APR3011/2/3
MicroPower Microprocessor Reset Circuit
Features
•
•
•
•
•
•
1.2V to 6V Input Voltage Range
Low Quiescent Current : less Than 1.5
µA
High accuracy detection threshold : ±1.5%
General Description
The APR3011/2/3 are designed to monitor voltage
supplies in
µP
and digital systems. The quiescent
current is extremely low, typically 1.5 µA, making it
Fixed trimmed reset thresholds for 1.5V, 1.75V , ideal for portable battery operated equipment. The
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
APR3011/2/3 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 APR3011/2/3 series is avail-
able with three output stage versions : APR3011
push-pull active low output, APR3012 push-pull ac-
tive high output and APR3013 open drain active low
output. They are also designed to reject fast line tran-
sient glitches on Vcc. The APR3011/2/3 are come in
a miniature SOT-23, SOT-23-5, SOT-89 packages.
•
•
SOT-23 , SOT-23-5 and SOT-89 packages
No external components
Applications
•
•
•
•
Computers
Cell Phones
Portable Electronics
µP
Power Supply Monitoring
Pin Configuration
V
CC
3
1
2
NC
NC
5
1
2
4
3
GND Reset (3011/3)
Reset (3012)
GND V
CC
Reset (3011/3)
Reset (3012)
SOT-23 (Top View)
SOT-23-5 (Top View)
1
2
3
GND
V
CC
Reset (3011/3)
Reset (3012)
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.2 - Oct., 2003
1
www.anpec.com.tw
APR3011/2/3
Ordering and Marking Information
APR3011/2/3 -
Lead Free Code
Handling Code
Temp. Range
Package Code
Voltage Code
APR3011/2/3 A/B : 11/2/3 X X
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
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
XXXXX - Date Code
;
15 - 1.5V
APR3011/2/3 -15 D :
APR3011/2/3
XXXXX 15
Absolute Maximum Ratings
Symbol
V
CC
V
RESET
I
MAX
I
RESET
dVcc/dt
T
J
T
L
R
TH,JA
P
D
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 Temperature (Soldering, 10 second)
Thermal Resistance – Junction to Ambient
Power Dissipation
SOT-23
SOT-23-5
SOT-89
Parameter
Value
-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
Unit
V
V
mA
mA
V/µs
°C
°C
°C/W
W
Pin Function Descrpition
PIN
Name
GND
RESET
(APR3011/3)
RESET
(APR3012)
V
CC
Description
Ground connection
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
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.
Supply Voltage (+1.2V to +6V)
No.
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.
Copyright
ANPEC Electronics Corp.
Rev. A.2 - Oct., 2003
2
www.anpec.com.tw
APR3011/2/3
Block Diagram
V
c c
Reset
Generator
+ Timer
RESET
Oscillator
V
REF
GND
APR3011
V
c c
Reset
Generator
+ Timer
RESET
Oscillator
V
REF
GND
APR3012
V
c c
RESET
Reset
Generator
+ Timer
Oscillator
V
REF
GND
APR3013
3
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Copyright
ANPEC Electronics Corp.
Rev. A.2 - Oct., 2003
APR3011/2/3
Part Number Description
Part Number
APR3011
APR3012
APR3013
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
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
V
TH
V
HYST
T
RTP
V
OL
V
OH
T
D
I
LE
Parameter
Supply Voltage
Supply Current
Reset Threshold
Hysteresis Range
Reset Timeout Period
Reset Output Low
Reset Output High
V
CC
to Reset Delay
Reset Output Leakage
Test Conditions
V
CC
=1.5V~6V
T
A
=-40 to 85°C
T
A
=25°C
T
A
=-40 to 85°C
APR3011/2/3
Min.
Typ.
Max.
1.2
6
1.5
4
3
5
±1.5%
±2%
20
150
250
350
0.5
0.8*V
CC
25
0.5
Unit
V
µA
I
SINK
=1.2mA
I
SOURCE
=0.6mA
V
CC
=V
TH
to (V
TH
-100mV)
mV
ms
V
µS
µA
Application Circuit
V
CC
V
CC
V
CC
100k
V
CC
V
CC
V
CC
APR3013 RESET
RESET
µ
P
INPUT
APR3011 RESET
APR3012 (RESET)
RESET
µ
P
INPUT
GND
GND
GND
GND
Copyright
ANPEC Electronics Corp.
Rev. A.2 - Oct., 2003
4
www.anpec.com.tw
APR3011/2/3
Timing Chart
Reset Threshold
Reset Threshold
Vcc
(APR3012)
RESET
Reset Timeout Period 250ms
Vcc to Reset Delay 25us
(APR3011/3)
RESET
Copyright
ANPEC Electronics Corp.
Rev. A.2 - Oct., 2003
5
www.anpec.com.tw
