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 MITSUMI
IC for CMOS System Reset PST37XXU
IC for CMOS System Reset
Monolithic IC PST37XXU Series
Outline
July 13, 2001
This CMOS output type system reset IC, developed using the CMOS. Super low consumption current of 1.0A 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 1.0A typ. (when VDD = (-VDET) + 2.0V) PST3709 ~ PST3719 2% 0.7 ~ 10V -30 ~ +85C 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
3 1 2 3 4 OUT VDD NC GND
1
2
SC-82ABA SC-82ABB (TOP VIEW)
MITSUMI
IC for CMOS System Reset PST37XXU
Block Diagram
VDD 2 + VREF GND 4 1 OUT
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=25C)
Item Operating Temperature Storage Temperature Supply Voltage Output Voltage Output Current Power Dissipation Symbol TOPR TSTG VDD VOUT IOUT PD Rating -30 ~ +85 -40 ~ +125 12 VSS - 0.3 ~ VDD +0.3 70 150 Unit C C V V mA mW
Recomended Operating Conditions
Item Operating Temperature Supply Voltage Symbol TOPR VDD Rating -30 ~ +85 +0.70 ~ +10 Unit C V
MITSUMI
IC for CMOS System Reset PST37XXU
Electrical Characteristics
(Ta=25C) Item Hysteresis Voltage Supply Current 1 Supply Current 2 VHYS (V) ISS1 (A) ISS2 (A) 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
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
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
MITSUMI
IC for CMOS System Reset PST37XXU
Electrical Characteristics
(Ta=25C) Item Output Current 2 IOUT2 (mA) Test Circuit 3 Condition Min. VDD= 0.05 0.85V VDD= 1.0V 0.2
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
Output Current 1 IOUT1 (mA) Test Circuit 3 Condition Min. Typ.
Typ. 0.5
Output Current 3 IOUT3 (mA) Test Circuit 4 Condition Typ. Max.
1.0
P-ch VDS = -2.1V VDD = 4.5V 1.0 2.0
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 1.5 3.0
MITSUMI
IC for CMOS System Reset PST37XXU
Electrical Characteristics
Threshold Operating Voltage1 VDDL1 (V) Test Circuit 2 Condition Typ. Max. Item Threshold Operating Voltage2 VDDL2 (V) Test Circuit 2 Condition Typ. Max. Detecting Voltage Temp. Coefficient -VDET / TOPT (ppm / C) Test Circuit 2 Condition Typ.
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
VOUT < 0.1V = 0.55 TOPT = 25C 0.70
VOUT < 0.1V = -30C < = TOPT < 85C = 0.65 0.80
-30C < = TOPT < 85C =
100
MITSUMI
IC for CMOS System Reset PST37XXU
Measuring Circuit
(1)
ISS VDD 2 VIN PST 37XX 4 GND VIN 1 2 PST 37XX 4 GND 1 OUT VDD
(2)
(3)
(4)
VDD 2 VIN PST 37XX 4 GND IOUT 1 OUT VDS VIN 2
VDD PST 37XX 4 GND IOUT 1 OUT VDD + VDS
MITSUMI
IC for CMOS System Reset PST37XXU
Application Circuits
VDD
VDD 2 VIN PST 37XX 4 GND 1 OUT RESET Logic System
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 GND Please note that there is any possibility of circuit oscillation when resistance put in the line VIN. 1 OUT
Timing Chart
V VHYS
VDD
-VDET
+VDET
V
OUT
MITSUMI
IC for CMOS System Reset PST37XXU
Characteristics
(Typical Performance Characteristics 0.9V) Supply Current vs Input Voltage
2.0
Detecting Voltage vs Input Voltage
1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 0.7 0.75 0.8 0.85 0.9 0.95 1
Detecting Voltage (V)
Supply Current (A)
1.5 1 0.5 0 0 2 4 6 8 10
Input Voltage (V)
Input Voltage (V)
Detecting Voltage vs Temperature
1.00
Hysteresis Voltage vs Temperature
80 70 60 50 40 30 20 10 0 -40 -20 0 20 40 60 80 100
0.95 0.90 0.85 0.80 -40 -20
0
20
40
60
80 100
Hysteresis Voltage (mV)
Detecting Voltage (V)
Temperature (C)
Temperature (C)
Output Current1 (N-ch) vs Temperature (VDD = 0.7V ,VDS = 0.05V)
0.20
Output Current3 (P-ch) vs Temperature (VDD = 4.5V ,VDS = -2.1V)
5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 -40 -20
Output Current 1 (mA)
0.15 0.10 0.05 0.00 -40 -20
Output Current 3 (mA)
0
20
40
60
80 100
0
20
40
60
80 100
Temperature (C)
Temperature (C)
note : these are typical characteristics
MITSUMI
IC for CMOS System Reset PST37XXU
Characteristics
(Typical Performance Characteristics 2.8V) Supply Current vs Input Voltage
3
Detecting Voltage vs Input Voltage
3.0
Detecting Voltage (V)
2.5 2.0 1.5 1.0 0.5 0.0 1 1.5 2 2.5 3
Supply Current (A)
2.5 2 1.5 1 0.5 0 0 2 4 6 8 10
Input Voltage (V)
Input Voltage (V)
Detecting Voltage vs Temperature
3.00
Hysteresis Voltage vs Temperature
200 180 160 140 120 100 80 -40 -20
2.90 2.80 2.70 2.60 -40 -20
Hysteresis Voltage (mV)
Detecting Voltage (V)
0
20
40
60
80 100
0
20
40
60
80 100
Temperature (C)
Temperature (C)
Output Current1 (N-ch) vs Temperature (VDD = 0.7V ,VDS = 0.05V)
0.20
Output Current3 (P-ch) vs Temperature (VDD = 4.5V ,VDS = -2.1V)
5.0
Output Current 1 (mA)
Output Current 3 (mA)
4.0 3.0 2.0 1.0 0.0 -40 -20
0.15 0.10 0.05 0.00 -40 -20
0
20
40
60
80 100
0
20
40
60
80 100
Temperature (C)
Temperature (C)
note : these are typical characteristics
MITSUMI
IC for CMOS System Reset PST37XXU
Characteristics
(Typical Performance Characteristics 4.6V) Supply Current vs Input Voltage
4.0
Detecting Voltage vs Input Voltage
5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 1 2 3 4 5
Detecting Voltage (V)
Supply Current (A)
3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 0 2 4 6 8 10
Input Voltage (V)
Input Voltage (V)
Detecting Voltage vs Temperature
5.0
Hysteresis Voltage vs Temperature
300 280 260 240 220 200 180 160 -40 -20 0 20 40 60 80 100
4.8 4.6 4.4 4.2 -40 -20
0
20
40
60
80 100
Temperature (C)
Hysteresis Voltage (mV)
Detecting Voltage (V)
Temperature (C)
Output Current1 (N-ch) vs Temperature (VDD = 0.7V ,VDS = 0.05V)
0.20
Output Current3 (P-ch) vs Temperature (VDD = 4.5V ,VDS = -2.1V)
8.0
Output Current 1 (mA)
Output Current 3 (mA)
7.0 6.0 5.0 4.0 3.0 2.0 1.0 0.0 -40 -20 0 20 40 60 80 100
0.15 0.10 0.05 0.00 -40 -20
0
20
40
60
80 100
Temperature (C)
Temperature (C)


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