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A4809 Schematic ( PDF Datasheet ) - AiT Semiconductor

Teilenummer A4809
Beschreibung ULTRA-SMALL PACKAGE HIGH-PRECISION VOLTAGE DETECTOR
Hersteller AiT Semiconductor
Logo AiT Semiconductor Logo 




Gesamt 15 Seiten
A4809 Datasheet, Funktion
AiT Semiconductor Inc.
www.ait-ic.com
A4809
SUPERVISOR (RESET IC)
ULTRA-SMALL PACKAGE HIGH-PRECISION VOLTAGE
DETECTOR WITH DELAY CIRCUIT
DESCRIPTION
FEATURES
A4809 is a series of high precision voltage
detector with ultra low current consumption
(500nA typ. at VDD=VTH+1V) and a built-in delay
circuit. It can work at very low voltage, which
makes it perfect for system reset.
A4809 is composed of high precision voltage
reference, comparator, delay circuit, output driver
and resistor array. Internally preset detect voltage
has a low temperature drift and requires no
external trimming.
Two type of output, CMOS and N-channel
open-drain are available.
High-precision detection Voltage: ±2%
Detection Voltage: 1.6V~5.0V (in 0.1V steps)
Built-in Power on Reset Delay Time circuit:
Refer to Selection Guide
Operating Voltage range: 1.0V~6.0V
Ultra-low current consumption: 0.9uA typ.
(at VDD=3V)
Two Output forms: CMOS and N-channel
open-drain (Active Low)
Available in SOT-23 and SOT-23S packages
APPLICATION
A4809 is available in SOT-23 and SOT-23S
packages.
ORDERING INFORMATION
Power monitor for portable equipment such as
PDA, DSC, Mobile phone,Notebook,MP3
CPU and Logic Circuit Reset
Battery Checker
Battery Back-up Circuit
Power Failure Detector
Package
Type
Part Number
SOT-23
SOT-23S
A4809E3R-XXXDZ
E3
A4809E3VR-XXXDZ
E3S
A4809E3SR-XXXDZ
A4809E3SVR-XXXDZ
XXX: Detector Voltage
263=2.63V; 293=2.93V
D: Delay Time; 200mS
Note
Z: C=CMOS; N=Nch
V: Halogen Free Package
R: Tape & Reel
SPQ: 3,000pcs/Reel
AiT provides all RoHs products
Suffix V means Halogen Free Package
TYPICAL APPLICATION
REV3.0
- MAR 2006 RELEASED, JAN 2014 UPDATED -
-1-






A4809 Datasheet, Funktion
AiT Semiconductor Inc.
www.ait-ic.com
A4809
SUPERVISOR (RESET IC)
ULTRA-SMALL PACKAGE HIGH-PRECISION VOLTAGE
DETECTOR WITH DELAY CIRCUIT
7. "L" Output Voltage vs. Temperature (active L) 8. "H" Output Voltage vs. Temperature (active L)
REV3.0
- MAR 2006 RELEASED, JAN 2014 UPDATED -
-6-

6 Page









A4809 pdf, datenblatt
AiT Semiconductor Inc.
www.ait-ic.com
A4809
SUPERVISOR (RESET IC)
ULTRA-SMALL PACKAGE HIGH-PRECISION VOLTAGE
DETECTOR WITH DELAY CIRCUIT
Typical applications
Open drain OUTPUT
CMOS OUTPUT
NOTE
Please note that there is any possibility of circuit oscillation when resistance put in the line VIN.
Load current and load resistance should be adjusted, which not over power dissipation level.
We shall not be liable for any trouble or damage caused by using this circuit.
REV3.0
- MAR 2006 RELEASED, JAN 2014 UPDATED -
- 12 -

12 Page





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