Copyright ANPEC Electronics Corp.
Rev. A.4 - Dec., 2008
APR3001/2/3
www.anpec.com.tw1
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
• 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)
FeaturesGeneral Description
Applications
• Computers
• Cell Phones
• Portable Electronics
• µP Power Supply Monitoring
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.
Pin Configuration
SOT-23 (Top View)
Reset
1 2
3
GND
VCC
Reset
(3001/3)
(3002)
SOT-23-5 (Top View)
SOT-89 (Top View)
VCC GND
NCNC
1 2 3
45
Reset
Reset
(3001/3)
(3002)
GNDVCC
21 3
Reset
Reset
(3001/3)
(3002)
Copyright ANPEC Electronics Corp.
Rev. A.4 - Dec., 2008
APR3001/2/3
www.anpec.com.tw2
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
APR3001/2/3 -
Handling Code
Temperature Range
Package Code
Voltage Code
Date Code
X X
Voltage Code
01/2/3
APR3001/2/3
XXXXX 15
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
°
Assembly Material
Symbol Parameter Rating Unit
VCC VCC to GND -0.3 to 6 V
RESET to GND (Push-Pull Output) -0.3 to VCC +0.3
VRESET RESET to GND (Open Drain Output) -0.3 to 6 V
IMAX Maximum Continuous Input Current 20 mA
IRESET RESET/RESET Current 20 mA
dVcc/dt Rate of Rise of VCC 100 V/µs
TJ Junction Temperature Range -40 to 150 °C
TL Lead Soldering Temperature, 10 Seconds 260 °C
SOT-23 357
SOT-23-5 357
RTH,JA Thermal Resistance – Junction to Ambient
SOT-89 180
°C/W
PD Power Dissipation Internally Limited W
Ordering and Marking Information
Absolute Maximum Ratings
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).
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
Copyright ANPEC Electronics Corp.
Rev. A.4 - Dec., 2008
APR3001/2/3
www.anpec.com.tw3
PIN
NO. NAME FUNCTION
RESET
(APR3001/3)
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
1 RESET
(APR3002) RESET output remains high while VCC is below th
e reset threshold and remains so for a fixed time
period after VCC raises above the reset threshold.
2 GND Ground connection
3 VCC Supply Voltage (+1.2V to +6V)
Pin Description
Electrical Characteristics
VIN = 5V, TA = -40 to 85°C unless otherwise noted. Typical values are at TA=25°C, VCC = 5V for 4.38V versions, VCC =
3.3V for 3.08/2.93V versions, VCC = 3.0V for 2.63V. versions and VCC = 2.5V for 2.32V versions, VCC = 2.0V for 1.75V
versions , VCC = 1.8V for 1.5V versions.
APR3001/2/3
Symbol
Parameter Test Conditions Min. Typ. Max. Unit
VCC Supply Voltage 1.2 - 6 V
ICC Supply Current VCC=1.5V~6V - 1.5 4 µA
T A=-40 to 85°C - 3 5
T A=25°C - ±1.5%
-
VTH Reset Threshold T A=-40 to 85°C - ±2% -
VHYST Hysteresis Range - 20 - mV
TRTP Reset Timeout Period 150 250 350 ms
VOL Reset Output Low ISINK=1.2mA - - 0.5 V
VOH Reset Output High ISOURCE=0.6mA 0.8*VCC
- -
TD VCC to Reset Delay VCC=VTH to (VTH-100mV) - 25 - µS
ILE Reset Output Leakage - - 0.5 µA
VCC VCC
GND
100k
APR3003 RESET RESET
INPUT µP
VCC
GND
VCC VCC
GND
RESET
(RESET) RESET
INPUT µP
VCC
GND
APR3001
APR3002
Typical Application Circuit
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.4 - Dec., 2008
APR3001/2/3
www.anpec.com.tw4
Block Diagram
Vc c
GND
VREF
Reset
Generator
+ Timer
Oscillator
RESET
APR3001
Vc c
GND
VREF
Reset
Generator
+ Timer
Oscillator
RESET
APR3002
Vc c
GND
VREF
Reset
Generator
+ Timer
Oscillator
RESET
APR3003
Copyright ANPEC Electronics Corp.
