S-816 Series S-816 Series consists external transistor type posit
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EXTERNAL TRANSISTOR TYPE VOLTAGE REGULATOR
S-816 Series
S-816 Series consists external transistor type positive voltage regulators, which have been developed using CMOS process. These voltage regulators incorporate overcurrent protection, shutdown function. drop-out type regulator with output current ranging from several hundreds configured with transistor driven this Despite features S-816, which current consumption, improvement transient response characteristics with newly deviced phase compensation circuit made possible employ products S-816 Series even applications where heavy input variation load variation experienced. S-816 Series regulators serve ideal power supply units portable devices when coupled with SOT-23-5 minipackage, providing numerous outstanding features, including current consumption. Since this series accommodate input voltage also suitable when operating adapter.
Features
current consumption Operation mode: typ., max. Shutdown mode: max. Input voltage range: max. Output voltage accuracy: 2.0% Output voltage range: Selectable between steps With shutdown function. built-in current source eliminates need base-emitter resistance. With overcurrent (base current) protection function.
Applications
Power supplies on-board such battery devices portable telephones, electronic notebooks, PDAs. Constant voltage power supplies cameras, video equipment portable communications equipment. Power Supplies CPUs. Post-Regulators Switching Regulators. Main Regulators Multiple-Power Supply Systems.
Package
SOT-23-5 (Package drawing code: MP005-A)
Seiko Instruments Inc.
EXTERNAL TRANSISTOR TYPE VOLTAGE REGULATOR S-816 Series Block Diagram
VOUT
Current Source
Pull-Up
Overcurrent Protection Circuit
VREF
Error Amplifier
Sink Driver
Remark ensure power cutoff external transistor when device powered down, output pulled pull-up resistance (approx. inside diode inside parasitic diode. Figure
Seiko Instruments Inc.
Rev.4.1_10 Product Code Structure
Product Name S-816A
EXTERNAL TRANSISTOR TYPE VOLTAGE REGULATOR S-816 Series
direction tape specifications Product name (abbreviation) Package name (abbreviation) SOT-23-5 Output voltage (2.5
Product Name List Table Output Voltage V±2.0% V±2.0% V±2.0% V±2.0% V±2.0% V±2.0% V±2.0% V±2.0% V±2.0% V±2.0% V±2.0% V±2.0% V±2.0% V±2.0% V±2.0% V±2.0% V±2.0% V±2.0%
Output Voltage V±2.0% V±2.0% V±2.0% V±2.0% V±2.0% V±2.0% V±2.0% V±2.0% V±2.0% V±2.0% V±2.0% V±2.0% V±2.0% V±2.0% V±2.0% V±2.0% V±2.0% V±2.0%
Product Name S-816A25AMC-BAA-T2 S-816A26AMC-BAB-T2 S-816A27AMC-BAC-T2 S-816A28AMC-BAD-T2 S-816A29AMC-BAE-T2 S-816A30AMC-BAF-T2 S-816A31AMC-BAG-T2 S-816A32AMC-BAH-T2 S-816A33AMC-BAI-T2 S-816A34AMC-BAJ-T2 S-816A35AMC-BAK-T2 S-816A36AMC-BAL-T2 S-816A37AMC-BAM-T2 S-816A38AMC-BAN-T2 S-816A39AMC-BAO-T2 S-816A40AMC-BAP-T2 S-816A41AMC-BAQ-T2 S-816A42AMC-BAR-T2
Product Name S-816A43AMC-BAS-T2 S-816A44AMC-BAT-T2 S-816A45AMC-BAU-T2 S-816A46AMC-BAV-T2 S-816A47AMC-BAW-T2 S-816A48AMC-BAX-T2 S-816A49AMC-BAY-T2 S-816A50AMC-BAZ-T2 S-816A51AMC-BBA-T2 S-816A52AMC-BBB-T2 S-816A53AMC-BBC-T2 S-816A54AMC-BBD-T2 S-816A55AMC-BBE-T2 S-816A56AMC-BBF-T2 S-816A57AMC-BBG-T2 S-816A58AMC-BBH-T2 S-816A59AMC-BBI-T2 S-816A60AMC-BBJ-T2
Seiko Instruments Inc.
