S-8254A Series S-8254A series protection 3-serial- 4serial-cell l

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S-8254A Series S-8254A series protection 3-serial- 4serial-cell l

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BATTERY PROTECTION 3-SERIAL- 4-SERIAL-CELL PACK
S-8254A Series
S-8254A series protection 3-serial- 4serial-cell lithium-ion lithium polymer rechargeable batteries includes high-accuracy voltage detector delay circuit. S-8254A series protects both 3-serial 4-serial cells using switching.
Features
High-accuracy voltage detection each cell Overcharge detection voltage steps) Accuracy Accuracy Overcharge release voltage Overdischarge detection voltage (100 steps) Accuracy Accuracy Overdischarge release voltage Three-level overcurrent protection Overcurrent detection voltage 0.05 0.30 steps) Accuracy Overcurrent detection voltage Accuracy Accuracy Overcurrent detection voltage VVC1 Delay times overcharge detection, overdischarge detection overcurrent detection external capacitors (delay times overcurrent detection fixed internally). Switchable between 3-serial cell 4-serial cell using Charge/discharge operation controlled control pins. Withstanding voltage element Absolute maximum rating Wide operating voltage range Wide operating temperature range 85°C current consumption Operation mode max. 25°C) Power-down mode max. 25°C) (10) Lead-free products Overcharge hysteresis voltage selected from range steps. (Overcharge hysteresis voltage Overcharge detection voltage Overcharge release voltage) Overdischarge hysteresis voltage selected from range steps. (Overdischarge hysteresis voltage Overdischarge release voltage Overdischarge detection voltage)
Applications
Lithium-ion rechargeable battery packs Lithium polymer rechargeable battery packs
Package
Package Name 16-Pin TSSOP Package FT016-A Drawing Code Tape FT016-A Reel FT016-A
Seiko Instruments Inc.
BATTERY PROTECTION 3-SERIAL- 4-SERIAL-CELL PACK S-8254A Series Block Diagram
DOP, COP, RVMD, RVMS Control Circuit Delay Circuit Delay Circuit Delay Circuit
Delay Circuit
VINI
Remarks Diodes figure parasitic diodes. Numerical values typical values. Figure
Seiko Instruments Inc.
BATTERY PROTECTION 3-SERIAL- 4-SERIAL-CELL PACK S-8254A Series
Product Name Structure
Product Name S-8254A direction tape specifications Package code 16-Pin TSSOP Serial code Sequentially from Refer taping specifications this book. Refer Product Name List". Product Name List Table Overcharge Overcharge Overdischarge Overdischarge Overcurrent battery detection voltage release voltage detection voltage release voltage detection voltage charge function [VCU] [VCL] [VDL] [VDU] [VIOV1] Available S-8254AAAFT-TB-G 4.350 0.025 4.150 0.050 2.00 0.080 2.70 0.100 0.30 0.025 Available S-8254AABFT-TB-G 4.250 0.025 4.250 0.025 2.00 0.080 2.70 0.100 0.30 0.025 Available S-8254AAEFT-TB-G 4.350 0.025 4.150 0.050 2.00 0.080 2.70 0.100 0.20 0.025 Available S-8254AAFFT-TB-G 4.350 0.025 4.150 0.050 2.40 0.080 3.00 0.100 0.20 0.025 Available S-8254AAGFT-TB-G 4.275 0.025 4.075 0.050 2.30 0.080 2.70 0.100 0.13 0.025 Available S-8254AAHFT-TB-G 4.350 0.025 4.150 0.050 2.40 0.080 2.70 0.100 0.10 0.025 Available S-8254AAIFT-TB-G 4.350 0.025 4.150 0.050 2.40 0.080 3.00 0.100 0.30 0.025 Available S-8254AAJFT-TB-G 4.350 