S-87x Series
www.sii-ic.com
HIGH WITHSTAND-VOLTAGE
VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00
© Seiko Instruments Inc., 1997-2010
The S-87x Series is a low-power high withstand-voltage regulators with a reset function, which integrates highprecision voltage detection and voltage regulation circuits on a single chip.
The S-87x Series has lineups for lithium-ion battery packs.
Features
• Accuracy of output voltage:
•
•
•
•
•
•
•
•
±2.4 %
2.5 V to 5.8 V (0.1 V step)
Accuracy of detection voltage:
±2.4 % (For the F type, the release voltage is ±1.1 %)
2.1 V to 11.3 V (0.1 V step)
Low I/O voltage difference:
0.15 V typ. (at IOUT=30 mA, VOUT=5.0 V)
0.45 V typ. (at IOUT=30 mA, VOUT=3.0 V)
Low current consumption:
At Operation mode: 8 μA max.
At Shutdown mode: 3.5 μA max. (Available for the C/E/G type)
Wide operating voltage range:
24 V max.
Wide operating temperature range: −40°C to +85°C
Built-in delay circuit or shutdown circuit
Built-in short-circuit protection circuit
Lead-free, Sn 100%, halogen-free*1
*1. Refer to “ Product Name Structure” for details.
Applications
• Constant voltage power supply or reset circuit of battery-powered equipment, VTR, camera,
communications equipment and others.
• Lithium-ion secondary battery pack
Package
• SOT-89-5
Seiko Instruments Inc.
1
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00
S-87x Series
Block Diagrams
1. A/F type
Short-circuit
protection circuit
VIN
Voltage
regulator
VOUT
Voltage detection
circuit
VOR
Delay circuit
VSS
CD
Figure 1
2. B type
Short-circuit
protection circuit
VIN
Voltage
regulator
Voltage detection
circuit
VSS
Delay circuit
CD
Figure 2
2
Seiko Instruments Inc.
VOUT
VOR
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00
S-87x Series
3. C type
Short-circuit
protection circuit
VIN
Voltage
regulator
VOUT
VOR
Voltage detection
circuit
VSS
Shutdown circuit
VPF
Figure 3
4. E type
Short-circuit
protection circuit
VIN
Voltage
regulator
VOUT
Power on/off
SENSE
VOR
Voltage detection
circuit
VSS
Figure 4
Seiko Instruments Inc.
3
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00
S-87x Series
5. G type
Short-circuit
protection circuit
VIN
Voltage
regulator
VOUT
Voltage detection
circuit
VSS
VOR
Shutdown circuit
VPF
Figure 5
4
Seiko Instruments Inc.
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00
S-87x Series
Product Name Structure
1. Function list
Table 1
Type name
Voltage detector
(VD)
A type
B type
C type
E type
F type
G type
Detects VIN
Detects VOUT
Detects VIN
Detects VSENSE
Detects VIN
Detects VOUT
Detection voltage
(−VDET) accuracy
[%]
±2.4
±2.4
±2.4
±2.4
⎯
±2.4
Release voltage
(+VDET) accuracy
[%]
⎯
⎯
⎯
⎯
±1.1
⎯
Built-in
delay
circuit
Yes
Yes
No
No
Yes
No
Shutdown
function
VD
VR
No
No
No
No
Yes
No
Yes
No
No
No
Yes
No
2. Product name selection guide
S-87 xx xx x UP - xxx T2 x
Environmental code
U: Lead-free (Sn 100%), halogen-free
G: Lead-free (for details, please contact our sales office)
IC direction in the tape sepecifications*1
Product name (Abbreviation)*2
Package name (Abbreviation)
UP: SOT-89-5
Product type
A: Built-in delay circuit, VIN detection (−VDET detection)
B: Built-in delay circuit, VOUT detection
C: Built-in shudown circuit for regulator, VIN detection
E: Built-in shudown circuit for regulator, VSENSE detection
F: Built-in delay circuit, VIN detection (+VDET detection)
G: Built-in shudown circuit for regulator, VOUT detection
Detection voltage of voltage detector
21 to 94, A0, B0, B3 (Ex. When the detection
voltage of voltage
detector is 2.1 V, it is expressed as 21.*3)
Output voltage of voltage regulator
25 to 56 (Ex. When the output voltage of voltage regulator is
*1. Refer to the tape specifications at the end of this document.
*2. Refer to the Table 2 to Table 3 in the “4. Product name list”.
*3. A0 for 10.0 V, B0 for 11.0 V, B3 for 11.3 V.
3. Package
Package Name
SOT-89-5
Package
UP005-A-P-SD
Drawing Code
Tape
UP005-A-C-SD
Seiko Instruments Inc.
Reel
UP005-A-R-SD
5
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00
S-87x Series
4. Product name list
Table 2 (1/2)
VR output
voltage [V]
5.6
5.2
5.0
3.3
3.0
2.6
6
VD detection
voltage [V]
3.5
9.4
7.1
5.5
11.0
7.7
6.1
4.5
4.3
4.1
3.9
3.7
3.4
2.9
2.1
7.7
6.1
4.1
2.8
2.5
6.9
5.9
2.5
2.4
2.3
2.2
2.1
2.2
S-87xxxxA Series
S-87xxxxB Series
⎯
⎯
⎯
⎯
⎯
S-875077AUP-AAFT2x
⎯
S-875045AUP-AAAT2x
S-875043AUP-AABT2x
S-875041AUP-AACT2x
S-875039AUP-AADT2x
S-875037AUP-AAET2x
⎯
⎯
⎯
S-873377AUP-0AAT2x
⎯
⎯
S-873328AUP-0ABT2x
⎯
⎯
⎯
S-873025AUP-ADAT2x
S-873024AUP-ADBT2x
S-873023AUP-ADCT2x
S-873022AUP-ADDT2x
S-873021AUP-ADET2x
⎯
S-875635BUP-AGAT2x
⎯
⎯
⎯
⎯
⎯
⎯
S-875045BUP-ABAT2x
S-875043BUP-ABBT2x
S-875041BUP-ABCT2x
S-875039BUP-ABDT2x
S-875037BUP-ABET2x
S-875034BUP-ABFT2x
S-875029BUP-ABHT2x
S-875021BUP-ABGT2x
⎯
⎯
⎯
⎯
S-873325BUP-ALAT2x
⎯
⎯
S-873025BUP-AEAT2x
S-873024BUP-AEBT2x
S-873023BUP-AECT2x
S-873022BUP-AEDT2x
S-873021BUP-AEET2x
S-872622BUP-OLAT2x
Seiko Instruments Inc.