EXTERNAL TRANSISTOR TYPE VOLTAGE REGULATOR S-816 Series Configuration
SOT-23-5 view Table Symbol VOUT
Description Output Base-Current Control Shutdown ("H" active) Power Supply Output Voltage Monitoring
Figure
Absolute Maximum Ratings
Table Item Voltage VOUT Voltage Voltage Voltage Current Power Dissipation Operating Temperature Range Storage Temperature Range Symbol VOUT VON/OFF VEXT IEXT Topr Tstg (Ta=25°C unless otherwise specified) Absolute Maximum Ratings Unit VSS-0.3 VSS+18 VSS-0.3 VSS+18 VSS-0.3 VSS+18 VSS-0.3 VIN+0.3 +125
Caution absolute maximum ratings rated values exceeding which product could suffer physical damage. These values must therefore exceeded under conditions.
Seiko Instruments Inc.
Rev.4.1_10 Electrical Characteristics
EXTERNAL TRANSISTOR TYPE VOLTAGE REGULATOR S-816 Series
Table Item Input Voltage Output Voltage Maximum Output Current (PNP Output) Drop-Out Voltage Load Regulation (PNP Output) Line Regulation (PNP Output)
Symbol VOUT Vdrop VOUT VOUT VOUT VOUT ISTB ISRC ISINK IOFF IMAX
Conditions =VOUT IOUT VON/OFF ="H" IOUT =100 =VOUT IOUT
(Ta=25°C unless otherwise specified) Test Min. Typ. Max. Unit circuit VOUT VOUT VOUT 0.01 ±0.15 0.50 0.15 1.00 -0.1 mV/°C
IOUT VOUT -0.15 =VOUT IOUT VON/OFF ="H", Ta=-40 85°C =VOUT VON/OFF ="H" VON/OFF ="L" =VOUT VON/OFF ="H", VEXT =VOUT, VOUT =VOUT VON/OFF ="L" =VOUT VON/OFF ="H", VOUT =VOUT =VEXT =VOUT VOUT VON/OFF ="L" =VEXT VON/OFF ="H", VOUT =VOUT =VOUT VOUT Check VEXT ="L" =VOUT VOUT Check VEXT ="H" VON/OFF =VOUT VON/OFF 0.25
Output Voltage Temperature Coefficient Current Consumption during Operation Current Consumption during Shutdown Output Source Constant Current Output Pull-Up Resistance Output Sink Current Leakage Current during Output Output Sink Overcurrent Value Shutdown Input Voltage
Shutdown Input Current
characteristics vary with associated external components. characteristics given above those obtained when combined with Toshiba Corporation 2SA1213-Y transistor tantalum capacitor output capacitor (CL).
Seiko Instruments Inc.
EXTERNAL TRANSISTOR TYPE VOLTAGE REGULATOR S-816 Series Test Circuits
VOUT
VOUT
Figure
Figure
VOUT
Figure
Seiko Instruments Inc.
Rev.4.1_10 Operation
Basic Operation
EXTERNAL TRANSISTOR TYPE VOLTAGE REGULATOR S-816 Series
Figure shows block diagram S-816 Series. device compares voltage which obtained from dividing output voltage VOUT feedback resistances with reference voltage VREF through error amplifier, output which controls sink driver. regulating base current external transistor, maintains constant output voltage that susceptible input voltage variation temperature variation.
VOUT
Current Source
Overcurrent Protection Circuit
VREF
ON/OFF
Error Amplifier
Sink Driver
Figure Internal Circuits 2.1. Shutdown Pin) This activates deactivates regulating operation. When shutdown "L", voltage appears through pin, prodding external transistor off. internal circuits stop working, substantial savings current consumption achieved accordingly. this condition, pulled pull-up resistance (approx. inside order ensure power external transistor. shutdown configured shown Figure Since neither pull-up pull-down performed internally, please avoid using floating state. Also, sure refrain from applying voltage this lest current consumption increase. When this shutdown used, leave coupled pin. Table Shutdown Internal Circuit Activated Deactivated Voltage VIN-VBE VOUT Voltage value Hi-Z
Figure
Seiko Instruments Inc.
