S-8244 Series S-8244 Series used secondary protection lithium-ion

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S-8244 Series S-8244 Series used secondary protection lithium-ion

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BATTERY PROTECTION 1-SERIAL 4-SERIAL-CELL PACK (SECONDARY PROTECTION)
S-8244 Series
S-8244 Series used secondary protection lithium-ion batteries with from four cells, incorporates highprecision voltage detector circuit delay circuit. Short-circuits between cells accommodate series connection four cells.
Features
Internal high-precision voltage detector circuit Overcharge detection voltage range 3.70 4.50 Accuracy mV/step) Accuracy Hysteresis optional models available selectable: 0.38±0.1 0.25±0.07 0.13±0.04 0.045±0.02 None High withstand voltage device Absolute maximum rating Wide operating voltage range (refers range which delay circuit operate normally after overvoltage detected) Delay time during detection external capacitor. current consumption each cell max. (+25 each cell max. (+25 Output logic form types CMOS output active CMOS output active open drain output active open drain output active (only CMOS output 0.045 hysteresis models) Lead-free products
Applications
Lithium rechargeable battery packs (secondary protection)
Packages
Package name SNT-8A 8-Pin MSOP Drawing code Package PH008-A FN008-A Tape PH008-A FN008-A Reel PH008-A FN008-A Land PH008-A
Seiko Instruments Inc.
BATTERY PROTECTION 1-SERIAL 4-SERIAL-CELL PACK (SECONDARY PROTECTION) Rev.3.3_00 S-8244 Series Block Diagram
SENSE
Overcharge detection comparator
Reference voltage
Overcharge detection comparator
Overcharge detection delay circuit
Control logic
Reference voltage
Overcharge detection comparator
Reference voltage
Overcharge detection comparator
Reference voltage
Remark
case open-drain output, only transistor will connected pin. case open-drain output, only transistor will connected pin. Figure
Seiko Instruments Inc.
BATTERY PROTECTION 1-SERIAL 4-SERIAL-CELL PACK (SECONDARY PROTECTION) Rev.3.3_00 S-8244 Series Product Name Structure
Product Name S-8244A direction tape specifications*1 SNT-8A 8-Pin MSOP Product name (abbreviation)*2 Package abbreviation SNT-8A 8-Pin MSOP Serial code Sequentially from Refer taping specifications this book. Refer Product Name List.
Seiko Instruments Inc.
BATTERY PROTECTION 1-SERIAL 4-SERIAL-CELL PACK (SECONDARY PROTECTION) Rev.3.3_00 S-8244 Series
Product Name List SNT-8A Table Overcharge Overcharge hysteresis voltage Output form detection voltage [VCD] [VCU] S-8244AAAPH-CEATFG CMOS output active 4.45 0.025 0.38 S-8244AABPH-CEBTFG open drain active 4.20 0.025 S-8244AAFPH-CEFTFG CMOS output active 4.35 0.025 0.045 0.02 S-8244AAGPH-CEGTFG CMOS output active 4.45 0.025 0.045 0.02 S-8244AAVPH-CEVTFG CMOS output active 4.275 0.025 0.045 0.02 S-8244AAYPH-CEYTFG CMOS output active 4.300 0.025 0.25 0.07 S-8244AAZPH-CEZTFG CMOS output active 4.280 0.025 0.25 0.07 Remark Please contact sales office products with detection voltage value other than those specified above. Product name/Item 8-Pin MSOP Table Overcharge Overcharge detection voltage hysteresis voltage Output form [VCU] [VCD] S-8244AAAFN-CEAT2G CMOS output active 4.45 0.025 0.38 S-8244AABFN-CEBT2G open drain active 4.20 0.025 S-8244AACFN-CECT2G CMOS output active 4.115 0.025 0.13 0.04 S-8244AADFN-CEDT2G open drain active 4.20 0.025 S-8244AAEFN-CEET2G open drain active 4.225 0.025 S-8244AAFFN-CEFT2G CMOS output active 4.35 0.025 0.045 0.02 S-8244AAGFN-CEGT2G CMOS output active 4.45 0.025 0.045 0.02 S-8244AAHFN-CEHT2G CMOS output active 4.30 0.025 0.25 0.07 S-8244AAIFN-CEIT2G CMOS output active 4.40 0.025 0.045 0.02 S-8244AAJFN-CEJT2G CMOS output active 4.50 0.025 0.38 CMOS output active S-8244AAKFN-CEKT2G 4.475 0.025 0.38 CMOS output active S-8244AALFN-CELT2G 4.35 0.025 0.25 0.07 CMOS output active S-8244AAMFN-CEMT2G 4.30 0.025 0.25 0.07 CMOS output active S-8244AANFN-CENT2G 4.15 0.025 0.25 0.07 CMOS output active S-8244AAOFN-CEOT2G 4.25 0.025 0.25 0.07 CMOS output active S-8244AAPFN-CEPT2G 4.05 0.025 0.25 0.07 open drain active S-8244AAQFN-CEQT2G 4.15 0.025 open drain active S-8244AARFN-CERT2G 4.30 0.025 0.25 0.07 Remark Please contact sales office department products with detection voltage value other than those specified above. Product name/Item
Seiko Instruments Inc.