S-87xxxxC Series
⎯
S-875294CUP-AHCT2x
S-875271CUP-AHAT2x
S-875255CUP-AHBT2x
S-8750B0CUP-ACGT2x
S-875077CUP-ACFT2x
S-875061CUP-ACHT2x
S-875045CUP-ACAT2x
S-875043CUP-ACBT2x
S-875041CUP-ACCT2x
S-875039CUP-ACDT2x
S-875037CUP-ACET2x
⎯
⎯
⎯
⎯
S-873361CUP-AOHT2x
S-873341CUP-AOCT2x
⎯
⎯
S-873069CUP-AFFT2x
S-873059CUP-AFGT2x
S-873025CUP-AFAT2x
S-873024CUP-AFBT2x
S-873023CUP-AFCT2x
S-873022CUP-AFDT2x
S-873021CUP-AFET2x
⎯
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00
S-87x Series
Table 2 (2/2)
VR output
voltage [V]
5.0
VD detection
S-87xxxxE Series
S-87xxxxG Series
voltage [V]
S-8750B0EUP-AJIT2x
11.0
⎯
S-875087EUP-AJGT2x
8.7
⎯
7.7
S-875077EUP-AJFT2x
⎯
6.1
S-875061EUP-AJHT2x
⎯
S-875042GUP-ANCT2x
4.2
⎯
S-875037GUP-ANET2x
3.7
⎯
S-875033EUP-AJAT2x
3.3
⎯
S-875030EUP-AJBT2x
3.0
⎯
S-8733B0EUP-APCT2x
3.3
11.0
⎯
S-8733A0EUP-APFT2x
10.0
⎯
S-873382EUP-APHT2x
8.2
⎯
S-873372EUP-APET2x
7.2
⎯
S-873364EUP-APGT2x
6.4
⎯
S-873348EUP-APDT2x
4.8
⎯
3.0
S-873330EUP-APBT2x
⎯
3.0
11.3
S-8730B3EUP-AMFT2x
⎯
8.2
S-873082EUP-AMCT2x
⎯
6.2
S-873062EUP-AMBT2x
⎯
S-873050EUP-AMET2x
5.0
⎯
S-873042EUP-AMDT2x
4.2
⎯
S-872548EUP-AZBT2x
2.5
4.8
⎯
S-872530EUP-AZCT2x
3.0
⎯
S-872526EUP-AZAT2x
2.6
⎯
Caution In the S-87xxxxB/S-87xxxxG Series, when the output voltage of the voltage regulator is
close to the detection voltage of the voltage detector, the transient response of the
voltage regulator may cause false detection. Please take transient response into
account when deciding voltages.
Remark 1.
2.
x: G or U
Please select products of environmental code = U for Sn 100%, halogen-free products.
Table 3
VR output
VD release
S-87xxxxF Series
voltage [V]
voltage [V]
S-875087FUP-AKAT2x
5.0
8.7
Remark 1. x: G or U
2. Please select products of environmental code = U for Sn 100%, halogen-free products.
Seiko Instruments Inc.
7
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00
S-87x Series
Pin Configuration
SOT-89-5
Top view
5
4
Table 4
Pin No.
1
2
3
1
2
3
Symbol
VOUT
VSS
CD
(A/B/F type)
VPF
(C/G type)
SENSE
(E type)
4
VOR
5
VIN
Figure 6
8
Seiko Instruments Inc.
Description
Voltage output pin of voltage regulator
Ground pin
Connection pin of external capacitor
for delay of voltage detector
Input pin of shutdown circuit
Voltage monitoring pin of voltage
detector
Output pin of voltage detector,
Nch opendrain output
Positive power-supply
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00
S-87x Series
Absolute Maximum Ratings
Table 5
Input voltage*1
Item
(Unless otherwise specified: Ta=25°C)
Absolute maximum rating
Unit
V
VSS−0.3 to VSS+26
VSS−0.3 to VIN+0.3
Symbol
VIN
VCD
(A/B/F type)
VSS−0.3 to VSS+26
VPF
(C/G type)
VSENSE
(E type)
VOUT
VOR
PD
VSS−0.3 to VIN+0.3
VSS−0.3 to VSS+26
500 (When not mounted on board)
mW
1000*2
°C
Operating ambient temperature
Topr
−40 to +85
Storage temperature
Tstg
−40 to +125
*1. Even pulse (μs) noise exceeding the above input voltage (VSS+26 V) may damage the IC. Observe the
rated input voltage (VSS+26 V).
*2. When mounted on board
[Mounted board]
(1) Board size: 114.3 mm × 76.2 mm × t1.6 mm
(2) Board name: JEDEC STANDARD51-7
Output voltage
Output voltage of voltage detector
Power dissipation
Caution The absolute maximum ratings are rated values exceeding which the product could suffer
physical damage. These values must therefore not be exceeded under any conditions.
(2) When not mounted on board
600
Power Dissipation PD (mW)
Power Dissipation PD (mW)
(1) When mounted on board
1200
1000
800
600
400
200
0
0
50
100
150
500
400
300
200
100
0
0
Ambient Temperature Ta (°C)
50
100
150
Ambient Temperature Ta (°C)
Figure 7 Power dissipation of package
Seiko Instruments Inc.
9
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00
S-87x Series
Electrical Characteristics
1. S-8750xxA Series/S-8750xxB Series
Table 6
Item
Voltage Regulator
Output voltage
I/O voltage difference
Symbol
VOUT
Vdif
Line regulation
ΔVOUT1
Load regulation
ΔVOUT2
Input voltage
VIN
ΔVOUT
ΔTa
Temperature
coefficient of VOUT
Voltage Detector
Operating voltage
Delay time*1
Tempertue
characteristic of −VDET
Detection voltage
Vopr
tpd
Δ − VDET
ΔTa
−VDET
Sink current
IDOUT
Leakage current
ILEAK
Hysteresis width
VHYS
Condition
VIN=7 V, IOUT=30 mA
IOUT=30 mA
VIN=6 to 24 V,
IOUT=30 mA
VIN=7 V,
IOUT=50 μA to 40 mA
⎯
VIN=7 V, IOUT=30 mA,
Ta=−40°C to +85°C
CD=4.7 nF
⎯
Ta=−40°C to +85°C
S-875045A/B
S-875043A/B
S-875041A/B
S-875039A/B
S-875037A/B
S-875021B
Nch,
VIN=1.3 V
VDS=0.5 V VIN=2.4 V
VIN=3.6 V
Nch,
VDS=24 V, VIN=10 V
S-875045A/B
S-875043A/B to
S-875021A/B
Total
Current consumption*2
ISS
VIN=7 V, Unloaded
*1. tpd (ms)=(3.18 min., 5.74 typ., 8.73 max.)×CD (nF)
*2. Excluding the charging current of CD
10
Seiko Instruments Inc.
