APX803L
MICRO POWER VOLTAGE DETECTOR
Description
The APX803L is brand new micro-power voltage detector series
developed by Diodes Inc. with target to be used for microprocessor
(µP) supervisory circuits to monitor the power supplies in µP and
digital systems. It provides wide range of detection voltage level
ranging from 1.2V to 5.0V with 0.1V per step options fixed internally
from circuit design. As to supply current, APX803L series requires low
supply current level of 1µA (typical) which gives no burden to power
efficiency on systems requiring detection functions, such as smart
phone, battery-powered devices, Internet equipments and so on.
These circuits perform the supervisory function by sending out a reset
signal whenever it founds the monitored V
CC
level falls below a
chosen threshold voltage level and the reset signal will remain until
V
CC
recovers to a level higher than threshold voltage. The APX803L
has an open-drain output with an active-low output pin and features
several delay time options (0ms, 55ms, 220ms and 450ms) for
system need.
Pin Assignments
(Top View)
(Top View)
2
2
RESET
GND
V
CC
3
1
V
CC
3
GND
1
NEW PRODUCT
RESET
SOT23/SOT323
SOT23R/SC59
(Top View)
1
2
4
5
RESET
NC
The APX803L is available in two pin out variants of the 3-pin SOT23,
SOT323, SC59 and SOT25 packages.
V
CC
Features
•
•
•
•
•
•
•
•
•
•
Low Supply Current: 1.0µA (typ.), 2.5µA (max.)
Internal Fixed 1.2V to 5.0V Threshold with 0.1V Step
High Threshold Voltage Accuracy: ±1.5%
Quick Reset within 20μs
Built-in Recovery Delay Time Options: 0ms, 55ms, 220ms and
450ms
Open-Drain Output: Active Low
No External Components Required
SOT23, SOT323, SC59 and SOT25 Packages
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
GND
3
NC
SOT25
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.
Typical Applications Circuit
V
CC
C
IN
100nF
V
CC
100K
V
CC
APX803L
RESET
Microprocessor
INPUT
GND
GND
APX803L
Document number: DS38171 Rev. 2 - 2
1 of 22
www.diodes.com
April 2016
© Diodes Incorporated
APX803L
Pin Descriptions
Pin Number
SOT23
3
2
1
–
SOT23R
3
1
2
–
SOT25
2
1
3
4, 5
SOT323
3
2
1
–
SC59
3
1
2
-
Pin Name
V
CC
RESET
Function
Operating Voltage Input
Reset Output Pin, Open Drain Output: Active Low
Ground
No Connection
GND
NC
NEW PRODUCT
Functional Block Diagram
Absolute Maximum Ratings
(@T
A
= +25°C, unless otherwise specified. Note 4)
Symbol
V
CC
V
RESET
I
CC
I
O
θ
JA
Supply Voltage
RESET
Voltage (Open Drain)
Parameter
Rating
-0.3 to 6.0
-0.3 to 6.0
20
20
SOT23, SOT23R, SC59
200
200
275
Unit
V
V
mA
mA
Input Current
Output Current
Thermal Resistance Junction-to-Ambient
SOT25
SOT323
SOT23, SOT23R, SC59
°C/W
60
60
90
±4000
V
MM (Machine Model)
T
J
T
STG
Note:
θ
JC
Thermal Resistance Junction-to-Case
SOT25
SOT323
HBM (Human Body Model)
ESD
±200
-40 to +150
-65 to +150
°C
°C
Junction Temperature Range
Storage Temperature Range
4. Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “Recommended Operating Conditions” is not implied.
Exposure to “Absolute Maximum Ratings” for extended periods may affect device reliability.
APX803L
Document number: DS38171 Rev. 2 - 2
2 of 22
www.diodes.com
April 2016
© Diodes Incorporated
APX803L
Recommended Operating Conditions
(@T
A
= +25°C, unless otherwise specified.)
Symbol
T
A
V
CC
V
RESET
Parameter
Operating Ambient Temperature Range
Supply Voltage
RESET
Output Voltage
Min
-40
0.9
0
Max
+85
5.5
5.5
Unit
°C
V
V
NEW PRODUCT
Electrical Characteristics
(@T
A
= +25°C, unless otherwise specified.)
Symbol
I
CC
V
TH
∆V
TH
ΔV
TH
t
S
V
HYS
Supply Current
Reset Threshold
Threshold Voltage Accuracy
Reset Threshold Hysteresis
Parameter
Test Conditions
V
TH
+ 0.2V
T
A
= +25 C
T
A
= +25
°
C
V
TH-H
– V
TH-L
T
A
= -40 to +85°C
V
CC
= V
TH
to (V
TH
– 100mV)
°
Min
–
–
-1.5
–
–
–
–
Typ
1
1.2 to 5.0
–
0.01V
TH
50
20
0
55
220
450
–
Max
2.5
–
1.5
0.016V
TH
–
–
–
75
297
608
0.4
Unit
μA
V
%
mV
ppm/°C
µs
Reset Threshold Voltage Temperature
V
TH
×
ΔT
Coefficient
V
CC
Drop to
RESET
Delay
APX803L-XX
t
DELAY
Reset Active
Period
Timeout APX803L05-XX
APX803L20-XX
APX803L40-XX
V
OL
RESET
Output Voltage Low
V
CC
≥ 1.02 x V
TH
35
143
292
ms
V
CC
= V
TH
-0.2, I
SINK
= 3.5mA
–
V
Timing Diagram
t
S
Hystersis
Voltage (V
HYS
)
B
A
Release Voltage (V
TH_H
)
Detection Voltage (V
TH_L
)
Minimum Operating Voltage
GND
VCC
RESET
GND
t
DELAY
APX803L
Document number: DS38171 Rev. 2 - 2
3 of 22
www.diodes.com
April 2016
© Diodes Incorporated
APX803L
Performance Characteristics
RESET Threshold Voltage vs. Temperature
3.10
3.05
3.00
RESET Threshold Voltage vs. Temperature
4.40
APX803L20-29SR
4.35
4.30
4.25
4.20
4.15
4.10
4.05
4.00
-50
APX803L20-42SR
Threshold Voltage (V)
Threshold Voltage (V)
2.95
2.90
Rising
Rising
NEW PRODUCT
Falling
2.85
2.80
2.75
2.70
-50
Falling
-25
0
25
50
o
75
100
125
-25
0
25
50
o
75
100
125
Temperature ( C)
Temperature ( C)
RESET Active Timeout Period vs. Temperature
500
RESET Active Timeout Period vs. Temperature
500
RESET Active Timeout Period (ms)
RESET Active Timeout Period (ms)
450
400
350
300
250
200
150
100
50
0
-50
-25
0
25
50
APX803L20-29SR
450
400
350
300
250
200
150
100
50
0
-50
-25
0
25
50
o
APX803L20-42
75
100
125
75
100
125
Temperature (
o
C)
Temperature ( C)
Supply Current vs. Temperature
2.0
1.8
1.6
2.0
Supply Current vs. Supply Voltage
APX803L20-29
V
CC
=V
TH
+0.2V
Supply Current (µA)
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0.0
APX803L20-29SR
85
o
C
25
o
C
-40
o
C
Supply Current (µA)
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
-50
-25
0
25
50
75
100
125
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
Temperature (
o
C)
Supply Voltage (V)
APX803L
Document number: DS38171 Rev. 2 - 2
4 of 22
www.diodes.com
April 2016
© Diodes Incorporated
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