Copyright
ANPEC Electronics Corp.
Rev. A.3 - Feb., 2004
APR3001/2/3
www.anpec.com.tw
1
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise
customers to obtain the latest version of relevant information to verify before placing orders.
MicroPower Microprocessor Reset Circuit
Features
General Description
Applications
Computers
Cell Phones
Portable Electronics
P Power Supply Monitoring
The APR3001/2/3 are designed to monitor voltage
supplies in
P and digital systems. The quiescent
current is extremely low, typically 1.5 A, making it
ideal for portable battery operated equipment. The
APR3001/2/3 operate by monitoring the system
power supply voltage. When the input voltage drops
below a fixed threshold, the device asserts a reset
signal for a fixed time period after Vcc rises above
the fixed threshold.
The APR3001/2/3 series is avail-
able with three output stage versions : APR3001
push-pull active low output, APR3002 push-pull ac-
tive high output and APR3003 open drain active low
output. They are also designed to reject fast line tran-
sient glitches on Vcc. The APR3001/2/3 are come in
a miniature SOT-23, SOT-23-5, SOT-89 packages.
1.2V to 6V Input Voltage Range
Low Quiescent Current : less Than 1.5
A
High accuracy detection threshold : 1.5%
Fixed trimmed reset thresholds for 1.5V, 1.75V,
2.32V, 2.63V, 2.93V, 3.08V, 3.9V, 4.38V.
Reset Timeout Period 250ms
Available output configurations
- Open-drain output
- CMOS active high output
- CMOS active low output
SOT-23 , SOT-23-5 and SOT-89 packages
No external components
Pin Configuration
SOT-23 (Top
View)
R e s e t
1
2
3
G N D
V
C C
R e s e t
(3 0 0 1 /3 )
(3 0 0 2 )
SOT-23-5 (Top
View)
SOT-89 (Top
View)
V
CC
GND
NC
NC
1
2
3
4
5
Reset
Reset
(3001/3)
(3002)
GND
V
CC
2
1
3
Reset
Reset
(3001/3)
(3002)
Copyright
ANPEC Electronics Corp.
Rev. A.3 - Feb., 2004
APR3001/2/3
www.anpec.com.tw
2
Package Code
A : SOT-23 B : SOT-23-5 D : SOT-89
Temp. Range
I : -40 to 85 C
Handling Code
TR : Tape & Reel
Voltage Code :
15 : 1.5V ~ 43 : 4.38V
Lead Free Code
L : Lead Free Device Blank : Original Device
APR3001/2/3 -
Handling Code
Temp. Range
Package Code
Voltage Code
Date Code
X X
Voltage Code
01/2/3
APR3001/2/3
XXXXX 15
XXXXX - Date Code ; 15 - 1.5V
APR3001/2/3 -15 D :
APR3001/2/3 A/B :
A:1.5V B:1.75V C:2.32V D:2.63V E:2.93V F:3.08V G:3.9V H:4.38V
Lead Free Code
Ordering and Marking Information
Absolute Maximum Ratings
Symbol Parameter
Value
Unit
V
CC
V
CC
to GND
-0.3 to 6
V
RESET to GND (Push-Pull Output)
-0.3 to V
CC
+0.3
V
RESET
RESET to GND (Open Drain Output)
-0.3 to 6
V
I
MAX
Maximum Continuous Input Current
20
mA
I
RESET
RESET/RESET
Current
20
mA
dVcc/dt
Rate of Rise of V
CC
100
V/
s
T
J
Junction Temperature Range
-40 to 150
C
T
L
Lead Temperature (Soldering, 10 second)
260
C
SOT-23 357
SOT-23-5 357
R
TH,JA
Thermal Resistance Junction to Ambient
SOT-89 180
C/W
P
D
Power Dissipation
Internally Limited
W
Pin Function Descrpition
PIN
No. Name
Description
RESET
(APR3001/3)
RESET output remains low while V
CC
is below the reset threshold and remains
so for a fixed time period after V
CC
raises above the reset threshold
1
RESET
(APR3002)
RESET output remains high while V
CC
is below the reset threshold and remains
so for a fixed time period after V
CC
raises above the reset threshold.
2 GND
Ground
connection
3 V
CC
Supply Voltage (+1.2V to +6V)
Note: The pin sequence here might not be correct for all different package types, and please refer pin
configuration in page1 for correct pin assignment.
Copyright
ANPEC Electronics Corp.
Rev. A.3 - Feb., 2004
APR3001/2/3
www.anpec.com.tw
4
Part Number Description
Part Number
Part Description
APR3001
Reset Output Push Pull Active Low with Delay
APR3002
Reset Output Push Pull Active High with Delay
APR3003
Reset Output Open Drain Active Low with Delay
Electrical Characteristics
V
IN
= 5V, T
A
= -40 to 85
C unless otherwise noted. Typical values are at T
A
=25
C, V
CC
= 5V for 4.38V
versions, V
CC
= 3.3V for 3.08/2.93V versions, V
CC
= 3.0V for 2.63V. versions and V
CC
= 2.5V for 2.32V
versions, V
CC
= 2.0V for 1.75V versions , V
CC
= 1.8V for 1.5V versions.
APR3001/2/3
Symbol
Parameter Test
Conditions
Min. Typ. Max.
Unit
V
CC
Supply Voltage
1.2 6 V
I
CC
Supply Current
V
CC
=1.5V~6V
1.5
4
A
T
A
=-40 to 85C
3
5
T
A
=25C
1.5%
V
TH
Reset Threshold
T
A
=-40 to 85C
2%
V
HYST
Hysteresis Range
20
mV
T
RTP
Reset Timeout Period
150
250
350
ms
V
OL
Reset Output Low
I
SINK
=1.2mA
0.5
V
V
OH
Reset Output High
I
SOURCE
=0.6mA
0.8*V
CC
T
D
V
CC
to Reset Delay
V
CC
=V
TH
to (V
TH
-100mV) 25
S
I
LE
Reset Output Leakage
0.5
A
V
CC
V
CC
GND
100k
APR3003 RESET
RESET
INPUT
P
V
CC
GND
V
CC
V
CC
GND
RESET
(RESET)
RESET
INPUT
P
V
CC
GND
APR3001
APR3002
Application Circuit
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