(Unless otherwise specified: Ta=25°C)
Test
Min.
Typ.
Max.
Unit
circuit
4.88
⎯
5.00
0.15
5.12
0.40
V
⎯
15
50
mV
⎯
15
50
⎯
⎯
24
V
⎯
±0.38
±1.52
mV
/°C
1.3
15
⎯
27
24
41
2
3
⎯
±0.5
±2.0
4.392
4.196
4.001
3.806
3.611
2.049
0.25
1.50
3.00
4.50
4.30
4.10
3.90
3.70
2.10
0.60
2.60
4.50
4.608
4.404
4.199
3.994
3.789
2.151
⎯
⎯
⎯
V
ms
mV
/°C
V
mA
4
⎯
⎯
0.1
−VDET
×0.01
−VDET
×0.03
⎯
⎯
⎯
3
−VDET
×0.025
−VDET
×0.08
8
1
2
μA
V
2
μA
5
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00
S-87x Series
2. S-8730xxA Series/S-8730xxB Series
Table 7
Item
Voltage Regulator
Output voltage
I/O voltage difference
Symbol
VOUT
Vdif
Line regulation
ΔVOUT1
Load regulation
ΔVOUT2
Input voltage
VIN
ΔVOUT
ΔTa
Temperature
coefficient of VOUT
Voltage Detector
Operating voltage
Delay time*1
Temperature
characteristic of −VDET
Detection voltage
Sink current
Vopr
tpd
Δ − VDET
ΔTa
−VDET
IDOUT
Leakage current
ILEAK
Hysteresis width
VHYS
Total
Current consumption*2
ISS
Condition
VIN=5 V, IOUT=30 mA
IOUT=30 mA
VIN=4 to 24 V,
IOUT=30 mA
VIN=5 V,
IOUT=50 μA to 40 mA
⎯
VIN=5 V, IOUT=30 mA,
Ta=−40°C to +85°C
CD=4.7 nF
⎯
Ta=−40°C to +85°C
S-873025A/B
S-873024A/B
S-873023A/B
S-873022A/B
S-873021A/B
Nch,
VIN=1.3 V
VDS=0.5 V Other than below
VIN=2.4 V
S-873025A/B
Nch,
VDS=24 V, VIN=10 V
⎯
VIN=5 V, Unloaded
(Unless otherwise specified: Ta=25°C)
Test
Min.
Typ.
Max.
Unit
circuit
2.928
⎯
3.000
0.45
3.072
0.70
V
1
⎯
15
50
mV
⎯
15
50
⎯
⎯
24
V
⎯
±0.23
±0.92
mV
/°C
1.3
15
⎯
27
24
41
2
3
⎯
±0.3
±1.2
2.440
2.342
2.244
2.147
2.049
2.500
2.400
2.300
2.200
2.100
2.560
2.458
2.356
2.253
2.151
V
ms
mV
/°C
V
0.25
0.60
⎯
mA
4
1.50
2.60
⎯
⎯
⎯
0.1
μA
−VDET
×0.03
⎯
−VDET
×0.08
V
2
⎯
3
8
μA
5
2
*1. tpd (ms)=(3.18 min., 5.74 typ., 8.73 max.)×CD (nF)
*2. Excluding the charging current of CD
Seiko Instruments Inc.
11
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00
S-87x Series
3. S-875635B
Table 8
Item
Voltage Regulator
Output voltage
I/O voltage difference
Symbol
Condition
VOUT
Vdif
VIN=7.6 V, IOUT=30 mA
IOUT=30 mA
VIN=6.6 to 24 V,
IOUT=30 mA
VIN=7.6 V,
IOUT=50 μA to 40 mA
⎯
Line regulation
ΔVOUT1
Load regulation
ΔVOUT2
Input voltage
VIN
ΔVOUT
ΔTa
Temperature
coefficient of VOUT
Voltage Detector
Operating voltage
Delay time*1
Temperature
characteristic of −VDET
Detection voltage
Sink current
Vopr
tpd
Δ − VDET
ΔTa
−VDET
IDOUT
Leakage current
ILEAK
Hysteresis width
VHYS
Total
Current consumption*2
ISS
VIN=7.6 V, IOUT=30 mA,
Ta=−40°C to +85°C
CD=4.7 nF
⎯
Ta=−40°C to +85°C
⎯
Nch,
VIN=1.3 V
VDS=0.5 V VIN=2.4 V
Nch,
VDS=24 V, VIN=10 V
⎯
VIN=7.6 V, Unloaded
*1. tpd (ms)=(3.18 min., 5.74 typ., 8.73 max.)×CD (nF)
*2. Excluding the charging current of CD
12
Seiko Instruments Inc.
(Unless otherwise specified: Ta=25°C)
Test
Min.
Typ.
Max.
Unit
circuit
5.465
⎯
5.60
0.15
5.735
0.40
V
⎯
15
50
mV
⎯
15
50
⎯
⎯
24
V
⎯
±0.43
±1.72
mV
/°C
1.3
15
⎯
27
24
41
⎯
±0.3
±1.2
3.416
0.25
1.50
3.50
0.60
2.60
3.584
⎯
⎯
V
ms
mV
/°C
V
mA
⎯
⎯
0.1
μA
−VDET
×0.03
⎯
−VDET
×0.08
V
2
⎯
4
8
μA
5
1
2
3
2
4
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00
S-87x Series
4. S-873325B
Table 9
Item
Voltage Regulator
Output voltage
I/O voltage difference
Symbol
Condition
VOUT
Vdif
VIN=5.3 V, IOUT=30 mA
IOUT=30 mA
VIN=4.3 to 24 V,
IOUT=30 mA
VIN=5.3 V,
IOUT=50 μA to 40 mA
⎯
Line regulation
ΔVOUT1
Load regulation
ΔVOUT2
Input voltage
VIN
ΔVOUT
ΔTa
Temperature
coefficient of VOUT
Voltage Detector
Operating voltage
Delay time*1
Temperature
characteristic of −VDET
Detection voltage
Vopr
tpd
Δ − VDET
ΔTa
−VDET
Sink current
IDOUT
Leakage current
ILEAK
Hysteresis width
VHYS
Total
Current consumption*2
ISS
(Unless otherwise specified: Ta=25°C)
Test
Min.
