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RT9802-BGE PDF预览

RT9802-BGE

更新时间: 2024-11-27 03:29:15
品牌 Logo 应用领域
立锜 - RICHTEK /
页数 文件大小 规格书
5页 81K
描述
User Programmable Micro-Power Voltage Detectors

RT9802-BGE 数据手册

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Preliminary  
RT9802  
User Programmable Micro-Power Voltage Detectors  
General Description  
Features  
z User Programmable Threshold 1.5V to 5V in 0.1V  
The RT9802 is a micro-power voltage detector  
supervising the power supply voltage level for  
microprocessors (μP) or digital systems. It provides user  
programmable threshold levels with 0.1V step ranging  
from 1.5V to 5V, which covers most digital applications. It  
features low supply current of 3μA. Selection of VTH is  
easily achieved through 3 pins connected to GND, VDD or  
floating for different threshold voltage settings. Two versions  
of threshold voltages, 1.5V to 4V and 2.5V to 5V, which  
are programmed in factory are offered by customer  
demands.  
Step with ± 3% Accuracy  
z Low Supply Current 3μA  
z Quick Reset within 20μs  
z Built-in Recovery Delay 200ms  
z Low Functional Supply Voltage 0.9V  
z Small SOT-23-6 Package  
z RoHS Compliant and 100% Lead (Pb)-Free  
Applications  
z Computers  
z Controllers  
The RT9802 performs supervisory function by sending out  
a reset signal whenever the VDD voltage falls below a preset  
threshold level. This reset signal will last the whole period  
before VDD recovering. Reset signal will release after VDD  
is recovered and lasts for the whole period of ResetActive  
Time-out period.  
z Intelligent Instruments  
z Critical μP and μC Power Monitoring  
z Portable/Battery-Powered Equipment  
Marking Information  
For marking information, contact our sales representative  
directly or through a RichTek distributor located in your  
area, otherwise visit our website for detail.  
RT9802 is CMOS, active-low output and provided in  
SOT-23-6 package.  
Ordering Information  
Pin Configurations  
(TOP VIEW)  
-
RT9802  
Package Type  
E : SOT-23-6  
VSET1 VSET2 VDD  
Operating Temperature Range  
P : Pb Free with Commercial Standard  
G : Green (Halogen Free with Commer-  
cial Standard)  
6
1
5
2
4
3
Reset Threshold  
A : 2.5V to 5V  
B : 1.5V to 4V  
VSET0 GND  
RESET  
SOT-23-6  
Note :  
Note : There is no pin1 indicator on top mark for SOT-23-6  
type, and pin 1 will be lower left pin when reading top mark  
from left to right.  
RichTek Pb-free and Green products are :  
`RoHS compliant and compatible with the current require-  
ments of IPC/JEDEC J-STD-020.  
`Suitable for use in SnPb or Pb-free soldering processes.  
`100%matte tin (Sn) plating.  
DS9802-07 March 2007  
www.richtek.com  
1

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