0.025 4.150 0.050 2.40 0.080 3.00 0.100 0.15 0.025 Available S-8254AAKFT-TB-G 4.350 0.025 4.150 0.050 2.70 0.080 3.00 0.100 0.20 0.025 Available S-8254AALFT-TB-G 4.300 0.025 4.150 0.050 2.40 0.080 3.00 0.100 0.20 0.025 Available S-8254AAMFT-TB-G 4.200 0.025 4.100 0.050 2.50 0.080 2.70 0.100 0.30 0.025 Available S-8254AANFT-TB-G 4.250 0.025 4.150 0.050 2.50 0.080 3.00 0.100 0.10 0.025 Available S-8254AAOFT-TB-G 4.300 0.025 4.080 0.050 2.50 0.080 3.00 0.100 0.10 0.025 Available S-8254AAPFT-TB-G 4.280 0.025 4.130 0.050 3.00 0.080 3.00 0.080 0.15 0.025 Available S-8254AAQFT-TB-G 3.900 0.025 3.800 0.050 2.30 0.080 2.70 0.100 0.30 0.025 Available S-8254AARFT-TB-G 4.350 0.025 4.150 0.050 2.80 0.080 3.00 0.100 0.20 0.025 Available S-8254AASFT-TB-G 4.290 0.025 4.090 0.050 2.30 0.080 3.00 0.100 0.075 0.025 Available S-8254AATFT-TB-G 4.200 0.025 4.200 0.025 2.00 0.080 2.70 0.100 0.30 0.025 Unavailable S-8254AAUFT-TB-G 4.350 0.025 4.150 0.050 2.40 0.080 3.00 0.100 0.20 0.025 Available S-8254AAVFT-TB-G 4.250 0.025 4.150 0.050 2.70 0.080 3.00 0.100 0.20 0.025 Unavailable S-8254AAWFT-TB-G 4.250 0.025 4.100 0.050 3.00 0.080 3.20 0.100 0.10 0.025 Available S-8254AAXFT-TB-G 4.250 0.025 4.100 0.050 2.00 0.080 2.70 0.100 0.15 0.025 Available S-8254AAYFT-TB-G 4.275 0.025 4.125 0.050 2.40 0.080 2.70 0.100 0.10 0.025 Available S-8254AAZFT-TB-G 4.250 0.025 4.150 0.050 2.00 0.080 2.70 0.100 0.13 0.025 Available S-8254ABAFT-TB-G 3.900 0.025 3.800 0.050 2.00 0.080 2.50 0.100 0.15 0.025 Available S-8254ABBFT-TB-G 4.200 0.025 4.200 0.050 2.50 0.080 3.20 0.100 0.30 0.025 Remark Please contact sales office products with detection voltage value other than those specified above. Product name Item
Seiko Instruments Inc.
BATTERY PROTECTION 3-SERIAL- 4-SERIAL-CELL PACK S-8254A Series Configuration
16-Pin TSSOP view VINI
Figure Table Description Connection charge control gate (Nch open-drain output) Voltage detection between (Overcurrent detection pin) Connection discharge control gate (CMOS output) Voltage detection between VINI (Overcurrent detection pin) Capacitor connection overdischarge detection, Overcurrent detection delay Capacitor connection overcharge detection delay Negative power supply input, Negative voltage connection battery connection connection switching 3-serial cell 4-serial cell level 3-serial cell, level 4-serial Control charge discharge Connection negative voltage battery Positive voltage battery Connection negative voltage battery Positive voltage battery Connection negative voltage battery Positive voltage battery Connection positive voltage battery Connection positive power supply input, Positive voltage battery electrically open. connected VSS. Symbol VINI
Seiko Instruments Inc.
BATTERY PROTECTION 3-SERIAL- 4-SERIAL-CELL PACK S-8254A Series
Absolute Maximum Ratings
Table Item Input voltage between Input voltage Symbol Applied 25°C unless otherwise specified) Absolute Maximum Ratings Unit
VC1, VC2, VC3, VC4, CTL, SEL, CCT, CDT, VINI input voltage VVMP output voltage VDOP output voltage VCOP Power dissipation Operating ambient temperature Topr Storage temperature Tstg Caution absolute maximum ratings rated values exceeding which product could suffer physical damage. These values must therefore exceeded under conditions.
Seiko Instruments Inc.
