MITSUMI PST3853

IC for CMOS System Reset PST38XXU
MITSUMI
IC for CMOS System Reset
Monolithic IC PST38XXU Series
April 16, 2001
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 VDD = (-VDET) + 2.0V) PST3810 ~ PST3819
±2%
0.7 ~ 10V
-30 ~ +85°C
0.9 ~ 6.0V (0.1V step)
Package
SC-82ABA, SC-82ABB
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
1
3
2
SC-82ABA
SC-82ABB
(TOP VIEW)
1
2
3
4
OUT
VDD
NC
GND
IC for CMOS System Reset PST38XXU
MITSUMI
Block Diagram
VDD 2
1 OUT
VREF
GND 4
Pin Explanations
Pin No.
Pin Name
Function
1
OUT
Reset Signal Output Pin
2
VDD
VDDPin/Voltage Detect Pin
3
NC
4
GND
Absolute Maximum Ratings
GND Pin
(Ta=25°C)
Item
Symbol
Rating
Unit
Operating Temperature
TOPT
-30~+85
°C
Storage Temperature
TSTG
-40~+125
°C
Supply Voltage
VDD max.
12
V
Output Voltage
VOUT
VSS-0.3~12
V
Output Current
IOUT
70
mA
Power Dissipation
PD
150
mW
Recommended Operating Conditions
Item
Symbol
Rating
Unit
Operating Temperature
TOPT
-30~+85
°C
Supply Voltage
VDD
+0.70~+10
V
IC for CMOS System Reset PST38XXU
MITSUMI
Electrical Characteristics
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
Detecting Voltage
-VDET(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)
Hysteresis Voltage
VHYS(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
Item
Supply Current1
ISS1(µA)
Test Circuit 1
Condition
Typ. Max.
1.5
3.7
1.8
4.5
2.0
5.0
2.5
5.5
3.0
6.0
Supply Current2
ISS2(µA)
Test Circuit 1
Condition
Typ. Max.
0.9
2.7
1.0
3.0
1.1
3.3
1.2
3.6
1.3
3.9
1.4
4.2
VDD=
(-VDET)
-0.10V
3.5
7.0
4.0
8.0
VDD=
(-VDET)
-0.13V
VDD=
(-VDET)
+2.0V
4.5
9.0
5.0
10.0
VDD=
(-VDET)
-0.16V
5.5
11.0
6.0
12.0
VDD=
(-VDET)
-0.20V
6.5
13.0
IC for CMOS System Reset PST38XXU
MITSUMI
Electrical Characteristics
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
(Unless otherwise specified, Ta=25°C)
Output Current1
IOUT1(mA)
Test Circuit 3
Condition Min. Typ.
Item
Output Current2
IOUT2(mA)
Test Circuit 3
Condition
Min. Typ.
VDD=0.85V
0.05
0.5
VDD=1.0V
0.2
1.0
Leak Current
ILEAK(µA)
Test Circuit 3
Condition Typ. Max.
N-ch
VDS=
0.05V
VDD=
0.7V
VDD=
10V
N-ch
0.01
0.05
VDS=
0.5V
VDD=1.5V
1.0
2.0
VDS=
10V
-
0.1
IC for CMOS System Reset PST38XXU
MITSUMI
Electrical Characteristics
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
(Unless otherwise specified, Ta=25°C)
Threshold Operating Voltage1
VDDL1(V)
Test Circuit 2
Condition
Typ. Max.
VOUT <
=0.1V
TOPT =25°C
0.55
0.70
Item
Threshold Operating Voltage2 Detecting Voltage Temp. Coefficient
VDDL2(V)
-VDET/ TOPT (ppm/°C)
Test Circuit 2
Test Circuit 2
Condition
Typ. Max.
Condition
Typ.