Typ.
Max.
Unit
circuit
3.220
⎯
3.300
0.45
3.380
0.70
V
⎯
15
50
mV
⎯
15
50
⎯
⎯
24
V
⎯
±0.25
±1.00
mV
/°C
1.3
15
⎯
27
24
41
2
3
Ta=−40°C to +85°C
⎯
±0.2
±0.8
⎯
Nch,
VDS=0.5 V, VIN=1.3 V
Nch,
VDS=24 V, VIN=10 V
2.440
2.500
2.560
V
ms
mV
/°C
V
0.25
0.60
⎯
mA
4
⎯
⎯
0.1
μA
−VDET
×0.03
⎯
−VDET
×0.08
V
2
⎯
4
8
μA
5
VIN=5.3 V, IOUT=30 mA,
Ta=−40°C to +85°C
CD=4.7 nF
⎯
⎯
VIN=5.3 V, Unloaded
1
2
*1. tpd (ms)=(3.18 min., 5.74 typ., 8.73 max.)×CD (nF)
*2. Excluding the charging current of CD
Seiko Instruments Inc.
13
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00
S-87x Series
5. S-8750xxC Series/S-875037G
Table 10 (1/2)
Item
Voltage Regulator
Output voltage
I/O voltage difference
Symbol
VOUT
Vdif
Line regulation
ΔVOUT1
Load regulation
ΔVOUT2
Input voltage
VIN
ΔVOUT
ΔTa
Temperature
coefficient of VOUT
Shutdown output
voltage
Voltage Detector
Operating voltage
Temperature
characteristic of −VDET
VOUT/OFF
Vopr
Δ − VDET
ΔTa
Detection voltage
−VDET
Sink current
IDOUT
Leakage current
ILEAK
Hysteresis width
VHYS
14
(Unless otherwise specified: Ta=25°C)
Test
Min.
Typ.
Max.
Unit
circuit
Condition
VIN=7 V, IOUT=30 mA
IOUT=30 mA
VIN=6 to 24 V,
IOUT=30 mA
VIN=7 V,
IOUT=50 μA to 40 mA
⎯
4.88
⎯
5.00
0.15
5.12
0.40
V
⎯
15
50
mV
⎯
15
50
⎯
⎯
24
V
VIN=7 V, IOUT=30 mA,
Ta=−40°C to +85°C
⎯
±0.38
±1.52
mV
/°C
VIN=7 V, VPF =”L”,
RL=1 MΩ
⎯
⎯
0.1
V
6
⎯
Ta=−40°C
S-8750B0C
to +85°C
S-875077C
S-875061C to
S-875037C,
S-875037G
S-8750B0C
S-875077C
S-875061C
S-875045C
S-875043C
S-875041C
S-875039C
S-875037C/S-875037G
Nch,
VIN=1.3 V
VDS=0.5 V VIN=2.4 V
VIN=3.6 V
VIN=10 V
Nch,
S-875077C to
VDS=24 V S-875037C,
S-875037G
VIN=15 V
S-8750B0C
1.3
⎯
24
2
⎯
±0.8
±3.2
V
mV
/°C
⎯
±0.6
±2.4
⎯
±0.5
±2.0
10.736
7.515
5.953
4.392
4.196
4.001
3.806
3.611
0.25
1.50
3.00
11.00
7.70
6.10
4.50
4.30
4.10
3.90
3.70
0.60
2.60
4.50
11.264
7.885
6.247
4.608
4.404
4.199
3.994
3.789
⎯
⎯
⎯
⎯
⎯
0.1
μA
S-875045C
−VDET
×0.01
⎯
−VDET
×0.025
V
S-8750B0C to S-875061C,
S-875043C to S-875037C,
S-875037G
−VDET
×0.03
⎯
−VDET
×0.08
Seiko Instruments Inc.
1
2
V
mA
4
2
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00
S-87x Series
Table 10 (2/2)
Item
Symbol
Condition
(Unless otherwise specified: Ta=25°C)
Test
Min.
Typ.
Max.
Unit
circuit
Total
Current consumption
Shutdown input
voltage
ISS
VIN=7 V,
Unloaded
S-8750B0C to
S-875061C
S-875045C to
S-875037C,
S-875037G
⎯
4
8
⎯
3
8
lof
VPF =”L”, Shutdown,
VIN=7 V
⎯
1.5
3.5
VIL
VPF =”L”, Shutdown,
VIN=7 V
⎯
⎯
0.4
VIH
VPF =”H”, Power on,
VIN=7 V
2.0
⎯
⎯
Seiko Instruments Inc.
μA
5
V
6
15
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00
S-87x Series
6. S-8730xxC Series
Table 11
Item
Voltage Regulator
Output voltage
I/O voltage difference
Symbol
VOUT
Vdif
Line regulation
ΔVOUT1
Load regulation
ΔVOUT2
Input voltage
VIN
ΔVOUT
ΔTa
Temperature
coefficient of VOUT
Shutdown output
voltage
Voltage Detector
Operating voltage
Temperature
characteristic of −VDET
VOUTOFF
Condition
VIN=5 V, IOUT=30 mA
IOUT=30 mA
VIN=4 to 24 V,
IOUT=30 mA
VIN=5 V,
IOUT=50 μA to 40 mA
⎯
VIN=5 V, IOUT=30 mA,
Ta=−40°C to +85°C
VIN=5V,
VPF =”L”, RL=1 MΩ
Vopr
Δ − VDET
ΔTa
Detection voltage
−VDET
Sink current
IDOUT
Ta=−40°C
to +85°C
⎯
S-873069C
S-873025C to
S-873021C
Leakage current
ILEAK
S-873069C
S-873025C
S-873024C
S-873023C
S-873022C
S-873021C
Nch,
VIN=1.3 V
VDS=0.5 V Other than below
VIN=2.4 V
S-873069C,
S-873025C
VIN=3.6 V
S-873069C
Nch, VDS=24 V, VIN=10 V
Hysteresis width
VHYS
⎯
Total
Current consumption
Shutdown input voltage
16
(Unless otherwise specified: Ta=25°C)
Test
Min.
Typ.
Max.
