View hm4051adr-e datasheet:

1A Lithium Ion Battery Linear Charger HM4051ADR General Description Features ● Reverse connection protection of positive and HM4051ADR is a complete constant-current/constant negative electrode of battery voltage linear charger for single cell lithium-ion batteries. ● BAT short circuit IC stop working With a thermally enhanced 8-PIN DFN package on the ● OVP VIN 7.0V bottom and low external component count make the ● Programmable charge current up to 1A HM4051ADR ideally suited for portable applications. ●No MOSFET sense resistor or blocking diode Furthermore the HM4051ADR is specifically designed to required work within USB power specifications. ●Complete linear Charger in DFN8 Package for No external sense resistor is needed and no blockin