MITSUMI PST3712

IC for CMOS System Reset PST37XXU
MITSUMI
IC for CMOS System Reset
Monolithic IC PST37XXU Series
July 13, 2001
Outline
This CMOS output type system reset IC, developed using the CMOS. Super low consumption current of
1.0µA typ. (PST3709 ~ PST3719) 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) PST3709 ~ PST3719
±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 PST37XXU
MITSUMI
Block Diagram
VDD 2
+
1 OUT
VREF
GND 4
Pin Explanations
Pin No.
1
2
3
4
Pin Name
OUT
VDD
NC
GND
Functions
Reset Signal Output Pin
VDD Pin / Voltage Detect Pin
GND Pin
Absolute Maximum Ratings (Ta=25˚C)
Item
Symbol
Rating
Unit
Operating Temperature
TOPR
-30 ~ +85
°C
Storage Temperature
TSTG
-40 ~ +125
°C
Supply Voltage
VDD
12
V
Output Voltage
VOUT
VSS - 0.3 ~ VDD +0.3
V
Output Current
IOUT
70
mA
Power Dissipation
PD
150
mW
Item
Symbol
Rating
Unit
Operating Temperature
TOPR
-30 ~ +85
°C
Supply Voltage
VDD
+0.70 ~ +10
V
Recomended Operating Conditions
IC for CMOS System Reset PST37XXU
MITSUMI
Electrical Characteristics
Product
Name
PST3709
PST3710
PST3711
PST3712
PST3713
PST3714
PST3715
PST3716
PST3717
PST3718
PST3719
PST3720
PST3721
PST3722
PST3723
PST3724
PST3725
PST3726
PST3727
PST3728
PST3729
PST3730
PST3731
PST3732
PST3733
PST3734
PST3735
PST3736
PST3737
PST3738
PST3739
PST3740
PST3741
PST3742
PST3743
PST3744
PST3745
PST3746
PST3747
PST3748
PST3749
PST3750
PST3751
PST3752
PST3753
PST3754
PST3755
PST3756
PST3757
PST3758
PST3759
PST3760
(Ta=25˚C)
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
Item
Hysteresis Voltage
Supply Current 1
Supply Current 2
VHYS (V)
ISS1 (µA)
ISS2 (µA)
Test Circuit 2
Test Circuit 1
Test Circuit 1
Min.
Typ. Max. Condition Typ. Max. Condition Typ. Max.
0.027 0.045 0.063
0.9
2.7
1.5
3.7
0.030 0.050 0.070
0.033 0.055 0.077
1.8
4.5
0.036 0.060 0.084
0.039 0.065 0.091
2.0
5.0
0.042 0.070 0.098
1.0
3.0
0.045 0.075 0.105
0.048 0.080 0.112
2.5
5.5
0.051 0.085 0.119
VDD =
0.054 0.090 0.126 (-VDET)
-0.10V
0.057 0.095 0.133
0.060 0.100 0.140
0.063 0.105 0.147
0.066 0.110 0.154
3.0
6.0
0.069 0.115 0.161
0.072 0.120 0.168
1.1
3.3
0.075 0.125 0.175
0.078 0.130 0.182
0.081 0.135 0.189
3.5
7.0
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
4.0
8.0
0.099 0.165 0.231
VDD =
VDD
0.102 0.170 0.238
(-VDET)
1.2
3.6
(-VDET)
0.105 0.175 0.245
-0.13V
+2.0V
0.108 0.180 0.252
0.111 0.185 0.259
4.5
9.0
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
5.0 10.0
VDD =
0.129 0.215 0.301
(-VDET)
0.132 0.220 0.308
-0.16V
1.3
3.9
0.135 0.225 0.315
0.138 0.230 0.322
0.141 0.235 0.329
5.5 11.0
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
6.0 12.0
0.159 0.265 0.371
0.162 0.270 0.378
1.4
4.2
VDD =
0.165 0.275 0.385
(-VDET)
0.168 0.280 0.392
-0.20V
0.171 0.285 0.399
6.5 13.0
0.174 0.290 0.406
0.177 0.295 0.413
0.180 0.300 0.420
IC for CMOS System Reset PST37XXU
MITSUMI
Electrical Characteristics
Product
Name
PST3709
PST3710
PST3711
PST3712
PST3713
PST3714
PST3715
PST3716
PST3717
PST3718
PST3719
PST3720
PST3721
PST3722
PST3723
PST3724
PST3725
PST3726
PST3727
PST3728
PST3729
PST3730
PST3731
PST3732
PST3733
PST3734
PST3735
PST3736
PST3737
PST3738
PST3739
PST3740
PST3741
PST3742
PST3743
PST3744
PST3745
PST3746
PST3747
PST3748
PST3749
PST3750
PST3751
PST3752
PST3753
PST3754
PST3755
PST3756
PST3757
PST3758
PST3759
PST3760
(Ta=25˚C)
Output Current 1
IOUT1 (mA)
Test Circuit 3
Condition Min.
Typ.
Item
Output Current 2
IOUT2 (mA)
Test Circuit 3
Condition
Min.
VDD=
0.05
0.85V
VDD=
1.0V
0.2
Typ.
Output Current 3
IOUT3 (mA)
Test Circuit 4
Condition Typ. Max.
