S-8254AA(S-8254AA).pdf-资料库

S-8254A Series BATTERY PROTECTION IC FOR 3-SERIAL- OR 4-SERIAL-CELL PACK Rev.5.0_01 www.sii-ic.com © Seiko Instruments Inc., 2002-2010 The S-8254A series is a protection IC for 3-serial- or 4-serial-cell lithium-ion / lithium polymer rechargeable batteries and includes a high-accuracy voltage detector and delay circuit. The S-8254A series protects both 3-serial or 4-serial cells using the SEL pin for switching. Features (1) High-accuracy voltage detection for each cell Accuracy ±25 mV • Overcharge detection voltage n (n = 1 to 4) Accuracy ±50 mV • Overcharge release voltage n (n = 1 to 4) • Overdischarge detection voltage n (n = 1 to 4) 2.0 V to 3.0 V (100 mV steps) Accuracy ±80 mV Accuracy ±100 mV • Overdischarge release voltage n (n = 1 to 4) 3.9 V to 4.4 V (50 mV steps) 3.8 V to 4.4 V*1 2.0 V to 3.4 V*2 (2) Three-level overcurrent protection • Overcurrent detection voltage 1 • Overcurrent detection voltage 2 • Overcurrent detection voltage 3 0.05 V to 0.30 V (50 mV steps) Accuracy ±25 mV Accuracy ±100 mV 0.5 V VVC1 − 1.2 V Accuracy ±300 mV (3) Delay times for overcharge detection, overdischarge detection and overcurrent detection 1 can be set by external capacitors (delay times for overcurrent detection 2 and 3 are fixed internally). (4) Switchable between a 3-serial cell and 4-serial cell using the SEL pin (5) Charge/discharge operation can be controlled via the control pins. (6) High-withstand voltage device (7) Wide operating voltage range (8) Wide operating temperature range −40°C to + 85°C (9) Low current consumption Absolute maximum rating : 26 V 2 V to 24 V • Operation mode 30 μA max. (+25°C) • Power-down mode 0.1 μA max. (+25°C) (10) Lead-free, Sn100%, halogen-free*3 *1. Overcharge hysteresis voltage n (n = 1 to 4) can be selected as 0 V or from a range of 0.1 V to 0.4 V in 50 mV steps. (Overcharge hysteresis voltage = Overcharge detection voltage − Overcharge release voltage) *2. Overdischarge hysteresis voltage n (n = 1 to 4) can be selected as 0 V or from a range of 0.2 V to 0.7 V in 100 mV steps. (Overdischarge hysteresis voltage = Overdischarge release voltage − Overdischarge detection voltage) *3. Refer to “ Product Name Structure” for details. Applications • Lithium-ion rechargeable battery packs • Lithium polymer rechargeable battery packs Package • 16-Pin TSSOP Seiko Instruments Inc. 1

BATTERY PROTECTION IC FOR 3-SERIAL- OR 4-SERIAL-CELL PACK S-8254A Series Rev.5.0_01 Block Diagram DOP, COP, RVMD, RVMS Control Circuit Delay Circuit Delay Circuit Delay Circuit Delay Circuit 1 MΩ 900 kΩ + − + − + − − + + − − + + − − + + − − + + − COP VMP DOP VINI CDT CCT VSS Remark 1. Diodes in the figure are parasitic diodes. 2. Numerical values are typical values. Figure 1 Seiko Instruments Inc. 2 VDD VC1 VC2 VC3 VC4 CTL SEL 200 nA

Rev.5.0_01 BATTERY PROTECTION IC FOR 3-SERIAL- OR 4-SERIAL-CELL PACK S-8254A Series Product Name Structure 1. Product Name S-8254A xx FT - TB - x Environmental code U: Lead-free (Sn 100%), halogen-free S: Lead-free, halogen-free G: Lead-free (for details, please contact our sales office) IC direction in tape specifications *1 Package code FT: 16-Pin TSSOP *1. Refer to the tape specifications at the end of this book. *2. Refer to “2. Product Name List”. Serial code *2 Sequentially set from AA to ZZ 2. Package Package name 16-Pin TSSOP Environmental code = G, S Environmental code = U Package FT016-A-P-SD FT016-A-P-SD Tape Reel FT016-A-C-SD FT016-A-C-SD FT016-A-R-SD FT016-A-R-S1 Seiko Instruments Inc. 3

