Contents
Features ...........................................................1
Applications......................................................1
Pin Assignment ................................................1
Block Diagram..................................................2
Selection Guide................................................3
Advantage over the S-805 Series ....................5
Absolute Maximum Ratings .............................6
Electrical Characteristics..................................7
Test Circuits ...................................................23
Technical Terms ............................................24
Operation .......................................................26
Characteristics ...............................................28
Measuring Circuits .........................................31
Application Circuit Examples..........................32
Notes..............................................................34
Dimensions, Taping .......................................35
DI
SC
ON
TI
NU
ED
PR
OD
UC
T
Output Configurations ......................................4
Rev.2.0
*
S-807 Series will be summarized into S-808 Series.
HIGH-PRECISION VOLTAGE DETECTOR
S-807 Series
n
Features
•
Ultra-low current consumption
1.0
µA
typ. (V
DD
=4.5 V)
•
High-precision detection voltage
±2.4%
•
Wide operating voltage range
1.0 to 15 V
•
Good hysteresis characteristics
5% typ.
•
Wide operating temperature range -30°C to+80°C
•
3 output forms : Nch open-drain, CMOS output active H ,
active L
•
TO-92, SOT-89-3 and SOT-23-5 package
PR
1 OUT
2 V
DD
3 V
SS
n
Pin Assignment
(1) TO-92
1 OUT
2 V
DD
3 V
SS
TI
NU
(2) SOT-89-3
ED
ON
Top view
OD
UC
T
n
Applications
•
•
•
•
•
(3) SOT-23-5
Top view
5
4
1
2
3
The S-807 Series is an adjustment-free high-precision voltage detector
made using the CMOS process. The output voltage is fixed internally,
with an accuracy of
±2.4%.
Two output types are available, Nch open-
drain and CMOS output (active “H” and “L”), both of which have various
product lineups. This series features much lower current consumption
and higher detection voltage accuracy than the S-805 Series. Super-
miniature package is added for the S-807 Series, the S-807XXSX
Series. This small SOT-23-5 style package allows the designer to
shrink the size of his finished product. Electrical specs for the S-
807XXSX Series are the same as the standard S-807 Series. Output
forms of the S-807XXSX Series are Nch open-drain and CMOS active
“L”.
Battery checker
Battery backup for memories
Power failure detector
Reset for microcomputer
Store signal detector for non-
volatile RAM
1 OUT
2 V
DD
3 V
SS
4
NC
NC
SC
DI
1
2
3
5
1 2 3
Bottom view
Figure 1
Seiko Instruments Inc.
1
HIGH-PRECISION VOLTAGE DETECTOR
S-807 Series
n
Block Diagram
(1) Nch open-drain output
V
DD
2
-
+
1
OUT
V
SS
3
(2) CMOS active low output
V
DD
2
-
+
V
SS
3
TI
NU
(3) CMOS active high output
V
DD
2
ED
PR
*
-
OD
UC
T
*
1
OUT
1
+
OUT
ON
V
SS
3
* Parasitic diode
Figure 2
2
DI
Seiko Instruments Inc.
SC
HIGH-PRECISION VOLTAGE DETECTOR
S-807 Series
n
Selection Guide
Table 1
Detection
voltage
range (V)
Hysteresis
width
typ. (V)
TO-92
1.5 V±2.4%
1.6 V±2.4%
1.7 V±2.4%
1.8 V±2.4%
1.9 V±2.4%
2.0 V±2.4%
2.1 V±2.4%
2.2 V±2.4%
2.3 V±2.4%
2.4 V±2.4%
2.5 V±2.4%
2.6 V±2.4%
2.7 V±2.4%
2.8 V±2.4%
2.9 V±2.4%
3.0 V±2.4%
3.1 V±2.4%
3.2 V±2.4%
3.3 V±2.4%
3.4 V±2.4%
3.5 V±2.4%
3.6V±2.4%
3.7V±2.4%
3.8 V±2.4%
3.9 V±2.4%
4.0 V±2.4%
4.1 V±2.4%
4.2 V±2.4%
4.3 V±2.4%
4.4 V±2.4%
4.295
to
4.605
4.5 V±2.4%
4.6 V±2.4%
4.7 V±2.4%
4.8 V±2.4%
4.9 V±2.4%
5.0 V±2.4%
5.1 V±2.4%
5.2 V±2.4%
5.3 V±2.4%
5.5 V±2.4%
6.1 V±2.4%
6.3 V±2.4%
7.7V±2.4%
0.075
0.08
0.085
0.09
0.095
0.1
0.105
0.11
0.115
0.12
0.125
0.13
0.135
0.14
0.145
0.15
0.155
0.16
0.165
0.17
0.175
0.18
0.185
0.19
0.195
0.2
0.205
0.21
0.215
0.22
CMOS output (Low)
CMOS output (High)
Nch open-drain
SOT-89-3*
S-80715AL-AC-X
S-80716AL-AD-X
SOT-23-5*
TO-92
SOT-89-3*