VOUT <=0.1V
-30°C <=
TOPT
<=85°C
0.65
0.80
-30°C <=
TOPT
<=85°C
±100
IC for CMOS System Reset PST38XXU
MITSUMI
Measuring Circuit
(1)
(2)
ISS
+5V or VDD
VDD
2
VDD
2
VIN
VIN
PST
38XX
1
PST
38XX
470kΩ
1
OUT
4
4
GND
GND
(3)
(4)
VDD
2
VIN
PST
38XX
VDD
2
IOUT
VIN
1
OUT
4
VDS
GND
PST
38XX
ILEAK
1
OUT
4
VDS
GND
IC for CMOS System Reset PST38XXU
MITSUMI
Application Circuits
VDD
RL
VDD
2
VIN
PST
38XX
1
RESET
Logic
System
OUT
4
GND
Please be advised that Mitsumi Electric Co., Ltd. is not liable for any accidents or damage caused as a result
of the use of 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.
VIN
VDD
2
PST
38XX
4
1
OUT
GND
Please note that there is any possibility of circuit oscillation when resistance put in the line VIN.
Timing Chart
V
VHYS
-VDET
VDD
V
OUT
+VDET
IC for CMOS System Reset PST38XXU
MITSUMI
Characteristics
PST3809 (-VDET=0.9V)
Supply Current vs input voltage
2
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
Supply Current (µA)
Output Voltage (V)
Detecting voltage vs input voltage
1.5
1
0.5
0
0
0.2
0.4
0.6
0.8
0
1
2
Input Voltage (V)
0.95
0.90
0.85
20
40
60
70
60
50
40
30
20
10
0
-40 -20
80 100
0
20
40
60
80 100
Temperature (°C)
Output current 1 vs temperature
Output current 2 vs temperature
0.20
1.0
Output Current 2 (mA)
Output Current 1 (mA)
10
80
Temperature (°C)
0.15
0.10
0.05
0.00
-40 -20
8
Hysteresis voltage vs temperature
Hysteresis Voltage (mV)
Detecting Voltage (V)
1.00
0
6
Input Voltage (V)
Detecting voltage vs temperature
0.80
-40 -20
4
0
20
40
60
80 100
0.8
0.6
0.4
0.2
0.0
-40 -20
Temperature (°C)
Note: These are typical characteristics.
0
20
40
60
Temperature (°C)
80 100
IC for CMOS System Reset PST38XXU
MITSUMI
Characteristics
PST3828 (-VDET=2.8V)
Detecting voltage vs input voltage
Supply current vs input voltage
3
Supply Current (µA)
Output Voltage (V)
3.0
2.5
2.0
1.5
1.0
0.5
2.5
2
1.5
1
0.5
0
0.0
0
0.5
1
1.5
2
2.5
0
3
2
Detecting voltage vs temperature
2.90
2.80
2.70
20
40
60
180
160
140
120
100
80
-40 -20
80 100
0
20
40
60
80 100
Temperature (°C)
Output current 1 vs temperature
Output current 2 vs temperature
8.0
Output Current 2 (mA)
0.20
Output Current 1 (mA)
10
200
Temperature (°C)
0.15
0.10
0.05
0.00
-40 -20
8
Hysteresis voltage vs temperature
Hysteresis Voltage (mV)
Detecting Voltage (V)
3.00
0
6
Input Voltage (V)
Input Voltage (V)
2.60
-40 -20
4
0
20
40
60
80 100
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0.0
-40 -20
Temperature (°C)
Note: These are typical characteristics.
0
20
40
60
Temperature (°C)
80 100
IC for CMOS System Reset PST38XXU
MITSUMI
Characteristics
PST3846 (-VDET=4.6V)
Supply current vs input voltage
4.0
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
Supply Current (µA)
Output Voltage (V)
Detecting voltage vs input voltage
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0
2
1
4
3
0
5
2
Input Voltage (V)
4.8
4.6
4.4
20
40
60
280
260
240
220
200
180
160
-40 -20
80 100
0
20
40
60
80 100
Temperature (°C)
Output current 1 vs temperature
Output current 2 vs temperature
8.0
Output Current 2 (mA)
0.20
Output Current 1 (mA)
10
300
Temperature (°C)
0.15
0.10
0.05
0.00
-40 -20
8
Hysteresis voltage vs temperature
Hysteresis Voltage (mV)
Detecting Voltage (V)
5.0
0
6
Input Voltage (V)
Detecting voltage vs temperature
4.2
-40 -20
4
0
20
40
60
80 100
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0.0
-40 -20
Temperature (°C)
Note: These are typical characteristics.
0
20
40
60
Temperature (°C)
80 100