BATTERY PROTECTION IC FOR 3-SERIAL- OR 4-SERIAL-CELL PACK S-8254A Series Rev.5.0_01 2. Product Name List Product name / Item Overcharge detection voltage Overcharge release voltage [VCU] [VCL] Table 1 Overdischarge detection voltage [VDL] Overdischarge release voltage Overcurrent detection voltage 1 [VDU] [VIOV1] 0 V battery charge function S-8254AAAFT-TB-x 4.350 ± 0.025 V S-8254AABFT-TB-x 4.250 ± 0.025 V S-8254AAEFT-TB-x 4.350 ± 0.025 V S-8254AAFFT-TB-x 4.350 ± 0.025 V S-8254AAGFT-TB-x 4.275 ± 0.025 V S-8254AAHFT-TB-x 4.350 ± 0.025 V S-8254AAIFT-TB-x 4.350 ± 0.025 V S-8254AAJFT-TB-x 4.350 ± 0.025 V S-8254AAKFT-TB-x 4.350 ± 0.025 V S-8254AALFT-TB-x 4.300 ± 0.025 V S-8254AAMFT-TB-x 4.200 ± 0.025 V S-8254AANFT-TB-x 4.250 ± 0.025 V S-8254AAOFT-TB-X 4.300 ± 0.025 V S-8254AAPFT-TB-x 4.280 ± 0.025 V S-8254AAQFT-TB-x 3.900 ± 0.025 V S-8254AARFT-TB-x 4.350 ± 0.025 V S-8254AASFT-TB-x 4.290 ± 0.025 V S-8254AATFT-TB-x 4.200 ± 0.025 V S-8254AAUFT-TB-x 4.350 ± 0.025 V S-8254AAVFT-TB-x 4.250 ± 0.025 V S-8254AAWFT-TB-x 4.250 ± 0.025 V S-8254AAXFT-TB-x 4.250 ± 0.025 V S-8254AAYFT-TB-x 4.275 ± 0.025 V S-8254AAZFT-TB-x 4.250 ± 0.025 V S-8254ABAFT-TB-x 3.900 ± 0.025 V S-8254ABBFT-TB-x 4.200 ± 0.025 V S-8254ABCFT-TB-x 4.175 ± 0.025 V S-8254ABDFT-TB-y 4.300 ± 0.025 V S-8254ABEFT-TB-y 4.200 ± 0.025 V S-8254ABFFT-TB-x 4.150 ± 0.025 V S-8254ABGFT-TB-x 4.180 ± 0.025 V S-8254ABHFT-TB-y 4.150 ± 0.025 V S-8254ABIFT-TB-x 4.215 ± 0.025 V Remark 1. Please contact our sales office for the products with the detection voltage value other than those 4.150 ± 0.050 V 4.250 ± 0.025 V 4.150 ± 0.050 V 4.150 ± 0.050 V 4.075 ± 0.050 V 4.150 ± 0.050 V 4.150 ± 0.050 V 4.150 ± 0.050 V 4.150 ± 0.050 V 4.150 ± 0.050 V 4.100 ± 0.050 V 4.150 ± 0.050 V 4.080 ± 0.050 V 4.130 ± 0.050 V 3.800 ± 0.050 V 4.150 ± 0.050 V 4.090 ± 0.050 V 4.200 ± 0.025 V 4.150 ± 0.050 V 4.150 ± 0.050 V 4.100 ± 0.050 V 4.100 ± 0.050 V 4.125 ± 0.050 V 4.150 ± 0.050 V 3.800 ± 0.050 V 4.200 ± 0.025 V 3.975 ± 0.050 V 4.100 ± 0.050 V 4.150 ± 0.050 V 4.050 ± 0.050 V 4.080 ± 0.050 V 4.050 ± 0.050 V 4.115 ± 0.050 V 0.30 ± 0.025 V 0.30 ± 0.025 V 0.20 ± 0.025 V 0.20 ± 0.025 V 0.13 ± 0.025 V 0.10 ± 0.025 V 0.30 ± 0.025 V 0.15 ± 0.025 V 0.20 ± 0.025 V 0.20 ± 0.025 V 0.30 ± 0.025 V 0.10 ± 0.025 V 0.10 ± 0.025 V 0.15 ± 0.025 V 0.30 ± 0.025 V 0.20 ± 0.025 V 0.075 ± 0.025 V 0.30 ± 0.025 V 0.20 ± 0.025 V 0.20 ± 0.025 V 0.10 ± 0.025 V 0.15 ± 0.025 V 0.10 ± 0.025 V 0.13 ± 0.025 V 0.15 ± 0.025 V 0.30 ± 0.025 V 0.10 ± 0.025 V 0.13 ± 0.025 V 0.15 ± 0.025 V 0.13 ± 0.025 V 0.13 ± 0.025 V 0.10 ± 0.025 V 0.20 ± 0.025 V 2.00 ± 0.080 V 2.00 ± 0.080 V 2.00 ± 0.080 V 2.40 ± 0.080 V 2.30 ± 0.080 V 2.40 ± 0.080 V 2.40 ± 0.080 V 2.40 ± 0.080 V 2.70 ± 0.080 V 2.40 ± 0.080 V 2.50 ± 0.080 V 2.50 ± 0.080 V 2.50 ± 0.080 V 3.00 ± 0.080 V 2.30 ± 0.080 V 2.80 ± 0.080 V 2.30 ± 0.080 V 2.00 ± 0.080 V 2.40 ± 0.080 V 2.70 ± 0.080 V 3.00 ± 0.080 V 2.00 ± 0.080 V 2.40 ± 0.080 V 2.00 ± 0.080 V 2.00 ± 0.080 V 2.50 ± 0.080 V 2.75 ± 0.080 V 2.00 ± 0.080 V 2.50 ± 0.080 V 2.00 ± 0.080 V 2.00 ± 0.080 V 2.50 ± 0.080 V 2.40 ± 0.080 V 2.70 ± 0.100 V 2.70 ± 0.100 V 2.70 ± 0.100 V 3.00 ± 0.100 V 2.70 ± 0.100 V 2.70 ± 0.100 V 3.00 ± 0.100 V 3.00 ± 0.100 V 3.00 ± 0.100 V 3.00 ± 0.100 V 2.70 ± 0.100 V 3.00 ± 0.100 V 3.00 ± 0.100 V 3.00 ± 0.080 V 2.70 ± 0.100 V 3.00 ± 0.100 V 3.00 ± 0.100 V 2.70 ± 0.100 V 3.00 ± 0.100 V 3.00 ± 0.100 V 3.20 ± 0.100 V 2.70 ± 0.100 V 2.70 ± 0.100 V 2.70 ± 0.100 V 2.50 ± 0.100 V 3.20 ± 0.100 V 3.05 ± 0.100 V 2.00 ± 0.080 V 3.00 ± 0.100 V 2.70 ± 0.100 V 2.70 ± 0.100 V 2.80 ± 0.100 V 3.00 ± 0.100 V Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Available Unavailable Available Unavailable Available Available Available Available Available Available Available Available Available Available Available Unavailable specified above. 2. x: G or U y: S or U 3. Please select products of environmental code = U for Sn 100%, halogen-free products. 4 Seiko Instruments Inc.