BATTERY PROTECTION 1-SERIAL 4-SERIAL-CELL PACK (SECONDARY PROTECTION) Rev.3.3_00 S-8244 Series Configurations
Table
SNT-8A view SENSE
Symbol SENSE
Figure
Description gate connection charge control Capacitor connection overcharge detection delay Negative power input Negative voltage connection Battery Negative voltage connection Battery Positive voltage connection Battery Negative voltage connection Battery Positive voltage connection Battery Negative voltage connection Battery Positive voltage connection Battery Positive voltage connection Battery Positive power input
Table
8-Pin MSOP view SENSE
Symbol SENSE
Figure
Description Positive power input Positive voltage connection Battery Negative voltage connection Battery Positive voltage connection Battery Negative voltage connection Battery Positive voltage connection Battery Negative voltage connection Battery Positive voltage connection Battery Negative power input Negative voltage connection Battery Capacitor connection overcharge detection delay gate connection charge control
Seiko Instruments Inc.
BATTERY PROTECTION 1-SERIAL 4-SERIAL-CELL PACK (SECONDARY PROTECTION) Rev.3.3_00 S-8244 Series Absolute Maximum Ratings
Table Item Input voltage between Delay capacitor connection voltage Input voltage output voltage Power dissipation (CMOS output) (Nch open drain output) (Pch open drain output) SNT-8A 8-Pin MSOP Symbol VICT Applied SENSE, VC1, VC2, unless otherwise specified) Rating Unit VSS-0.3 VSS+26 -0.3 +0.3 -0.3 +0.3 -0.3 +0.3 -0.3 +0.3 450*1 (When mounted board) 500*1 +125
Operating ambient temperature Topr Storage temperature Tstg When mounted board [Mounted board] Board size 114.3 76.2 t1.6 Name JEDEC STANDARD51-7 Caution
absolute maximum ratings rated values exceeding which product could suffer physical damage. These values must therefore exceeded under conditions.
8-Pin MSOP
Power Dissipation (PD) [mW]
SNT-8A
Ambient Temperature (Ta) [°C]
Figure
Power Dissipation Package (When Mounted Board)
Seiko Instruments Inc.
BATTERY PROTECTION 1-SERIAL 4-SERIAL-CELL PACK (SECONDARY PROTECTION) Rev.3.3_00 S-8244 Series Electrical Characteristics
Table unless otherwise specified) Item DETECTION VOLTAGE Overcharge detection voltage Overcharge detection voltage Overcharge detection voltage Overcharge detection voltage Overcharge hysteresis voltage Overcharge hysteresis voltage Overcharge hysteresis voltage Overcharge hysteresis voltage Detection voltage temperature coefficient DELAY TIME Overcharge detection delay time OPERATING VOLTAGE Operating voltage between CURRENT CONSUMPTION Current consumption during normal operation Current consumption power down sink current sink current sink current OUTPUT VOLTAGE*5 voltage voltage
Symbol
Conditions
Min.
Typ.
Max. VCU1 +0.025 VCU2 +0.025 VCU3 +0.025 VCU4 +0.025 0.48 0.48 0.48 0.48 +0.4
Unit
Test conditions
Test circuit
VCU1 VCU2 VCU3 VCU4 VCD1 VCD2 VCD3 VCD4 TCOE VDSOP
VCU1 -0.025 VCU2 Adjustment -0.025 VCU3 Adjustment -0.025 VCU4 Adjustment -0.025 0.28 0.28 0.28 0.28 Adjustment Ta=-40 C=0.1 V1=V2=V3=V4=3.5 V1=V2=V3=V4=2.3 V1=V2=V3=V4=3.5 V1=V2=V3=V4=3.5 V1=V2=V3=V4=3.5 IOUT IOUT -0.4
VCU1 VCU2 VCU3 VCU4 0.38 0.38 0.38 0.38
mV/°C
IOPE IPDN IVC1 IVC2 IVC3 VCO(H) VCO(L)
-0.3 -0.3 -0.3 -0.05
+0.05
when 0.25±0.07 0.13±0.04 0.045±0.02 except 0.38 hysteresis models. Overcharge detection voltage overcharge hysteresis voltage. After detecting overcharge, delay circuit operates normally range operating voltage. Output logic CMOS open drain output selected.
