Anpec APR3021-32A Micropower microprocessor reset circuit Datasheet

APR3021/2/3
MicroPower Microprocessor Reset Circuit
Features
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General Description
1.2V to 5.5V Input Voltage Range
The APR3021/2/3 are designed to monitor voltage
Low Quiescent Current : less Than 1.5 µA
supplies in µP and digital systems. The quiescent
High accuracy detection threshold : ±1.5%
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.
APR3021/2/3 operate by monitoring the system
Reset Timeout Period 250ms
power supply voltage. When the input voltage drops
Available output configurations
below a fixed threshold, the device asserts a reset
- Open-drain output
- CMOS active high output
- CMOS active low output
signal for a fixed time period after Vcc rises above
the fixed threshold. The APR3021/2/3 series is available with three output stage versions : APR3021
SOT-23 , SOT-23-5 and SOT-89 packages
push-pull active low output, APR3022 push-pull ac-
No external components
tive high output and APR3023 open drain active low
Applications
output. They are also designed to reject fast line transient glitches on Vcc. The APR3021/2/3 are come in
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a miniature SOT-23, SOT-23-5, SOT-89 packages.
Computers
Cell Phones
Pin Configuration
Portable Electronics
µP Power Supply Monitoring
NC
GND
3
5
1
(3 0 2 1 /3 ) R e s e t
(3 0 2 2 ) R e s e t
2
1
(3021/3) Reset
(3022) Reset
4
2
3
(3021/3) Reset GND V CC
(3022) Reset
V CC
SOT-23 (Top View)
1
NC
2
3
GND
V CC
SOT-23-5 (Top View)
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
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APR3021/2/3
Ordering and Marking Information
P a cka g e C o d e
A : S O T -23
B : S O T -23-5
D : S O T -89
T e m p . R a nge
I : -4 0 to 85 ° C
H andling C ode
T R : T ape & R eel
V o ltage C o de :
15 : 1.5V ~ 43 : 4 .38 V
Lea d F re e C ode
L : L e a d F re e D evice
B la n k : O rigin a l D e vice
A P R 3 02 1/2 /3 Lea d F re e C ode
H andling C ode
T e m p . R a nge
P a cka g e C o d e
V o ltage C o de
A P R 3 021/2/3 A /B : 21 /2/3 X X
A P R 3 021/2/3 -15 D :
D ate C ode
V o ltage C o de A :1.5V B :1.75V C :2.32V D :2.63V E :2.93V F :3.0 8V G :3.9V H :4.3 8V
A P R 3 021/2/3
XX XX X
15
XX XX X
- D ate C ode
;
15 - 1.5V
Absolute Maximum Ratings
Symbol
VCC
Parameter
VCC to GND
Value
Unit
-0.3 to 6
V
VRESET
RESET to GND (Push-Pull Output)
RESET to GND (Open Drain Output)
-0.3 to VCC +0.3
-0.3 to 6
V
IMAX
Maximum Continuous Input Current
20
mA
RESET/RESET Current
20
mA
Rate of Rise of VCC
100
V/µs
-40 to 150
°C
260
357
357
180
Internally Limited
°C
IRESET
dVcc/dt
TJ
Junction Temperature Range
TL
Lead Temperature (Soldering, 10 second)
RTH,JA
Thermal Resistance – Junction to Ambient
PD
SOT-23
SOT-23-5
SOT-89
Power Dissipation
°C/W
W
Pin Descrpition
No.
1
2
3
PIN
Name
RESET
(APR3021/3)
RESET
(APR3022)
VCC
GND
Description
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.
Supply Voltage (+1.2V to +6V)
Ground connection
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
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APR3021/2/3
Block Diagram
Vc c
Reset
Generator
+ Timer
RESET
Oscillator
VREF
APR3021
GND
Vc c
Reset
Generator
+ Timer
RESET
Oscillator
VREF
APR3022
GND
RESET
Vc c
Reset
Generator
+ Timer
Oscillator
VREF
GND
Copyright  ANPEC Electronics Corp.
Rev. A.2 - Oct., 2003
APR3023
3
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APR3021/2/3
Part Number Description
Part Number
APR3021
APR3022
APR3023
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
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.