Rev.5.0_01 BATTERY PROTECTION IC FOR 3-SERIAL- OR 4-SERIAL-CELL PACK S-8254A Series Pin Configuration COP VMP DOP VINI CDT CCT VSS NC 1 2 3 4 5 6 7 8 16-Pin TSSOP Top view 16 15 14 13 12 11 10 9 VDD VC1 VC2 VC3 VC4 CTL SEL NC Figure 2 Table 2 Description Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Symbol COP VMP DOP VINI CDT CCT VSS NC *1 NC *1 SEL CTL VC4 VC3 VC2 VC1 VDD FET gate connection pin for charge control (Nch open drain output) Pin for voltage detection between VC1 and VMP (Pin for overcurrent 3 detection) FET gate connection pin for discharge control FET (CMOS output) Pin for voltage detection between VSS and VINI (Pin for overcurrent detection 1,2) Capacitor connection pin for delay for overdischarge detection, delay for overcurrent detection 1 Capacitor connection pin for delay for overcharge current Input pin for negative power supply, Connection pin for battery 4’s negative voltage No connection No connection Pin for switching 3-series or 4-series cell VSS level: 3-series cell, VDD level : 4-series cell Control of charge FET and discharge FET Connection pin for battery 3’s negative voltage, Connection pin for battery 4’s positive voltage Connection pin for battery 2’s negative voltage, Connection pin for battery 3’s positive voltage Connection pin for battery 1’s negative voltage, Connection pin for battery 2’s positive voltage Connection pin for battery 1’s positive voltage Input pin for positive power supply, Connection pin for battery 1’s positive voltage *1. The NC pin is electrically open. The NC pin can be connected to VDD or VSS. Seiko Instruments Inc. 5

