Diodes APX809/810 - Manual

APX809/810
3-PIN MICROPROCESSOR RESET CIRCUITS
APX809/810 Rev. 4 1 of 9 FEBRUARY 2009
www.diodes.com © Diodes Incorporated
•
Precision Monitoring of +2.5V, +3V, +3.3V, and +5V
Power-Supply Voltages
•
Fully Specified Over Temperature
• Available in three Output Configurations
• Push-Pull RESET Active Low (APX809)
• Push-Pull RESET Active High (APX810)
•
200ms Typ Power-On Reset Pulse Width
•
30µA Supply Current (Typ.)
• Guaranteed Reset Valid to V
CC
= +1V
• No External Components
• SOT23 and SOT23R: Available in “Green” Molding
Compound (No Br, Sb)
• Lead Free Finish/RoHS Compliant (Note 1)
The APX809/810 are used for microprocessor (µP) supervisory
circuits to monitor the power supplies in µP and digital systems.
They provide excellent circuit reliability and low cost by
eliminating external components and adjustments when used
with +5V, +3.3V, +3.0V powered circuits.
These circuits perform a single function: they assert a reset
signal whenever the V
CC
supply voltage declines below a preset
threshold, keeping it asserted for at least 240ms after V
CC
has
risen above the reset threshold. Reset thresholds suitable for
operation with a variety of supply voltages are available. The
APX809/810 have push pull outputs. The APX809 have an active
low RESET output, while the APX810 has an active high
RESET output. The reset comparator is designed to ignore fast
transients on V
CC
, and the outputs are guaranteed to be in the
correct logic state for V
CC
down to 1V. Low supply current makes
the APX809/810 ideal for use in portable equipment. The
APX809/810 is available in a 3-pin SOT23 and SOT23R
packages.
• Computers
• Controllers
• Intelligent Instruments
•
Critical µP and µC Power Monitoring
• Portable/Battery
Powered Equipment
• Automotive
APX 8 XX - XX XX G - 7
Voltage Package Packing
7 : Tape & Reel
Enable Green
G : Green SA : SOT23
SR : SOT23R
46 : 4.63
44 : 4.38
40 : 4.00
31 : 3.08
29 : 2.93
26 : 2.63
23 : 2.25
09 : Active-Low
10 : Active-High
Device
Package
Code
Packaging
(Note 2)
7” Tape and Reel
Quantity Part Number Suffix
APX809-XXSAG-7 SA SOT23 3000/Tape & Reel -7
APX810-XXSAG-7 SA SOT23 3000/Tape & Reel -7
APX809-XXSRG-7 SR SOT23R 3000/Tape & Reel -7
APX810-XXSRG-7 SR SOT23R 3000/Tape & Reel -7
Notes: 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at
http://www.diodes.com/products/lead_free.html .
2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at
http://www.diodes.com/datasheets/ap02001.pdf .
Features General Description
Applications
Ordering Information