SC4059 is programmed via an external resistor constant current / constant voltage charging charge management circuitry. The device includes an internal power transistor, the application does not require an external current sense resistor and blocking diode. SC4059 requires minimal external components, and comply with USB power specifications, ideally suited for portable applications. Thermal feedback in power operation or high ambient temperature is relatively high when the chip temperature control in a safe range. Output can be programmed via an external resistor voltage, charge current is set by an external resistor. When the input voltage (AC adapter or USB supply) is removed, SC4059 automatically enters a low-power sleep mode, the battery current consumption is less than 0.1μ A. Built-in anti-irrigation protection circuit, when the battery voltage is higher than the input voltage, the power automatically turns off the built-in MOSFET. Other features include input undervoltage lockout, automatic recharge, built-in OVP protection and charging / termination indicator functions. SC4059 internal use of the technology to achieve a battery with a patented anti-reverse protection. When the battery is reverse, stop charging, light body. SC4059 thermally enhanced eSOP-8. Features: 1 in the package is within the allowable range of programmable charge current up to 1.2A over 2 requires no external MOSFET, sense resistor and blocking diode 3 small size to achieve full alignment of the battery charge management four constant-current / constant voltage operation and adjust heat so that the maximum battery management effectiveness, there is no danger of overheating the charging voltage can be adjusted by 5 FB 6 7 charging current output monitor charge status indicator and full state flag 8 9 3/10 termination charge current automatically recharge 10 stops 40 A current work provides a programming voltage of 0.2 times 11 trickle charge threshold voltage of 12 soft start to limit inrush current current wide core source --- Luo Mobile:? 13425146336 Tel: 0755-29469758 27668758 E-mail: mk003@zgsemi.com Website: http: //www.zgsemi.com