XT2059 Datasheet | Silinktek

Description The XT2059 is charging management circuit that can be programmed through an external resistor constant current / constant voltage charging. The device includes an internal power transistor, does not need external current sense resistor and blocking diode in applications. XT2059 requires minimal external ponents, and meet the USB bus specification, is very suitable for portable applications in the field. Thermal modulation circuit can control the internal chip temperature in a safe range when the device power dissipation be relatively large or the ambient temperature be higher. The output voltage can be programmed by an external resistor. Charging current is set by an external resistor. When the input voltage (AC adapter or USB power supply) power is lost, XT2059 automatically enters a low power sleep mode, then the battery current consumption is less than 0.1μA. Built-in protection circuits against irrigation, when the battery voltage is higher than the input voltage, automatically turn off built-in power MOSFET. Other features include low input voltage latch, automatic recharge, the battery temperature monitoring, Built - in OVP protection and charge status / charge status indication functions. The internal use of the patented technology is to realize protecting reverse battery. When the battery is reversed, stop charging, indicator The XT2059 adopted the thermally enhanced e SOP-8. - Features - In the package allows the range of programmable charge current up to 1.2A above - No MOSFET, sense resistor or blocking diode required - plete linear charger in small package for single cell lithium-ion batteries - Constant-current/constant-voltage operation with thermal regulation to maximize charge rate without risk of overheating - Charging voltage can be adjusted by the FB - Monitor output charge current - Charging status indicator and full status flag - 3/10 charge current termination - Automatic recharge - 40µA supply current in shutdown - 0.7 times the...