0.5
1.0
P-ch
VDS =
-2.1V
1.0
2.0
1.5
3.0
VDD =
4.5V
N-ch
VDS =
0.05V
VDD =
0.7V
N-ch
0.01
0.05
VDS =
0.5V
VDD =
1.5V
1.0
2.0
P-ch
VDS =
-2.1V
VDD =
8.0V
IC for CMOS System Reset PST37XXU
MITSUMI
Electrical Characteristics
Product
Name
PST3709
PST3710
PST3711
PST3712
PST3713
PST3714
PST3715
PST3716
PST3717
PST3718
PST3719
PST3720
PST3721
PST3722
PST3723
PST3724
PST3725
PST3726
PST3727
PST3728
PST3729
PST3730
PST3731
PST3732
PST3733
PST3734
PST3735
PST3736
PST3737
PST3738
PST3739
PST3740
PST3741
PST3742
PST3743
PST3744
PST3745
PST3746
PST3747
PST3748
PST3749
PST3750
PST3751
PST3752
PST3753
PST3754
PST3755
PST3756
PST3757
PST3758
PST3759
PST3760
Threshold Operating
Voltage1
VDDL1 (V)
Test Circuit 2
Condition
Typ.
Max.
VOUT <= 0.1V
VOUT <= 0.1V
0.55
TOPT = 25°C
Item
Threshold Operating
Voltage2
VDDL2 (V)
Test Circuit 2
Condition
Typ.
Max.
0.70
-30°C <=
TOPT
<= 85°C
0.65
0.80
Detecting Voltage
Temp. Coefficient
-VDET / TOPT (ppm / °C)
Test Circuit 2
Condition
Typ.
-30°C <=
TOPT
<= 85°C
±100
IC for CMOS System Reset PST37XXU
MITSUMI
Measuring Circuit
(1)
(2)
ISS
VDD
VDD
2
2
VIN
PST
37XX
VIN
PST
37XX
1
1
OUT
4
4
GND
GND
(3)
(4)
VDD
VDD
2
VIN
2
PST
37XX
IOUT
VIN
1
4
GND
OUT
VDS
PST
37XX
IOUT
1
OUT
VDD + VDS
4
GND
IC for CMOS System Reset PST37XXU
MITSUMI
Application Circuits
VDD
VDD
2
VIN
PST
37XX
4
1
OUT
RESET
Logic
System
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 therefore.
VIN
VDD
2
PST
37XX
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 PST37XXU
MITSUMI
Characteristics
(Typical Performance Characteristics 0.9V)
Supply Current vs Input Voltage
2.0
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
Supply Current (µA)
Detecting Voltage (V)
Detecting Voltage vs Input Voltage
1.5
1
0.5
0
0.7
0.75
0.8 0.85
0.9
0.95
0
1
2
Detecting Voltage vs Temperature
Hysteresis Voltage (mV)
Detecting Voltage (V)
0.95
0.90
0.85
20
40
60
70
60
50
40
30
20
10
0
-40 -20
80 100
Output Current 3 (mA)
Output Current 1 (mA)
0.15
0.10
0.05
40
60
20
40
60
80 100
Output Current3 (P-ch) vs Temperature (VDD = 4.5V ,VDS = -2.1V)
0.20
20
0
Temperature (°C)
Output Current1 (N-ch) vs Temperature (VDD = 0.7V ,VDS = 0.05V)
0
10
80
Temperature (°C)
0.00
-40 -20
8
Hysteresis Voltage vs Temperature
1.00
0
6
Input Voltage (V)
Input Voltage (V)
0.80
-40 -20
4
80 100
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
-40 -20
Temperature (°C)
note : these are typical characteristics
0
20
40
60
Temperature (°C)
80 100
IC for CMOS System Reset PST37XXU
MITSUMI
Characteristics
(Typical Performance Characteristics 2.8V)
Detecting Voltage vs Input Voltage
Supply Current vs Input Voltage
3
Supply Current (µA)
Detecting Voltage (V)
3.0
2.5
2.0
1.5
1.0
0.5
0.0
2.5
2
1.5
1
0.5
0
1
1.5
2
2.5
3
0
2
Input Voltage (V)
Hysteresis Voltage (mV)
Detecting Voltage (V)
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 Current1 (N-ch) vs Temperature (VDD = 0.7V ,VDS = 0.05V)
Output Current3 (P-ch) vs Temperature (VDD = 4.5V ,VDS = -2.1V)
5.0
Output Current 3 (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
3.00
0
6
Input Voltage (V)
Detecting Voltage vs Temperature
2.60
-40 -20
4
0
20
40
60
80 100
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 PST37XXU
MITSUMI
Characteristics
(Typical Performance Characteristics 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)
Detecting Voltage (V)
Detecting Voltage vs Input Voltage
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
1
2
3
4
0
5
2
Detecting Voltage vs Temperature
Hysteresis Voltage (mV)
Detecting Voltage (V)
4.8
4.6
4.4
0
20
40
60
10
280
260
240
220
200
180
160
-40 -20
80 100
0
20
40
60
80 100
Temperature (°C)
Output Current1 (N-ch) vs Temperature (VDD = 0.7V ,VDS = 0.05V)
Output Current3 (P-ch) vs Temperature (VDD = 4.5V ,VDS = -2.1V)
8.0
Output Current 3 (mA)
0.20
Output Current 1 (mA)
8
300
Temperature (°C)
0.15
0.10
0.05
0.00
-40 -20
6
Hysteresis Voltage vs Temperature
5.0
4.2
-40 -20
4
Input Voltage (V)
Input Voltage (V)
0
20
40
60
Temperature (°C)
80 100
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0.0
-40 -20
0
20
40
60
Temperature (°C)
80 100