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參數(shù)資料
| 型號(hào)： | RT9802A |
| 英文描述： | Power Management/Voltage Dector |
| 中文描述： | 電源管理/電壓Dector |
| 文件頁數(shù)： | 1/10頁 |
| 文件大?。?/td> | 72K |
| 代理商： | RT9802A |
Preliminary
RT9801
DS9801-02 August 2002
www.richtek.com
1
User Programmable Micro-Power Voltage Detectors
General Description
The RT9801 is a micro-power voltage detector
supervising the power supply voltage level for
microprocessors (
μ
P) 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 3
μ
A.
Selection of V
TH
is easily achieved through 3 pins
connected to GND, VDD or floating for different
threshold voltage settings. Two versions of threshold
voltages, 1.5V ~ 4V and 2.5V ~ 5V, which are
programmed in factory are offered by customer
demands.
The RT9801 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 Reset Active Time-out
period.
RT9801 is N-channel, open-drain output and
provided in SOT-26 package.
Ordering Information
RT9801
Marking Information
Part Number
Marking
RT9801ACE
1J
RT9801BCE
1K
Features
z
User Programmable Threshold 1.5V to 5V in
0.1V Step with
±
3% Accuracy
z
Low Supply Current 3
μ
A
z
Quick Reset within 20
μ
S
z
Built-in Recovery Delay 200mS
z
Low Functional Supply Voltage 0.9V
z
Small SOT-26 Package
Applications
z
Computers
z
Controllers
z
Intelligent Instruments
z
Critical
μ
P and
μ
C Power Monitoring
z
Portable/Battery-Powered Equipment
Pin Configurations
Part Number
Pin Configurations
RT9801
CE
(Plastic SOT-26)
TOP VIEW
1.
2.
3.
4.
5.
6.
VSET0
GND
RESET
VDD
VSET2
VSET1
Typical Application Circuit
Operating temperature range
C: Commercial standard
Reset Threshold
A : 2.5V~5V
B : 1.5V~4V
Package Type
E : SOT-26
VSET0
GND
RESET
VSET1
VSET2
VDD
GND
RESET
VDD
Pull Up
RT9801B V
TH
= 2.5V in this example
μ
P
RT9801
6
4
3
2
1
5
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| RT9802B | Power Management/Voltage Dector |
| RTAF0000 | MONTAGE CLIP |
| RTC-4503 | Real-Time Clock |
| RTC-4553A | Real-Time Clock |
| RTC-4553AA | Real-Time Clock |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| RT9802-AGE | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:User Programmable Micro-Power Voltage Detectors |
| RT9802-APE | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:User Programmable Micro-Power Voltage Detectors |
| RT9802B | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Power Management/Voltage Dector |
| RT9802-BGE | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:User Programmable Micro-Power Voltage Detectors |
| RT9802-BPE | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:User Programmable Micro-Power Voltage Detectors |
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