AXP202 datasheet(2/4 Pages) XPOWER

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AXP202

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APPLICATIONS



Handhold mobile devices

Smart cell phone, PMP/MP4, digital camera,

handhold navigation devices GPS, PDA, digital

broadcast TV receiver



MID(Mobile internet device)



Digital photo Frame，portable DVD player,

UMPC, and UMPC-like ，Learning machine



Application Processor systems



Other

battery and

multi-power

applications

DESCRIPTION

AXP202 is designed to be a highly-integrated power

system management IC that is optimized for

applications requiring single-cell Li-battery (Li-

Ion/Polymer) and multiple output DC-DC converters. It

is offering an easy-to-use and flexible complete solution

which can fully meet the increasingly complexity of

accurate power control required by modern application

processor system.

AXP202 comprises an adaptive USB-Compatible PWM

charger, 2 BUCK DC-DC converters, 5 LDOs, multiple 12-

bit ADCs of Voltage, current and temperature as well as

4 configurable GPIOs. To guarantee the safty and

stability of power system,

AXP202 has integrated various protection circuits

such as Over voltage Protection(OVP)/Under voltage

Protection(UVP) 、Over temperature

protection(OTP)、Over current protection(OCP). With

Intelligent Power Select, IPS™ circuits, AXP202 can

distribute power safely and transparently among

external AC-adapter, Li-battery and loaded application

system, and it can still work normally when there is no

battery (deeply discharged/infective battery) but only

external input power source.

The AXP202 provides a small, simple solution for

obtaining power from three different power sources,

single-cell Li-Ion battery, USB port, and AC-adapter, and

it can support rechargable backup battery too. To

ensure compatibility with a wide range of system

processors,

AXP202 uses a Two Wire Serial Interface

(TWSI),through which application processor is capable

of enabling/disabling power rails, programming voltage,

visiting internal registers as well as measurement data

(including Fuel Gauge). With the power monitoring

results of high precision (1%, determined by the 1%

BIAS resistance), end users will be always posted with

the real-time power consumption, which can bring

them an unprecedented experiences of power

management.

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