Datasheet APR3101, APR3102, APR3103 Datasheet (ANPEC)

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APR3101/2/3

MicroPower Microprocessor Reset Circuit with Manual Reset

Features General Description

••

• 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.

••

• Manual Reset Input

••

••

• Reset Timeout Period 250ms

••

••

• Available output configurations

••

- Open-drain output

- CMOS active high output

- CMOS active low output

••

• SOT-23-5 package

••

••

• No external components

••

The APR3101/2/3 are designed to monitor voltage
supplies in µP and digital systems. The quiescent
current is extremely low, typically 1.5 µA, making it
ideal for portable battery operated equipment. The
APR3101/2/3 operate by monitoring the system power
supply voltage. When the input voltage drops below a
fixed threshold or whenever manual reset is asserted,
the device asserts a reset signal for a fixed time pe­riod after Vcc rises above the fixed threshold or manual
reset is deasserted. The APR3101/2/3 series is avail­able with three output stage versions:APR3101 push­pull active low output, APR3102 push-pull active high

Applications

• Computers

• Cell Phones

• Portable Electronics

• µP Power Supply Monitoring

output and APR3103 open drain active low output. The
APR3101/2/3 also have a debounced manual reset
input that is provided to override the reset monitor.
They are also designed to reject fast line transient
glitches on Vcc. The APR3101/2/3 are come in a
miniature SOT-23-5 package.

Pin Configuration

MRV

CC

45

123

NCGND

SOT-23-5 (T op View)

Reset
Reset

(3101/3)
(3102)

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.3 - Feb., 2004

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APR3101/2/3

Ordering and Marking Information

APR3101/2/3 -

APR3101/2/3 B :

A1/2/3

X X

Date Code

Voltage Code

Lead Free Code
Handling Code
Temp. Range
Package 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

Package Code
B : SOT-23-5
Temp. Range

I : -40 to 85 C

Handling Code

TR : Tape & Reel

Voltage Code :

15 : 1.5V ~ 50 : 5.0V
Lead Free Code
L : Lead Free Device Blank : Original Device

°

Absolute Maximum Ratings

Symbol Parameter Value Unit

VCC V

V

RESET

ICC, IMR Maximum Continuous Input Current 20 mA

I

RESET/RESET Current 20 mA

RESET

dVcc/dt Rate of Rise of VCC 100

TJ Junction Temperature Range -40 to 150 °C
TL Lead Temperature (Soldering, 10 second) 260 °C

R

Thermal Resistance – Junction to Ambient 357 °C/W

TH,JA

PD Power Dissipation Internally Limited W

TSTG Storage Temperature Range -65 to +150

to GND -0.3 to 6 V

CC

RESET to GND (Push-Pull Output) -0.3 to VCC +0.3
RESET to GND (Open Drain Output) -0.3 to 6

V

V/µs

°

C

Pin Function Descrpition

PIN

No. Name

1 GND Ground connection
2 NC No internal connection

(APR3101/3)

3

RESET

RESET

(APR3102)

RESET output remains low while VCC is below the reset threshold and remains
so for a fixed time period after V

RESET output remains high while V
so for a fixed time period after V

Manual Reset active low input. A logic low signal on MR asserts a reset

4 MR

condition. Asserted r eset continues as long as MR is low and for a fixed tim e
period after MR returns high.

5 VCC 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.3 - Feb., 2004

Description

CC

raises above the reset threshold.

CC

is below the reset threshold and remains

CC

raises above the reset threshold.

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APR3101/2/3

Block Diagram

c c

V

MR

Reset

Generator

+ Timer

Oscillator

REF

V

RESET

GND

APR3101

MR

c c

V

Reset

GND

Generator

+ Timer

Oscillator

V

REF

APR3102

RESET

MR

c c

V

RESET

Copyright  ANPEC Electronics Corp.
Rev. A.3 - Feb., 2004

GND

Reset

Generator

+ Timer

Oscillator

V

REF

APR3103

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APR3101/2/3

Part Number Description

Part Number Part Description

APR3101 Reset Output Push Pull Active Low with Delay
APR3102 Reset Output Push Pull Active High with Delay
APR3103 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 Test Conditions

VCC

V

T

VOH

T

T

V
V

RMR

Supply Voltage

ICC

Supply Current V
T

VTH

Reset Threshold
Hysteresis Range 20 mV

HYST

Reset Timeout Period

RTP

VOL

Reset Output Low I
Reset Output High I

TD

V

to Reset Delay VCC=VTH to (VTH-100mV) 25

CC

ILE

Reset Output Leakage 0.5
MR Minimum Pulse Width 10

MPW

MR to Reset Delay 0.5

MRD

MR Input Low Threshold 0.4* V

MIL

MR Input High Threshold 0.5* V

MIH

MR Pull-Up resistance

=1.5V~6V 1.5 4

CC

=-40 to 85°C 3 5

A

T A=25°C ±1.5%
T

=-40 to 85°C ±2%

A

150 250 350

=1.2mA 0.5 V

SINK

=0.6mA 0.8*VCC

SOURCE

APR3101/2/3

Min. Typ. Max.