Seiko Instruments Inc.
BATTERY PROTECTION 1-SERIAL 4-SERIAL-CELL PACK (SECONDARY PROTECTION) Rev.3.3_00 S-8244 Series Test Circuits
Test Condition Test Circuit Conditions: switches CMOS output models. switch switch open drain models. switch switch open drain models. Definitions: gradually increase Overcharge detection voltage (VCU1) defined voltage when turned (for CMOS output active open drain) (for CMOS output active open drain). Next, gradually decrease Overcharge hysteresis voltage (VCD1) defined difference between VCU1 when turned (for CMOS output active open drain) (for CMOS output active open drain). Test Condition Test Circuit Conditions: switches CMOS output models. switch switch open drain models. switch switch open drain models. Definitions: gradually increase Overcharge detection voltage (VCU2) defined voltage when turned (for CMOS output active open drain) (for CMOS output active open drain). Next, gradually decrease Overcharge hysteresis voltage (VCD2) defined difference between VCU2 when turned (for CMOS output active open drain) (for CMOS output active open drain). Test Condition Test Circuit Conditions: switches CMOS output models. switch switch open drain models. switch switch open drain models. Definitions: gradually increase Overcharge detection voltage (VCU3) defined voltage when turned (for CMOS output active open drain) (for CMOS output active open drain). Next gradually decrease Overcharge hysteresis voltage (VCD3) defined difference between VCU3 when turned (for CMOS output active open drain) (for CMOS output active open drain).
Seiko Instruments Inc.
BATTERY PROTECTION 1-SERIAL 4-SERIAL-CELL PACK (SECONDARY PROTECTION) Rev.3.3_00 S-8244 Series
Test Condition Test Circuit Conditions: switches CMOS output models. switch switch open drain models. switch switch open drain models. Definitions: gradually increase Overcharge detection voltage (VCU4) defined voltage when turned (for CMOS output active open drain) (for CMOS output active open drain). Next, gradually decrease Overcharge hysteresis voltage (VCD4) defined difference between VCU4 when turned (for CMOS output active open drain) (for CMOS output active open drain). Test Condition Test Circuit Conditions: switches CMOS output models. switch switch open drain models. switch switch open drain models. Definition: momentarily rise within Overcharge detection delay time (tCU) period from when goes when turned (for CMOS output active open drain) (for CMOS output active open drain). Test Condition Test Circuit Conditions: Measure current consumption (I1). Definition: current consumption (I1) defined current consumption power down (IPDN). Conditions: Measure current consumption Definition: current consumption (I1) defined current consumption during normal operation (IOPE), current consumption (I2) sink current (IVC1), current consumption (I3) sink current (IVC2), current consumption (I4) sink current (IVC3), respectively.
Seiko Instruments Inc.
BATTERY PROTECTION 1-SERIAL 4-SERIAL-CELL PACK (SECONDARY PROTECTION) Rev.3.3_00 S-8244 Series
Test Condition Test Circuit Conditions: switch switch Definitions: gradually decrease from (for CMOS output active models). voltage defined when flows. gradually decrease from (for CMOS output active open drain models). voltage defined when flows. gradually increase from (for CMOS output active models). voltage defined when flows. gradually increase from (for CMOS output active open drain models). voltage defined when flows.
S-8244
SENSE
S-8244
SENSE
Test Circuit
Test Circuit
S-8244
SENSE
S-8244
SENSE
Test Circuit
Figure
Test Circuit
Seiko Instruments Inc.
