Advanced Power
Electronics Corp.
APE6809_6812
3PIN MICROPROCESSOR RESET CIRCUIT
FEATURES
DESCRIPTION
The APE6809_6812 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
Precision Monitoring of +2.5, +3V, +3.3V,
and +5V Power-Supply Voltages
Fully Specified Over Temperature
Available in Three Output Configurations
adjustments when used with +5V, +3.3V, +3.0V, +2.5V
Push-Pull
Low Output(APE6809/APE6811)
powered circuits.
RESET
These circuits perform a single function: they assert a reset
signal whenever the VCC supply voltage declines below a
preset threshold, keeping it asserted for at least 200ms after
VCC has risen above the reset threshold. Reset thresholds
suitable for operation with a variety of supply voltages are
available. The APE6809_6812 have push pull outputs. The
APE6809/APE6811 have an active low RESET output, while
the APE6810_6812 has an active high RESET output. The
reset comparator is designed to ignore fast transients on
VCC, and the outputs are guaranteed to be in the correct
logic state for VCC down to 1.0V. Low supply current makes
the APE6809_6812 ideal for use in portable equipment. The
APE6809_6812 is available in a 3-pin SOT-23 and SC-70
package.
Push-Pull RESET High Output(APE6810/APE6812)
200ms (Typ.)min Power-On Reset Pulse Width
25µA Supply Current
Guaranteed Reset Valid to VCC = +1.0V
Power Supply Transient Immunity
No External Components
Available in the 3-Pin Pb-Free SOT-23
and SC-70 Package
TYPICAL APPLICATION
VCC
VCC
VCC
Microprocessor
APE68XX
RESET
(RESET)
RESET
INPUT
GND
GND
PACKAGE / ORDERING INFORMATION
APE68XX X - X
(Top View)
(Top View)
RESET
1
2
1
2
GND
Enable
Package
Voltage
(RESET)
U : SC-70
N : SOT-23
APE6811
APE6812
09 : Active-Low
10 : Active-High
11 : Active-Low
12 : Active-High
A: 4.63
B: 4.38
C: 4.00
D: 3.08
E: 2.93
F: 2.63
G: 2.25
H: 2.70
I : 4.25
APE6809
APE6810
3
VCC
3
VCC
RESET
GND
(RESET)
SOT-23/SC-70
SOT-23/SC-70
Data and specifications subject to change without notice
1
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