Datasheet > R5101G003A

R5101G003A

更新时间： 2024-01-08 18:17:43

品牌	Logo	应用领域
理光 - RICOH		微处理器
页数	文件大小	规格书
17页	331K
描述
Microprocessor power management with Watchdog Timer

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R5101G003A 技术参数

生命周期：	Obsolete	包装说明：	,
Reach Compliance Code：	unknown	风险等级：	5.84

R5101G003A 数据手册

‘99.12.3

Microprocessor power management with Watchdog Timer

R5101G Series

12345

n OUTLINE

The R5101G Series are microprocessor power management ICs with high accuracy output voltage and

detector threshold and with ultra low supply current by CMOS process. Each of these ICs consists of a voltage

regulator, a voltage detector and a watchdog timer. Thus, the R5101G Series have the function of a power

management for microprocessor, a monitor of the voltage of a power source and a microprocessor supervisor.

The built-in voltage regulator with an internal driver transistor can supply typically 50mA current to a system

when the voltage difference between input and output is 2V. Therefore these ICs are very suitable for various

power supply systems for microprocessors. The output voltage is monitored by the voltage detector which is

built-in these ICs.

The built-in voltage detector has an output delay function and the delay time can be set by an external

capacitor(CD).

The output voltage and the detector threshold voltage can be set individually for each IC by laser trimming.

Furthermore, when a microprocessor works incorrectly, the watchdog timer which checks over microprocessor

generates reset signals intermittently to prevent a whole system from being malfunction.

The time period for watching and holding a reset signal of the watchdog timer can also be set individually

by an external capacitor(CTW).

n FEATURES

l Built-in a watchdog timer

l Time period for monitoring and generating a reset signal of the watchdog timer can be set by an external

capacitor

l Watchdog timer can be stopped individually by CE Pin

l Low supply current · · · · · · · · · · · · · · · · · · · · · · ·TYP. 5µA

l The output voltage of Voltage Regulator and the detector threshold voltage can be set individually with a step

of 0.1V for each IC by laser trim

l High Accuracy Output Voltage of Voltage Regulator and Detector Threshold · · · · ±2.5%

l Power-on Reset Delay Time can be set by an external capacitor

l Output Current · · · · · · · Typ. 50mA (at Vin - Vout = 2V)

l Small Package · · · Ultra-mini SSOP-8G (0.65mm pitch ) Refer to Package Dimensions

n APPLICATION

l Power source for microprocessors

n PIN CONFIGURATION

SSOP8G(0.65mm pitch)

Reset

SCK

GND

CTW

VDD

VOUT

12345

Rev. 1.10

- 1 -

12 3 4 5 6 7...17

中文翻译

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与R5101G003A相关器件

型号	品牌	获取价格	描述	数据表
R5101G003A-F	RICOH	获取价格	Power Management Circuit
R5101G004A	RICOH	获取价格	Microprocessor power management with Watchdog Timer
R5101G004A-F	RICOH	获取价格	Power Management Circuit
R5101G005A	RICOH	获取价格	Microprocessor power management with Watchdog Timer
R5101G005A-F	RICOH	获取价格	Power Management Circuit
R5101GXXXA	ETC	获取价格	Power Management ICs
R5101GXXXA-TR	RICOH	获取价格	Power Supply Management Circuit, Adjustable, 1 Channel, CMOS, PDSO8, HALOGEN FREE AND ROHS
R5102V	RICOH	获取价格	LDO Regulators with a Watchdog Timer
R5102V001A	RICOH	获取价格	LDO Regulators with a Watchdog Timer
R5102VXXXA	RICOH	获取价格	Power Management ICs

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