MITSUMI
CMOS System Reset PST35XX, 36XX
CMOS System Reset
Monolithic IC PST35XX, 36XX Series
Outline
This system reset IC, developed using the CMOS process, has a built-in delay function. Super low
consumption current of 1.0µA typ. 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
= Vs + 1V)
±2%
0.7 ~ 10V
-30 ~ +85°C
0.9 ~ 6.0V (0.1V step)
Package
SOT-25A (PST35XXNR, PST36XXNR)
SC-82AB (PST36XXUR, PST36XXUR)
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
(6) The delay time can be easily set using external components (capacitors).
Pin Assignment
5
4
1
2
3
1
2
3
4
5
OUT
V
DD
GND
NC
Cd
4
3
1
2
3
4
GND
V
DD
Cd
OUT
1
2
SOT-25
(TOP VIEW)
SC-82AB
(TOP VIEW)
MITSUMI
CMOS System Reset PST35XX, 36XX
Equivalent Circuit Diagram
PST35XXUR
(SC-82AB)
PST35XXNR
(SOT-25A)
PST36XXUR
(SC-82AB)
PST36XXNR
(SOT-25A)
MITSUMI
CMOS System Reset PST35XX, 36XX
Recommended Operating Conditions
PST35XX UR/NR
Item
Operating temperature
Power supply voltage
Symbol
T
OPT
V
DD
Rating
-30~+85
+0.70~+10
Units
°
C
V
PST36XX UR/NR
Item
Operating temperature
Power supply voltage
Symbol
T
OPT
V
DD
Rating
-30~+85
+0.70~+10
Units
°
C
V
Absolute Maximum Ratings
PST35XX UR/NR
Item
Storage temperature
Operating temperature
Power supply voltage
Output voltage
Output current
Allowable loss
CD Pin Input Voltage
(Ta=25°C)
Symbol
T
STG
T
OPR
V
DD
max.
V
OUT
I
OUT
Pd
V
CD
Rating
-40~+125
-30~+85
+12
V
SS
+0.3
70
150
V
SS
-0.3~V
DD
+0.3
Unit
°C
°C
V
V
mA
mW
V
PST36XX UR/NR
Item
Storage temperature
Operating temperature
Power supply voltage
Output voltage
Output current
Allowable loss
CD Pin Input Voltage
Symbol
T
STG
T
OPR
V
DD
max.
V
OUT
I
OUT
Pd
V
CD
Rating
-40~+125
-30~+85
+12
V
SS
-0.3~+12
70
150
V
SS
-0.3~V
DD
+0.3
Unit
°C
°C
V
V
mA
mW
V
MITSUMI
CMOS System Reset PST35XX, 36XX
Electrical Characteristics
(1) Detection Voltage Table Ta=25°C
SOT-25A
SC-82AB
CMOS output
N-ch open drain
CMOS output
N-ch open drain
0.900 ± 2%
PST3509NR
PST3609NR
PST3509UR
PST3609UR
1.000 ± 2%
PST3510NR
PST3610NR
PST3510UR
PST3610UR
1.100 ± 2%
PST3511NR
PST3611NR
PST3511UR
PST3611UR
1.200 ± 2%
PST3512NR
PST3612NR
PST3512UR
PST3612UR
1.300 ± 2%
PST3513NR
PST3613NR
PST3513UR
PST3613UR
1.400 ± 2%
PST3514NR
PST3614NR
PST3514UR
PST3614UR
1.500 ± 2%
PST3515NR
PST3615NR
PST3515UR
PST3615UR
1.600 ± 2%
PST3516NR
PST3616NR
PST3516UR
PST3616UR
1.700 ± 2%
PST3517NR
PST3617NR
PST3517UR
PST3617UR
1.800 ± 2%
PST3518NR
PST3618NR
PST3518UR
PST3618UR
PST3519NR
PST3619NR
PST3519UR
PST3619UR
1.900 ± 2%
2.000 ± 2%
PST3520NR
PST3620NR
PST3520UR
PST3620UR
2.100 ± 2%
PST3521NR
PST3621NR
PST3521UR
PST3621UR
2.200 ± 2%
PST3522NR
PST3622NR
PST3522UR
PST3622UR
2.300 ± 2%
PST3523NR
PST3623NR
PST3523UR
PST3623UR
2.400 ± 2%
PST3524NR
PST3624NR
PST3524UR
PST3624UR
2.500 ± 2%
PST3525NR
PST3625NR
PST3525UR
PST3625UR
2.600 ± 2%
PST3526NR
PST3626NR
PST3526UR
PST3626UR
2.700 ± 2%
PST3527NR
PST3627NR
PST3527UR
PST3627UR
2.800 ± 2%
PST3528NR
PST3628NR
PST3528UR
PST3628UR