EXTERNAL TRANSISTOR TYPE VOLTAGE REGULATOR S-816 Series
2.2. Overcurrent Protection Circuit
overcurrent protection function S-816 Series monitors sink current (base current external transistor) with overcurrent protection circuit incorporated limits that current (EXT sink current). load current increases, sink current (base current external transistor) also grows larger maintain output voltage. overcurrent protection circuit clamps limits sink current output sink overcurrent value (IMAX) order prevent from increasing beyond that value. load current which overcurrent protection function works represented following equation: IOUT_MAX IMAX this case, amplification factor external transistor. IOUT_MAX represents maximum output current this regulator. attempted obtain higher load current, output voltage will fall. Note that within overcurrent protection function this external transistor able protected from collector overcurrents produced EXT-GND short-circuiting other phenomenon occurring outside protect external transistor from such collector overcurrents, will necessary choose transistor with larger power dissipation than IOUT_MAX VIN, external overcurrent protection circuit. With regard this external overcurrent protection circuit, refer "Overcurrent Protection Circuit" Application Circuits". 2.3. Phase Compensation Circuit S-816 Series performs phase compensation with phase compensation circuit, incorporated (Equivalent Series Resistance) output capacitor, secure stable operation even presence output load variation. uniquely devised phase compensation circuit resulted improved transient response characteristics while preserving same feature current consumption. This feature allows used applications where input variation load variation heavy. Because S-816 Series designed perform phase compensation, utilizing output capacitor, such output capacitor (CL) should always placed between VOUT VSS. Since each capacitor employed optimum range their characteristics, sure choose components with your attention. details, refer Selection Associated External Components".
Seiko Instruments Inc.
EXTERNAL TRANSISTOR TYPE VOLTAGE REGULATOR S-816 Series
Selection Associated External Components
External Transistor Select external transistor according conditions input voltage, output voltage, output current. low-saturation voltage transistor with "hFE" ranging from will suitable this parameters selection external transistor include maximum collector-base voltage, maximum collector-emitter voltage, amplification factor (hFE), maximum collector current collector dissipation. maximum collector-base voltage maximum collector-emitter voltage determined input voltage range each specific application employed. select transistor with input voltage least several volts higher than expected maximum input voltage. amplification factor (hFE) affects maximum output current that supplied load. With internal overcurrent protection circuit this base current clamped, will exceed overcurrent value (IMAX). Select transistor which capable delivering required maximum output current intended application, with maximum collector current. (Refer Overcurrent Protection Circuit") Likewise, select transistor, based maximum output current difference between input output voltages, with attention collector dissipation. Output Capacitor (CL) S-816 Series performs phase compensation internal phase compensation circuit (Equivalent Series Resistance) output capacitor secure stable operation even presence output load variation. Therefore, always place capacitor (CL) more between VOUT VSS. stable operation S-816 Series, essential employ capacitor with having optimum range. Whether larger smaller than that optimum range (approximately this could produce unstable output, cause possibility oscillations. this reason, tantalum electrolytic capacitor recommended. When ceramic capacitor capacitor having selected, will necessary connect additional resistance that serves series with output capacitor, illustrated Figure resistance value that needs added will from this value vary depends service conditions, should defined through careful evaluation advance. general, recommendation aluminum electrolytic capacitor tends produce oscillations increases temperature. Beware this case. When this type capacitor employed, make thorough evaluation including temperature characteristics.
VOUT
S-816 Series
Figure Caution above connection diagram constant will guarantee successful operation. Perform through evaluation using actual application constant. Seiko Instruments Inc.
EXTERNAL TRANSISTOR TYPE VOLTAGE REGULATOR S-816 Series Standard Circuit
VOUT
Current Source
Pull-Up
VREF
Error Amplifier
Overcurrent Protection Circuit
Sink Driver
Figure Caution above connection diagram does guarantee correct operation. Perform sufficient evaluation using actual application constant.
Seiko Instruments Inc.
Rev.4.1_10 Precautions
EXTERNAL TRANSISTOR TYPE VOLTAGE REGULATOR S-816 Series
overcurrent protection function this detects limits sink current inside Therefore, does work collector overcurrents which caused EXT-GND shortcircuiting other phenomenon outside protect external transistor from collector overcurrents perfectly, necessary provide another external overcurrent protection circuit. This performs phase compensation using internal phase compensator circuit output capacitor. Therefore, always place capacitor more between VOUT VSS. tantalum type capacitor recommended this purpose. Moreover, secure stable operation S-816 Series, will necessary employ capacitor having (Equivalent Series Resistance) covered certain optimum range (0.1 Whether larger smaller than that optimum range, this could result unstable output, cause possibility oscillations. Select capacitor through careful evaluation made according actual service conditions. apply electrostatic discharge this that exceeds performance ratings built-in electrostatic protection circuit. Make sure that power dissipation inside output sink current (especially high temperature) will surpass power dissipation package.