Symbol
Parameter
VCC
ICC
Supply Voltage
Supply Current
VTH
Reset Threshold
VHYST
TRTP
VOL
VOH
TD
ILE
Test Conditions
VCC=1.5V~6V
T A=-40 to 85°C
T A=25°C
T A=-40 to 85°C
Hysteresis Range
Reset Timeout Period
Reset Output Low
Reset Output High
VCC to Reset Delay
Reset Output Leakage
ISINK=1.2mA
ISOURCE=0.6mA
VCC=VTH to (VTH-100mV)
APR3021/2/3
Min.
Typ.
Max.
1.2
6
1.5
4
3
5
±1.5%
±2%
20
150
250
350
0.5
0.8*VCC
25
0.5
Unit
V
µA
mV
ms
V
µS
µA
Application Circuit
VCC
VCC
VCC
100k
APR3023 RESET
GND
Copyright  ANPEC Electronics Corp.
Rev. A.2 - Oct., 2003
VCC
VCC
RESET µ P
INPUT
APR3021 RESET
APR3022 (RESET)
GND
GND
4
VCC
RESET
µP
INPUT
GND
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APR3021/2/3
Timing Chart
Reset Threshold
Reset Threshold
Vcc
(APR3022)
RESET
Reset Timeout Period 250ms
Vcc to Reset Delay 25us
(APR3021/3)
RESET
Copyright  ANPEC Electronics Corp.
Rev. A.2 - Oct., 2003
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APR3021/2/3
Typical Characteristics
Maximum Transient Duration vs.
Reset Threshold Overdrive VTH - VCC
Supply Current vs. Supply Voltage
Maximum Transient Duration (us)
2
Supply Current (uA)
1.6
1.2
0.8
0.4
0
0
1
2
3
4
5
120
100
generate a reset signal
80
60
40
20
never generate a reset signal
0
6
10
Supply Voltage (V)
1000
Reset Threshold Overdrive VTH - VCC (mV)
Output Source Current vs. Reset High Output Voltage
Output Sink Current vs. Reset Low Output Voltage
70
50
Vcc=5V
50
Vcc=4V
40
30
Vcc=2.9V
45
60
Output Sink Current (mA)
Output Source Current (mA)
100
Vcc=3V
20
10
0
40
35
Vcc=2.5V
30
25
Vcc=2V
20
15
Vcc=1.5
10
5
0
0
1
2
3
4
5
6
0
2
3
4
5
6
Reset Low Output Voltage (V)
Reset High Output Voltage (V)
Copyright  ANPEC Electronics Corp.
Rev. A.2 - Oct., 2003
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6
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APR3021/2/3
Typical Characteristics
Reset Propagation Delay vs. Temperature
60
1.008
Reset Propagation Delay (us)
Normalized Reset Threshold (%)
Normalized Reset Threshold vs. Temperature
1.006
1.004
1.002
1
0.998
0.996
0.994
50
40
VOD=100mV
30
20
10
0
-40 -20
0
20
40
60
80
100 120
-40
-20
0
Temperature (°C)
40
60
80
100 120
Temperature (°C)
Reset Timeout Period vs. Temperature
Supply Current vs. Temperature
600
3.5
500
3
Supply Current (uA)
Reset Timeout Period (ms)
20
400
300
200
100
2.5
Vcc=5V
2
1.5
Vcc=3V
1
0.5
0
0
-40
-20
0
20
40
60
80
100 120
-40
Temperature (°C)
Copyright  ANPEC Electronics Corp.
Rev. A.2 - Oct., 2003
-20
0
20
40
60
80
100 120
Temperature (°C)
7
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APR3021/2/3
Typical Characteristics
Power Down
Power Up
Vcc(2V/div)
Vcc(2V/div)
RESET(2V/div)
RESET(2V/div)
Time (50ms/div)
Time (200ms/div)
Vcc to RESET Delay
Vcc(0.5V/div)
Vcc=V TH to (VTH-100mV)
RESET(2V/div)
Time (10us/div)
Copyright  ANPEC Electronics Corp.
Rev. A.2 - Oct., 2003
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APR3021/2/3
Application Information
VCC Transient Rejection
V CC
The APR3021/2/3 have the function to reject the tranV CC
sient glitches from the power line. The Maximum Transient Duration vs. Reset Threshold Overdrive shows
RESET
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 VCC pin can improve the transient
immunity.
100K
GND
Figure 1. Ensuring RESET Valid to VCC = 0 V
Reset Output
+3.3V
The APR3021/2/3 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. APR3022 is an active high
push-pull output, when the VCC drops below the reset
threshold, the RESET output generates a high signal
(see Timing Chart). APR3023 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 APR3021 RESET output is valid until
the VCC=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 APR3022, a pull-up resistor to VCC is required
to keep the valid reset output for VCC below 1.2V.
