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Электронный компонент: PST3842

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MITSUMI
CMOS System Reset PST38XXU
CMOS System Reset
Monolithic IC PST38XXU Series
Outline
This open drain output system reset IC, developed using the CMOS process. Super low consumption current
of 1.0A typ. (PST3810 ~ PST3819) has been achieved through use of the CMOS process. Also, detection
voltage is high precision detection of 2%.
Features
(1) Super low consumption current
1.0A typ. (when V
DD
= (-V
DET
) + 2.0V) PST3810 ~ PST3819
(2) High precision detection voltage
2%
(3) Operating range
0.7 ~ 10V
(4) Wide operating temperature range
-30 ~ +85C
(5) Detection voltage
0.9 ~ 6.0V (0.1V step)
Package
SC-82AB
Applications
(1) Microcomputer, CPU, MPU reset circuits
(2) Logic circuit reset circuits
(3) Battery voltage check circuits
(4) Back-up circuit switching circuits
(5) Level detection circuits
Pin Assignment
1
2
4
3
SC-82AB
(TOP VIEW)
1
OUT
2
V
DD
3
NC
4
GND
MITSUMI
CMOS System Reset PST38XXU
Block Diagram
V
DD
2
1
4
GND
V
REF
OUT
Pin No.
Pin Name
Function
1
OUT
Reset Signal Output Pin
2
V
DD
V
DD
Pin/Voltage Detect Pin
3
NC
4
GND
GND Pin
Absolute Maximum Ratings
(Ta=25C)
Recommended Operating Conditions
Item
Symbol
Rating
Unit
Operating Temperature
T
OPT
-30~+85
C
Storage Temperature
T
STG
-40~+125
C
Supply Voltage
V
DD
max.
12
V
Output Voltage
V
OUT
V
SS
-0.3~12
V
Output Current
I
OUT
70
mA
Power Dissipation
P
D
150
mW
Item
Symbol
Rating
Unit
Operating Temperature
T
OPT
-30~+85
C
Supply Voltage
V
DD
+0.70~+10
V
Pin Explanations
MITSUMI
CMOS System Reset PST38XXU
Electrical Characteristics
(Unless otherwise specified, Ta=25C)
Item
Detecting Voltage Hysteresis Voltage
Supply Current1
Supply Current2
-V
DET
(V)
V
HYS
(V)
I
SS
1(A)
I
SS
2(A)
Test Circuit 2
Test Circuit 2
Test Circuit 1
Test Circuit 1
Min. Typ. Max. Min. Typ. Max.
Condition
Typ. Max.
Condition
Typ. Max.
PST3809
0.882 0.900 0.918 0.027 0.045 0.063
1.5
3.7
0.9
2.7
PST3810
0.980 1.000 1.020 0.030 0.050 0.070
PST3811
1.078 1.100 1.122 0.033 0.055 0.077
1.8
4.5
PST3812
1.176 1.200 1.224 0.036 0.060 0.084
PST3813
1.274 1.300 1.326 0.039 0.065 0.091
2.0
5.0
PST3814
1.372 1.400 1.428 0.042 0.070 0.098
1.0
3.0
PST3815
1.470 1.500 1.530 0.045 0.075 0.105
PST3816
1.568 1.600 1.632 0.048 0.080 0.112
PST3817
1.666 1.700 1.734 0.051 0.085 0.119
2.5
5.5
PST3818
1.764 1.800 1.836 0.054 0.090 0.126
PST3819
1.862 1.900 1.938 0.057 0.095 0.133
PST3820
1.960 2.000 2.040 0.060 0.100 0.140
PST3821
2.058 2.100 2.142 0.063 0.105 0.147
PST3822
2.156 2.200 2.244 0.066 0.110 0.154
3.0
6.0
PST3823
2.254 2.300 2.346 0.069 0.115 0.161
PST3824
2.352 2.400 2.448 0.072 0.120 0.168
1.1
3.3
PST3825
2.450 2.500 2.550 0.075 0.125 0.175
PST3826
2.548 2.600 2.652 0.078 0.130 0.182
PST3827
2.646 2.700 2.754 0.081 0.135 0.189
3.5
7.0
PST3828