2.900 ± 2%
PST3529NR
PST3629NR
PST3529UR
PST3629UR
3.000 ± 2%
PST3530NR
PST3630NR
PST3530UR
PST3630UR
3.100 ± 2%
PST3531NR
PST3631NR
PST3531UR
PST3631UR
3.200 ± 2%
PST3532NR
PST3632NR
PST3532UR
PST3632UR
3.300 ± 2%
PST3533NR
PST3633NR
PST3533UR
PST3633UR
3.400 ± 2%
PST3534NR
PST3634NR
PST3534UR
PST3634UR
3.500 ± 2%
PST3535NR
PST3635NR
PST3535UR
PST3635UR
3.600 ± 2%
PST3536NR
PST3636NR
PST3536UR
PST3636UR
3.700 ± 2%
PST3537NR
PST3637NR
PST3537UR
PST3637UR
PST3538NR
PST3638NR
PST3538UR
PST3638UR
3.800 ± 2%
3.900 ± 2%
PST3539NR
PST3639NR
PST3539UR
PST3639UR
4.000 ± 2%
PST3540NR
PST3640NR
PST3540UR
PST3640UR
PST3541NR
PST3641NR
PST3541UR
PST3641UR
4.100 ± 2%
4.200 ± 2%
PST3542NR
PST3642NR
PST3542UR
PST3642UR
PST3543NR
PST3643NR
PST3543UR
PST3643UR
4.300 ± 2%
4.400 ± 2%
PST3544NR
PST3644NR
PST3544UR
PST3644UR
4.500 ± 2%
PST3545NR
PST3645NR
PST3545UR
PST3645UR
PST3546NR
PST3646NR
PST3546UR
PST3646UR
4.600 ± 2%
4.700 ± 2%
PST3547NR
PST3647NR
PST3547UR
PST3647UR
4.800 ± 2%
PST3548NR
PST3648NR
PST3548UR
PST3648UR
4.900 ± 2%
PST3549NR
PST3649NR
PST3549UR
PST3649UR
5.000 ± 2%
PST3550NR
PST3650NR
PST3550UR
PST3650UR
5.100 ± 2%
PST3551NR
PST3651NR
PST3551UR
PST3651UR
5.200 ± 2%
PST3552NR
PST3652NR
PST3552UR
PST3652UR
5.300 ± 2%
PST3553NR
PST3653NR
PST3553UR
PST3653UR
PST3554NR
PST3654NR
PST3554UR
PST3654UR
5.400 ± 2%
5.500 ± 2%
PST3555NR
PST3655NR
PST3555UR
PST3655UR
5.600 ± 2%
PST3556NR
PST3656NR
PST3556UR
PST3656UR
5.700 ± 2%
PST3557NR
PST3657NR
PST3557UR
PST3657UR
5.800 ± 2%
PST3558NR
PST3658NR
PST3558UR
PST3658UR
PST3559NR
PST3659NR
PST3559UR
PST3659UR
5.900 ± 2%
PST3560NR
PST3660NR
PST3560UR
PST3660UR
6.000 ± 2%
Detection voltage measurement conditions: V
DD
= 9V 0V, measurement circuit 1
Detection voltage
MITSUMI
CMOS System Reset PST35XX, 36XX
Electrical Characteristics
(Except where noted otherwise, Ta=25°C)
Item
Hysteresis voltage
Detection voltage
temperature coefficient
Consumption current 1
Consumption current 2
Output voltage 1
Output voltage 2
Output voltage 3
Delay terminal threshold voltage
Delay terminal output current 1
Delay terminal output current 2
Minimum operating voltage 1
Minimum operating voltage 2
Delay circuit resistance
Leak current
Symbol
V
HYS
Vs/ T
I
SS1
I
SS2
I
OUT1
I
OUT2
I
OUT3
V
TCD
I
CD1
I
CD2
V
DDL1
V
DDL2
R
D
I
LEAK
Measurement conditions
-30°C < T
OPT
< 85°C
=
=
V
DD
= (-V
DET
) -0.13V
V
DD
= (-V
DET
) +2.0V
Nch: V
DS
=0.05V, V
DD
=0.7V
V
DD
=1.5V, Nch:V
DS
=0.5V, V
DD
=1.5V
V
DD
=4.5V, Pch: V
DS
=-2.1V
V
DD
= (-V
DET
) 1.1V
V
DS
=0.1V, V
DD
=0.7V
V
DS
=0.5V, V
DD
=1.5V
V
OUT
< 0.1V, T
OPT
=25°C
=
V
OUT
< 0.1V, -30°C < T
OPT
< 85°C
=
=
=
V
DD
=10V, V
CD
=10V, V
DS
=10V
Min. Typ. Max. Unit
Vs 0.03 Vs 0.05 Vs 0.07 V
±0.01
4
8
1.2
3.6
0.01 0.05
1.0
2.0
1.0
2.0
V
DD
0.4 V
DD
0.5 V
DD
0.6
2
30
200 800
0.55 0.70
0.65 0.80
0.5
1.0
2.0
0.1
%/°C
µA
µA
mA
mA
mA
MΩ
µA
Note: Output current is only CMOS output (PST3530NR).
Measuring Circuit
PST35XXNR
(1)
(2)
(3)
(4)