Copyright  ANPEC Electronics Corp.
Rev. A.2 - Oct., 2003
+5.0V
V CC
V CC
APR3023
RESET
GND
100k
RESET 5V
INPUT System
GND
Figure 2. APR3023 Open Drain Output with Multiple
Supplies
9
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APR3021/2/3
Packaging Information
SOT-23
D
B
3
E
H
2
1
e
A
L
A1
D im
A
A1
B
C
D
E
e
H
L
C
M illim e t e rs
M in .
1 .0 0
0 .0 0
0 .3 5
0 .1 0
2 .7 0
1 .4 0
In c h e s
M ax.
1 .3 0
0 .1 0
0 .5 1
0 .2 5
3 .1 0
1 .8 0
M in .
0 .0 3 9
0 .0 0 0
0 .0 1 4
0 .0 0 4
0 .1 0 6
0 .0 5 5
3 .0 0
0 .0 9 4
0 .0 1 5
1 .9 0 /2 .1 B S C
2 .4 0
0 .3 7
Copyright  ANPEC Electronics Corp.
Rev. A.2 - Oct., 2003
M ax.
0 .0 5 1
0 .0 0 4
0 .0 2 0
0 .0 1 0
0 .1 2 2
0 .0 7 1
0 .0 7 5 /0 .0 8 3 B S C
10
0 .11 8
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APR3021/2/3
Packaging Information
SOT-23-5
e1
5
4
E1
1
E
3
2
e
b
D
A2
A
a
A1
Dim
A
A1
A2
b
D
E
E1
e
e1
L
L1
L2
N
α
L2
L
M illimeters
M in .
0.95
0.05
0.90
0.30
2.8
2.6
1.5
Inches
M ax.
1.45
0.15
1.30
0.50
3.00
3.00
1.70
M in.
0.037
0.002
0.035
0.011
0.110
0.102
0.059
0.55
0.014
0.7
0.020
0.20 BSC
0.5
Copyright  ANPEC Electronics Corp.
Rev. A.2 - Oct., 2003
0.022
0.008 BSC
5
0°
M ax.
0.057
0.006
0.051
0.019
0.118
0.118
0.067
0.037BSC
0.074BSC
0.95BSC
1.90BSC
0.35
L1
0.028
5
10°
11
0°
10°
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APR3021/2/3
Packaging Information
SOT-89 (Reference EIAJ ED-7500A Reg stration SC-62)
D
D1
a
E
H
1
2
3
L
C
B1
B
e
e1
A
a
D im
A
B
B1
C
D
D1
e
e1
E
H
L
α
M illim eters
M in.
1.40
0.40
0.35
0.35
4.40
1.35
Inches
M ax.
1.60
0.56
0.48
0.44
4.60
1.83
M in.
0.055
0.016
0.014
0.014
0.173
0.053
1.50 B SC
3.00 B SC
2.29
3.75
0.80
Copyright  ANPEC Electronics Corp.
Rev. A.2 - Oct., 2003
M ax.
0.063
0.022
0.019
0.017
0.181
0.072
0.059 BSC
0.118 B SC
2.60
4.25
1.20
10°
12
0.090
0.148
0.031
0.102
0.167
0.047
10°
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APR3021/2/3
Physical Specifications
Terminal Material
Lead Solderability
Solder-Plated Copper (Solder Material : 90/10 or 63/37 SnPb), 100%Sn
Meets EIA Specification RSI86-91, ANSI/J-STD-002 Category 3.
Reflow Condition
(IR/Convection or VPR Reflow)
tp
TP
Critical Zone
T L to T P
Temperature
Ram p-up
TL
tL
Tsm ax
Tsm in
Ram p-down
ts
Preheat
25
t 25 °C to Peak
Tim e
Classificatin Reflow Profiles
Profile Feature
Sn-Pb Eutectic Assembly
Large Body
Small Body
Average ramp-up rate
3°C/second max.
(TL to TP)
Preheat
- Temperature Min (Tsmin)
100°C
- Temperature Mix (Tsmax)
150°C
- Time (min to max)(ts)
60-120 seconds
Tsmax to TL
- Ramp-up Rate
Tsmax to TL
- Temperature(TL)
183°C
- Time (tL)
60-150 seconds
Peak Temperature(Tp)
225 +0/-5°C
240 +0/-5°C
Time within 5°C of actual Peak
10-30 seconds
10-30 seconds
Temperature(tp)
Ramp-down Rate
6°C/second max.