Power Dissipation (mW)
(°C) Ambient Temperature
Figure Power Dissipation SOT-23-5 Package (When Mounted) claims responsibility disputes arising connection with infringement products including this patents owned third party.
Seiko Instruments Inc.
EXTERNAL TRANSISTOR TYPE VOLTAGE REGULATOR S-816 Series Application Circuits
Overcurrent Protection Circuit
Figure shows sample overcurrent protection implemented with external circuit connected. internal overcurrent protection function S-816 Series designed detect sink current (base current transistor) pin, therefore able protect external transistor from collector overcurrents caused EXT-GND short-circuiting other phenomenon occurring outside This sample circuit activates regulator intermittently against collector overcurrents, thereby suppressing heat generation external transistor. duty on-time off-time intermittent operation regulated through external component. 2SA1213Y VOUT
0.22 Figure
S-816 Series
0.22
Caution above connection diagram constant will guarantee successful operation. Perform through evaluation using actual application constant.
S-816A30AMC (VIN S-816A30AMC (VIN
Load Current (0.5 A/div)
Load Current (0.5 A/div)
VON/OFF V/div) ms/div)
VON/OFF V/div) (100 µs/div)
Figure Output Current Waveforms during Intermittent Operation Prompted Load Short-Circuiting detection overcurrent done sense resistance (RS) transistor (Tr1). When comes triggered voltage drop transistor (Tr2) also comes according time constants capacitor (C2) resistance (R2). This causes shutdown turn level, regulating operation stop, interrupting current load. When load current off, voltage drop stops. This makes again, also makes transistor (Tr2) off. this condition, shutdown returns level, according time constants capacitor (C1) resistance (R1). This delay time which shutdown returns level from level time which load current remains off.
Seiko Instruments Inc.
EXTERNAL TRANSISTOR TYPE VOLTAGE REGULATOR S-816 Series
overcurrent flows again after shutdown assumed level following delay time regulating operation been restarted, circuit will again suspend regulating operation resume intermittent operation. This intermittent operation will continued till overcurrentt eliminated, once theovercurrent disappears, normal operation will restored. overcurrent detection value (IOUT_MAX) represented following equation: IOUT_MAX |VBE1| this case, denotes resistance value sense resistance, VBE1 denotes base-emitter saturation voltage Tr1. transistor (Tr1) transistor (Tr2), select those small-signal type that offer sufficient withstand voltage against input voltage (VIN). on-time (tON) off-time (tOFF) intermittent operation broadly expressed following equations: VBE2 VBE1 tOFF this case, VBE2 denotes base-emitter saturation voltage Tr2, denotes input voltage, denotes inversion voltage ("L""H") shutdown pin. on-time value that does cause overcurrent protection activated rush current load capacitor. Then, compute ratio between on-time off-time from maximum input voltage appropriate application power dissipation external transistor, decide off-time with reference on-time established earlier. Take equation above rough guide, because actual on-time (tON) off-time (tOFF) should defined checked using utilizing components. External Adjustment Output Voltage S-816 Series allows adjust output voltage value over output voltage range products this series, when external resistances capacitor added, illustrated Figure Moreover, temperature gradient obtained inserting thermistor other element series with external resistances
Error amplifier
VOUT
VREF
Figure S-816 Series internal impedance resulting from between VOUT pin, shown Figure Therefore, influence internal resistances (R1, taken into consideration defining output voltage (OUT). output voltage (OUT) expressed following equation: VOUT VOUT "//" denotes combined resistance parallel. this case, VOUT output voltage value S-816 Series, resistance values external resistances, resistance value (R1+R2) internal resistances Seiko Instruments Inc.
