AXP209-Enhanced single Cell Li-Battery and Power System Management IC

AXP209 is a highly integrated power management IC that provides easy and flexible power solution for applications that powered by single cell Li-battery (Li-ion or Li-polymer) and requiring multi-power outputs as well. It has fully met the increasingly complex needs of application processors on accurate power control.AXP209 integrates – an adaptive USB-Compatible PWM charger – 2-way step-down converter (Buck DC-DC converter) – 5-channel linear regulator device (LDO) voltage / current / temperature multi-channel 12-Bit ADC – 4 configurable GPIO. Sustaining Card power system security the stable – AXP209 integrated over / under voltage (OVP / UVP), over temperature (OTP), overcurrent protection (OCP) circuitThe Intelligent Power Select (Intelligent Power Select, IPS™) of AXP209can allocate power safely and transparently among USB, external AC adapter, Li-battery, and application loads. It also enables applications to work normally with the presence of only external input power and no batteries (or battery deeply discharged/damage).AXP209 is capable of three input methods: external adaptor input, USB input and battery input. It also supports rechargeable backup batteries.In addition, AXP209 comes with a Two Wire Serial Interface (TWSI), through which the application processor is capable of enabling/disabling some power outputs, programming the voltage, and visiting internal registers and measurement data (including Fuel Gauge). The high accuracy (1%, depending on the 1% accuracy of BIAS resistors) of power measurement enables consumers to know more about the real-time power consumption, providing them with unprecedented experience of power management.AXP209 is available in 6mm x 6mm 48-pin QFN package. Applications•Portable Devices: Smart Phone, PMP/MP4, Digital Camera, Camcorder, PND, PDA, PTV•Mobile Internet Devices xPad, MID•Digital Photo Frame, Portable DVD Player, Ultra-Mobile PC(UMPC) and UMPC-like,Entertaining and Education Machine•Application Processor Systems•Other battery and multi-power application systems