2.744 2.800 2.856 0.084 0.140 0.196
PST3829
2.842 2.900 2.958 0.087 0.145 0.203
PST3830
2.940 3.000 3.060 0.090 0.150 0.210
PST3831
3.038 3.100 3.162 0.093 0.155 0.217
PST3832
3.136 3.200 3.264 0.096 0.160 0.224
4.0
8.0
PST3833
3.234 3.300 3.366 0.099 0.165 0.231
PST3834
3.332 3.400 3.468 0.102 0.170 0.238
1.2
3.6
PST3835
3.430 3.500 3.570 0.105 0.175 0.245
PST3836
3.528 3.600 3.672 0.108 0.180 0.252
PST3837
3.626 3.700 3.774 0.111 0.185 0.259
4.5
9.0
PST3838
3.724 3.800 3.876 0.114 0.190 0.266
PST3839
3.822 3.900 3.978 0.117 0.195 0.273
PST3840
3.920 4.000 4.080 0.120 0.200 0.280
PST3841
4.018 4.100 4.182 0.123 0.205 0.287
PST3842
4.116 4.200 4.284 0.126 0.210 0.294
5.0
10.0
PST3843
4.214 4.300 4.386 0.129 0.215 0.301
PST3844
4.312 4.400 4.488 0.132 0.220 0.308
1.3
3.9
PST3845
4.410 4.500 4.590 0.135 0.225 0.315
PST3846
4.508 4.600 4.692 0.138 0.230 0.322
PST3847
4.606 4.700 4.794 0.141 0.235 0.329
5.5
11.0
PST3848
4.704 4.800 4.896 0.144 0.240 0.336
PST3849
4.802 4.900 4.998 0.147 0.245 0.343
PST3850
4.900 5.000 5.100 0.150 0.250 0.350
PST3851
4.998 5.100 5.202 0.153 0.255 0.357
PST3852
5.096 5.200 5.304 0.156 0.260 0.364
6.0
12.0
PST3853
5.194 5.300 5.406 0.159 0.265 0.371
PST3854
5.292 5.400 5.508 0.162 0.270 0.378
PST3855
5.390 5.500 5.610 0.165 0.275 0.385
1.4
4.2
PST3856
5.488 5.600 5.712 0.168 0.280 0.392
PST3857
5.586 5.700 5.814 0.171 0.285 0.399
6.5
13.0
PST3858
5.684 5.800 5.916 0.174 0.290 0.406
PST3859
5.782 5.900 6.018 0.177 0.295 0.413
PST3860
5.880 6.000 6.120 0.180 0.300 0.420
V
DD
=
(-V
DET
)
-0.10V
V
DD
=
(-V
DET
)
+2.0V
V
DD
=
(-V
DET
)
-0.13V
V
DD
=
(-V
DET
)
-0.16V
V
DD
=
(-V
DET
)
-0.20V
Product
Name
MITSUMI
CMOS System Reset PST38XXU
Electrical Characteristics
(Unless otherwise specified, Ta=25C)
Item
Output Current1
Output Current2
Leak Current
I
OUT
1(mA)
I
OUT
2(mA)
I
LEAK
(A)
Test Circuit 3
Test Circuit 3
Test Circuit 3
Condition
Min. Typ.
Condition
Min. Typ.
Condition
Typ. Max.
PST3809
PST3810
PST3811
PST3812
PST3813
PST3814
PST3815
PST3816
PST3817
PST3818
PST3819
PST3820
PST3821
PST3822
PST3823
PST3824
PST3825
PST3826
PST3827
PST3828
PST3829
PST3830
PST3831
PST3832
PST3833
PST3834
PST3835
PST3836
PST3837
PST3838
PST3839
PST3840
PST3841
PST3842
PST3843
PST3844
PST3845
PST3846
PST3847
PST3848
PST3849
PST3850
PST3851
PST3852
PST3853
PST3854
PST3855
PST3856
PST3857
PST3858
PST3859
PST3860
Product
Name
N-ch
V
DS
=
0.05V
V
DD
=
0.7V
N-ch
V
DS
=
0.5V
V
DD
=1.5V
0.01
0.05
V
DD
=
10V
V
DS
=
10V
-
0.1
1.0
2.0
V
DD
=0.85V
0.05
0.5
V
DD
=1.0V
0.2
1.0
MITSUMI
CMOS System Reset PST38XXU
Electrical Characteristics
(Unless otherwise specified, Ta=25C)
Item
Threshold Operating Voltage1
Threshold Operating Voltage2
Detecting Voltage Temp. Coefficient
V
DDL
1(V)
V
DDL
2(V)
-V
DET
/ T
OPT
(ppm/C)
Test Circuit 2
Test Circuit 2
Test Circuit 2
Condition
Typ. Max.
Condition
Typ. Max.
Condition
Typ.