EXTERNAL TRANSISTOR TYPE VOLTAGE REGULATOR S-816 Series
accuracy output voltage (OUT) determined absolute accuracy external connecting resistances output voltage accuracy (VOUT ±2.0%) S-816 Series, deviations absolute value internal resistance (RI) maximum value (OUTmax) minimum value (OUTmin) output voltage (OUT), including deviations, expressed following equations: OUTmax VOUT 1.02 VOUT 1.02 RAmax RBmin RImin OUTmin VOUT 0.98 VOUT 0.98 RAmin RBmax RImax Where RAmax, RAmin, RBmax RBmin denote maximum minimum absolute accuracy external resistances RImax RImin denote maximum minimum deviations absolute value internal resistance (RI) respectively. deviations absolute value internal resistance (RI) vary with output voltage value S-816 Series, broadly classified follows: Output voltage (VOUT) Output voltage (VOUT) Output voltage (VOUT) Output voltage (VOUT) Output voltage (VOUT) 3.29 21.78 3.29 20.06 2.23 18.33 2.23 16.61 2.25 14.18
value given equation shown below taken calculating output voltage (OUT), median voltage deviation output voltage (OUT) will obtained. (Maximum value internal resistance (Minimum value internal resistance closer output voltage (OUT) output voltage value (VOUT) brought each other, more accuracy output voltage (OUT) remains immune deviations absolute accuracy external resistances (RA, absolute value internal resistance (RI) particular, suppress influence deviations internal resistance (RI), resistance values external resistances (RA, need limited much smaller value than that internal resistance (RI). However, since reactive current flows through external resistances (RA, RB), there tradeoff between accuracy output voltage (OUT) reactive current. This should taken into consideration, according requirements intended application. Note that when larger value (more than taken external resistances (RA, RB), vulnerable external noise. Check influence this value well with actual application. Furthermore, capacitor parallel external resistance order avoid output oscillations other types instability. (Refer Figure Make sure that capacitance value larger than value given following equation: CC[F] RA[] 6000 Caution above connection diagram constant will guarantee successful operation. Perform through evaluation using actual application constant.
Seiko Instruments Inc.
Rev.4.1_10 Typical Characteristics
EXTERNAL TRANSISTOR TYPE VOLTAGE REGULATOR S-816 Series
Input Voltage (VIN) Output Voltage (VOUT) Characteristics
VIN-VOUT S-816A30AMC (IOUT=50
3.10 3.08 3.06 3.04 VOUT 3.00 2.98 2.96 2.94 2.92 2.90 3.02
VIN-VOUT S-816A50AMC (IOUT=50
5.10 5.08
Ta=25°C Ta=-40°C
5.06 5.04 5.02 VOUT 5.00 4.98
Ta=25°C Ta=85°C
Ta=85°C
4.96 4.94 4.92 4.90
Ta=-40°C
VIN-VOUT S-816A30AMC (Ta=25°C)
3.10 3.05 3.00 VOUT 2.95 2.90 2.85 2.80
VIN-VOUT S-816A50AMC (Ta=25°C)
5.10 5.05 5.00 VOUT 4.95
IOUT=500 IOUT=100 IOUT=1
4.90
IOUT=1
4.85 4.80
IOUT=500 IOUT=100 IOUT=1
IOUT=1
Output Current (IOUT) Output Voltage (VOUT) Characteristics
IOUT-VOUT S-816A30AMC (VIN=4
3.10 3.08 3.06 3.04 3.02 VOUT 3.00 2.98 2.96 2.94 2.92 2.90 IOUT (mA)
IOUT-VOUT S-816A50AMC (VIN=6
5.10 5.08
Ta=25°C Ta=-40°C
5.06 5.04 5.02 VOUT 5.00 4.98 4.96 4.94 4.92 4.90 IOUT (mA)
Ta=25°C Ta=85°C
Ta=85°C
1000
Ta=-40°C
1000
Seiko Instruments Inc.
EXTERNAL TRANSISTOR TYPE VOLTAGE REGULATOR S-816 Series
Temperature (Ta) Output Voltage (VOUT) Characteristics
Ta-VOUT S-816A30AMC (VIN=4 IOUT=50
3.10 3.08 3.06 3.04 VOUT 3.00 2.98 2.96 2.94 2.92 2.90 (°C) 3.02
Ta-VOUT S-816A50AMC (VIN=6 IOUT=50
5.10 5.08 5.06 5.04 5.02 VOUT 5.00 4.98 4.96 4.94 4.92 4.90 (°C)
Input Voltage (VIN) Consumption Current (ISS) Characteristics
VIN-ISS S-816A30AMC (VON/OFF="H")
(µA)
Ta=85°C Ta=25°C
Ta=-40°C
Input Voltage (VIN) Output Sink Overcurrent Value (IMAX) Characteristics
VIN-IMAX S-816A30AMC
IMAX (mA)
Ta=85°C
Ta=25°C
Ta=-40°C
Seiko Instruments Inc.
