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APX803S00-26SA-7

P1-P3P4-P6P7-P9
APX803S
Document number: DS39161 Rev. 2 - 2
1 of 9
www.diodes.com
January 2017
© Diodes Incorporated
APX803S
NEW PRODUCT
3-PIN MICROPROCESSOR RESET CIRCUIT
Description
The APX803S
is 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 5.0V, 3.3V, 3.0V and
2.5V powered circuits.
These circuits perform a single function: they assert a reset signal on
power up and whenever the V
CC
supply voltage declines below a
preset threshold, keeping
it asserted for a fixed period of time after
V
CC
has risen above the reset threshold. For the APX803S
this period
is a minimum of 1ms while for other APX803S
variants it is at least
140ms. 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.
The APX803S
is available with different reset thresholds suitable for
operation with a variety of supply voltages. The APX803S has
an
open drain active low
RESET
output and compliment Diodes
APX809S/810S which have push-
pull output stages. Low supply
current makes the APX803S
ideal for use in portable equipment. The
APX803S is available in two pin out variants of the 3-
pin SOT23
package.
Features
• Precision Monitoring of 2.5V, 3.0V, 3.3V, and 5.0V Power-
Supply
Voltages
• Fully Specified Over Temperature
• Open-drain
RESET
Active Low
• Power-On/Power Supply Glitch Reset Pulse
APX803S00 1.7ms (Typ.)
APX803S05 50ms (Typ.)
APX803S 240ms (Typ.)
• 10µA Supply Current (Typ.)
• Guaranteed Reset Valid to V
CC
= 1V
• Totally Lead-Free & Fully RoHS Compliant (Note 1 & 2)
• Halogen and Antimony Free. “Green” Device (Note 3)
Pin Assignments
(Top View)
1
2
GND
V
CC
APX803S
2
3
RESET
SOT23 (SA Package)
(Top View)
SOT23 (SR Package)
Applications
• Computers
• Controllers
• Intelligent Instruments
• Critical µP and µC Power Monitoring
• Portable/Battery Powered Equipment
Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
APX803S
Document number: DS39161 Rev. 2 - 2
2 of 9
www.diodes.com
January 2017
© Diodes Incorporated
APX803S
NEW PRODUCT
Typical Applications Circuit
APX803S
GND
RESET
V
CC
Microprocessor
V
CC
GND
RESET
INPUT
V
CC
C
IN
100nF
Pin Descriptions
Pin Number
Pin Name Description
SOT23 (SA Package) SOT23 (SR Package)
1 2 GND Ground
2 1
RESET
Reset Output Pin
Active Low Open Drain
3 3
V
CC
Operating Voltage Input
Functional Block Diagram
Absolute Maximum Ratings (@T
A
= +25°C, unless otherwise specified.)
Symbol
Parameter
Rating
Unit
ESD HBM Human Body Model ESD Protection 3 kV
ESD MM
Machine Model ESD Protection
400
V
ESD CDM Charged Device Model ESD Protection 1500 V
V
CC
Supply Voltage
-0.3 to +6.0
V
V
RESET
RESET
(Open Drain)
-0.3 to 6 V
I
CC
Input Current, V
CC
20 mA
I
O
Output Current,
RESET
20
mA
θ
JA
Thermal Resistance Junction-to-Ambient (SOT23 Package) 232 °C/W
θ
JC
Thermal Resistance Junction-to-Case (SOT23 Package)
87
°C/W
T
J
Junction Temperature +150 °C
T
ST
Storage Temperature Range
-65 to +150
°C
dV
CC
/dt
V
CC
Rate of Rise (V
CC
= 0 to V
T
)
100 V/µs
S
APX803S
Document number: DS39161 Rev. 2 - 2
3 of 9
www.diodes.com
January 2017
© Diodes Incorporated
APX803S
NEW PRODUCT
Recommended Operating Conditions (@T
A
= +25°C, unless otherwise specified.)
Symbol
Parameter
Min
Max
Unit
V
CC
Supply Voltage
1.0
5.5
V
V
RESET
RESET
Output Voltage
0 5.5 V
T
A
Operating Ambient Temperature Range
-40
+85
°C
Electrical Characteristics (Typical values are @ T
A
= +25°C, unless otherwise specified.)
Symbol Parameter Test Conditions Min Typ. Max Unit
I
CC
Supply Current
V
TH
+ 0.2V
— 10 15 μA
V
TH
Reset Threshold
APX803SXX-23
T
A
= +25°C
2.21 2.25 2.30
V
APX803SXX-26 2.59 2.63 2.67
APX803SXX-29 2.89 2.93 2.97
APX803SXX-31 3.04 3.08 3.13
APX803SXX-40 3.94 4.00 4.06
APX803SXX-44 4.31 4.38 4.45
APX803SXX-46 4.56 4.63 4.70
—
Reset Threshold Tempco
T
A
= -40°C to +85°C
— 30 — ppm/°C
t
S
V
CC
to
RESET
Delay
V
CC
= V
TH
to (V
TH
– 100mV)
— 20 — µs
t
DELAY
Reset Active
Timeout Period
APX803S-XX
V
CC
≥ 1.02 x V
TH
140 240 280
ms APX803S05-XX 20 50 70
APX803S00-XX 1 1.7 3.3
V
OL
RESET
Output Voltage Low
V
CC
= V
TH
-0.2V, I
SINK
= 1.2mA
— — 0.3
V
V
CC
= V
TH
-0.2V, I
SINK
= 3.5mA
— — 0.4
V
CC
> 1.0V, I
SINK
= 50µA
— — 0.3
I
OH
RESET
Output High Leakage Current
V
CC
> V
TH
+0.2V
— — 1 µA
P1-P3P4-P6P7-P9

APX803S00-26SA-7

Mfr. #:
Buy APX803S00-26SA-7
Manufacturer:
Diodes Incorporated
Description:
Supervisory Circuits 2.63V, 1.7ms MPU Reset Circuit
Lifecycle:
New from this manufacturer.
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