Unit
circuit
2.928
⎯
3.000
0.45
3.072
0.70
V
⎯
15
50
mV
⎯
15
50
⎯
⎯
24
V
⎯
±0.23
±0.92
mV
/°C
⎯
⎯
0.1
V
6
1.3
⎯
⎯
±0.5
24
±2.0
V
2
⎯
±0.3
±1.2
6.734
2.440
2.342
2.244
2.147
2.049
6.900
2.500
2.400
2.300
2.200
2.100
7.066
2.560
2.458
2.356
2.253
2.151
V
0.25
0.60
⎯
mA
1.50
2.60
⎯
3.00
4.50
⎯
⎯
−VDET
×0.03
⎯
0.1
−VDET
×0.08
μA
V
2
3
1.5
8
3.5
μA
5
V
6
⎯
ISS
lof
VIN=5 V, Unloaded
VPF =”L”, Shutdown, VIN=5 V
⎯
⎯
VIL
VPF =”L”, Shutdown, VIN=5 V
⎯
⎯
0.4
VIH
VPF =”H”, Power on, VIN=5 V
2.0
⎯
⎯
Seiko Instruments Inc.
1
mV
/°C
4
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00
S-87x Series
7. S-875271C, S-875255C
Table 12
Item
Voltage Regulator
Output voltage
I/O voltage difference
Symbol
VOUT
Vdif
Line regulation
ΔVOUT1
Load regulation
ΔVOUT2
Input voltage
VIN
ΔVOUT
ΔTa
Temperature
coefficient of VOUT
Shutdown output
voltage
Voltage Detector
Operating voltage
Temperature
characteristic of −VDET
VOUTOFF
Vopr
Δ − VDET
ΔTa
Detection voltage
−VDET
Sink current
IDOUT
Leakage current
ILEAK
Hysteresis width
VHYS
Total
Current consumption
Shutdown input
voltage
Condition
VIN=7.2 V, IOUT=30 mA
IOUT=30 mA
VIN=6.2 to 24 V,
IOUT=30 mA
VIN=7.2 V,
IOUT=50 μA to 40 mA
⎯
VIN=7.2 V, IOUT=30 mA,
Ta=−40°C to +85°C
VIN=7.2V,
VPF =”L”, RL=1 MΩ
⎯
Ta=−40°C S-875271C
to +85°C
S-875255C
S-875271C
S-875255C
Nch,
VIN=1.3V
VDS=0.5 V
VIN=2.4V
VIN=3.6V
Nch, VDS=24 V, VIN=10 V
⎯
(Unless otherwise specified: Ta=25°C)
Test
Min.
Typ.
Max.
Unit
circuit
5.075
⎯
5.20
0.15
5.325
0.40
V
⎯
15
50
mV
⎯
15
50
⎯
⎯
24
V
⎯
±0.40
±1.60
mV
/°C
⎯
⎯
0.1
V
6
1.3
⎯
⎯
6.929
5.368
0.25
1.50
3.00
⎯
−VDET
×0.03
⎯
±0.5
±0.4
7.10
5.50
0.60
2.60
4.50
⎯
24
±2.0
±1.6
7.271
5.632
⎯
⎯
⎯
0.1
−VDET
×0.08
V
mV
/°C
V
2
mA
4
V
2
μA
5
V
6
⎯
ISS
VIN=7.2 V, Unloaded
⎯
4
8
lof
VPF =”L”, Shutdown,
VIN=7.2 V
⎯
1.5
3.5
VIL
VPF =”L”, Shutdown,
VIN=7.2 V
⎯
⎯
0.4
VIH
VPF =”H”, Power on,
VIN=7.2 V
2.0
⎯
⎯
Seiko Instruments Inc.
1
μA
17
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00
S-87x Series
8. S-875294C
Table 13
Item
Voltage Regulator
Output voltage
I/O voltage difference
Symbol
VOUT
Vdif
Line regulation
ΔVOUT1
Load regulation
ΔVOUT2
Input voltage
VIN
ΔVOUT
ΔTa
Temperature
coefficient of VOUT
Shutdown output
voltage
Voltage Detector
Operating voltage
Temperature
characteristic of −VDET
VOUTOFF
Vopr
Δ − VDET
ΔTa
Detection voltage
−VDET
Sink current
IDOUT
Leakage current
ILEAK
Hysteresis width
VHYS
Total
Current consumption
Shutdown input
voltage
18
Condition
VIN=14.4 V, IOUT=30 mA
IOUT=30 mA
VIN=6.2 to 24 V,
IOUT=30 mA
VIN=14.4 V,
IOUT=50 μA to 40 mA
⎯
VIN=14.4 V, IOUT=30 mA,
Ta=−40°C to +85°C
VIN=14.4 V,
VPF =”L”, RL=1 MΩ
⎯
Ta=−40°C to +85°C
⎯
VIN=1.3 V
VIN=2.4 V
VIN=3.6 V
Nch, VDS=24 V, VIN=10 V
Nch,
VDS=0.5 V
⎯
(Unless otherwise specified: Ta=25°C)
Test
Min.
Typ.
Max.
Unit
circuit
5.075
⎯
5.20
0.15
5.325
0.40
V
⎯
15
50
mV
⎯
15
50
⎯
⎯
24
V
⎯
±0.40
±1.60
mV
/°C
⎯
⎯
0.1
V
6
1.3
⎯
24
2
⎯
±0.7
±2.8
V
mV
/°C
9.174
9.40
9.626
V
0.25
1.50
3.00
⎯
−VDET
×0.03
0.60
2.60
4.50
⎯
⎯
⎯
⎯
0.1
−VDET
×0.08
mA
V
2
μA
5
V
6
⎯
ISS
VIN=14.4 V, Unloaded
⎯
4
9
lof
VPF =”L”, Shutdown,,
VIN=14.4 V
⎯
2.1
4.7
VIL
VPF =”L”, Shutdown,
VIN=14.4 V
⎯
⎯
0.4
VIH
VPF =”H”, Power on,
VIN=14.4 V
2.6
⎯
⎯
Seiko Instruments Inc.
1
4
μA
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00
S-87x Series
9. S-873361C
Table 14
Item
Voltage Regulator
Output voltage
I/O voltage difference
Symbol
VOUT
Vdif
Line regulation
ΔVOUT1
Load regulation
ΔVOUT2
Input voltage
VIN
ΔVOUT
ΔTa
Temperature
coefficient of VOUT
Shutdown output
voltage
Voltage Detector
Operating voltage
Temperature
characteristic of −VDET
VOUTOFF
Vopr
Δ − VDET
ΔTa
Detection voltage
−VDET
Sink current
IDOUT
Leakage current
ILEAK
Hysteresis width
VHYS
Total
Current consumption
Shutdown input
voltage
Condition
VIN=5.3 V, IOUT=30 mA
IOUT=30 mA
VIN=4.3 to 24 V,
IOUT=30 mA
VIN=5.3 V,
IOUT=50 μA to 40 mA
⎯
(Unless otherwise specified: Ta=25°C)
Test
Min.