EXTERNAL TRANSISTOR TYPE VOLTAGE REGULATOR S-816 Series
Input Voltage (VIN) Shutdown Input Voltage (VSH, VSL) Characteristics
VIN-VSH S-816A30AMC
VIN-VSL S-816A30AMC
Ta=85°C
Ta=25°C
Ta=-40°C Ta=25°C Ta=85°C
Ta=-40°C
Seiko Instruments Inc.
EXTERNAL TRANSISTOR TYPE VOLTAGE REGULATOR S-816 Series Transient Response Characteristics (Typical Data)
Input Transient Response Characteristics (Power-on VIN=0 VOUT+1 IOUT=0 CL=10
S-816A30AMC (VIN S-816A50AMC (VIN
V/div) V/div)
VOUT V/div) (100 µs/div)
VOUT V/div) (100 µs/div)
Input Transient Response Characteristics (Supply voltage variation VIN=VOUT+1 VOUT+2 CL=10
S-816A30AMC (IOUT S-816A30AMC (IOUT =300
(0.5 V/div)
(0.5 V/div)
VOUT mV/div)
VOUT mV/div)
(100 µs/div)
(100 µs/div)
S-816A50AMC (IOUT
S-816A50AMC (IOUT =300
(0.5 V/div)
(0.5 V/div)
VOUT mV/div)
VOUT mV/div)
(100 µs/div)
(100 µs/div)
Seiko Instruments Inc.
EXTERNAL TRANSISTOR TYPE VOLTAGE REGULATOR S-816 Series
Load Transient Response Characteristics (Power-on IOUT=1 CL=10
S-816A30AMC (VIN
IOUT mA/div)
S-816A30AMC (VIN
IOUT mA/div)
VOUT mV/div)
VOUT mV/div)
µs/div)
µs/div)
S-816A50AMC (VIN
IOUT mA/div)
S-816A50AMC (VIN
IOUT mA/div)
VOUT mV/div)
VOUT mV/div)
µs/div)
µs/div)
Shutdown Transient Response Characteristics (VON/OFF=0 VIN, IOUT=0 CL=10
S-816A30AMC (VIN S-816A50AMC (VIN
VON/OFF V/div) VON/OFF V/div)
VOUT V/div) (100 µs/div)
VOUT V/div) (100 µs/div)
Seiko Instruments Inc.
2.9±0.2 1.9±0.2
0.16 -0.06
+0.1
0.95±0.1 0.4±0.1
MP005-A-P-SD-1.2
TITLE SCALE UNIT
SOT235-A-PKG Dimensions MP005-A-P-SD-1.2
Seiko Instruments Inc.
4.0±0.1(10 pitches:40.0±0.2)
+0.1
2.0±0.05
0.25±0.1
+0.2
4.0±0.1 1.4±0.2
3.2±0.2
Feed direction
MP005-A-C-SD-2.1
TITLE SCALE UNIT
SOT235-A-Carrier Tape MP005-A-C-SD-2.1
Seiko Instruments Inc.
12.5max.
Enlarged drawing central part
9.0±0.3
(60°)
(60°)
MP005-A-R-SD-1.1
TITLE SCALE UNIT
SOT235-A-Reel MP005-A-R-SD-1.1
QTY. 3,000
Seiko Instruments Inc.
information described herein subject change without notice. Seiko Instruments Inc. responsible problems caused circuits diagrams described herein whose related industrial properties, patents, other rights belong third parties. application circuit examples explain typical applications products, guarantee success specific mass-production design. When products described herein regulated products subject Wassenaar Arrangement other agreements, they exported without authorization from appropriate governmental authority. information described herein other purposes and/or reproduction copying without express permission Seiko Instruments Inc. strictly prohibited. products described herein cannot used part device equipment affecting human body, such exercise equipment, medical equipment, security systems, equipment, apparatus installed airplanes other vehicles, without prior written permission Seiko Instruments Inc. Although Seiko Instruments Inc. exerts greatest possible effort ensure high quality reliability, failure malfunction semiconductor products occur. user these products should therefore give thorough consideration safety design, including redundancy, fire-prevention measures, malfunction prevention, prevent accidents, fires, community damage that ensue.
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