BATTERY PROTECTION 1-SERIAL 4-SERIAL-CELL PACK (SECONDARY PROTECTION) Rev.3.3_00 S-8244 Series Operation
Overcharge Detection turned (for CMOS output active open drain models) (for CMOS output active open drain models) when voltage batteries exceeds overcharge detection voltage (VCU) during charging under normal conditions beyond overcharge detection delay time (tCU). This state called "overcharge." Attaching provides charge control second protection. that time, overcharge state maintained until voltage batteries decreases from overcharge detection voltage (VCU) equivalent overcharge hysteresis voltage (VCD). Delay Circuit delay circuit rapidly charges capacitor connected delay capacitor connection specified voltage when voltage batteries exceeds overcharge detection voltage (VCU). Then, delay circuit gradually discharges capacitor inverts output when voltage delay capacitor connection goes below specified level. Overcharge detection delay time (tCU) varies depending upon external capacitor. Each delay time calculated using following equation. tCU[s] Delay Coefficient Min. (10, Typ. Max. CICT [µF]
Because delay capacitor rapidly charged, smaller capacitance, larger difference between maximum voltage specified value delay capacitor (ICT pin). This will cause deviation between calculated delay time resultant delay time. Also, delay time internally this prevent output from inverting until charge delay capacitor reached specified voltage. large capacitance used, output enabled without delay time because charge disabled within internal delay time. Please note that maximum capacitance connected delay capacitor (ICT pin)
Seiko Instruments Inc.
BATTERY PROTECTION 1-SERIAL 4-SERIAL-CELL PACK (SECONDARY PROTECTION) Rev.3.3_00 S-8244 Series Timing Chart
battery battery battery battery
Battery voltage
voltage voltage CMOS output active open drain models CMOS output active open drain models
voltage Delay
Figure
Seiko Instruments Inc.
BATTERY PROTECTION 1-SERIAL 4-SERIAL-CELL PACK (SECONDARY PROTECTION) Rev.3.3_00 S-8244 Series Battery Protection Connection Example
Connection Example
PROTECTOR
RVCC SENSE BAT1 BAT2 BAT3 BAT4 EBFET CICT CVCC
Figure Table Constants External Components Symbol Min. Typ. Max. RVCC CVCC CICT
Unit
Caution1. above constants changed without notice. 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. case open drain output, pull external resistor. [For PROTECTOR, contact] Sony Chemicals Corporation Electronic Devices Business Group 1-11-2 Osaki, Shinagawa-ku, Tokyo, 141-0032 Japan TEL: +81-3-5435-3943 FAX: +81-3-5435-3072
Seiko Instruments Inc.
BATTERY PROTECTION 1-SERIAL 4-SERIAL-CELL PACK (SECONDARY PROTECTION) Rev.3.3_00 S-8244 Series
Connection Example
RVCC SENSE BAT1 BAT2 BAT3 BAT4 CICT CVCC
PROTECTOR
Figure Table Constants External Components Symbol Min. Typ. Max. RVCC CVCC CICT
Unit
Caution1. above constants changed without notice. 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. case open drain output, pull external resistor.
Seiko Instruments Inc.
BATTERY PROTECTION 1-SERIAL 4-SERIAL-CELL PACK (SECONDARY PROTECTION) Rev.3.3_00 S-8244 Series
Connection Example (for 3-cells)
PROTECTOR
RVCC SENSE BAT1 BAT2 BAT3 EBICT CICT CVCC
Figure Table Constants External Components Symbol Min. Typ. Max. RVCC CVCC CICT
Unit
Caution1. above constants changed without notice. 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. case open drain output, pull external resistor.
Seiko Instruments Inc.
BATTERY PROTECTION 1-SERIAL 4-SERIAL-CELL PACK (SECONDARY PROTECTION) Rev.3.3_00 S-8244 Series
Connection Example (for 2-cells)
PROTECTOR
RVCC SENSE BAT1 BAT2 CICT EBVCC CVCC
Figure Table Constants External Components Symbol Min. Typ. Max. Unit RVCC CVCC CICT Caution1. above constants changed without notice. 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. case open drain output, pull external resistor.
Seiko Instruments Inc.
BATTERY PROTECTION 1-SERIAL 4-SERIAL-CELL PACK (SECONDARY PROTECTION) Rev.3.3_00 S-8244 Series
Connection Example (for 1-cell)
PROTECTOR
RVCC SENSE BAT1 CVCC
CICT
Figure Table Constants External Components Symbol Min. Typ. Max. Unit RVCC CVCC CICT Caution1. above constants changed without notice. 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. case open drain output, pull external resistor.
Seiko Instruments Inc.