Rev. A.4 - Dec., 2008
APR3001/2/3
www.anpec.com.tw5
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.4 - Dec., 2008
APR3001/2/3
www.anpec.com.tw6
0
5
10
15
20
25
30
35
40
45
50
0123456
Vcc=2.9V
Vcc=2.5V
Vcc=1.5
V
0
10
20
30
40
50
60
70
0123456
Vcc=4V
Vcc=3V
V
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 Operating Characteristics
Supply Current vs. Supply Voltage
Supply Current (µA)
Supply Voltage (V)
Maximum Transient Duration vs.
Reset Threshold Overdrive VTH - VCC
Maximum Transient Duration (µs)
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.4 - Dec., 2008
APR3001/2/3
www.anpec.com.tw7
0.994
0.996
0.998
1
1.002
1.004
1.006
1.008
-40 -20 020 40 60 80 100 120
0
0.5
1
1.5
2
2.5
3
3.5
-40 -20 020 40 60 80 100 120
Vcc=3V
Vcc=5V
0
100
200
300
400
500
600
-40 -20 020 40 60 80 100 120
0
10
20
30
40
50
60
-40 -20 020 40 60 80 100 120
VOD=100mV
Typical Operating Characteristics (Cont.)
Normalized Reset Threshold vs. Temperature
Normalized Reset Threshold (%)
Temperature (°C)
Reset Propagation Delay vs. Temperature
Reset Propagation Delay (µs)
Temperature (°C)
Reset Timeout Period vs. Temperature
Reset Timeout Period (ms)
Temperature (°C)
Supply Current vs. Temperature
Supply Current (µA)
Temperature (°C)
Copyright ANPEC Electronics Corp.
Rev. A.4 - Dec., 2008
APR3001/2/3
www.anpec.com.tw8
Power Up Power Down
Time (200ms/div)
Vcc to RESET Delay
Vcc(0.5V/div)
Vcc=VTH to (VTH-100mV)
RESET(2V/div)
Time (10µs/div)
Vcc(2V/div)
RESET(2V/div)
Vcc(2V/div)
RESET(2V/div)
Time (50ms/div)
Typical Operating Characteristics (Cont.)
Copyright ANPEC Electronics Corp.
Rev. A.4 - Dec., 2008
APR3001/2/3
www.anpec.com.tw9
Application Information
The APR3001/2/3 have the function to reject the transient
glitches from the power line. The Maximum Transient
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 35µs, it will generate a reset signal.
Connect a 0.1µF bypass capacitor to the VCC pin can
improve the transient immunity.
The APR3001/2/3 have 3 output stage versions: APR3001
is an active low push-pull output. When the VCC drops
below the reset threshold, the RESET output generates
a low signal. APR3002 is an active high push-pull output.
When the VCC drops below the reset threshold, the RE-
SET 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 VCC=1.2V; when it is 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 the ground to keep the reset output
low (see Figure 1). For The APR3002, a pull-up resistor
to the VCC is required to keep the valid reset output for
VCC below 1.2V.
RESET
VCC
GND
VCC
100K
Figure 1. Ensuring RESET Valid to VCC = 0 V
VCC
APR3003
RESET
GND
+3.3V +5.0V
VCC
GND
RESET
INPUT 5V
System
100k
Figure 2. APR3003 Open Drain Output with Multiple
Supplies
VCC Transient Rejection
Reset Output
Copyright ANPEC Electronics Corp.
Rev. A.4 - Dec., 2008
APR3001/2/3
www.anpec.com.tw10
Package Information
SOT-23-3
0
L
VIEW A
0.25
GAUGE PLANE
SEATING PLANE
A
A2
A1
e
D
E
E1
SEE
VIEW A
bc
e1
MAX.
0.057
0.051
0.024
0.006
0.009
0.0200.012
L0.30
0
e
e1
E1
E
D
c
b
0.08
0.30
0.60 0.012
0.95 BSC
1.90 BSC
0.22
0.50
0.037 BSC
0.075 BSC
0.003
MIN.
