APR3001/2/3
MicroPower Microprocessor Reset Circuit
Features
General Description
The APR3001/2/3 are designed to monitor voltage sup-
plies in
µP
and digital systems. The quiescent current is
extremely low, typically 1.5 µA, making it ideal for portable
battery operated equipment. The APR3001/2/3 are oper-
ated 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 are available with three output stage versions :
APR3001 push-pull active low output, APR3002 push-
pull active high output and APR3003 open drain active low
output. They are also designed to reject fast line transient
glitches on Vcc. The APR3001/2/3 come in a miniature
SOT-23, SOT-23-5, and SOT-89 packages.
•
•
•
•
•
•
1.2V to 6V Input Voltage Range
Low Quiescent Current : less than 1.5
µA
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
Lead Free and Green Devices Available
(RoHS Compliant)
Pin Configuration
V
CC
3
1
2
NC
NC
Applications
•
•
•
•
Computers
Cell Phones
Portable Electronics
µP
Power Supply Monitoring
5
1
2
4
3
(3001/3) Reset G N D
(3002) Reset
(3001/3) Reset
V
CC
GND
(3002) Reset
SOT-23 (Top View)
SOT-23-5 (Top View)
1
2
3
(3001/3) Reset
(3002) Reset
V
CC
GND
SOT-89 (Top View)
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.
Copyright
©
ANPEC Electronics Corp.
Rev. A.4 - Dec., 2008
1
www.anpec.com.tw
APR3001/2/3
Ordering and Marking Information
APR3001/2/3 -
Assembly Material
Handling Code
Temperature Range
Package Code
Voltage Code
APR3001/2/3 A/B : 01/2/3 X X
Package Code
A : SOT-23
B : SOT-23-5
D : SOT-89
Temperature Range
I : -40 to 85
°
C
Handling Code
TR : Tape & Reel
Voltage Code :
15 : 1.5V ~ 43 : 4.38V
Assembly Material
L : Lead Free Device
G : Halogen and Lead Free Device
Date Code
Voltage Code A:1.5V B:1.75V C:2.32V D:2.63V E:2.93V F:3.08V G:3.9V H:4.38V
APR3001/2/3 -15 D :
APR3001/2/3
XXXXX 15
Note: ANPEC lead-free products contain molding compounds/die attach materials and 100% matte tin plate termination finish; which
are fully compliant with RoHS. ANPEC lead-free products meet or exceed the lead-free requirements of IPC/JEDEC J-STD-020C for
MSL classification at lead-free peak reflow temperature. ANPEC defines “Green” to mean lead-free (RoHS compliant) and halogen
free (Br or Cl does not exceed 900ppm by weight in homogeneous material and total of Br and Cl does not exceed 1500ppm by
weight).
Absolute Maximum Ratings
Symbol
V
CC
V
RESET
I
MAX
I
RESET
dVcc/dt
T
J
T
L
V
CC
to GND
RESET to GND (Push-Pull Output)
RESET to GND (Open Drain Output)
Maximum Continuous Input Current
RESET/RESET Current
Rate of Rise of V
CC
Junction Temperature Range
Lead Soldering Temperature, 10 Seconds
SOT-23
R
TH,JA
Thermal Resistance – Junction to Ambient
SOT-23-5
SOT-89
P
D
Power Dissipation
Parameter
Rating
-0.3 to 6
-0.3 to V
CC
+0.3
-0.3 to 6
20
20
100
-40 to 150
260
357
357
180
Internally Limited
W
°C/W
mA
mA
V/µs
°C
°C
Unit
V
V
Part Number Description
PART NUMBER
APR3001
APR3002
APR3003
PART DESCRIPTION
Reset Output Push Pull Active Low with Delay
Reset Output Push Pull Active High with Delay
Reset Output Open Drain Active Low with Delay
Copyright
©
ANPEC Electronics Corp.
Rev. A.4 - Dec., 2008
2
www.anpec.com.tw
APR3001/2/3
Pin Description
NO.
PIN
NAME
RESET
(APR3001/3)
RESET
(APR3002)
GND
VCC
FUNCTION
RESET output remains low while VCC is below the reset threshold and remains so for a fixed time
period after VCC raises above the reset threshold
RESET output remains high while VCC is below the reset threshold and remains so for a fixed time
period after VCC raises above the reset threshold.
Ground connection
Supply Voltage (+1.2V to +6V)
1
2
3
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.
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.
Symbol
V
CC
I
CC
Parameter
Supply Voltage
Supply Current
V
CC
=1.5V~6V
T
A
=-40 to 85°C
V
TH
V
HYST
T
RTP
V
OL
V
OH
T
D
I
LE
Reset Threshold
Hysteresis Range
Reset Timeout Period
Reset Output Low
Reset Output High
V
CC
to Reset Delay
Reset Output Leakage
I
SINK
=1.2mA
I
SOURCE
=0.6mA
V
CC
=V
TH
to (V
TH
-100mV)
T
A
=25°C
T
A
=-40 to 85°C
Test Conditions
Min.
1.2
-
-
-
-
-
150
-
0.8*V
CC
-
-
APR3001/2/3
Typ.
-
1.5
3
±1.5%
±2%
20
250
-
-
25
-
Max.
6
4
5
-
-
-
350
0.5
-
-
0.5
µS
µA
mV
ms
V
V
µA
Unit
Typical Application Circuit
V
CC
V
CC
V
CC
100k
V
CC
V
CC
V
CC
APR3003 RESET
RESET
µ
P
INPUT
APR3001 RESET
APR3002 (RESET)
RESET
µ
P
INPUT
GND
GND
GND
GND
Copyright
©
ANPEC Electronics Corp.
Rev. A.4 - Dec., 2008
3
www.anpec.com.tw
APR3001/2/3
Block Diagram
V
c c
Reset
Generator
+ Timer
RESET
Oscillator
V
REF
GND
APR3001
V
c c
Reset
Generator
+ Timer
RESET
Oscillator
V
REF
GND
APR3002
V
c c
RESET
Reset
Generator
+ Timer
Oscillator
V
REF
GND
APR3003
4
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Copyright
©
ANPEC Electronics Corp.
Rev. A.4 - Dec., 2008
APR3001/2/3
Timing Chart
Reset Threshold
Reset Threshold
Vcc
(APR3002)
RESET
Reset Timeout Period 250ms
Vcc to Reset Delay 25us
(APR3001/3)
RESET
Copyright
©
ANPEC Electronics Corp.
Rev. A.4 - Dec., 2008
5
www.anpec.com.tw
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