RT9828 Datasheet, PDF (1/7 Pages) Richtek Technology Corporation – Dual Micro-Power Voltage Detectors

RT9828
Dual Micro-Power Voltage Detectors
General Description
The RT9828 is a micro-power voltage detector supervising
the power supply voltage level for microprocessors (uP) or
digital systems. It provides internally fixed threshold levels
ranging from 1.2V to 5V, which covers most digital
applications. It features low supply current of 6uA. The
RT9828 performs supervisory function by sending out a
reset signal whenever the V_DD voltage falls below a preset
threshold level. This reset signal will last the whole period
before V_DD recovering. Once the V_DD exceeds the threshold
level, the reset signal will be released after a certain delay
time. The RT9828 is available in SOT-23-6 package.
Ordering Information
RT9828-
Package Type
E : SOT-23-6
Lead Plating System
P : Pb Free
G : Green (Halogen Free and Pb Free)
Note :
Threshold Voltage : RESET1/RESET2
WP : 1.6V/3.0V
GP : 1.8V/3.0V
Richtek 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.
Features
z High Accuracy ±1.5%
z Low Supply Current 6uA
z Quick Reset within 20us
z Built-in 55ms Recovery Delay
z Low Functional Supply Voltage 0.9V
z Dual N-Channel Open-Drain Output
z Small SOT-23-6 Packages
z RoHS Compliant and 100% Lead (Pb)-Free
Applications
z Computers
z Controllers
z Intelligent Instruments
z Critical uP and uC Power Monitoring
z Portable/Battery-Powered Equipment
Pin Configurations
(TOP VIEW)
RESET1 GND VDD2
6
5
4
2
3
VDD1 NC _RESET2
SOT-23-6
Marking Information
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area.
DS9828-02 April 2011
www.richtek.com
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