Datenblatt-pdf.com


A4810A Schematic ( PDF Datasheet ) - AiT Semiconductor

Teilenummer A4810A
Beschreibung ULTRA-LOW VOLTAGE DETECTOR
Hersteller AiT Semiconductor
Logo AiT Semiconductor Logo 




Gesamt 8 Seiten
A4810A Datasheet, Funktion
AiT Semiconductor Inc.
www.ait-ic.com
A4810A/B
HIGH PRECISION BUILT-IN DELAY CIRCUIT
FULL TEMP RANGE, ULTRA-LOW VOLTAGE DETECTOR
DESCRIPTION
FEATURES
The A4810A/B microprocessor supervisory circuit
can be used to monitor the power supplies in
microprocessor and digital systems. It provides a
reset to the microprocessor during power-up,
power-down, and brown-out conditions.
The function of the A4810A/B is to monitor the VDD
supply voltage, and assert a reset signal whenever
this voltage declines below the factory-programmed
reset threshold. The reset signal remains asserted
for 250ms after VDD rises above the threshold. The
A4810A/B has an active-low /RESET output.
Precise monitoring of 2.7V, 3.0V, 3.3V and
5.0V supplies
140 ms min. Power-On Reset pulse width,
250ms typical, has an active-low /RESET
Output
Guaranteed /RESET Output valid for VDD1.1V
Low Supply Current, 2μA Typ.
No external components needed
Specified over full temperature range
A4810A: -40°C to +85°C,
A4810B: -40°C to +105°C
Available in SOT-23 package
With a low supply current of only 2μA (Typ.), the
A4810A/B are ideal for use in portable equipment.
APPLICATION
A4810A/B is available in SOT-23 package.
Microprocessor Systems
Computers
ORDERING INFORMATION
Controllers
Intelligent Instruments
Package Type
Part Number
A4810AE3R-XXXDZ
SOT-23
A4810AE3VR-XXXDZ
E3 A4810BE3R-XXXDZ
A4810BE3VR-XXXDZ
XXX: Detector Voltage
263 = 2.63V ;
293 =2.93V
Note
D: Delay Time
250ms
Z: C=CMOS, N=Nch
V: Green Package
R: Tape & Reel
AiT provides all RoHS products
Suffix “V” means Halogen free Package
Portable/Battery-Powered Equipment
Automotive
TYPICAL APPLICATION
REV1.1
- APR 2011 RELEASED, SEP 2012 UPDATED -
-1-






A4810A Datasheet, Funktion
AiT Semiconductor Inc.
www.ait-ic.com
A4810A/B
HIGH PRECISION BUILT-IN DELAY CIRCUIT
FULL TEMP RANGE, ULTRA-LOW VOLTAGE DETECTOR
Negative VDD Transients
The A4810A/B protects μPs from brownouts and low VDD. Short duration transients of 100mV amplitude and
20μs or less duration typically do not cause a false RESET.
Valid Reset with VDD under 1.1V
To ensure logic inputs connected to the A4810A/B RESET pin are in a known state when VDD is under 1.1V, a
100kΩ pull-down resistor at RESET is needed. The value is not critical.
Figure 3 RESET Valid with VDD under 1.1V
Bi-directional Reset Pin Interfacing
The A4810A/B can interface with μP/μC bi-directional reset pins by connecting a 4.7kΩ resistor in series with
the A4810A/B reset output and the μP/μC bi-directional reset pin.
Figure 4 Bi-directional Reset Pin Interfacing
REV1.1
- APR 2011 RELEASED, SEP 2012 UPDATED -
-6-

6 Page







SeitenGesamt 8 Seiten
PDF Download[ A4810A Schematic.PDF ]

Link teilen




Besondere Datenblatt

TeilenummerBeschreibungHersteller
A4810AULTRA-LOW VOLTAGE DETECTORAiT Semiconductor
AiT Semiconductor
A4810BULTRA-LOW VOLTAGE DETECTORAiT Semiconductor
AiT Semiconductor

TeilenummerBeschreibungHersteller
CD40175BC

Hex D-Type Flip-Flop / Quad D-Type Flip-Flop.

Fairchild Semiconductor
Fairchild Semiconductor
KTD1146

EPITAXIAL PLANAR NPN TRANSISTOR.

KEC
KEC


www.Datenblatt-PDF.com       |      2020       |      Kontakt     |      Suche