Datasheet > R5105N491C-TR

R5105N491C-TR

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
17页	899K
描述
Power Supply Management Circuit, Fixed, 1 Channel, CMOS, PDSO6, 2.80 X 2.90 MM, SOT-23, 6 PIN

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R5105N491C-TR 数据手册

R5105N SERIES

Microprocessor Supervisory Circuit

OUTLINE

NO.EA-159-080808

The R5105N Series are CMOS-based microprocessor supervisory circuit, or high accuracy and ultra low

supply current voltage detector with built-in delay circuit and watchdog timer. When the supply voltage is down

across the threshold, or the watchdog timer does not detect the system clock from the microprocessor, the reset

output is generated.

The voltage detector circuit is used for the system reset, etc. The detector threshold is fixed internally, and the

accuracy is ±1.0%. The released delay time (Power-on Reset Delay) circuit is built-in, and output delay time is

adjustable with an external capacitor, and the accuracy is ±16%*. When the supply voltage becomes higher

than the released voltage, the reset state will be maintained during the delay time. The output type of the reset

is selectable, Nch open-drain, or CMOS.

The time out period of the watchdog timer can be also set with an external capacitor, and the accuracy is

±33%*.

There are another 4 products by the difference of packages and the function of voltage detector and

watchdog timer. The package of R5105N is SOT-23-6.

FEATURES

• Supply Current......................................................................Typ. 11µA

• Operating Voltage Range .....................................................0.9V to 6.0V

< Voltage Detector Part >

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

range of 1.5V to 5.5V

• Detector Threshold Accuracy................................................±1.0%

• Power-on Reset Delay Time accuracy .................................±16%* (-40°C Topt 105°C)

• Power-on reset delay time of the voltage detector...............Typ. 370ms with an external capacitor : 0.1µF

< Watchdog Timer Part >

• Built-in a watchdog timer's time out period accuracy ...........±33%* (-40°C Topt 105°C)

• Timeout period for watchdog timer .......................................Typ. 310ms with an external capacitor : 0.1µF

• Reset timer for watchdog timer.............................................Typ. 34ms with an external capacitor : 0.1µF

• Package................................................................................SOT-23-6

*) Accuracy to center value of (Min.+Max.)/2

APPLICATIONS

• Supervisory circuit for equipment with using microprocessors.

12 3 4 5 6 7...17

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型号	品牌	描述	获取价格	数据表
R5105N491C-TR-FE	RICOH	Power Supply Management Circuit, Fixed, 1 Channel, CMOS, PDSO6, HALOGEN FREE AND ROHS COMP	获取价格
R5105N501A-TR	RICOH	Power Supply Management Circuit, Fixed, 1 Channel, CMOS, PDSO6, 2.80 X 2.90 MM, SOT-23, 6	获取价格
R5105N501A-TR-FE	RICOH	Power Supply Management Circuit, Fixed, 1 Channel, CMOS, PDSO6, HALOGEN FREE AND ROHS COMP	获取价格
R5105N501A-TR-JE	RICOH	Power Supply Management Circuit,	获取价格
R5105N511A-TR	RICOH	Power Supply Management Circuit, Fixed, 1 Channel, CMOS, PDSO6, 2.80 X 2.90 MM, SOT-23, 6	获取价格
R5105N511C-TR-FE	RICOH	Power Supply Management Circuit, Fixed, 1 Channel, CMOS, PDSO6, HALOGEN FREE AND ROHS COMP	获取价格