http://www.datasheet4u.com

900,000+ Datasheet PDF Search and Download

Datasheet4U offers most rated semiconductors datasheets pdf




  Richtek Technology Electronic Components Datasheet  

RT9801 Datasheet

User Programmable Micro-Power Voltage Detectors

No Preview Available !

RT9801 pdf
Preliminary
RT9801
User Programmable Micro-Power Voltage Detectors
General Description
The RT9801 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 ~ 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… … …
Package Type
E : SOT-26
Operating temperature range
C: Commercial standard
Reset Threshold
A : 2.5V~5V
B : 1.5V~4V
Features
z User Programmable Threshold 1.5V to 5V in
0.1V 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-26 Package
Applications
z Computers
z Controllers
z Intelligent Instruments
z Critical µP and µC Power Monitoring
z Portable/Battery-Powered Equipment
Pin Configurations
Part Number
Pin Configurations
RT9801…CE
(Plastic SOT-26)
654
123
TOP VIEW
1. VSET0
2. GND
3. RESET
4. VDD
5. VSET2
6. VSET1
Typical Application Circuit
µP
GND
VDD
RESET
VSET0 VSET1
RT9801
GND VSET2
RESET VDD
Pull Up
RT9801B VTH = 2.5V in this example
DS9801-00 January 2002
www.richtek-ic.com.tw
1


  Richtek Technology Electronic Components Datasheet  

RT9801 Datasheet

User Programmable Micro-Power Voltage Detectors

No Preview Available !

RT9801 pdf
RT9801
Preliminary
Pin Description
Pin Name Pin Function
VSET0
Threshold Voltage Selection Pin 1
GND
Ground Pin
RESET
Reset Pulse Output, Negative Pulse
VDD
Power Pin
VSET1
Threshold Voltage Selection Pin 2
VSET2
Threshold Voltage Selection Pin 3
Function Block Diagram
Internal Clock
VDD
VSET0
VSET1
VSET2
VSET
CMP
Threshold Voltage Setting
TIMER
POR
Power On Reset
RESET
N
www.richtek-ic.com.tw
2
DS9801-00 January 2002


Part Number RT9801
Description User Programmable Micro-Power Voltage Detectors
Maker RichTek
Total Page 6 Pages
PDF Download
RT9801 pdf
Download PDF File
RT9801 pdf
View for Mobile






Related Datasheet

1 RT9801 USER PROGRAMMABLE MICRO POWER VOLTAGE DETECTORS ETC
ETC
RT9801 pdf
2 RT9801 User Programmable Micro-Power Voltage Detectors RichTek
RichTek
RT9801 pdf
3 RT9801A User Programmable Micro-Power Voltage Detectors RichTek
RichTek
RT9801A pdf
4 RT9801ACE USER PROGRAMMABLE MICRO POWER VOLTAGE DETECTORS ETC
ETC
RT9801ACE pdf
5 RT9801B User Programmable Micro-Power Voltage Detectors RichTek
RichTek
RT9801B pdf
6 RT9801BCE USER PROGRAMMABLE MICRO POWER VOLTAGE DETECTORS ETC
ETC
RT9801BCE pdf
7 RT9802 User Programmable Micro-Power Voltage Detectors Richtek Technology Corporation
Richtek Technology Corporation
RT9802 pdf
8 RT9807 Micro-Power Voltage Detector Richtek Technology Corporation
Richtek Technology Corporation
RT9807 pdf
9 RT9808 MICRO POWER VOLTAGE DETECTORS ETC
ETC
RT9808 pdf




Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

site map

webmaste! click here

contact us

Buy Components