Summary
The AXP192 is a highly integrated power system management chip for single-cell lithium batteries (lithium-ion or lithium-polymer) and requires multiple power conversion Output applications, providing a complete power solution that is easy to use yet flexible to configure to meet todays increasingly complex application processing System requirements for relatively complex and precisely controlled power supplies.
AXP192 integrates an adaptive USB-Compatible charger, 3-channel step-down converter (Buck DC-DC converter, 4-channel linear regulator (LDO), voltage / current / temperature monitoring and other multi-channel 12-Bit ADC. To ensure the safety and stability of the power system, The AXP192 also incorporates over / under voltage (OVP / UVP), over temperature (OTP), over current (OCP) protection circuits. The AXP192s Intelligent Power Select (IPS ™) circuitry is available in USB and external AC adapters, lithium Safely and transparently distributes power between the pool and the application system load, and with only the external input power without a battery (or battery over / under) The case can also make the application system work properly.
The AXP192 has three input capabilities, external adapter and USB, as well as battery to support rechargeable battery backup. AXP192 provides a two-wire serial communication interface with the host: Two Wire Serial Interface (TWSI), the application processor can Through which to turn certain power outputs on and off, set their voltages, access internal registers and various measurement data (including Fuel Gauge. High-precision (0.5%) power measurement data to facilitate consumers to more clearly grasp the real-time power usage, to bring consumers before Unprecedented device power experience.
The AXP192 is available in a 6mm x 6mm 48-pin QFN package.
 
Feature
• Power Management (IPS)
   o wide input voltage range:
      2.9V ~ 6.3V (AMR: -0.3V ~ 11V)
   o Configurable, efficient Smart Power Balance "IPS ™" system
   o Adaptive USB or AC adapter pressure limiting
      (4.4V / 500mA / 100mA)
   o Internal ideal diode has an equivalent internal resistance of less than 100mΩ
• Fully integrated charger (Charger)
   o Built-in MOSFET maximum charging current up to 1.4A
   o Support battery temperature monitoring
   o fully support USB charging, in line with regulatory requirements
   o high charging accuracy, the error is less than 0.5%
   o Support 4.1V / 4.15V / 4.2V / 4.36V and other batteries
   o Automatic charging process control
   o Direct drive LED indicates charge status
   o According to the system load automatically adjusts the charging current
• Backup Battery
   o The backup battery can be used to power the RTC module
   o Support backup battery charging, you can set the charging current
• 3 Synchronous Buck Converters (DC-DCs)
   o DC-DC1: Adjustable between 0.7V ~ 3.5V,
      25mV / step, drive capacity 1.2A
   o DC-DC2: Adjustable between 0.7-2.275V,
      25mV / step, drive capacity 1.6A, support VRC
   o DC-DC3: Adjustable between 0.7-3.5V,
      25mV / step, drive capacity 0.7A
• 4 linear regulators (LDOs)
   o LDO1: 30mA, always active
   o LDO2: Low Noise LDO, 1.8V ~ 3.3V Adjustable,
      100mV / step, drive capacity 200mA
   o LDO3: Low Noise LDO, 1.8-3.3V Adjustable,
      100mV / step, drive capacity 200mA
   o LDOIO0: Low Noise LDO, 1.8-3.3V Adjustable,
      100mV / step, drive capacity 50mA
      Note: VRC, Voltage Ramp Control, voltage ramp
      Rate control. (Continue ...)
     
Application products
   handheld mobile device
      Smart mobile phone, PMP / MP4, number
      Code camera, digital camera, hand-held guide
      Air equipment GPS, PDA, handheld digital
      Radio and television receiver
   Mobile Internet Device MID
   digital photo frame, portable DVD player,
      UMPC ultra mobile computer
      UMPC-like, learning machine
   Application processor circuitry
      Application Processor systems
   Other battery and multi-power applications