s-8243b Seiko Instruments Inc., s-8243b Datasheet
s-8243b
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s-8243b Summary of contents
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... TSSOP The S-8243A/B Series is a protection IC for lithium-ion rechargeable battery. The S-8243A Series protects 3-series, the S-8243B Series protects 4-series cell pack from the overcharge, overdischarge, overcurrent voltages. This IC has a high-accuracy battery protection circuit and a battery monitor amplifier, and also a voltage regulator which operates the microcomputer or gas gauge IC ...
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... BATTERY PROTECTION IC FOR 3-SERIAL OR 4-SERIAL CELL PACK S-8243A/B Series Block Diagrams 1. S-8243A Series VDD DOP COP 660 kΩ 440 kΩ VMP 660 kΩ VC1 VC2 VC3 VSS Remark1. Diodes in the figure are parasitic diodes. 2. Numerical values are typical values. 2 Battery protection ...
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... BATTERY PROTECTION IC FOR 3-SERIAL OR 4-SERIAL CELL PACK Rev.2.5 _00 2. S-8243B Series VDD DOP COP 660 kΩ 440 kΩ VMP 660 kΩ VC1 VC2 VC3 VSS Remark1. Diodes in the figure are parasitic diodes. 2. Numerical values are typical values. Battery protection DOP, COP, ...
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... Table 1 S-8243A Series (For 3-Serial Cell) Hysteresis voltage for Overdischarge overcharge detection detection voltage [ −0.15 ±0.05 V 2.40 ±0.08 V −0.35 ±0.05 V 2.40 ±0.08 V Table 2 S-8243B Series (For 4-Serial Cell) Hysteresis voltage for Overdischarge overcharge detection detection voltage [ −0.25 ±0.05 V 2.40 ±0.08 V −0.15 ±0.05 V 2.40 ±0.08 V −0.25 ±0.05 V 2.40 ± ...
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... DOP 2 15 COP 3 14 VMP 4 13 VC1 5 12 VC2 6 11 VC3 7 10 VSS 8 9 Figure 3 Table 3 Pin description (S-8243A Series) Description Table 4 Pin description (S-8243B Series) Description Seiko Instruments Inc. S-8243A/B Series VREG CTL1 CTL2 CTL3 CTL4 VBATOUT CCT CDT 5 ...
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... Board size : 114.3 mm × 76.2 mm × t1.6 mm (2) Board name : JEDEC STANDARD51-7 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. Figure 4 Power Dissipation of Package (When Mounted on Board) 6 ...
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... BATTERY PROTECTION IC FOR 3-SERIAL OR 4-SERIAL CELL PACK Rev.2.5 _00 Electrical Characteristics 1. S-8243A Series Item Symbol BATTERY PROTECTION Overcharge detection voltage Hysteresis voltage n of overcharge detection Overdischarge detection voltage Hysteresis voltage n of Overdischarge detection ...
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... Temperature coefficient for detection and release voltage is applied to overcharge detection voltage n, overcharge release voltage n, overdischarge detection voltage n, and overdischarge release voltage n. *2. Temperature coefficient for overcurrent detection voltage is applied to over current detection voltage 1 and 2. *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. 8 ...
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... BATTERY PROTECTION IC FOR 3-SERIAL OR 4-SERIAL CELL PACK Rev.2.5 _00 2. S-8243B Series Item Symbol DETECTION VOLTAGE Overcharge detection voltage Hysteresis voltage n of overcharge detection Overdischarge detection voltage Hysteresis voltage n of overdischarge detection ...
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... Sink current COP Source current DOP Sink current DOP Source current V BATOUT Sink current V BATOUT Applied to S-8243BAEFT and S-8243BAFFT Item DELAY TIME Overcharge detection delay time Overdischarge detection delay time t Overcurrent detection delay time 1 Overcurrent detection delay time 2 Overcurrent detection delay time 3 ...
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... Rev.2.5 _00 Test Circuits In this chapter test methods are explained for the case of S-8243B series, which is designed for 4-serial cell pack. For the case of S-8243A series, which is designed for 3-serial cell, voltage source V2 should be shorted, V3 should be read as V2, and V4 as V3. ...
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... Overcurrent detection voltages Starting condition 3.5 V, VMP = VDD, and the CDT pin is open. The DOP pin voltage thus provides “Low” The overcurrent detection voltage 1, VIOV1 is defined by the voltage difference VDD − VMP at which the DOP pin voltage becomes “ ...
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... One of the 0 V battery charge starting charger voltage and 0 V battery charge inhibition battery voltage is applied to each product according to the 0V battery charging function. Starting condition for a product in which 0 V battery charging is available. The COP pin voltage should be lower than V ...
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... Pin current for CTL2 at “High” Pin current for CTL2 at “Low” Pin current for CTL3 and CTL4 can be obtained in the same manner as in the CTL2. Pin current for COP at “High” pin current for COP at “Low” Pin current for DOP at “ ...
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... BATTERY PROTECTION IC FOR 3-SERIAL OR 4-SERIAL CELL PACK Rev.2.5 _00 VREG 16 1 VDD 2 DOP CTL1 15 3 COP CTL2 14 4 VMP CTL3 VC1 CTL4 VC2 VBATOUT VC3 CCT VSS CDT Test circuit 5 R1=1 MΩ 1 VDD 2 DOP 3 COP 4 VMP V1 5 VC1 ...
