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SS6802 데이터시트(PDF) 1 Page - Silicon Standard Corp. |
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SS6802 데이터시트(HTML) 1 Page - Silicon Standard Corp. |
1 / 10 page TWO-CELL LITHIUM-ION 02/26/2008 Rev.1.00 www.SiliconStandard.com 1 BATTERY PROTECTION IC FEATURES Ultra-Low Quiescent Current at 10 µA (VCC=7V, VC=3.5V). Ultra-Low Power-Down Current at 0.2 µA (VCC =3.8V, VC=1.9V). Wide Supply Range: 2 to 18V. Precision Overcharge Protection Voltage 4.35V ± 30mV for the SS6802A 4.30V ± 30mV for the SS6802B 4.25V ± 30mV for the SS6802C Built-in Delay Circuits for Overcharge, Over-discharge and Overcurrent Protection. Overcharge and Overdischarge Delay Time can be Extended by External Capacitors. Built-in Cell-balancing Bleeding Network under Overcharge Condition. APPLICATIONS Protection IC for Two-Cell Lithium-Ion Battery Pack. DESCRIPTION The SS6802 battery protection IC is designed to protect lithium-ion batteries from damage due to overcharging, overdischarging, and overcurrent for two series cells in portable phones and laptop computers. It can be a part of the low-cost charge control system within a two-cell lithium-ion battery pack. Safe and full utilization charging is ensured by the accurate ±30mV overcharge detection. Three different specification values for overcharge protection voltage are provided for various protection requirements. The very low standby current drains little current from the cells while in storage. TYPICAL APPLICATION CIRCUIT 5 3 7 4 2 1 6 8 SS6802 *CTC & CTD are optional for delay time adjustment. **R1 & R2: Refer application informations. C2 1 µF *C TC CEM9926 *C TD VCC TC VC TD GND OC OD CS BATTERY 1 BATTERY 2 M1 CEM9926 C1 1 µF R6 1K M2 VBAT+ VBAT - R4 1M Q1 R5 1M R3 1M **R1 **R2 C3 0.01 µF Protection Circuit for Two-Cell Lithium-Ion Battery Pack SS6802 Pb-free; RoHS-compliant |
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