Copyright
ANPEC Electronics Corp.
Rev. A.2 - Oct., 2003
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
5555555555.9
Features
General Description
Applications
•
Computers
•
Cell Phones
•
Portable Electronics
•
µ
P Power Supply Monitoring
The APR3001/2/3 are designed to monitor voltage
supplies in
µ
P 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 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
µ
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.2 - Oct., 2003
APR3001/2/3
www.anpec.com.tw
2
P ackage C od e
A : S O T -23 B : S O T -2 3-5 D : S O T -89
T em p. R an ge
C : 0 to 70 C I : -40 to 85 C
H an dling C o de
T R : T ape & R eel
V oltage C o de :
15 : 1.5V ~ 43 : 4.38V
A PR 3001/2/3 -
H an dling C o de
T em p. R an ge
P ackage C od e
V oltage C o de
D ate C ode
X X
V oltage C o de
01/2/3
A P R 3001/2/3
XXXXX 15
XXXXX - D ate C ode ; 15 - 1.5V
A P R 3001/2/3 -15 D :
A P R 3001/2/3 A /B :
A :1.5 V B :1.75V C :2.32 V D :2.63 V E :2.93 V F :3.08V G :3.9V H :4.38V
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/
µ
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.2 - Oct., 2003
APR3001/2/3
www.anpec.com.tw
3
Block Diagram
V
c c
GND
V
REF
Reset
Generator
+ Timer
Oscillator
RESET
APR3001
V
c c
GND
V
REF
Reset
Generator
+ Timer
Oscillator
RESET
APR3002
V
c c
GND
V
REF
Reset
Generator
+ Timer
Oscillator
RESET
APR3003
Copyright
ANPEC Electronics Corp.
Rev. A.2 - Oct., 2003
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
µ
A
T
A
=-40 to 85°C
3
5
T
A
=25°C
±1.5%
V
TH
Reset Threshold
T
A
=-40 to 85°C
±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
µ
S
I
LE
Reset Output Leakage
0.5
µ
A
V
CC
V
CC
GND
100k
APR3003 RESET
RESET
INPUT
µ
P
V
CC
GND
V
CC
V
CC
GND
RESET
(RESET)
RESET
INPUT
µ
P
V
CC
GND
APR3001
APR3002
Application Circuit
Copyright
ANPEC Electronics Corp.
Rev. A.2 - Oct., 2003
APR3001/2/3
www.anpec.com.tw
5
Timing Chart
Vcc
RESET
Reset Timeout Period 250ms
Vcc to Reset Delay 25us
Reset Threshold
Reset Threshold
RESET
(APR3002)
(APR3001/3)
Copyright
ANPEC Electronics Corp.
Rev. A.2 - Oct., 2003
APR3001/2/3
www.anpec.com.tw
6
0
5
10
15
20
25
30
35
40
45
50
0
1
2
3
4
5
6
Vcc=2.9V
Vcc=2V
Vcc=2.5V
Vcc=1.5
0
10
20
30
40
50
60
70
0
1
2
3
4
5
6
Vcc=4V
Vcc=3V
Vcc=5V
0
0.4
0.8
1.2
1.6
2
0
1
2
3
4
5
6
0
20
40
60
80
100
120
10
100
1000
Typical Characteristics
Supply Current vs. Supply Voltage
Supply Current (uA)
Supply Voltage (V)
Maximum Transient Duration vs.
Reset Threshold Overdrive VTH - VCC
Maximum Transient Duration (us)
Reset Threshold Overdrive VTH - VCC (mV)
Output Source Current vs. Reset High Output Voltage
Output Source Current (mA)
Reset High Output Voltage (V)
Output Sink Current vs. Reset Low Output Voltage
Output Sink Current (mA)
Reset Low Output Voltage (V)
generate a reset signal
never generate a reset signal
Copyright
ANPEC Electronics Corp.