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... S-8243 enters the overcurrent condition in which the DOP pin voltage becomes V IOV1 level to turn off the discharging FET to stop discharging, the COP pin becomes high impedance and is pulled up to EB+ pin voltage by an external resistor to turn off the charging FET to stop charging, and the VMP pin is pulled voltage by the internal resistor R ...
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... When one of the battery voltages is lower than V Caution When the VDD pin voltage is lower than minimum of V guaranteed Delay time setting Overcharge detection delay times (t Overdischarge detection delay times (t external capacitor at CDT pin. Overcurrent detection delay time 2,3 (t S-8243AAC, S-8243AAD, S-8243BAE, S-8243BAF t [s] = Delay factor ( CU t [ms] ...
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... S-8243A/B Series 4. CTL pins The S-8243 has four control pins. The CTL1 and CTL2 pins are used to control the COP and DOP pin output voltages. CTL1 takes precedence over CTL2. CTL2 takes precedence over the battery protection circuit. The CTL3 and CTL4 pins are used to control the VBATOUT pin output voltage ...
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... V OUT VREG pin votage V SS Charger connected Load connected *2 Mode *1. State depends on CTL3 and CTL4 input levels. Refer to Figure 9. *2. <1>: Normal mode, <2>: Overcharge mode, <3>: Overdischarge mode Remark The charger is assumed to charge with a constant current. V High-Z Overcharge detection delay time ( <1> <2> ...
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... V SS Charger connected Load connected *3 Mode * (typ.) RETURN DD *2. State depends on CTL3 and CTL4 input levels. Refer to Figure 9. *3. <1>: Normal mode, <2>: Overcurrent mode Remark The charger is assumed to charge with a constant current High-Z *1 RETURN Overcurrent detection ...
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... Voltage OPEN CTL2 pin OUT Voltage OPEN V SS *1. State depends on each battery voltage and the VMP pin voltage. *2. State depends on CTL3 and CTL4 input levels. Refer to Figure High-Z High-Z High-Z High-Z Figure 8 Seiko Instruments Inc. ...
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... COP pin *1 (1) voltage OUT S-8243A (3-serial cell) V BAT VBATOUT V pin voltage OFF V1 offset OUT S-8243B (4-serial cell) V BAT VBATOUT V pin voltage OFF V1 offset VREG pin OUT voltage CTL3 pin OUT voltage OPEN ...
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... Caution1. No resistance should be inserted in the power supply pin VDD. 2. The above constants are subject to change without prior notice has not been confirmed whether the operation is normal or not in circuits other than the above example of connection. In addition, the example of connection shown above and the constant will not guarantee successful operation ...
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... BATTERY PROTECTION IC FOR 3-SERIAL OR 4-SERIAL CELL PACK S-8243A/B Series 2. S-8243B Series Discharging FET R DOP R VC1 R VC2 R VC3 C VSS R VSS Table 12 Constants for External Components No. Part 1 R VC1 2 R VC2 3 R VC3 4 R VSS 5 R DOP 6 R COP 7 R VMP 8 R CTL1 ...
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... Rev.2.5 _00 Precautions • Pay attention to the operating conditions for input/output voltage and load current so that the power loss in the IC does not exceed the package power dissipation. • Do not apply an electrostatic discharge to this IC that exceeds the performance ratings of the built-in electrostatic protection circuit. • ...
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... BATTERY PROTECTION IC FOR 3-SERIAL OR 4-SERIAL CELL PACK S-8243A/B Series The Example of Application Circuit 1. S-8243A Series 2. S-8243B Series Caution The above connection example will not guarantee successful operation. Perform thorough evaluation using the actual application. 26 CTL1 1 VDD VREG 16 S-8243A 2 DOP CTL1 15 3 COP ...
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... I DD OPE 120 100 −40 − [°C] S-8243BAF I PDN DD 0.10 0.08 0.06 0.04 0.02 0.00 −40 − [°C] S-8243BAF V CL 4.05 4.03 4.01 3.99 3.97 3.95 −40 − [°C] S-8243BAF V 0.225 0.220 0.215 0.210 0.205 0.200 0.195 0.190 0.185 0.180 0.175 10 12 ...
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... CT S-8243BAF DT C 250 200 150 100 50 0 −40 − [°C] S-8243BAF t 4.0 3.5 3.0 2.5 2.0 1.5 − 40 − [°C] Seiko Instruments Inc. S-8243BAF − Temp IOV2 Reference 0.575 0.550 0.525 0.500 0.475 0.450 0.425 10 S-8243BAF − 2.5 2.0 1.5 1.0 0.5 0.0 0.8 1.0 −40 −20 S-8243BAF − ...
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... OUT 4.0 3.0 85°C 25°C 2.0 1 − 40°C 0 [mA] OUT S-8243BAF I COP 3.5 7.0 V [V] COP S-8243BAF I DOP 7.2 0 3.5 7.0 V [V] DOP S-8243BAF V = 0→ 25° µ OUT 3.3 100 µ ...
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... V V OFF2 165 160 V 155 OFF3 V OFF4 150 5 − 40 − [°C] Seiko Instruments Inc. S-8243BAF − Temp OFF 0.202 0.201 GAMP3 OFF1 0.200 GAMP2 0.199 0.198 1 2 Rev.2.5 _00 GAMP − V BAT BAT ...
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... Use of the information described herein for other purposes and/or reproduction or copying without the express permission of Seiko Instruments Inc. is strictly prohibited. The products described herein cannot be used as part of any device or equipment affecting the human body, such as exercise equipment, medical equipment, security systems, gas equipment, or any apparatus installed in airplanes and other vehicles, without prior written permission of Seiko Instruments Inc ...