Datasheet > R3112Q451C-TR-F

R3112Q451C-TR-F

更新时间： 2023-08-15 00:00:00

品牌	Logo	应用领域
理光 - RICOH		光电二极管
页数	文件大小	规格书
2页	139K
描述
Power Supply Support Circuit, Fixed, 1 Channel, +4.5VV, CMOS, PDSO4, ROHS COMPLIANT, SC-82AB, 4 PIN

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R3112Q451C-TR-F 数据手册

R3112x Series

Low Input VD with Delay Function

The R3112x Series are CMOS-based voltage detector ICs with the built-in output delay circuit, which can operate at low voltage.

The delay time can be set with an external capacitor.

FEATURES

• Supply Current (ISS1)·······················Typ. 0.5μA (VDD=-VDET+1V, R3112x15x)

• Operating Voltage Range (VDD) ······0.7V to 6.0V (Topt=25°C)

• Detector Threshold Accuracy ·······± 2%

Temp. coeff. of Detector Threshold···Typ. ± 100ppm/°C

• Two Output Types ··························Nch. Open Drain and CMOS

•

Detector Threshold Range (-VDET)·····0.9V to 5.0V (internally fixed)

• Output Delay ·································Typ. 100ms delay set with a 0.022μF external • Packages········································SON1612-6, SC-82AB,

capacitor

• Reset Signal ···································"L"

SC-88A, SOT-23-5

BLOCK DIAGRAMS

R3112xxxxA

R3112xxxxC

(Nch. open drain output)

(CMOS output)

V^DD

OUT

GND

R^D

OUT

GND

Vref

C^D

SELECTION GUIDES

TIMING CHART

Package

SON1612-6

SC-82AB

SC-88A

Quantity per Reel

Part No.

Release Voltage

+VDET

Supply

Voltage

(VDD)

Hysteresis

4,000 pcs

3,000 pcs

R3112D

xx.

∗-TR-F

Detector Threshold

VDET

R3112Q

∗-TR-F

Minimum Operating

Voltage

V^DDL

GND

SOT-23-5

R3112N

xx.

∗-TR-F

Pull-up Voltage

Output

Voltage

(VOUT)

xx.

: Specify the detector threshold within the range

0.9V (

) to 5.0V (

) in 0.1V steps.

GND

: Select the output type from (

) Nch. open drain or (

) CMOS.

∗

tPHL

R3112xxxxA

R3112xxxxC

PACKAGES (Top View)

HOW TO DETERMINE DELAY TIME

Letting the capacity of an external capacitor CD (F),

the delay time (t^D) is found from the following equation:

SON1612-6

SC-82AB

SC-88A

SOT-23-5

t^D=0.69 × 6.5 × 10⁶× CD (s)

OUT

GND

VDD

GND

VDD

GND

OUT

VDD

GND

OUT

APPLICATIONS

• Microcontroller and logic circuit reset

• Battery checker

• Window comparator

• Wave shaping circuit

• Battery back-up circuit

• Power failure detector

No.EK-091-091101

CMOS Voltage Detector

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