Rev. A.2 - Oct., 2003
APR3001/2/3
www.anpec.com.tw
7
0.994
0.996
0.998
1
1.002
1.004
1.006
1.008
-40 -20
0
20
40
60
80 100 120
0
0.5
1
1.5
2
2.5
3
3.5
-40
-20
0
20
40
60
80
100 120
Vcc=3V
Vcc=5V
0
100
200
300
400
500
600
-40
-20
0
20
40
60
80
100 120
0
10
20
30
40
50
60
-40
-20
0
20
40
60
80
100 120
VOD=100mV
Typical Characteristics
Normalized Reset Threshold vs. Temperature
Normalized Reset Threshold (%)
Temperature (
°
C)
Reset Propagation Delay vs. Temperature
Reset Propagation Delay (us)
Temperature (
°
C)
Reset Timeout Period vs. Temperature
Reset Timeout Period (ms)
Temperature (
°
C)
Supply Current vs. Temperature
Supply Current (uA)
Temperature (
°
C)
Copyright
ANPEC Electronics Corp.
Rev. A.2 - Oct., 2003
APR3001/2/3
www.anpec.com.tw
8
Power Up
Typical Characteristics
Power Down
Time (200ms/div)
Vcc to RESET Delay
Vcc(0.5V/div)
Vcc=V
TH
to (V
TH
-100mV)
RESET(2V/div)
Time (10us/div)
Vcc(2V/div)
RESET(2V/div)
Vcc(2V/div)
RESET(2V/div)
Time (50ms/div)
Copyright
ANPEC Electronics Corp.
Rev. A.2 - Oct., 2003
APR3001/2/3
www.anpec.com.tw
9
Application Information
V
CC
Transient Rejection
The APR3001/2/3 have the function to reject the tran-
sient glitches from the power line. The Maximum Tran-
sient Duration vs. Reset Threshold Overdrive shows
at Typical Characteristics.The transient voltage with
the duration under the curve will not generate a reset
signal, e.g. a transient of 100mV below the reset
threshold voltage have the duration more than 35us, it
will generate a reset signal. Connect a 0.1uF bypass
capacitor to the V
CC
pin can improve the transient
immunity.
Reset Output
The APR3001/2/3 have 3 output stage versions:
APR3001 is an active low push-pull output, when the
V
CC
drops below the reset threshold, the RESET out-
put generates a low signal. APR3002 is an active high
push-pull output, when the V
CC
drops below the reset
threshold, the RESET output generates a high signal
(see Timing Chart). APR3003 is an active low open
drain output, the RESET output must be connected a
pull-up resistor to a supply voltage that is lower than
6V, it suits to use in multiple voltage systems (see
Figure 2). The APR3001 RESET output is valid until
the V
CC
=1.2V, below 1.2V the IC is shutdown, and
the output becomes a floating state. If it is a trouble, a
resistor should be connected from reset output to
ground to keep the reset output low (see Figure 1).
For The APR3002, a pull-up resistor to V
CC
is required
to keep the valid reset output for V
CC
below 1.2V.
RESET
V
CC
GND
V
CC
100K
Figure 1. Ensuring RESET Valid to V
CC
= 0 V
V
CC
APR3003
RESET
GND
+3.3V
+5.0V
V
CC
GND
RESET
INPUT
5V
System
100k
Figure 2. APR3003 Open Drain Output with Multiple
Supplies
Copyright
ANPEC Electronics Corp.
Rev. A.2 - Oct., 2003
APR3001/2/3
www.anpec.com.tw
10
Packaging Information
SOT-23
D
E
H
S
e
A
A1
L
C
B
3
2
1
M illimet ers
Inches
Dim
M in.
M ax.
M in.
M ax.
A
1.00
1.30
0.039
0.051
A1
0.00
0.10
0.000
0.004
B
0.35
0.51
0.014
0.020
C
0.10
0.25
0.004
0.010
D
2.70
3.10
0.106
0.122
E
1.40
1.80
0.055
0.071
e
1.90 BSC
0.075 BSC
H
2.40
3.00
0.094
0.118
L
0.37
0.0015
Copyright
ANPEC Electronics Corp.
Rev. A.2 - Oct., 2003
APR3001/2/3
www.anpec.com.tw
11
Packaging Information
SOT-23-5
e1
E1
E
b
1
2
3
4
5
e
D
A2
A
A1
L 2
L
L 1
a
Millimet ers
Inches
Dim
Min .
Max.
Min .
Max.
