Be applied to lithium battery protection circuit of cell -phone

The utility model discloses a be applied to lithium battery protection circuit of cell -phone, include: B+ end, B end, P+ end, P end, battery protection circuit, prevent electrostatic circuit, identification circuit, ID end, temperature monitoring circuit and NTC end, the battery protection circuit includes: first resistance, lithium battery protection chip, control of charge and discharge chip, filter circuit, second resistance and first electric capacity, filter circuit includes parallelly connected second electric capacity and third electric capacity, and the appearance value of second electric capacity and third electric capacity differs two more than the order of magnitude. The utility model discloses a lithium battery protection chip and the cooperation of control of charge and discharge chip can effectively carry out filling, crossing the control and the protection of putting, overflowing to the lithium cell, be provided with filter circuit at lithium battery protection chip's VDD end and VSS end, prev