AP1701 Datasheet, PDF (1/9 Pages) Anachip Corp – 3-Pin Microprocessor Reset Circuits

AP1701/2/3/4
3-PIN MICROPROCESSOR RESET CIRCUITS
Features
• 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 Low Output (AP1701/3)
• Push-Pull RESET High Output (AP1702/4)
• 200ms Min. Power-On Reset Pulse Width
• 20µA Supply Current (Typ.)
• Guaranteed Reset Valid to V_CC = +1V
• Power Supply Transient Immunity
• No External Components
• Green Package: SC59-3L
• Lead Free Finish / RoHS Compliant (Note1)
General Description
The AP1701/2/3/4 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
AP1701/2/3/4 have push pull outputs. The AP1701/3 have an
active low RESET output, while the AP1702/4 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 AP1701/2/3/4 ideal for use in portable equipment. The
AP1701/2/3/4 is available in a 3-pin SC59 package.
Applications
• Computers
• Controllers
• Intelligent Instruments
• Critical µP and µC Power Monitoring
• Portable/Battery Powered Equipment
• Automotive
Ordering Information
AP170X X X X X
Enable
1 : Active-Low
2 : Active-High
3 : Active-Low
4 : Active-High
Voltage
A : 4.63
B : 4.38
C : 4.00
D : 3.08
E : 2.93
F : 2.63
G : 2.25
Package
W : SC59
Lead Free
L : Lead Free
G : Green
Packing
-7 : Taping
Notes: 1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7.
Device
Package Packaging
Code (Note 2)
AP170XXW
W
SC59
7” Tape and Reel
Quantity
Part Number Suffix
3000/Tape & Reel
-7
Notes: 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.
AP1701/2/3/4 Rev. 2
1 of 9
www.diodes.com
FEBRUARY 2007
© Diodes Incorporated