BATTERY PROTECTION 3-SERIAL- 4-SERIAL-CELL PACK S-8254A Series Electrical Characteristics
Table Item DETECTION VOLTAGE Overcharge detection voltage Overcharge release voltage Symbol Conditions
25°C unless otherwise specified) Test Min. Typ. Max. Unit circuit VCUn 0.025 VCLn 0.05 VCLn 0.025 VDLn 0.08 VDUn 0.10 VDUn 0.08 VIOV1 0.025 VVC1 VCUn VCLn VCLn VDLn VDUn VDUn VIOV1 VVC1 VCUn 0.025 VCLn 0.05 VCLn 0.025 VDLn 0.08 VDUn 0.10 VDUn 0.08 VIOV1 0.025 VVC1
VCUn VCLn
Adjustable Adjustable
Overdischarge detection voltage Overdischarge release voltage
VDLn VDUn
Adjustable Adjustable
Overcurrent detection voltage Overcurrent detection voltage Overcurrent detection voltage
VIOV1 VIOV2 VIOV3
0.05 Adjustable 50°C 50°C capacitance capacitance capacitance gate capacitance 2000 battery charging available battery charging unavailable
Temperature coefficient TCOE1 Temperature coefficient TCOE2 DELAY TIME Overcharge detection delay time Overdischarge detection delay time Overcurrent detection tIOV1 delay time Overcurrent detection tIOV2 delay time Overcurrent detection tIOV3 delay time BATTERY CHARGE FUNCTION battery charge V0CHA starting charger voltage battery charge V0INH inhibition battery voltage INTERNAL RESISTANCE Resistance between RVMD Resistance between RVMS
1800
Seiko Instruments Inc.
BATTERY PROTECTION 3-SERIAL- 4-SERIAL-CELL PACK S-8254A Series
Table
Item INPUT VOLTAGE Operating voltage between CTLn input voltage CTLn input voltage input voltage input voltage INPUT CURRENT Current consumption operation Current consumption power down current current current current current current current current
Symbol
Conditions Output voltage fixed VCTL VCTL VSEL =3.5 VSEL
25°C unless otherwise specified) Test Min. Typ. Max. Unit circuit
VDSOP VCTLH VCTLL VSELH VSELL
IOPE IPDN IVC1 IVC2 IVC3 IVC4 ICTLH ICTLL ISELH ISELL
OUTPUT CURRENT leakage current ICOH VCOP sink current ICOL VCOP source current IDOH VDOP sink current IDOL VDOP Voltage temperature coefficient Overcharge detection voltage Voltage temperature coefficient Overcurrent detection voltage
Seiko Instruments Inc.
BATTERY PROTECTION 3-SERIAL- 4-SERIAL-CELL PACK S-8254A Series Test Circuits
This chapter describes test S-8254A Series when 4-serial cell selected setting level. When 3-serial cell selected setting level, short power supply Current Consumption Operation, Current Consumption Power-down (Test circuit Current Consumption Operation (IOPE) current when VVMP current consumption (IOPE) during operation. Current Consumption Power-down(IPDN) current when VVMP current consumption (IPDN) power down. Overcharge Detection Voltage, Overcharge Release Voltage, Overdischarge Detection Voltage, Overdischarge Release Voltage, Overcurrent Detection Voltage Overcurrent Detection Voltage Overcurrent Detection Voltage Input Voltage "H", Input Voltage "L", Input Voltage "H", Input Voltage (Test circuit Confirm that (VDD lower) when VVMP VSEL VDD, VINI VCTL VSS, open, (this status referred initial status). Overcharge Detection Voltage (VCU1), Overcharge Release Voltage (VCL1) overcharge detection voltage (VCU1) voltage when voltage (VDD more) after voltage been gradually increased starting initial status. overcharge release voltage (VCL1) voltage when voltage after voltage been gradually decreased. Overdischarge Detection Voltage (VDL1), Overdischarge Release Voltage (VDU1) overdischarge detection voltage (VDL1) voltage when voltage after voltage been gradually decreased starting initial status. overdischarge release voltage (VDU1) voltage when voltage after voltage been gradually increased. When voltage changed, overcharge detection voltage (VCUn), overcharge release voltage (VCLn), overdischarge detection voltage (VDLn), overdischarge release voltage (VDUn) determined same when Overcurrent Detection Voltage (VIOV1) Overcurrent detection voltage (VIOV1) voltage VINI when voltage after VINI voltage been gradually increased starting initial status. Overcurrent Detection Voltage (VIOV2) Overcurrent detection voltage (VIOV2) voltage VINI when voltage after voltage following initial status voltage VINI been gradually decreased. Overcurrent Detection Voltage (VIOV3) Overcurrent detection voltage (VIOV3) voltage difference between VVMP (VDD VVMP) when voltage after voltage been gradually decreased starting initial status. Seiko Instruments Inc.