1.2 6

V

CC

CC

30 47 70

Unit

V

µ

A

ms

µ

S

µ

A

µ

S

µ

S

KΩ

Application Circuit

CC

V

CC

V

APR3103 RESET

GND

Copyright  ANPEC Electronics Corp.
Rev. A.3 - Feb., 2004

100k

RESET
INPUT

V

µ

GND

CC

V

CC

P

APR3101
APR3102

CC

V

GND

RESET
(RESET)

CC

V

RESET

P

µ

INPUT

GND

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APR3101/2/3

Timing Chart

Vcc

(APR3102)

RESE T

Reset Threshold Reset Threshold

(APR3101/ 3)

RESE T

MR

Reset Timeout P eriod 250ms

MR to Reset Delay 0.5us

Vc c t o Res et Delay 25us

Reset Timeout P eriod 250ms

Copyright  ANPEC Electronics Corp.
Rev. A.3 - Feb., 2004

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APR3101/2/3

Typical Characteristics

Supply Current vs. Supply Voltage

2

Maximum Transient Duration vs.

Reset Threshold Overdrive VTH - VCC

120

1.6

1.2

0.8

0.4

Supply Current (uA)

0

0123456

Supply Voltage (V)

Output Source Current vs. Reset High Output Voltage

70

Vcc=5 V

60

50

Vcc=4 V

40

30

Vcc=3 V

20

10

Output Source Current (mA)

0

0123456

Reset High Output Voltage (V)

100

80

60

40

20

never generate a reset signal

Maximum Transient Duration (us)

0

10 100 1000

generate a reset signal

Reset Threshold Overdrive VTH - VCC (mV)

Output Sink Current vs. Reset Low Output Voltage

50
45
40
35
30
25
20
15
10

5

Output Sink Current (mA)

0

0123456

Vcc=1.5

Vcc=2.9V

Vcc=2.5V

Vcc=2V

Reset Low Output Voltage (V)

Copyright  ANPEC Electronics Corp.
Rev. A.3 - Feb., 2004

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APR3101/2/3

Typical Characteristics

Normalized Reset Threshold vs. T emperature

1.008

1.006

1.004

1.002

1

0.998

0.996

Normalized Reset Threshold (%)

0.994

-40 -20 0 20 40 60 80 100 120

Temperature (°C)

600

Reset Propagation Delay vs. T emperature

60

50

40

VOD=100mV

30

20

10

Reset Propagation Delay (us)

0

-40 -20 0 20 40 60 80 100 120

Temperature (°C)

Supply Current vs. T emperature Reset Timeout Period vs. Temperature

3.5

500

400

300

200

100

Reset Timeout Period (ms)

0

-40-200 20406080100120

T emperature (°C)

Copyright  ANPEC Electronics Corp.
Rev. A.3 - Feb., 2004

3

2.5

2

1.5

1

Supply Current (uA)

0.5

0

-40-200 20406080100120

Vcc=5V

Vcc=3V

T emperature (°C)

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APR3101/2/3

Typical Characteristics

Power Up

Vcc(2V/div)

RESET(2V/div)

MR(2V/div)

Vcc(2V/div)

RESET(2V/div)

MR(2V/div)

Power Down

Time (50ms/div) Time (500ms/div)

MR to Reset Delay

Vcc to RESET Delay

Time (0.2us/div)

Copyright  ANPEC Electronics Corp.
Rev. A.3 - Feb., 2004

Vcc(2V/div)

RESET(2V/div)

MR(2V/div)

Vcc(0.5V/div)
Vcc=VTH to (VTH-100mV)

RESET(2V/div)

Time (10us/div)

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APR3101/2/3

Typical Characteristics

Manual Reset

Vcc(2V/div)

RESET(2V/div)

MR(2V/div)

Time (100ms/div)

Copyright  ANPEC Electronics Corp.
Rev. A.3 - Feb., 2004

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APR3101/2/3

Application Information

VCC Transient Rejection

The APR3101/2/3 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 35us, it
will generate a reset signal. Connect a 0.1uF bypass
capacitor to the VCC pin can improve the transient
immunity.

Manual Reset Input

Force the MR low asserts the reset signal, asserted
reset continues as long as MR is low and after the
MR goes high the reset signal is maintained for a fixed
timeout period. The MR is internally connected a 47kΩ
resistor to VCC, so it can be floating if MR is not used.
The MR input also has a debounce time 500ns to avoid
the glitches. It allows use of a mechanical switch or a
TTL, and CMOS logic signal.

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 APR3102, a pull-up resis­tor to VCC is required to keep the valid reset output for
VCC below 1.2V.