MILLIMETERS
S
Y
M
B
O
L
A1
A2
A
0.00
0.90
SOT-23-3
MAX.
1.45
0.15
1.30
MIN.
0.000
0.035
INCHES
°
8
°
0
°
8
°
0
1.40
2.60
1.80
3.00
2.70 3.10 0.122
0.071
0.1180.102
0.055
0.106
Note : Dimension D and E1 do not include mold flash, protrusions or gate
burrs. Mold flash, protrusion or gate burrs shall not exceed 10 mil
per side.
Copyright ANPEC Electronics Corp.
Rev. A.4 - Dec., 2008
APR3001/2/3
www.anpec.com.tw11
Package Information
SOT-23-5
MAX.
0.057
0.051
0.024
0.006
0.009
0.0200.012
L0.30
0
e
e1
E1
E
D
c
b
0.08
0.30
0.60 0.012
0.95 BSC
1.90 BSC
0.22
0.50
0.037 BSC
0.075 BSC
0.003
MIN.
MILLIMETERS
S
Y
M
B
O
L
A1
A2
A
0.00
0.90
SOT-23-5
MAX.
1.45
0.15
1.30
MIN.
0.000
0.035
INCHES
°
8
°
0
°
8
°
0
bc
e1
0
L
VIEW A
0.25
GAUGE PLANE
SEATING PLANE
A
A2A1
e
D
E
E1
SEE
VIEW A
1.40
2.60
1.80
3.00
2.70 3.10 0.122
0.071
0.1180.102
0.055
0.106
Note : 1. Follow JEDEC TO-178 AA.
2. Dimension D and E1 do not include mold flash, protrusions or gate
burrs. Mold flash, protrusion or gate burrs shall not exceed 10 mil
per side.
Copyright ANPEC Electronics Corp.
Rev. A.4 - Dec., 2008
APR3001/2/3
www.anpec.com.tw12
Package Information
SOT-89
S
Y
M
B
OMIN. MAX.
MILLIMETERS
SOT-89
MIN. MAX.
INCHES
A
C
e1
e
B
B1
D
D1
H
EL
E1
1.60
0.44
0.35 0.44
4.40 4.60
1.62 1.83
0.56
2.13
A
B
C
D
D1
E
E1
e
e1
B1 0.36 0.48
3.00 BSC
3.94 4.25
2.29 2.60
2.29
0.118 BSC
0.063
0.017
0.014 0.019
0.014 0.017
0.173 0.181
0.064 0.072
0.084
0.155 0.167
0.090 0.102
0.090
0.022
L0.89 0.035
H
1.50 BSC 0.059 BSC
1.40
1.20 0.047
0.055
L
Note : Follow JEDEC TO-243 AA.
Copyright ANPEC Electronics Corp.
Rev. A.4 - Dec., 2008
APR3001/2/3
www.anpec.com.tw13
Application
A H T1 C d D W E1 F
178.0±2.00
50 MIN.
8.4+2.00
-0.00
13.0+0.50
-0.20
1.5 MIN.
20.2 MIN.
8.0±0.30
1.75±0.10
3.5±0.05
P0 P1 P2 D0 D1 T A0 B0 K0
SOT-23-3
4.0±0.10
4.0±0.10
2.0±0.05
1.5+0.10
-0.00
1.0 MIN.
0.6+0.00
-0.40
3.20±0.20
3.10±0.20
1.50±0.20
Application
A H T1 C d D W E1 F
178.0±2.00
50 MIN.
8.4+2.00
-0.00
13.0+0.50
-0.20
1.5 MIN.
20.2 MIN.
8.0±0.30
1.75±0.10
3.5±0.05
P0 P1 P2 D0 D1 T A0 B0 K0
SOT-23-5
4.0±0.10
4.0±0.10
2.0±0.05
1.5+0.10
-0.00
1.0 MIN.
0.6+0.00
-0.40
3.20±0.20
3.10±0.20
1.50±0.20
Application
A H T1 C d D W E1 F
178.0±2.00
50 MIN.
12.4+2.00
-0.00
13.0+0.50
-0.20
1.5 MIN.
20.2 MIN.
12.0±0.30
1.75±0.10
5.50±0.05
P0 P1 P2 D0 D1 T A0 B0 K0
SOT- 89
4.0±0.10
8.0±0.10
2.0±0.05
1.5+0.10
-0.00
1.5 MIN.
0.6+0.00
-0.40
4.80±0.20
4.50±0.20
1.80±0.20
(mm)
Carrier Tape & Reel Dimensions
A
E1
A
B
W
F
T
P0
OD0
BA0
P2
K0
B0
SECTION B-B
SECTION A-A
OD1
P1
H
T1
A
d
Copyright ANPEC Electronics Corp.