Typ.
Max.
Unit
circuit
3.220
⎯
3.300
0.45
3.380
0.70
V
⎯
15
50
mV
⎯
15
50
⎯
⎯
24
V
VIN=5.3 V, IOUT=30 mA,
Ta=−40°C to +85°C
⎯
±0.25
±1.00
mV
/°C
VIN=5.3 V, VPF =”L”,
RL=1 MΩ
⎯
⎯
0.1
V
6
1.3
⎯
24
2
⎯
±0.5
±2.0
V
mV
/°C
5.953
6.100
6.247
V
0.25
1.50
3.00
⎯
−VDET
×0.03
0.60
2.60
4.50
⎯
⎯
⎯
⎯
0.1
−VDET
×0.08
mA
V
2
μA
5
V
6
⎯
Ta=−40°C to +85°C
⎯
VIN=1.3 V
VIN=2.4 V
VIN=3.6 V
Nch, VDS=24 V, VIN=10 V
Nch,
VDS=0.5 V
⎯
⎯
ISS
VIN=5.3 V, Unloaded
⎯
4
8
lof
VPF =”L”, Shutdown,
VIN=5.3 V
⎯
1.5
3.5
VIL
VPF =”L”, Shutdown,
VIN=5.3 V
⎯
⎯
0.4
VIH
VPF =”H”, Power on,
VIN=5.3 V
2.0
⎯
⎯
Seiko Instruments Inc.
1
4
μA
19
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00
S-87x Series
10. S-8750xxE Series
Item
Table 15
(Unless otherwise specified: Ta=25°C, Connect the SENSE pin to the VIN pin.)
Test
Symbol
Condition
Min.
Typ.
Max. Unit
circuit
Voltage Regulator
Output voltage
I/O voltage difference
VOUT
Vdif
Line regulation
ΔVOUT1
Load regulation
ΔVOUT2
Input voltage
Temperature
coefficient of VOUT
Output voltage during
voltage detection
Voltage Detector
Operating voltage
Temperature
characteristic of −VDET
VIN
ΔVOUT
ΔTa
VOUTOFF
Vopr
Δ − VDET
ΔTa
Detection voltage
−VDET
Sink current
IDOUT
Leakage current
ILEAK
SENSE pin input current
lSENSE
Hysteresis width
Total
Current consumption
VIN=−VDET (Typ.)−1V, RL=1 MΩ
⎯
Ta=−40°C to
+85°C
S-875077E
S-875061E
S-875077E
S-875061E
Nch, VDS=0.5 V
VIN=1.3 V
VIN=2.4 V
VIN=3.6 V
Nch, VDS=24 V,
VIN=−VDET (Typ.) +2 V
VIN=7 V,
S-875077E
VSENSE=−VDET (Typ.)
S-875061E
+2 V
4.88
5.00
5.12
⎯
0.15
0.40
⎯
15
50
⎯
15
50
⎯
⎯
24
V
⎯
±0.38
±1.52
mV
/°C
⎯
⎯
0.1
V
6
1.3
⎯
24
±2.4
±2.0
7.885
6.247
⎯
⎯
⎯
V
mV
/°C
2
7.515
5.953
0.25
1.50
3.00
⎯
±0.6
±0.5
7.70
6.10
0.60
2.60
4.50
⎯
⎯
0.1
⎯
0.6
1.7
⎯
0.7
1.8
−VDET
×0.03
⎯
−VDET
×0.08
V
2
μA
5
VHYS
⎯
ISS
VIN=−VDET (Typ.)+2 V, S-875077E
Unloaded
S-875061E
⎯
4
8
⎯
4
9
VIN=−VDET (Typ.)−1 V, Shutdown
⎯
1.5
3.5
lof
20
VIN=7 V, IOUT=30 mA,
VSENSE=−VDET (Typ.)+2 V
IOUT=30 mA,
VSENSE=−VDET (Typ.)+2 V
VIN=6 to 24 V, IOUT=30 mA,
VSENSE=−VDET (Typ.)+2 V
VIN=7 V, IOUT=50 μA to 40 mA,
VSENSE=−VDET (Typ.)+2 V
⎯
VIN=7 V, IOUT=30 mA,
Ta=−40°C to +85°C,
VSENSE=−VDET (Typ.)+2 V
Seiko Instruments Inc.
V
1
mV
V
mA
4
μA
7
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00
S-87x Series
11. S-8730xxE Series
Item
Table 16
(Unless otherwise specified: Ta=25°C, Connect the SENSE pin to the VIN pin.)
Test
Symbol
Condition
Min.
Typ.
Max. Unit
circuit
Voltage Regulator
Output voltage
I/O voltage difference
VOUT
Vdif
Line regulation
ΔVOUT1
Load regulation
ΔVOUT2
Input voltage
Temperature
coefficient of VOUT
Output voltage during
voltage detection
Voltage Detector
Operating voltage
Temperature
characteristic of −VDET
Detection voltage
VIN
ΔVOUT
ΔTa
VOUTOFF
Vopr
Δ − VDET
ΔTa
−VDET
VIN=5 V, IOUT=30 mA,
VSENSE=−VDET (Typ.)+2 V
IOUT=30 mA,
VSENSE=−VDET (Typ.)+2 V
VIN=4 to 24 V, IOUT=30 mA,
VSENSE=−VDET (Typ.)+2 V
VIN=5 V, IOUT=50 μA to 40 mA,
VSENSE=−VDET (Typ.)+2 V
⎯
VIN=5 V, IOUT=30 mA,
Ta=−40°C to +85°C,
VSENSE=−VDET (Typ.)+2 V
VIN=−VDET (Typ.)−1 V, RL=1 MΩ
⎯
Ta=−40°C to
+85°C
S-873082E
S-873062E
S-873082E
S-873062E
VIN=1.3 V
VIN=2.4 V
VIN=3.6 V
2.928
3.000
3.072
⎯
0.45
0.70
⎯
15
50
⎯
15
50
⎯
⎯
24
V
⎯
±0.23
±0.92
mV
/°C
⎯
⎯
0.1
V
6
1.3
⎯
⎯
8.003
6.051
0.25
1.50
3.00
⎯
±0.6
±0.5
8.200
6.200
0.60
2.60
4.50
24
±2.4
±2.0
8.397
6.349
⎯
⎯
⎯
V
mV
/°C
2
⎯
⎯
0.1
⎯
0.6
1.7
⎯
0.6
1.8
Sink current
IDOUT
Leakage current
ILEAK
SENSE pin input
current
lSENSE
Hysteresis width
VHYS
⎯
−VDET
×0.03
⎯
−VDET
×0.08
ISS
lof
VIN=−VDET (Typ.)+2 V, Unloaded
VIN=−VDET (Typ.)−1 V, Shutdown
⎯
⎯
4
1.5
8
3.5
Total
Current consumption
Nch, VDS=0.5 V
Nch, VDS=24 V,
VIN=−VDET (Typ.)+2 V
VIN=5 V,
S-873082E
VSENSE=−VDET (Typ.)+
S-873062E
2V
Seiko Instruments Inc.