BATTERY PROTECTION 3-SERIAL- 4-SERIAL-CELL PACK S-8254A Series
Input Voltage (VCTLH), Input Voltage (VCTLL) input voltage (VCTLH) voltage when voltages pins after voltage been gradually increased starting initial status. input voltage (VCTLL) voltage when voltages pins after voltage been gradually decreased. Input Voltage (VSELH), Input Voltage (VSELL) Apply initial status confirm that "H". input voltage (VSELL) voltage when voltage after voltage been gradually decreased. input voltage (VSELH) voltage when voltage after voltage been gradually increased. Overcharge Detection Delay Time, Overdischarge Detection Delay Time, Overcurrent Detection Delay Time Overcurrent Detection Delay Time Overcurrent Detection Delay Time (Test circuit Confirm that when VVMP VDD, VINI VSS, (this status referred initial status). Overcharge Detection Delay Time (tCU) overcharge detection delay time (tCU) time takes voltage change from after voltage instantaneously changed from initial status. Overdischarge Detection Delay Time (tDL) overdischarge detection delay time (tDL) time takes voltage change from after voltage instantaneously changed from initial status Overcurrent Detection Delay Time (tIOV1) Overcurrent detection delay time (tIOV1) time takes voltage change from after voltage VINI instantaneously changed from initial status. Overcurrent Detection Delay Time (tIOV2) Overcurrent detection delay time (tIOV2) time takes voltage change from after voltage VINI instantaneously changed VIOV2 max. from initial status. Overcurrent Detection Delay Time (tIOV3) Overcurrent detection delay time (tIOV3) time takes voltage change from after voltage instantaneously changed VIOV3 min. from initial status.
Seiko Instruments Inc.
BATTERY PROTECTION 3-SERIAL- 4-SERIAL-CELL PACK S-8254A Series
Battery Charge Starting Charger Voltage (Product with Battery Charge Function), Battery Charge Inhibition Battery Voltage (Product with Battery Charge Inhibition Function) (Test circuit Ether battery charge starting charger voltage battery charge inhibition battery voltage applied each product according battery charging function. Battery Charge Starting Battery Charger Voltage (V0CHA) (Product with Battery Charge Function) starting condition product which battery charging available. voltage should lower than V0CHA max. when voltage VVMP V0CHA max. Battery Charge Inhibition Battery Voltage (V0INH) (Product with Battery Charge Inhibition Function) starting condition V0INH product which battery charging inhibited. voltage should higher than VVMP when voltage VVMP Resistance between VDD, Resistance between VSS, Current, Current, Current, Current, Current "H", Current "L", Current "H", Current "L", Leakage Current, Sink Current, Source Current, Sink Current (Test circuit VVMP VSEL VDD, VINI VCTL VSS, other pins left "open" (this status referred initial status). Resistance between (RVMD) resistance between (RVMD) obtained from RVMD IVMD using current value (IVMD) when VVMP after initial status. Resistance between (RVMS) resistance between (RVMS) obtained from RVMS IVMS using current value (IVMS) when after initial status. Current (IVC1), Current (IVC2), Current (IVC3), Current(IVC4) initial status, current that flows through current (IVC1), current that flows through current (IVC2), current that flows through current (IVC3), current that flows through current (IVC4). Current (ICTLH), Current (ICTLL) initial status, current that flows through current (ICTLL), after that, when VCTL VDD, current that flows through current (ICTLH). Current (ISELH), Current (ISELL) initial status, current that flows through current (ISELH), after that, when VSEL VSS, current that flows through current (ISELL).
Seiko Instruments Inc.