BATTERY PROTECTION IC FOR 3-SERIAL- OR 4-SERIAL-CELL PACK S-8254A Series Rev.5.0_01 Absolute Maximum Ratings Item Input voltage between VDD and VSS Input pin voltage VMP pin input voltage DOP pin output voltage COP pin output voltage Power dissipation Symbol VDS VIN VVMP VDOP VCOP PD Topr Tstg Table 3 Applied pin ⎯ VC1, VC2, VC3, VC4, CTL, SEL, CCT, CDT, VINI (Ta = 25°C unless otherwise specified) Absolute Maximum Ratings VSS − 0.3 to VSS + 26 Unit V VSS − 0.3 to VDD + 0.3 V VMP DOP COP ⎯ ⎯ ⎯ ⎯ VSS − 0.3 to VSS + 26 VSS − 0.3 to VDD + 0.3 VSS − 0.3 to VSS + 26 V V V 400 (When not mounted on board) mW mW °C °C 1100*1 Operating ambient temperature Storage temperature *1. When mounted on board Caution The absolute maximum ratings are rated values exceeding which the product could suffer [Mounted board] (1) Board size : 114.3 mm × 76.2 mm × t1.6 mm (2) Board name : JEDEC STANDARD51-7 − 40 to + 85 − 40 to + 125 physical damage. These values must therefore not be exceeded under any conditions. 1200 1000 800 600 400 ] W m [ ) D P ( n o i t i a p s s D i r e w o 200 0 P 0 50 150 Ambient Temperature (Ta) [°C] 100 Figure 3 Power Dissipation of Package (When Mounted on Board) 6 Seiko Instruments Inc.

Rev.5.0_01 BATTERY PROTECTION IC FOR 3-SERIAL- OR 4-SERIAL-CELL PACK S-8254A Series Electrical Characteristics Table 4 (1 / 2) (Ta = 25°C unless otherwise specified) Item Symbol Conditions Min. Typ. Max. Unit [ DETECTION VOLTAGE ] Overcharge detection voltage n (n = 1, 2, 3, 4) Overcharge release voltage n (n = 1, 2, 3, 4) Overdischarge detection voltage n (n = 1, 2, 3, 4) Overdischarge release voltage n (n = 1, 2, 3, 4) 3.9 V to 4.4 V, Adjustable 3.8 V to 4.4 V, Adjustable VCL ≠ VCU VCL = VCU 2.0 V to 3.0 V, Adjustable 2.0 V to 3.4 V, Adjustable VDL ≠ VDU VDL = VDU VCUn VCLn VDLn VDUn VCLn VDLn VCUn − 0.025 VCUn VCLn VCLn − 0.05 VCLn − 0.025 VDLn − 0.08 VDUn − 0.10 VDUn − 0.08 VIOV1 − 0.025 VIOV1 0.4 0.5 VVC1 VVC1 − 1.5 − 1.2 − 1.0 − 0.5 VDUn VDUn 0 0 1.0 100 VCUn + 0.025 VCLn + 0.05 VCLn + 0.025 VDLn + 0.08 VDUn + 0.10 VDUn + 0.08 VIOV1 + 0.025 0.6 VVC1 − 0.9 1.0 0.5 1.5 150 5 0.4 100 ⎯ 0.4 0.5 10 1 15 1.6 300 600 0.8 0.7 1 1.5 1.1 1.5 450 900 1800 V V V V V V V V V mV / °C mV / °C s ms ms ms μs V V MΩ kΩ Test circuit 2 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 4 4 5 5 Overcurrent detection voltage 1 Overcurrent detection voltage 2 Overcurrent detection voltage 3 Temperature coefficient 1 *1 Temperature coefficient 2 *2 [ DELAY TIME ] Overcharge detection delay time Overdischarge detection delay time Overcurrent detection delay time 1 Overcurrent detection delay time 2 Overcurrent detection delay time 3 [ 0 V BATTERY CHARGE FUNCTION ] 0 V battery charge starting charger voltage 0 V battery charge inhibition battery voltage [ INTERNAL RESISTANCE ] Resistance between VMP and VDD Resistance between VMP and VSS 0.05 V to 0.3 V, Adjustable VIOV1 VIOV2 VIOV3 TCOE1 Ta = 0°C to 50°C *3 TCOE2 Ta = 0°C to 50°C *3 ⎯ ⎯ tCU tDL CCT pin capacitance = 0.1 μF CDT pin capacitance = 0.1 μF 0.5 50 tIOV1 CDT pin capacitance = 0.1 μF tIOV2 tIOV3 ⎯ FET gate capacitance = 2000 pF V0CHA 0 V battery charging available V0INH RVMD RVMS 0 V battery charging unavailable ⎯ ⎯ Seiko Instruments Inc. 7

