The Battery Charging Control and Alternative Intergrated Circuit of the Bq24700、Bq24701 Laptop

Published:2011/5/11 1:51:00 Author:Borg | Keyword: Battery Charging Control, Alternative Intergrated Circuit | From:SeekIC

Bq24700、Bq24701 are highly intergrated battery charging control and alternative intergrated circuit specailly developed for laptops which can automatically adjust the charging current by using their DPMs and AC adapters,therefore, the charging time can be shortened, besides, cheap adapters can be installed in it.1.pin functions and relevent dataBq24700、Bq24701 are packaged with pinnings of TSSOP whose pin functions and data are listed in Table 1. Table 1 pin functions and data of Bq24700 2.typical application circuit The typical application circuit of Bq24700 chips is shown in Figure 1, whose input point connects with the AC adapter and output point with the laptop. VT2 is the adapter alternative switch, and VT3 the battery alternative switch. Figure 1 The typical application circuit of Bq24700 chips



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