BATTERY PROTECTION 3-SERIAL- 4-SERIAL-CELL PACK S-8254A Series
Leakage Current (ICOH), Sink Current (ICOL) sink current (ICOL) current that flows through when VCOP after initial status. After that, current that flows through when VCOP leakage current (ICOH). Source Current (IDOH), Sink Current (IDOL) sink current (IDOL) current that flows through when VDOP after initial status. After that, current that flows through when VVMP VDOP source current (IDOH).
S-8254A VINI
Figure Test Circuit
S-8254A VINI
Figure Test Circuit
Seiko Instruments Inc.
BATTERY PROTECTION 3-SERIAL- 4-SERIAL-CELL PACK S-8254A Series
S-8254A VINI
Figure Test Circuit
S-8254A VINI
Figure Test Circuit
S-8254A VINI
Figure Test Circuit
Seiko Instruments Inc.
Rev.4.1_00 Operation
BATTERY PROTECTION 3-SERIAL- 4-SERIAL-CELL PACK S-8254A Series
Remark Refer Normal Status
Battery Protection Connection Example".
When battery voltages range from VDLn VCUn discharge current lower than specified value (the VINI voltage lower than VIOV1 VIOV2, voltage higher than VIOV3), charging discharging FETs turned Overcharge Status When battery voltages becomes higher than VCUn state continues longer, becomes high impedance. pulled voltage external resistor, charging turned stop charging. This called overcharge status. overcharge status released when following conditions holds. battery voltages become VCLn lower. battery voltages VCUn lower, voltage lower load connected discharging started body diode charging FET). Overdischarge Status When battery voltages becomes lower than VDLn state continues longer, voltage becomes level, discharging turned stop discharging. This called overdischarging status. After discharging stopped overdischarge status, S8254A Series enters power-down status. Power-down Status When discharging stopped overdischarge status, pulled down level RVMS resistor. When voltage lower than S-8254A Series enters power-down status. power-down status, almost circuits S-8254A Series stop current consumption IPDN lower. conditions each output follows. Hi-Z power-down status released when following condition holds. voltage higher. following conditions release overdischarging status. case voltage higher voltage lower than VDD, overdischarging status released when battery voltages VDUn higher. case charger connected, overdischarge hysteresis released. overdischarging status released when battery voltages VDLn higher.
Seiko Instruments Inc.
BATTERY PROTECTION 3-SERIAL- 4-SERIAL-CELL PACK S-8254A Series
Overcurrent Status
S-8254A Series three overcurrent detection levels (VIOV1, VIOV2, VIOV3) three overcurrent detection delay times (tIOV1, tIOV2, tIOV3) corresponding each overcurrent detection level. When discharging current becomes higher than specified value (the voltage between VINI greater than VIOV1) state continues tIOV1 longer, S-8254A Series enters overcurrent status, which voltage becomes level turn discharging stop discharging, becomes high impedance pulled voltage turn charging stop charging, pulled voltage internal resistor (RVMD). Operation overcurrent detection level (VIOV2) overcurrent detection delay time (tIOV2) same VIOV1 tIOV1. overcurrent status, pulled level internal resistor (RVMD resistor). overcurrent status released when following condition holds. voltage VIOV3 higher because charger connected load more) released. Battery Charge Function Regarding charging self-discharged battery battery), S-8254A Series functions from which should selected. battery charging allowed battery charging available.) When charger voltage higher than V0CHA, battery charged. battery charging prohibited battery charging unavailable.) When battery voltages lower than V0INH, battery cannot charged. Caution When voltage lower than minimum value VDSOP, operation S-8254A Series guaranteed. Delay Time Setting overcharge detection delay time (tCU) determined external capacitor connected pin. overdischarge detection delay time (tDL) overcurrent detection delay time (tIOV1) determined external capacitor connected pin. Overcurrent detection delay times (tIOV2, tIOV3) fixed internally. min. typ. max. (5.00, 10.0, 15.0) CCCT [µF] (0.50, 1.00, 1.50) CCDT [µF] tIOV1 (0.05, 0.10, 0.15) CCDT [µF] S-8254A Series control pins. used control output voltages. takes precedence over battery protection circuit. Table Conditions High Hi-Z Open Hi-Z Normal status Normal status status controlled voltage detector.
