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SC8201 Datasheet(PDF) 3 Page - Silan Microelectronics Joint-stock |
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SC8201 Datasheet(HTML) 3 Page - Silan Microelectronics Joint-stock |
3 / 9 page SC8201 PIN CONFIGURATION PIN DESCRIPTIONS PIN No. Symbol I/O Description 1 OD O FET gate connection pin for discharge control. 2 CSI I/O Detecting pin for current sense, charger detect. 3 OC O FET gate connection pin for charge control. 4 TD I Test pin for delay time. 5 VDD I Positive power input pin. 6 VSS Negative power input pin. I FUNCTION DESCRIPTIONS Normal state If VODL<VDD<VOCU and VCH<VCSI<VOI1, M1 and M2 (refer to the typical application circuit, they are used to control the charge/discharge state) are both turned on. The charging and discharging processes can be operated normally at this time. Overcharge Detection When enter overcharge state from normal state, the battery voltage can be detected from VDD. When the battery voltage VDD is larger than VOCU over a delay time of TOC, then enter the overcharge state from normal state and M2 is to be turned off. Release of Overcharge State There are two ways to return to normal state from overcharge state. • If the battery is self discharging and VDD<VOCR occurs, M2 is to be turned on and back to normal state. • Remove the charger and connected to a load. If VOCR<VDD<VOCU and VCSI>VOI1 occurs, M2 is to be turned on and back to normal state. HANGZHOU MICROELECTRONICS CO.,LTD REV:1.3 2008.06.25 Http://www.silan.com.cn Page 3 of 10 |
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