PST3809
PST3810
PST3811
PST3812
PST3813
PST3814
PST3815
PST3816
PST3817
PST3818
PST3819
PST3820
PST3821
PST3822
PST3823
PST3824
PST3825
PST3826
PST3827
PST3828
PST3829
PST3830
PST3831
PST3832
PST3833
PST3834
PST3835
PST3836
PST3837
PST3838
PST3839
PST3840
PST3841
PST3842
PST3843
PST3844
PST3845
PST3846
PST3847
PST3848
PST3849
PST3850
PST3851
PST3852
PST3853
PST3854
PST3855
PST3856
PST3857
PST3858
PST3859
PST3860
Product
Name
V
OUT
<
<
=0.1V
T
OPT
=25C
V
OUT
<
=0.1V
-30C <
=
T
OPT
<
=85C
0.55
0.70
-30C <=
T
OPT
<
=85C
100
0.65
0.80
MITSUMI
CMOS System Reset PST38XXU
Measuring Circuit
(1)
V
DD
2
4
1
PST
38XX
I
SS
V
IN
GND
(2)
+5V or V
DD
V
IN
V
DD
PST
38XX
1
2
4
GND
OUT
470k
(3)
OUT
I
OUT
V
DS
1
2
4
PST
38XX
V
DD
GND
V
IN
(4)
OUT
I
LEAK
V
DS
1
2
4
PST
38XX
V
DD
GND
V
IN
MITSUMI
CMOS System Reset PST38XXU
Application Circuits
V
DD
GND
OUT
2
4
1
PST
38XX
R
L
V
DD
RESET
Logic
System
V
IN
Please note that there is any possibility of circuit oscillation when resistance put in the line V
IN
.
We shall not be liable for any trouble or damage caused by using this circuit.
In the event a problem which may affect industrial property or any other rights of us or a third
party is encountered during the use of information described in these circuit, Mitsumi Electric
Co., Ltd. shall not be liable for any such problem, nor grant a license therefor.
V
IN
V
DD
OUT
PST
38XX
4
2
1
GND
Timing Chart
V
V
V
DD
OUT
V
HYS
+V
DET
-V
DET
MITSUMI
CMOS System Reset PST38XXU
Characteristics
PST3809 (-V
DET=
0.9V)
Detecting voltage
0.0
0
0.2
0.4
0.6
0.8
1
Input Voltage (V)
Output Voltage (V)
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
Supply Current
0
0.5
1
1.5
0
2
4
6
8
10
2
Input Voltage (V)
Supply Current (
A)
Detecting voltage vs temperature
0.80
0.85
0.90
0.95
-40 -20
0
20
40
60
80
100
Temperature (
C)
1.00
Detecting Voltage (V)
Hysteresis voltage vs temperature
0
-40 -20
0
20
40
60
80
100
80
70
60
50
40
30
20
10
Temperature (
C)
Hysteresis Voltage (mV)
Output current 1 vs temperature
0.00
0.05
0.10
0.15
-40 -20
0
20
40
60
80
100
0.20
Temperature (
C)
Output Current 1 (mA)
Output current 2 vs temperature
0.0
0.2
0.4
0.6
0.8
-40 -20
0
20
40
60
80
100
Temperature (
C)
Output Current 2 (mA)
1.0
Note: These are typical characteristics.
MITSUMI
CMOS System Reset PST38XXU
Detecting voltage
0.0
0.5
1.0
1.5
2.0
2.5
0
0.5
1
1.5
2
2.5
3
3.0
Input Voltage (V)
Output Voltage (V)
Supply current
0
0.5
1
1.5
2
2.5
0
2
4
6
8
10
3
Input Voltage (V)
Supply Current (
A)
Detecting voltage vs temperature
2.60
-40 -20
0
20
40
60
80
100
3.00
2.90
2.80
2.70
Temperature (
C)
Detecting Voltage (V)
Hysteresis voltage vs temperature
80
-40 -20
0
20
40
60
80
100
200
180
160
140
120
100
Temperature (
C)
Hysteresis Voltage (mV)
Output current 1 vs temperature
0.00
-40 -20
0
20
40
60
80
100
0.20
0.15
0.10
0.05
Temperature (
C)
Output Current 1 (mA)
Output current 2 vs temperature
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
-40 -20
0
20
40
60
80
100
8.0
Temperature (
C)
Output Current 2 (mA)
Note: These are typical characteristics.
Characteristics
PST3828 (-V
DET=
2.8V)
MITSUMI
CMOS System Reset PST38XXU
Detecting voltage
0.0
0
1
2
3
4
5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
Input Voltage (V)
Output Voltage (V)
Supply current
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
0
2
4
6
8
10
4.0
Input Voltage (V)
Supply Current (
A)
Detecting voltage vs temperature
4.2
-40 -20
0
20
40
60
80
100
5.0
4.8
4.6
4.4
Temperature (
C)
Detecting Voltage (V)
Hysteresis voltage vs temperature
160
-40 -20
0
20
40
60
80
100
300
280
260
240
220
200
180
Temperature (
C)
Hysteresis Voltage (mV)
Output current 1 vs temperature
0.00
-40 -20
0
20
40
60
80
100
0.20
0.15
0.10
0.05
Temperature (
C)
Output Current 1 (mA)
Output current 2 vs temperature
0.0
-40 -20
0
20
40
60
80
100
8.0
7.0
6.0
5.0
4.0
3.0
2.0
1.0
Temperature (
C)
Output Current 2 (mA)
Note: These are typical characteristics.
Characteristics
PST3846 (-V
DET=
4.6V)