Caution Please note unexpected behavior might occur when electrical potential difference between (`L' level) generated through external filter (RVSS CVSS) result input voltage fluctuations.
Seiko Instruments Inc.
BATTERY PROTECTION 3-SERIAL- 4-SERIAL-CELL PACK S-8254A Series
S-8254A Series control pins. used switch between 3-cell 4-cell protection. When low, overdischarge detection cell prohibited overdischarge detected even cell shorted, therefore, cell used 3-cell protection. takes precedence over battery protection circuit. high low. Table Conditions High Open Condition 4-cell protection Undefined 3-cell protection
Seiko Instruments Inc.
BATTERY PROTECTION 3-SERIAL- 4-SERIAL-CELL PACK S-8254A Series Timing Chart
Overcharge Detection Overdischarge Detection
VCUn VCLn Battery voltage VDUn VDLn
VEB+ VEB+ Charger Load connection Overcharge connection delay time (tCU) Mode
Hi-Z
Hi-Z
Overdischarge connection delay time (tDL)
Normal mode Overcharge mode Overdischarge mode Remark charger assumed charge with constant current. VEB+ indicates open voltage charger. Figure
Seiko Instruments Inc.
BATTERY PROTECTION 3-SERIAL- 4-SERIAL-CELL PACK S-8254A Series
Overcurrent detection
VCUn VCLn Buttery voltage VDUn VDLn
voltage VEB+ voltage VIOV3 voltage VINI voltage VIOV2 VIOV1 Load connection Overcurrent detection delay time (tIOV1) Overcurrent detection Overcurrent detection delay time (tIOV2) delay time (tIOV3) Hi-Z Hi-Z Hi-Z
Mode*1
Normal mode Overcurrent mode Remark charger assumed charge with constant current. VEB+ indicates open voltage charger. Figure
Seiko Instruments Inc.
BATTERY PROTECTION 3-SERIAL- 4-SERIAL-CELL PACK S-8254A Series Battery Protection Connection Example
3-serial Cell
Charging Discharging RCOP RDOP
RVMP
S-8254A VINI CVC1 CVC2 CVC3 RVC1 RVC2 RVC3 RCTL RSEL CVSS RVSS
RVINI CCDT CCCT
RSENSE
Figure 4-serial Cell
Charging Discharging RCOP RDOP
RVMP
S-8254A VINI CVC1 CVC2 CVC3 CVC4 RSEL CVSS RVSS RVC1 RVC2 RVC3 RVC4 RCTL
RVINI CCDT CCCT
RSENSE
Figure
Seiko Instruments Inc.
BATTERY PROTECTION 3-SERIAL- 4-SERIAL-CELL PACK S-8254A Series
Table Constants External Components Part Typical Range RVC1 RVC2 RVC3 RVC4 RDOP RCOP RVMP RCTL RVINI RSEL RSENSE higher RVSS 51*1 CVC1 0.33*1 CVC2 0.33*1 CVC3 0.33*1 CVC4 0.33*1 CCCT 0.01 higher CCDT 0.07 higher CVSS 10*1 Please filter constant RVSS CVSS CVC1 RVC2 CVC2 RVC3 CVC3 CVC4 RVSS CVSS. Unit RVC1
Cautions above constants changed without notice. recommended that filter constants between should approximately e.g. CVSS RVSS Enough evaluation transient power supply variation overcurrent protection function actual application needed determine proper constants. Contact sales office case constants should other than been confirmed whether operation normal circuits other than above example connection. addition, example connection shown above constant guarantee proper operation. Perform through evaluation using actual application constant.
Precautions
application conditions input voltage, output voltage, load current should exceed package power dissipation. Batteries connected order, however, there cases when discharging cannot performed when battery connected. this case, short connect battery charger return normal mode. When overcharged battery overdischarged battery intermix, circuit both overcharge overdischarge statuses, charging discharging possible. apply electrostatic discharge this that exceeds performance ratings built-in electrostatic protection circuit. claims responsibility disputes arising connection with infringement products including this patents owned third party.
Seiko Instruments Inc.
