Datasheet > R3117K281A-TR-F

R3117K281A-TR-F

更新时间： 2023-08-15 00:00:00

品牌	Logo	应用领域
理光 - RICOH		/
页数	文件大小	规格书
29页	456K
描述
Power Supply Support Circuit, Fixed, 1 Channel, CMOS, 1 X 1 MM, LEAD FREE, DFN-4

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R3117K281A-TR-F 数据手册

R3117x SERIES

LOW VOLTAGE DETECTOR with SENSE pin

NO.EA-186-080617

OUTLINE

The R3117x 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.

Each of these ICs consists of a voltage reference unit, a comparator, resistors for detector threshold setting,

an output driver and a hysteresis circuit. The detector threshold is fixed with high accuracy internally and does

not require any adjustment.

The tolerance of the detector threshold is ±15mV (-V^DET1.5V) or ±1.0% (1.5V< -VDET). Since the sense pin is

separated from the V^DDpin of the IC, therefore, even if the sense pin voltage becomes to 0V, the output voltage

keeps its "L" level.

Two output types, Nch open drain type and CMOS type are available.

Three types of packages, SOT-23-5, SC-88A, and DFN(PLP)1010-4 are available.

FEATURES^∗

• Supply Current......................................................................Typ. 0.29µA (VDD=6.0V)

Consumption current through SENSE pin is not included.

• Range of Operating Voltage..................................................1.0V to 6.0V (-40°C Topt 105°C)

• Detector Threshold Range....................................................Stepwise setting with a step of 0.1V in the range

of 0.7V to 5.0V

• Accuracy Detector Threshold................................................±1.0% (-V^DET1.6V), ±15mV (-VDET<1.6V)

• Temperature-Drift Coefficient of Detector Threshold ............Typ. ±30ppm/°C

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

• Packages ..............................................................................SOT-23-5, DFN(PLP)1010-4, SC-88A

∗ Topt=25°C, unless otherwise noted.

APPLICATIONS

• CPU and Logic Circuit Reset

• Battery Checker

• Window Comparator

• Wave Shaping Circuit

• Battery Back-up Circuit

• Power Failure Detector

12 3 4 5 6 7...29

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