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 1.0µA 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
(2) High precision detection voltage
(3) Operating range
(4) Wide operating temperature range
(5) Detection voltage
1.0µA typ. (when V
DD
= (-V
DET
) + 2.0V) PST3810 ~ PST3819
±2%
0.7 ~ 10V
-30 ~ +85°C
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
4
3
1
2
3
4
OUT
V
DD
NC
GND
1
2
SC-82AB
(TOP VIEW)
MITSUMI
CMOS System Reset PST38XXU
Electrical Characteristics
Detecting Voltage
-V
DET
(V)
Test Circuit 2
Min. Typ. Max.
0.882 0.900 0.918
0.980 1.000 1.020
1.078 1.100 1.122
1.176 1.200 1.224
1.274 1.300 1.326
1.372 1.400 1.428
1.470 1.500 1.530
1.568 1.600 1.632
1.666 1.700 1.734
1.764 1.800 1.836
1.862 1.900 1.938
1.960 2.000 2.040
2.058 2.100 2.142
2.156 2.200 2.244
2.254 2.300 2.346
2.352 2.400 2.448
2.450 2.500 2.550
2.548 2.600 2.652
2.646 2.700 2.754
2.744 2.800 2.856
2.842 2.900 2.958
2.940 3.000 3.060
3.038 3.100 3.162
3.136 3.200 3.264
3.234 3.300 3.366
3.332 3.400 3.468
3.430 3.500 3.570
3.528 3.600 3.672
3.626 3.700 3.774
3.724 3.800 3.876
3.822 3.900 3.978
3.920 4.000 4.080
4.018 4.100 4.182
4.116 4.200 4.284
4.214 4.300 4.386
4.312 4.400 4.488
4.410 4.500 4.590
4.508 4.600 4.692
4.606 4.700 4.794
4.704 4.800 4.896
4.802 4.900 4.998
4.900 5.000 5.100
4.998 5.100 5.202
5.096 5.200 5.304
5.194 5.300 5.406
5.292 5.400 5.508
5.390 5.500 5.610
5.488 5.600 5.712
5.586 5.700 5.814
5.684 5.800 5.916
5.782 5.900 6.018
5.880 6.000 6.120
(Unless otherwise specified, Ta=25°C)
Item
Supply Current1
I
SS
1(µA)
Test Circuit 1
Condition
Typ. Max.
1.5
1.8
2.0
3.7
4.5
5.0
1.0
2.5
V
DD
=
(-V
DET
)
-0.10V
3.0
6.0
1.1
3.5
7.0
3.3
5.5
3.0
Product
Name
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
Hysteresis Voltage
V
HYS
(V)
Test Circuit 2
Min. Typ. Max.
0.027 0.045 0.063
0.030 0.050 0.070
0.033 0.055 0.077
0.036 0.060 0.084
0.039 0.065 0.091
0.042 0.070 0.098
0.045 0.075 0.105
0.048 0.080 0.112
0.051 0.085 0.119
0.054 0.090 0.126
0.057 0.095 0.133
0.060 0.100 0.140
0.063 0.105 0.147
0.066 0.110 0.154
0.069 0.115 0.161
0.072 0.120 0.168
0.075 0.125 0.175
0.078 0.130 0.182
0.081 0.135 0.189
0.084 0.140 0.196
0.087 0.145 0.203
0.090 0.150 0.210
0.093 0.155 0.217
0.096 0.160 0.224
0.099 0.165 0.231
0.102 0.170 0.238
0.105 0.175 0.245
0.108 0.180 0.252
0.111 0.185 0.259
0.114 0.190 0.266
0.117 0.195 0.273
0.120 0.200 0.280
0.123 0.205 0.287
0.126 0.210 0.294
0.129 0.215 0.301
0.132 0.220 0.308
0.135 0.225 0.315
0.138 0.230 0.322
0.141 0.235 0.329
0.144 0.240 0.336
0.147 0.245 0.343
0.150 0.250 0.350
0.153 0.255 0.357
0.156 0.260 0.364
0.159 0.265 0.371
0.162 0.270 0.378
0.165 0.275 0.385
0.168 0.280 0.392
0.171 0.285 0.399
0.174 0.290 0.406
0.177 0.295 0.413
0.180 0.300 0.420
Supply Current2
I
SS
2(µA)
Test Circuit 1
Condition
Typ. Max.
0.9
2.7
4.0
V
DD
=
(-V
DET
)
-0.13V
4.5
8.0
V
DD
=
(-V
DET
)
+2.0V
9.0
1.2
3.6
5.0
V
DD
=
(-V
DET
)
-0.16V
5.5
10.0
1.3
11.0
3.9
6.0
V
DD
=
(-V
DET
)
-0.20V
6.5
12.0
1.4
13.0
4.2
MITSUMI
CMOS System Reset PST38XXU
Electrical Characteristics
(Unless otherwise specified, Ta=25°C)
Item
Output Current2
I
OUT
2(mA)
Test Circuit 3
Condition
Min. Typ.
V
DD
=0.85V
0.05
0.5
Product
Name
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
Output Current1
I
OUT
1(mA)
Test Circuit 3
Condition Min. Typ.
Leak Current
I
LEAK
(µA)
Test Circuit 3
Condition Typ. Max.
V
DD
=1.0V
0.2
1.0
N-ch
V
DS
=
0.05V
V
DD
=
0.7V
N-ch
0.01
0.05
V
DS
=
0.5V
V
DD
=1.5V
1.0
2.0
V
DD
=
10V
V
DS
=
10V
-
0.1
MITSUMI
CMOS System Reset PST38XXU
Electrical Characteristics
(Unless otherwise specified, Ta=25°C)
Item
Threshold Operating Voltage2 Detecting Voltage Temp. Coefficient
V
DDL
2(V)
-V
DET
/ T
OPT
(ppm/°C)
Test Circuit 2
Test Circuit 2
Condition
Typ. Max.
Condition
Typ.
Product
Name
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
Threshold Operating Voltage1
V
DDL
1(V)
Test Circuit 2
Condition
Typ. Max.
V
OUT
<0.1V
=
T
OPT
=25°C
0.55
0.70
V
OUT
<0.1V
=
-30°C <
=
T
OPT
<85°C
=
-30°C <
=
0.65
0.80
T
OPT
<85°C
=
±100
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