BATTERY PROTECTION IC FOR 3-SERIAL- OR 4-SERIAL-CELL PACK S-8254A Series Rev.5.0_01 Item [ INPUT VOLTAGE ] Operating voltage between VDD and VSS CTL input voltage “H” CTL input voltage “L” SEL input voltage “H” SEL input voltage “L” [ INPUT CURRENT ] Current consumption on operation Current consumption at power down VC1 pin current VC2 pin current VC3 pin current VC4 pin current CTL pin current “H” CTL pin current “L” SEL pin current “H” Table 4 (2 / 2) Symbol Conditions VDSOP Output voltage of DOP and COP fixed VCTLH VCTLL VSELH VSELL IOPE ⎯ ⎯ ⎯ ⎯ V1 = V2 = V3 = V4 = 3.5 V IPDN V1 = V2 = V3 = V4 = 1.5 V IVC1 V1 = V2 = V3 = V4 = 3.5 V IVC2 V1 = V2 = V3 = V4 = 3.5 V IVC3 V1 = V2 = V3 = V4 = 3.5 V IVC4 V1 = V2 = V3 = V4 = 3.5 V ICTLH V1 = V2 = V3 = V4 = 3.5 V, ICTLL V1 = V2 = V3 = V4 = 3.5 V, ISELH V1 = V2 = V3 = V4 = 3.5 V, ISELL V1 = V2 = V3 = V4 = 3.5 V, VSEL = VDD VCTL = VDD VCTL = VSS Min. 2 VDD × 0.8 ⎯ VDD × 0.8 ⎯ ⎯ ⎯ ⎯ − 0.3 − 0.3 − 0.3 ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ 12 ⎯ 1.5 0 0 0 ⎯ − 0.4 − 0.2 ⎯ ⎯ − 0.1 (Ta = 25°C unless otherwise specified) Typ. Max. Unit Test circuit 24 ⎯ VDD × 0.2 ⎯ VDD × 0.2 30 0.1 3 0.3 0.3 0.3 0.1 ⎯ 0.1 V V V V V μA μA μA μA μA μA μA μA μA 2 2 2 2 2 1 1 5 5 5 5 5 5 5 SEL pin current “L” [ OUTPUT CURRENT ] COP pin leakage current COP pin sink current DOP pin source current DOP pin sink current *1. Voltage temperature coefficient 1 : Overcharge detection voltage *2. Voltage temperature coefficient 2 : Overcurrent detection voltage 1 *3. Since products are not screened at high and low temperature, the specification for this temperature range is guaranteed by design, not tested in production. VSEL = VSS VCOP = 24 V VCOP = VSS + 0.5 V VDOP = VDD − 0.5 V VDOP = VSS + 0.5 V ⎯ 0.1 ⎯ ⎯ ⎯ μA μA μA μA μA ⎯ ⎯ ⎯ ⎯ ⎯ ICOH ICOL IDOH IDOL ⎯ 10 10 10 5 5 5 5 5 8 Seiko Instruments Inc.

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