RT9816_13 Datasheet, PDF (1/10 Pages) Richtek Technology Corporation – Micro-Power Voltage Detectors

®
RT9816
Micro-Power Voltage Detectors with Manual Reset
General Description
Features
The RT9816 is a micro-power voltage detector with
deglitched manual reset input supervising the power supply
voltage level for microprocessors (μP) or digital systems.
It provides internally fixed threshold levels with 0.1V per
step ranging from 1.2V to 5V, which covers most digital
applications. It features low supply current of 3μA. The
RT9816 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 V_DD recovered upcrossing
the threshold level, the reset signal will be released after
a certain delay time. To pull reset signal low manually,
z Internally Fixed Threshold 1.2V to 5V in 0.1V Step
z High Accuracy ±1.5%
z Low Supply Current 3μA
z No External Components Required
z Quick Reset within 20μs
z Built-in Recovery Delay Include 0ms, 55ms, 220ms,
450ms Options
z 800ns Glitch Immunity of Manual Reset Input
z Low Functional Supply Voltage 0.9V
z N-Channel Open-Drain Output
z Small SC-82 Package
z RoHS Compliant and 100% Lead (Pb)-Free
just pull the manual reset input (MR) below the specified
V_IL level. RT9816 is provided in SC-82 package.
Applications
z Computers
Ordering Information
RT9816 ^-
z Controllers
z Intelligent Instruments
z Critical μP and μC Power Monitoring
Package Type
Y : SC-82
z Portable/Battery-Powered Equipment
Lead Plating System
P : Pb Free
Pin Configurations
G : Green (Halogen Free and Pb Free)
(TOP VIEW)
Threshold Voltage
12 : 1.2V
VDD MR
13 : 1.3V
4
3
:
49 : 4.9V
50 : 5.0V
2
GND RESET/
RESET
Reset Active Timeout Period
A = 0ms (RESET)
SC-82
B = 55ms (RESET)
C = 220ms (RESET)
Marking Information
D = 450ms (RESET)
E = 0ms (RESET)
For marking information, contact our sales representative
F = 55ms (RESET)
directly or through a Richtek distributor located in your
G = 220ms (RESET)
H = 450ms (RESET)
area.
Note :
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.
Copyright ©2013 Richtek Technology Corporation. All rights reserved.
DS9816-06 March 2013
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
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