A
0.95
1.45
0.037
0.057
A1
0.05
0.15
0.002
0.006
A2
0.90
1.30
0.035
0.051
D
2.8
3.00
0.110
0.118
E
2.6
3.00
0.102
0.118
E1
1.5
1.70
0.059
0.067
L
0.35
0.55
0.014
0.022
L1
0.20 BSC
0.008 BSC
L2
0.5
0.7
0.020
0.028
N
5
5
α
0
°
10
°
0
°
10
°
Copyright
ANPEC Electronics Corp.
Rev. A.2 - Oct., 2003
APR3001/2/3
www.anpec.com.tw
12
Packaging Information
SOT-89 (Reference EIAJ ED-7500A Reg stration SC-62)
D
D1
e
B1
e1
B
1
2
3
L
H
E
C
a
a
A
M illim eters
Inches
Dim
M in.
M ax.
M in.
M ax.
A
1.40
1.60
0.055
0.063
B
0.40
0.56
0.016
0.022
B1
0.35
0.48
0.014
0.019
C
0.35
0.44
0.014
0.017
D
4.40
4.60
0.173
0.181
D1
1.35
1.83
0.053
0.072
e
1.50 BSC
0.059 BSC
e1
3.00 BSC
0.118 BSC
E
2.29
2.60
0.090
0.102
H
3.75
4.25
0.148
0.167
L
0.80
1.20
0.031
0.047
α
10
°
10
°
Copyright
ANPEC Electronics Corp.
Rev. A.2 - Oct., 2003
APR3001/2/3
www.anpec.com.tw
13
Reflow Condition
(IR/Convection or VPR Reflow)
Physical Specifications
Pre-heat temperature
183 C
Peak temperature
Time
°
temperature
Classification Reflow Profiles
Convection or IR/
Convection
VPR
Average ramp-up rate(183
°
C to Peak)
3
°
C/second max.
10
°
C /second max.
Preheat temperature 125 ± 25
°
C)
120 seconds max
Temperature maintained above 183
°
C
60 – 150 seconds
Time within 5
°
C of actual peak temperature 10 –20 seconds
60 seconds
Peak temperature range
220 +5/-0
°
C or 235 +5/-0
°
C 215-219
°
C or 235 +5/-0
°
C
Ramp-down rate
6
°
C /second max.
10
°
C /second max.
Time 25
°
C to peak temperature
6 minutes max.
Package Reflow Conditions
pkg. thickness
≥≥≥≥
2.5mm
and all bgas
pkg. thickness < 2.5mm and
pkg. volume
≥≥≥≥
350 mm³
pkg. thickness < 2.5mm and pkg.
volume < 350mm³
Convection 220 +5/-0
°
C
Convection 235 +5/-0
°
C
VPR 215-219
°
C
VPR 235 +5/-0
°
C
IR/Convection 220 +5/-0
°
C
IR/Convection 235 +5/-0
°
C
Terminal Material
Solder-Plated Copper (Solder Material : 90/10 or 63/37 SnPb)
Lead Solderability
Meets EIA Specification RSI86-91, ANSI/J-STD-002 Category 3.
Copyright
ANPEC Electronics Corp.
Rev. A.2 - Oct., 2003
APR3001/2/3
www.anpec.com.tw
14
Carrier Tape & Reel Dimensions
A
J
B
T2
T1
C
t
Ao
E
W
Po
P
Ko
Bo
D1
D
F
P1
Test item
Method
Description
SOLDERABILITY
MIL-STD-883D-2003
245°C,5 SEC
HOLT
MIL-STD 883D-1005.7
1000 Hrs Bias @ 125°C
PCT
JESD-22-B, A102
168 Hrs, 100% RH, 121°C
TST
MIL-STD 883D-1011.9
-65°C ~ 150°C, 200 Cycles
Reliability test program
A p p lic a tion
A
B
C
J
T 1
T 2
W
P
E
1 78
±
1
6 0
±
1 .0
1 2.0
2 .5
±
0 .15
9 .0
±
0 .5
1 .4
8 .0 + 0.3
- 0.3
4 .0
1 .7 5
F
D
D 1
P o
P 1
A o
B o
K o
t
S O T -23
3 .5
±
0 .05
1 .5 + 0.1
F
0 .1 M IN
4 .0
2 .0
±