¡@¡@

¡@

¡@¡@

V

CC

V

CC

RESET

GND

100K

Figure 1. Ensuring RESET Valid to VCC = 0 V

+3.3V +5.0V

Reset Output

The APR3101/2/3 have 3 output stage versions:
APR3101 is an active low push-pull output,when the
VCC drops below the reset threshold or MR goes low,
the RESET output generates a low signal. APR3102
is an active high push-pull output, when the VCC drops
below the reset threshold or MR goes low; the RE­SET output generates a high signal (see Timing Chart).
APR3103 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 APR3101
RESET output is valid until the VCC=1.2V, below 1.2V

Copyright  ANPEC Electronics Corp.
Rev. A.3 - Feb., 2004

APR3103

MR

V

RESET

GND

CC

100k

VCC

RESET

INP U T5VSystem

GND

Figure 2. APR3103 Open Drain Output with Multiple
Supplies

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APR3101/2/3

Packaging Information

SOT-23-5

e1

45

12

3

E1 E

e

D

Dim

Min. Max. Min. Max.

A 0.95 1.45
A1 0.05 0.15
A2 0.90 1.30

b 0.30 0.50

D 2.8 3.00

E 2.6 3.00
E1 1.5 1.70

e 0.95BSC
e1 1.90BSC

L 0.35 0.55

b

A2

A

A1 L 2

L

L 1

a

Millimeters Inches

0.037 0.057

0.002 0.006

0.035 0.051

0.011 0.019

0.110 0.118

0.102 0.118

0.059 0.067

0.037BSC

0.074BSC

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.3 - Feb., 2004

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APR3101/2/3

Physical Specifications

Ter minal Material Solder-Plated Copper (Solde r Ma terial : 90/10 or 63/3 7 SnP b) , 100 %Sn
Lead Solderability Meets EIA Spe c ification RSI86-91, ANSI/J-ST D-002 Category 3.

Reflow Condition (IR/Convection or VPR Reflow)

T

P

Ramp-up

T

L

Tsmax

Tsmin

Temp erature

ts

Preheat

25

°

t 25 C to Pe a k

Classificatin Reflow Profiles

tp

Ramp-down

Time

Critical Zone

to T

T

L

P

t

L

Profile Feature Sn-Pb Eutectic Assembly Pb-Free Assembly

Large Body Small Body Large Body Small Body
Average ramp-up rate
(T

to TP)

L

Preheat

- Temperature Min (Tsmin)

- Temperature Mix (Tsmax)

- Time (min to max)(ts)

Tsmax to TL

- Temperature(T

- Time (t

)

L

)

L

Peak Temperature(Tp)

Time within 5°C of actual Peak
Temperature(tp)

225 +0/-5°C 240 +0/-5°C 245 +0/-5°C 250 +0/-5°C

3°C/second max. 3°C/second max.

100°C
150°C

60-120 seconds

150°C
200°C

60-180 seconds

3°C/second max

183°C

60-150 seconds

217°C

60-150 seconds

Ramp-down Rate 10-30 seconds 10-30 seconds 10-30 seconds 20-40 seconds
Time 25°C to Peak Temperature 6°C/second max. 6°C/second max.
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.3 - Feb., 2004

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APR3101/2/3

Relia b ility te st progra m

SOLDERA BILITY MIL-STD-883D-2003
HO LT MIL-STD-883D-1005.7
PCT JESD-22-B, A102
TST MIL-STD-883D -1011.9

245°C , 5 SEC
1000 Hrs Bias @ 125 °C
168 Hrs, 100 % RH , 121°C

-65°C ~ 150°C, 200 Cycles
ESD M IL-STD-883D-3015.7 VHBM > 2KV, VMM > 200V
La tc h -Up JES D 78 10 ms , Itr > 100mA

Carrier Tape

t

Test item Method D escriptio n

E

F

W

Po

P

P1

Ao

D

Bo

Ko

D1

A

Application

A B C J T1 T2 W P E

178±172 ± 1.0 13.0 + 0.2 2.5 ± 0.15 8.4 ± 2 1.5± 0.3

SOT-23-5

F D D1 Po P1 Ao Bo Ko t

3.5 ± 0.05 1.5 +0.1 1.5 +0.1 4.0 ± 0.1 2.0 ± 0.1 3.15 ± 0.1 3.2± 0.1 1.4± 0.1 0.2±0.03

Copyright  ANPEC Electronics Corp.
Rev. A.3 - Feb., 2004

T2

J

C

B

T1

8.0+ 0.3

- 0.3

4 ± 0.1 1.75± 0.1

(mm)

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APR3101/2/3

Cover Tape Dimensions

Application Carrier Width Cover Tape Width Devices Per Reel

SOT- 23

Customer Service

Anpec Electronics Corp.

Head Office :

5F, No. 2 Li-Hsin Road, SBIP,
Hsin-Chu, T aiwan, R.O.C.
T el : 886-3-5642000
Fax : [phone]

Taipei Branch :

7F, No. 137, Lane 235, Pac Chiao Rd.,
Hsin Tien City, Taipei Hsien, Taiwan, R. O. C.
T el : 886-2-89191368
Fax : [phone]

8 5.3 3000

Copyright  ANPEC Electronics Corp.
Rev. A.3 - Feb., 2004

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