6 minutes max.
Time 25°C to Peak Temperature
Pb-Free Assembly
Large Body
Small Body
3°C/second max.
150°C
200°C
60-180 seconds
3°C/second max
217°C
60-150 seconds
245 +0/-5°C
250 +0/-5°C
10-30 seconds
20-40 seconds
6°C/second max.
8 minutes max.
Note: All temperatures refer to topside of the package. Measured on the body surface.
Copyright  ANPEC Electronics Corp.
Rev. A.2 - Oct., 2003
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APR3021/2/3
Reliability test program
Test item
SOLDERABILITY
HOLT
PCT
TST
ESD
Latch-Up
Method
MIL-STD-883D-2003
MIL-STD-883D-1005.7
JESD-22-B,A102
MIL-STD-883D-1011.9
MIL-STD-883D-3015.7
JESD 78
Description
245°C, 5 SEC
1000 Hrs Bias @125°C
168 Hrs, 100%RH, 121°C
-65°C~150°C, 200 Cycles
VHBM > 2KV, VMM > 200V
10ms, 1tr > 100mA
Carrier Tape & Reel Dimensions
t
D
P
Po
E
P1
Bo
F
W
Ao
D1
Ko
T2
J
C
A
B
T1
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Rev. A.2 - Oct., 2003
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APR3021/2/3
Carrier Tape & Reel Dimensions
A p p lic a tio n
S O T -2 3
A p p lic a tio n
S O T -2 3 -5
A p p lic a tio n
S O T -8 9
A
B
C
J
T1
T2
P
E
1 .4
W
8 .0 + 0 .3
- 0 .3
178±1
6 0 ± 1 .0
1 2 .0
2 .5 ± 0 .1 5
9 .0 ± 0 .5
F
D
D1
Po
P1
4 .0
1 .7 5
Ao
Bo
Ko
t
3 .5 ± 0 .0 5
1 .5 + 0 .1
φ 0 .1 M IN
4 .0
A
B
C
J
2 .0 ± 0 .0 5
3 .1
3 .0
1 .3
0 .2 ± 0 .0 3
T1
T2
W
P
178 ±1
7 2 ± 1 .0
1 3 .0 + 0 .2
2 .5 ± 0 .1 5
E
8 .4 ± 2
1 .5 ± 0 .3
8 .0 ± 0 .3
4 ± 0 .1
1 .7 5 ± 0 .1
F
D
D1
Po
P1
Ao
Bo
Ko
t
3 .5 ± 0 .0 5
1 .5 ± 0 .1
1 .5 ± 0 .1
4 .0 ± 0 .1
2 .0 ± 0 .1
3 .1 5 ± 0 .1
3 .2 ± 0 .1
1 .4 ± 0 .1
0 .2 ± 0 .0 3 3
W
1 2 + 0 .3
1 2 - 0 .1
P
E
8 ± 0 .1
1 .7 5 ± 0 .1
A
B
C
J
T1
T2
178 ±1
70 ± 2
1 3 .5 ± 0 .1 5
3 ± 0 .1 5
14 ± 2
1 .3 ± 0 .3
F
D
D1
Po
P1
Ao
Bo
Ko
t
5 .5 ± 0 .0 5
1 .5 ± 0 .1
1 .5 ± 0 .1
4 .0 ± 0 .1
2 .0 ± 0 .1
4 .8 ± 0 .1
4 .5 ± 0 .1
1 .8 0 ± 0 .1
0 .3 ± 0 .0 1 3
(mm)
Cover Tape Dimensions
Application
SOT- 23
SOT- 23-5
SOT- 89
Carrier Width
8
8
12
Cover Tape Width
5.3
5.3
9.3
Devices Per Reel
3000
3000
1000
Customer Service
Anpec Electronics Corp.
Head Office :
5F, No. 2 Li-Hsin Road, SBIP,
Hsin-Chu, Taiwan, R.O.C.
Tel : 886-3-5642000
Fax : 886-3-5642050
Taipei Branch :
7F, No. 137, Lane 235, Pac Chiao Rd.,
Hsin Tien City, Taipei Hsien, Taiwan, R. O. C.
Tel : 886-2-89191368
Fax : 886-2-89191369
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Rev. A.2 - Oct., 2003
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