BATTERY PROTECTION 3-SERIAL- 4-SERIAL-CELL PACK S-8254A Series Characteristics (Typical Data)
Current Consumption IOPE
IOPE
IOPE [µA]
IOPE [µA]
[°C]
IPDN
0.10 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0.00
IPDN
0.10 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0.00
IPDN [µA]
IPDN [µA]
[°C]
Overcharge Detection Release Voltage, Overdischarge Detection Release Voltage, Overcurrent Detection Voltage, Delay Times
4.375 4.370 4.365 4.360 4.355 4.350 4.345 4.340 4.335 4.330 4.325
4.20 4.18 4.16 4.14 4.12
[°C]
4.10
[°C]
2.80 2.78 2.76 2.74 2.72 2.70 2.68 2.66 2.64 2.62 2.60
2.08 2.06 2.04 2.02 2.00 1.98 1.96 1.94 1.92
[°C]
[°C]
Seiko Instruments Inc.
BATTERY PROTECTION 3-SERIAL- 4-SERIAL-CELL PACK S-8254A Series
VIOV1
0.325 0.320 0.315 0.310 0.305 0.300 0.295 0.290 0.285 0.280 0.275
VIOV1
0.35 0.34 0.33 0.32 0.31 0.30 0.29 0.28 0.27 0.26 0.25
VIOV1
VIOV1
[°C]
VIOV2
0.60 0.58 0.56 0.54 0.52 0.50 0.48 0.46 0.44 0.42 0.40
VIOV2
0.60 0.58 0.56 0.54 0.52 0.50 0.48 0.46 0.44 0.42 0.40
VIOV2
VIOV2
[°C]
VIOV3
-0.9 -1.0 VIOV3 -1.1 -1.2 -1.3 -1.4 -1.5
2.10 VIOV3
-0.9 -1.0 VIOV3 -1.1 -1.2 -1.3 -1.4 -1.5 [°C]
2.11 CCCT
2.12
0.01 0.01
CCCT [µF]
[°C]
Seiko Instruments Inc.
BATTERY PROTECTION 3-SERIAL- 4-SERIAL-CELL PACK S-8254A Series
2.13 CCDT
[ms]
2.14
0.01 0.001 0.01 CCDT [µF]
[°C]
2.15 tIOV1 CCDT
2.16 tIOV1
tIOV1 [ms]
tIOV1 0.01 0.001 0.0001 0.01 CCDT [µF]
[°C]
2.17 tIOV2
tIOV2 [ms]
2.18 tIOV3
tIOV3 [ms]
[°C]
[°C]
Seiko Instruments Inc.
BATTERY PROTECTION 3-SERIAL- 4-SERIAL-CELL PACK S-8254A Series
ICOH VCOP
0.10 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01
ICOL VCOP
ICOL [mA]
ICOH [µA]
VCOP
VCOP
10.5
IDOH VDOP
-0.5 -1.0 -1.5 -2.0 -2.5 -3.0 -3.5 -4.0 -4.5 -5.0
IDOL VDOP
IDOL [mA]
IDOH [mA]
VDOP
VDOP
10.5
Seiko Instruments Inc.
5.1±0.2
0.17±0.05
0.65
0.22±0.08
FT016-A-P-SD-1.1
TITLE SCALE UNIT
TSSOP16-A-PKG Dimensions FT016-A-P-SD-1.1
Seiko Instruments Inc.
+0.1
4.0±0.1 2.0±0.1
0.3±0.05
8.0±0.1 (7.2) 4.2±0.2 1.5±0.1
-0.2
+0.4
Feed direction
FT016-A-C-SD-1.1
TITLE SCALE UNIT
TSSOP16-A-Carrier Tape FT016-A-C-SD-1.1
Seiko Instruments Inc.
21.4±1.0
17.4±1.0
17.4 -1.5
+2.0
Enlarged drawing central part 2.0±0.5
FT016-A-R-SD-1.1
TITLE SCALE UNIT
TSSOP16-A- Reel FT016-A-R-SD-1.1
QTY. 2,000
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.

S-8254A Series S-8254A series protection 3-serial- 4serial-cell l

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