TO-92
SOT-89-3*
S-80715AN-DC-X
SOT-23-5*
S-80716AN S-80716AN-DD-X
S-80717AN S-80717AN-DE-X S-80717SN-DE-X
S-80718AH-BF-T1 S-80718AN S-80718AN-DF-X
S-80719AN S-80719AN-DG-X S-80719SN-DG-X
S-80720AN S-80720AN-DH-X S-80720SN-DH-X
S-80717AL S-80717AL-AE-X
S-80718AL S-80718AL-AF-X S-80718SL-AF-X
S-80719AL S-80719AL-AG-X S-80719SL-AG-X
S-80720AL-AH-X S-80720SL-AH-X
S-80721AL S-80721AL-AJ-X
S-80722AL S-80722AL-AK-X
S-80723AL S-80723AL-AL-X S-80723SL-AL-X
S-80724AL S-80724AL-AM-X
S-80725AL S-80725AL-AN-X S-80725SL-AN-X
S-80726AL-AP-X
S-80727AL S-80727AL-AQ-X S-80727SL-AQ-X
S-80728AL-AR-X S-80728SL-AR-X
S-80729AL S-80729AL-AS-X
S-80730AL S-80730AL-AT-X S-80730SL-AT-X
S-80731AL S-80731AL-AV-X
S-80732AL S-80732AL-AW-X S-80732SL-AW-X
S-80721SL-AJ-X
S-80725AH-BN-X S-80725AN S-80725AN-DN-X S-80725SN-DN-X
S-80726AN S-80726AN-DP-X
S-80727AN S-80727AN-DQ-X S-80727SN-DQ-X
S-80728AN S-80728AN-DR-X S-80728SN-DR-X
S-80729AN-DS-X
S-80731AH S-80731AH-BV-X S-80731AN S-80731AN-DV-X
PR
S-80733AL S-80733AL-AX-X S-80733SL-AX-X S-80733AH
S-80734AL S-80734AL-AY-X
S-80735AL S-80735AL-AZ-X S-80735SL-AZ-X
S-80736AL-A0-X
S-80737AL S-80737AL-A1-X
S-80738AL S-80738AL-A2-X
S-80739AL S-80739AL-A3-X
ED
S-80741AL S-80741AL-A5-X
TI
NU
S-80740AL S-80740AL-A4-X S-80740SL-A4-X S-80740AH S-80740AH-B4-X S-80740AN S-80740AN-D4-X S-80740SN-D4-X
S-80741AN S-80741AN-D5-X
S-80742AN S-80742AN-D6-X S-80742SN-D6-X
S-80743AN S-80743AN-D7-X
S-80744AN S-80744AN-D8-X S-80744SN-D8-X
S-80742AL S-80742AL-A6-X S-80742SL-A6-X
S-80743AL S-80743AL-A7-X
S-80744AL S-80744AL-A8-X
Release S-80744HL S-80744HL-U8-X
voltage
4.70 max.
0.225
0.23
0.235
0.24
0.245
0.25
0.255
0.26
0.265
0.275
0.305
0.315
0.385
S-80745AL S-80745AL-A9-X S-80745SL-A9-X
S-80746AL S-80746AL-EA-X
S-80745AH-B9-X S-80745AN S-80745AN-D9-X S-80745SN-D9-X
S-80746AN-JA-X
S-80747AN-JB-X
S-80748AN S-80748AN-JC-X
S-80749AN-JD-X
S-80750AN S-80750AN-JE-X
S-80751AN S-80751AN-JF-X
S-80752AN-JG-T1
S-80753AN
S-80750SN-JE-X
S-80751SN-JF-X
S-80747AL S-80747AL-EB-X
SC
S-80751AL
DI
ON
S-80748AL-EC-X
S-80749AL-ED-X
S-80750AL-EE-X S-80750SL-EE-X
S-80751SL-EF-X
S-80752AL-EG-T1 S-80752SL-EG-T1
S-80755AL-EK-X
S-80761SL-ER-X
S-80763AN-JT-X
S-80777SN-J8-X
The last digit of the model name changes depending upon the packing form when it is an SOT package product (S-807XXSX
Series is packed on tape).
S : Stick
T : Tape (T1 and T2 types are available depending on the direction of detectors on the tape.)
** Please ask our sales person if you need another detection voltage product.
*
Seiko Instruments Inc.
OD
UC
T
S-80721AN S-80721AN-DJ-X S-80721SN-DJ-X
S-80722AN S-80722AN-DK-X
S-80723AN S-80723AN-DL-X S-80723SN-DL-X
S-80724AN S-80724AN-DM-X S-80724SN-DM-X
S-80730AN S-80730AN-DT-X S-80730SN-DT-X
S-80732AN S-80732AN-DW-X
S-80733AN S-80733AN-DX-X S-80733SN-DX-X
S-80734AN S-80734AN-DY-X
S-80735AN S-80735AN-DZ-X S-80735SN-DZ-X
S-80736AN S-80736AN-D0-X
S-80737AN S-80737AN-D1-X
S-80738AN S-80738AN-D2-X
S-80739AN S-80739AN-D3-X
3
HIGH-PRECISION VOLTAGE DETECTOR
S-807 Series
n
Output Configurations
1. S-807 Series model numbering conventions
Nch open-drain
(“L” reset type)
S-807 Series
“N”
is the last letter of
the model number.
Ex. S-80732AN
CMOS output
(“L” reset type)
“L”
is the last letter of
the model number.
Ex. S-80718AL
CMOS output
(“H” reset type)
“H”
is the last letter of
the model number.
Ex. S-80740AH
2. Output configurations and their implementations
Implementation
With different power supplies
With active low reset CPUs
With active high reset CPUs
As power resets employing CR circuits
With voltage divider resistors to vary (-V
DET
)
Nch
¡
¡
×
¡
¡
•
Example with two power supplies
V
DD
1
V
DD
2
V
DD
•
Examples with one power supply
V/D
Nch
OUT
V
SS
CPU
V/D
CMOS
PR
CPU
OUT
or
ED
V
SS
4
DI
SC
ON
TI
NU
Figure 3
Seiko Instruments Inc.
OD
UC
T
CMOS (“L”)
×
¡
×
×
×
V
DD
V/D
Nch
OUT
V
SS
CMOS (“H”)
×
×
¡
×
×
CPU
51单片机
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