R3112Q451A

更新时间： 2024-11-22 22:08:55

品牌	Logo	应用领域
理光 - RICOH		输出元件
页数	文件大小	规格书
16页	268K
描述
LOW VOLTAGE DETECTOR WITH OUTPUT DELAY

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数据手册

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R3112Q451A 数据手册

2001. Apr. 4

LOW VOLTAGE DETECTOR WITH OUTPUT DELAY

R3112xxx1A/C Series

ꢀ 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 • • • • • •0.7 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

VDD

R^D

OUT

GND

OUT

GND

Vref

Rev. 1.10

- 1 -

12 3 4 5 6 7...16

中文翻译

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与R3112Q451A相关器件

型号	品牌	获取价格	描述	数据表
R3112Q451A-TR	RICOH	获取价格	LOW VOLTAGE DETECTOR WITH OUTPUT DELAY
R3112Q451A-TR-F	RICOH	获取价格	暂无描述
R3112Q451A-TR-FA	RICOH	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, CMOS, PDSO4, SC-82AB, 4-PIN
R3112Q451A-TR-FB	RICOH	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, CMOS, PDSO4, SC-82AB, 4-PIN
R3112Q451C	RICOH	获取价格	LOW VOLTAGE DETECTOR WITH OUTPUT DELAY
R3112Q451C-TR	RICOH	获取价格	LOW VOLTAGE DETECTOR WITH OUTPUT DELAY
R3112Q451C-TR-F	RICOH	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, +4.5VV, CMOS, PDSO4, ROHS COMPLIANT, SC-82
R3112Q451C-TR-FA	RICOH	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, CMOS, PDSO4, SC-82AB, 4-PIN
R3112Q461A	RICOH	获取价格	LOW VOLTAGE DETECTOR WITH OUTPUT DELAY
R3112Q461A-TR	RICOH	获取价格	暂无描述