Rev. A.4 - Dec., 2008
APR3001/2/3
www.anpec.com.tw14
Package Type Unit Quantity
SOT-23-3 Tape & Reel 3000
SOT-23-5 Tape & Reel 3000
SOT-89 Tape & Reel 1000
Devices Per Unit
Taping Direction Information
SOT-23-3
USER DIRECTION OF FEED
SOT-23-5
USER DIRECTION OF FEED
SOT-89
USER DIRECTION OF FEED
Copyright ANPEC Electronics Corp.
Rev. A.4 - Dec., 2008
APR3001/2/3
www.anpec.com.tw15
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
ESD MIL-STD-883D-3015.7 VHBM > 2KV, VMM > 200V
Latch-Up JESD 78 10ms, 1tr > 100mA
Reflow Condition (IR/Convection or VPR Reflow)
t 25 C to Peak
tp
Ramp-up
tL
Ramp-down
ts
Preheat
Tsmax
Tsmin
TL
TP
25
Temperature
Time
Critical Zone
TL to TP
°
Reliability Test Program
Classification Reflow Profiles
Profile Feature Sn-Pb Eutectic Assembly Pb-Free Assembly
Average ramp-up rate
(TL to TP) 3°C/second max. 3°C/second max.
Preheat
- Temperature Min (Tsmin)
- Temperature Max (Tsmax)
- Time (min to max) (ts)
100°C
150°C
60-120 seconds
150°C
200°C
60-180 seconds
Time maintained above:
- Temperature (TL)
- Time (tL) 183°C
60-150 seconds 217°C
60-150 seconds
Peak/Classification Temperature (Tp)
See table 1 See table 2
Time within 5°C of actual
Peak Temperature (tp) 10-30 seconds 20-40 seconds
Ramp-down Rate 6°C/second max. 6°C/second max.
Time 25°C to Peak Temperature 6 minutes max. 8 minutes max.
Note: All temperatures refer to topside of the package. Measured on the body surface.
Copyright ANPEC Electronics Corp.
Rev. A.4 - Dec., 2008
APR3001/2/3
www.anpec.com.tw16
Classification Reflow Profiles (Cont.)
Table 2. Pb-free Process – Package Classification Reflow Temperatures
Package Thickness Volume mm3
<350 Volume mm3
350-2000 Volume mm3
>2000
<1.6 mm 260 +0°C* 260 +0°C* 260 +0°C*
1.6 mm – 2.5 mm 260 +0°C* 250 +0°C* 245 +0°C*
≥2.5 mm 250 +0°C* 245 +0°C* 245 +0°C*
* Tolerance: The device manufacturer/supplier shall assure process compatibility up to and including the stated
classification temperature (this means Peak reflow temperature +0°C. For example 260°C+0°C) at the rated MSL
level.
Customer Service
Table 1. SnPb Eutectic Process – Package Peak Reflow Temperatures
Package Thickness Volume mm3
<350 Volume mm3
≥350
<2.5 mm 240 +0/-5°C 225 +0/-5°C
≥2.5 mm 225 +0/-5°C 225 +0/-5°C
Anpec Electronics Corp.
Head Office :
No.6, Dusing 1st Road, SBIP,
Hsin-Chu, Taiwan, R.O.C.
Tel : 886-3-5642000
Fax : 886-3-5642050
Taipei Branch :
2F, No. 11, Lane 218, Sec 2 Jhongsing Rd.,
Sindian City, Taipei County 23146, Taiwan
Tel : 886-2-2910-3838
Fax : 886-2-2917-3838