Output Type: V 1.0 0.8 0.6 Topt=- 0.0 0 0.2 0.4 ...

Page 10

R3112X271X Nch Output Type: V 3.0 2.5 2.0 1.5 1.0 Topt=- 0.0 0.0 0.5 1.0 1.5 Input Voltage V R3112X451X Nch Output Type: V 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 Topt=-40 C ...

Page 11

R3112X271X =1. 0.5 1 1 Nch Driver Output Current vs. Input Voltage R3112X091X 2.0 1.5 1 0.5 Topt=85 C 0.0 0 0.2 0.4 0.6 ...

Page 12

Pch Driver Output Current vs. Input Voltage R3112X091C Input Voltage V R3112X271C ...

Page 13

R3112X271X 1.9 1.8 1.7 1.6 1.5 1.4 1.3 -50 - Temperature Topt 8) C Pin Output Current vs. Input Voltage D R3112X091X 1 0.8 0.6 Topt=- 0.2 0.4 0.6 ...

Page 14

C Pin Output Current vs (Topt=25°C) R3112X091X 0 0.6 0.5 0.4 0 0.2 0 0.2 0.4 0.6 V (V) DS R3112X271X =1.0V ...

Page 15

R3112X271X 1000 100 0.1 0.01 0.0001 0.001 External Capacitance Cd(uF) 11) Delay Circuit Resistance vs. Temperature R3112XXX1X -50 - Temperature Topt Rev. 1.10 ...

Page 16

TECHNICAL NOTES R3112x Series OUT GND GND Figure A Figure B When R3112XXX1A (Nch Open Drain Output Type) is used in Figure A or Figure B, if Impedance of Voltage Supply pIn, V and V ...

Related keywords