V
1
mV
V
mA
4
μA
7
V
2
μA
5
21
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00
S-87x Series
12. S-873330E
Item
Table 17
(Unless otherwise specified: Ta=25°C, Connect the SENSE pin to the VIN pin.)
Test
Symbol
Condition
Min.
Typ.
Max. Unit
circuit
Voltage Regulator
Output voltage
I/O voltage difference
VOUT
Vdif
Line regulation
ΔVOUT1
Load regulation
ΔVOUT2
Input voltage
Temperature
coefficient of VOUT
Output voltage during
voltage detection
Voltage Detector
Operating voltage
Temperature
characteristic of −VDET
VIN
ΔVOUT
ΔTa
VOUTOFF
Vopr
Δ − VDET
ΔTa
VIN=5.3 V, IOUT=30 mA,
VSENSE=−VDET (Typ.)+2 V
IOUT=30 mA,
VSENSE=−VDET (Typ.)+2 V
VIN=4.3 to 24 V, IOUT=30 mA,
VSENSE=−VDET (Typ.)+2 V
VIN=5.3 V,
IOUT=50 μA to 40 mA,
VSENSE=−VDET (Typ.)+2 V
⎯
VIN=5.3 V, IOUT=30 mA,
Ta=−40°C to +85°C,
VSENSE=−VDET (Typ.)+2 V
VIN=−VDET (Typ.)−1 V, RL=1 MΩ
⎯
Ta=−40°C to +85°C
3.220
3.300
3.380
⎯
0.45
0.70
⎯
15
50
⎯
15
50
⎯
⎯
24
V
⎯
±0.25
±1.00
mV
/°C
⎯
⎯
0.1
V
6
1.3
⎯
24
V
2
⎯
±0.2
±0.8
mV
/°C
2.928
3.000
3.072
V
0.25
1.50
0.60
2.60
⎯
⎯
mA
⎯
⎯
0.1
⎯
0.5
1.3
Detection voltage
−VDET
Sink current
IDOUT
Leakage current
ILEAK
SENSE pin input
current
lSENSE
Hysteresis width
VHYS
⎯
−VDET
×0.03
⎯
−VDET
×0.08
ISS
lof
VIN=−VDET (Typ.)+2 V, Unloaded
VIN=−VDET (Typ.)−1 V, Shutdown
⎯
⎯
4
1.5
8
3.5
Total
Current consumption
22
⎯
Nch,
VIN=1.3 V
VDS=0.5 V
VIN=2.4 V
Nch, VDS=24 V,
VIN=−VDET (Typ.)+2 V
VIN=5.3 V,
VSENSE=−VDET (Typ.)+2 V
Seiko Instruments Inc.
V
1
mV
4
μA
7
V
2
μA
5
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00
S-87x Series
13. S-8725xxE Series
Item
Table 18
(Unless otherwise specified: Ta=25°C, Connect the SENSE pin to the VIN pin.)
Test
Symbol
Condition
Min.
Typ.
Max. Unit
circuit
Voltage Regulator
Output voltage
I/O voltage difference
VOUT
Vdif
Line regulation
ΔVOUT1
Load regulation
ΔVOUT2
Input voltage
Temperature
coefficient of VOUT
Output voltage during
voltage detection
Voltage Detector
Operating voltage
Temperature
characteristic of
−VDET
Detection voltage
VIN
ΔVOUT
ΔTa
VOUTOFF
VIN=4.5 V, IOUT=30 mA,
VSENSE=−VDET (Typ.)+2 V
IOUT=30 mA,
VSENSE=−VDET (Typ.)+2 V
VIN=4.5 to 24 V, IOUT=30 mA,
VSENSE=−VDET (Typ.)+2 V
VIN=4.5 V,
IOUT=50 μA to 40 mA,
VSENSE=−VDET (Typ.)+2 V
⎯
VIN=4.5 V, IOUT=30 mA,
Ta=−40°C to +85°C,
VSENSE=−VDET (Typ.)+2 V
VIN=−VDET (Typ.)−1 V, RL=1 MΩ
⎯
Vopr
Δ − VDET
ΔTa
−VDET
Sink current
IDOUT
Leakage current
ILEAK
SENSE pin input
current
lSENSE
Hysteresis width
Ta=−40°C to
+85°C
S-872548E
S-872530E to
S-872526E
S-872548E
S-872530E
S-872526E
Nch,
VDS=0.5 V
VIN=1.3 V
VIN=2.4 V
VIN=3.6 V
Nch, VDS=24 V,
VIN=−VDET (Typ.)+2 V
VIN=4.5V,
S-872548E to
VSENSE=−VDET (Typ.)
S-872526E
+2 V
S-872548E to S-872530E
VHYS
S-872526E
Total
Current consumption
ISS
lof
VIN=−VDET (Typ.)+2 V, Unloaded
VIN=−VDET (Typ.)−1 V, Shutdown
Seiko Instruments Inc.