BATTERY PROTECTION 1-SERIAL 4-SERIAL-CELL PACK (SECONDARY PROTECTION) Rev.3.3_00 S-8244 Series Precautions
This charges delay capacitor through delay capacitor (ICT pin) immediately when voltage batteries reaches overcharge voltage. Therefore, setting resistor connected value greater than recommended level causes reduction power supply voltage because charge current delay capacitor. This lead malfunction. resistor exceed typical value. change resistance, please consult connect overcharged batteries. Even only overcharged battery connected this detects overcharge, then charge current flows delay capacitor through parasitic diode between pins where battery connected yet. This lead malfunction. Please perform sufficient evaluation case use. Depending application circuit, even when fault charge battery contained, connection turn battery restricted order prevent output detection pulse time battery connection.
CMOS output active open drain models
Battery voltage
battery
battery
battery
battery
voltage
CICT high
CICT
CICT
Setting voltage voltage
CICT high Internal delay Delay
this output logic inverted after several milliseconds internal delay this under overcharge condition even either "VSS-short circuit," "VDD-short circuit" "Open" status. position from used when applying this three-cell battery. However, sure short circuit between pins (SENSE-VC1, VC1-VC2, VC2-VC3, VC3-VSS). application conditions input voltage, output voltage, load current should exceed package power dissipation. apply electrostatic discharge this that exceeds performance ratings built-in electrostatic protection circuit. claims responsibility disputes arising connection with infringement products including this upon patents owned third party.
Seiko Instruments Inc.
BATTERY PROTECTION 1-SERIAL 4-SERIAL-CELL PACK (SECONDARY PROTECTION) Rev.3.3_00 S-8244 Series Characteristics (Typical Data)
Detection Voltage Temperature Overcharge Detection Voltage Temperature VCU= 4.45(V) S-8244AAAFN
4.55
Overcharge Release Voltage Temperature
S-8244AAAFN
4.17 VCU-VCD(V)
VCD=0.38(V)
VCU(V)
4.45
4.07
4.35 Ta(°C)
3.97 Ta(°C)
Current Consumption Temperature Current Consumption during Normal Operation Temperature S-8244AAAFN =14.0(V)
Current Consumption Power Down Temperature VCC= 9.2(V) S-8244AAAFN
ICPE(µA)
IPDN(µA) Ta(°C)
Ta(°C)
Delay Time Temperature Overcharge Detection Delay Time Temperature S-8244AAAFN =15.2(V)
tCU(s)
Ta(°C)
Caution
Please design applications S-8244 Series with safety mind.
Seiko Instruments Inc.
1.97±0.03
0.08 -0.02
+0.05
0.48±0.02
0.2±0.05
PH008-A-P-SD-2.0
TITLE SCALE UNIT
SNT-8A-A-PKG Dimensions PH008-A-P-SD-2.0
Seiko Instruments Inc.
+0.1
2.0±0.05
4.0±0.1
0.25±0.05
2.25±0.05
4.0±0.1
0.65±0.05
Feed direction
PH008-A-C-SD-1.0
TITLE SCALE UNIT
SNT-8A-A-Carrier Tape PH008-A-C-SD-1.0
Seiko Instruments Inc.
12.5max.
Enlarged drawing central part
9.0±0.3
(60°)
(60°)
PH008-A-R-SD-1.0
TITLE SCALE UNIT
SNT-8A-A-Reel PH008-A-R-SD-1.0
QTY. 5,000
Seiko Instruments Inc.
0.52
2.01
0.52
Caution Making wire pattern under package possible. However, note that package upraised thickness made silk screen printing solder resist pattern because this package does have standoff.
PH008-A-L-SD-3.0
TITLE SCALE UNIT
SNT-8A-A-Land Recommendation
PH008-A-L-SD-3.0
Seiko Instruments Inc.
2.95±0.2
0.13±0.1
0.2±0.1 0.65±0.1
FN008-A-P-SD-1.1
TITLE SCALE UNIT
MSOP8-A-PKG Dimensions FN008-A-P-SD-1.1
Seiko Instruments Inc.
2.0±0.05 4.0±0.1 4.0±0.1 1.35±0.15 1.55±0.05
1.05±0.05
0.3±0.05
3.1±0.15
Feed direction
FN008-A-C-SD-1.1
TITLE SCALE UNIT
MSOP8-A-Carrier Tape FN008-A-C-SD-1.1
Seiko Instruments Inc.
16.5max.
Enlarged drawing central part 13±0.2
13.0±0.3
(60°)
(60°)
FN008-A-R-SD-1.1
TITLE SCALE UNIT
MSOP8-A-Reel FN008-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.

S-8244 Series S-8244 Series used secondary protection lithium-ion

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