2.440
2.500
2.560
⎯
0.65
1.00
⎯
15
50
⎯
15
50
⎯
⎯
24
V
⎯
±0.23
±0.92
mV
/°C
⎯
⎯
0.1
V
6
1.3
⎯
⎯
±0.5
24
±2.0
V
2
⎯
±0.2
±0.8
4.685
2.928
2.538
0.25
1.50
3.00
4.800
3.000
2.600
0.60
2.60
4.50
4.915
3.072
2.662
⎯
⎯
⎯
⎯
⎯
0.1
⎯
0.5
1.3
−VDET
×0.03
−VDET
×0.02
⎯
⎯
⎯
⎯
4
1.5
−VDET
×0.08
−VDET
×0.05
8
3.5
V
1
mV
mV
/°C
V
mA
4
μA
7
V
2
μA
5
23
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00
S-87x Series
14. S-875087F
Table 19
Item
Symbol
Condition
Voltage Regulator
Output voltage
I/O voltage difference
Line regulation
VOUT
Vdif
ΔVOUT1
Load regulation
ΔVOUT2
Input voltage
VIN
ΔVOUT
ΔTa
VIN=7 V, IOUT=30 mA
IOUT=30 mA
VIN=6 to 24 V, IOUT=30 mA
VIN=7 V,
IOUT=50 μA to 40 mA
⎯
Temperature
coefficient of VOUT
(Unless otherwise specified: Ta=25°C)
Test
Min.
Typ.
Max.
Unit
circuit
4.88
⎯
⎯
5.00
0.15
15
5.12
0.40
50
⎯
15
50
⎯
⎯
24
V
⎯
±0.38
±1.52
mV
/°C
1.3
⎯
24
V
CD=4.7 nF
15
27
41
Ta=−40°C to +85°C
⎯
±0.7
±2.8
ms
mV
/°C
8.600
8.700
8.800
V
VIN=1.3 V
VIN=2.4 V
0.25
1.50
0.60
2.60
⎯
⎯
mA
4
VIN=3.6 V
3.00
4.50
⎯
⎯
0.085
⎯
⎯
0.1
0.215
μA
V
2
⎯
4
8
μA
5
VIN=7 V, IOUT=30 mA,
Ta=−40°C to +85°C
V
1
mV
Voltage Detector
Operating voltage
Delay time*1
Release voltage vs
Temperature
Release voltage
(Overcharge detection
voltage)
Sink current
Leakage current
Hysteresis width
Total
Current consumption*2
⎯
Vopr
tpd
Δ + VDET
ΔTa
+VDET
IDOUT
ILEAK
VHYS
ISS
⎯
Nch,
VDS=0.5 V
Nch, VDS=24 V, VIN=15 V
⎯
VIN=7 V, Unloaded
*1. tpd (ms)=(3.18min., 5.74typ., 8.73max.)×CD(nF)
*2. Excluding the charging current of CD.
24
Seiko Instruments Inc.
2
3
2
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00
S-87x Series
Measurement Circuits
2.
1.
VIN
VOUT
(SENSE)
VIN
(SENSE)
CL
( VPF)
VSS
A
( VPF)
V
VOUT
100 kΩ
VOR
VSS
Figure 8
V
Figure 9
4.
3.
VOUT
VIN
VOUT
100 kΩ
VIN
(SENSE)
VOR
VSS
( VPF)
CD
CD
VOR
A
VSS
Figure 10
V
Figure 11
6.
5.
A
VIN
VIN
(SENSE)
VSS
VOUT
RL=1 MΩ
(SENSE)
( VPF)
( VPF )
VSS
Figure 12
V
Figure 13
7.
VIN
A
SENSE
VSS
Figure 14
Seiko Instruments Inc.
25
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00
S-87x Series
Operation Timing Charts
1. Voltage regulator (C/G type)
VIN [V]
VSS
t [s]
VOUT [V]
*2
VSS
*1
*1
t1
t [s]
t2
VPF [V]
H
L
t [s]
VSS
*1. Indicates shutdown state. When the load current (IOUT) is less than 1 μA, the output voltage (VOUT) is
not always VSS level.
*2. When the VOUT is shorted at t1, VOUT becomes VSS level. When the short of VOUT is removed at t2,
VOUT returns to normal output.
Figure 15
2. Voltage detector (A/B/F type)
VIN or VOUT [V]
VHYS
+VDET
−VDET
t [s]
VOR [V]
tpd*1
tpd*1
tpd*1
t [s]
*1. Output delay time (tpd) of the voltage detector can be changed with an external capacitance value to
CD pin. Delay circuit is not included in C/E/G type.
Remark Pull up VOR through a resistor to VIN or VOUT.
Figure 16
26
Seiko Instruments Inc.
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00
S-87x Series
3. When using the SENSE pin (E type)
VIN=VSENSE*1 [V]
+VDET
−VDET
t [s]
VOUT [V]
t [s]
VOR [V]
t [s]
*1. The SENSE pin is connected to VIN pin.
Remark Pull up VOR through a resistor to VOUT.
Figure 17
Explanation of Terms
1. I/O voltage difference (Vdif)
Vdif=VIN1−VOUT1
VOUT1: Initial output voltage
VIN1: Input voltage which generates an output voltage (VOUT2) decreased by 5 % from VOUT1
2. Load regulation (ΔVOUT2)
ΔVOUT2=VOUT1−VOUT2
VOUT1: Output voltage when IOUT is 50 μA
VOUT2: Output voltage when IOUT is 40 mA
3. Line regulation (ΔVOUT1)
ΔVOUT1=VOUT1−VOUT2
VOUT1: Output voltage when VIN is 24 V
VOUT2: Output voltage when VIN is (VOUT+1) V
4. Hysteresis width (VHYS)
VHYS=(+VDET)−(−VDET)
+VDET: Release voltage
−VDET: Detection voltage
Seiko Instruments Inc.
27
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00
S-87x Series
Operation
1. Reference voltage circuit
The reference voltage circuit operates all the time when the voltage is applied to VIN pin and is not
affected by the VPF signal.
2. Voltage regulator
Figure 18 shows the voltage regulator circuit. The S-87x Series has a Pch MOS transistor as the output
control transistor.
Reverse current may break IC if VOUT potential is higher than VIN, because a parasitic diode is formed
between VIN and VOUT due to the structure of the control transistor. Therefore, keep VOUT lower than
VIN+0.3 V.
The output voltage of the voltage regulator can be selected as follows:
2.5 V to 5.8 V±2.4 % (0.1 V step)
VIN
VREF
−
M1
*1
+
VOUT
R1
R2
*1. Parasitic diode
Figure 18 Voltage regulator circuit
Caution For an application with a load current of less than 1 μA, the leakage current of the control
transistor M1 increases the output voltage.
3. Short-circuit protection circuit
The S-87x Series has a built-in short-circuit protection circuit to protect the element from break caused by
a large current in case of a short circuit. The output short current is internally limited to approx. 70 mA.
Short-circuit protection circuit has three kinds characteristics according to input voltage (VIN) as shown in
Figure 19 to 21.
At 5 V Output:
(a) VIN/VOUT≥2.0
(b) 1.5≤VIN/VOUT
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