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AXP209 View Datasheet(PDF) - Unspecified

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AXP209 Datasheet PDF : 45 Pages
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2. Features
AXP209
Enhanced single Cell Li-Battery and Power System Management IC
Intelligent Power Select (IPS)
o Wide input voltage range: 2.9V ~ 6.3V
(AMR:-0.3V ~ 11V)
o Configurable Intelligent Power Delect
"IPS™" System
o Adaptive USB (Support USB3.0) Or AC
adapter with current limiting (4.4V /
900mA / 500mA / 100mA)
o Battery path is less than equivalent
resistance of 75mΩ
Fully Integrated PWM Charger
o Maximum charge current to 1.8A
o Support battery temperature monitoring
o Full support of USB compatible chargers
(including USB 3.0)
o High charging accuracy error of less than
0.5%
o Supports 4.1V/4.15V/4.2V/4.36V and
other battery voltages
o Automatic charging process control and
management
o Can directly drive LED to indicate
charging status
o The system automatically adjusts the
charge current to suit the system load
Backup battery support
o Provision for a backup battery input
supply an RTC Module
o Supports backup battery charging, with
adjustable charging current.
2 Synchronous Buck Converters
o DC-DC1: The PWM charger
o DC-DC2: 1.6A 0.7-2.275V, adjustable
25mV / step, supporting VRC (Voltage
ramp control)
o DC-DC3: 1.2A 0.7-3.5V, adjustable 25mV
/ step.
5 Linear regulators (LDO)
o LDO1:30mA Always one
o LDO2: 200mA Low Noise LDO,1.8V
~3.3V, Adjustable 100mV / step
o LDO3: 200mA 0.7-3.5V Adjustable,
25mV / step
o LDO4: 200mA Low Noise LDO,1.8V ~
3.3V Adjustable 100mV / step
o LDO5: 50mA Low Noise LDO, 1.8-
3.3V Adjustable, 100mV / step.
Timer (Timer)
o 7bit Timer, Timing range 1 ~ 127
minutes
o Timer Interrupt Output
Signal Acquisition System (Signal Capture)
o Built-in 12-channel 12 Bit ADC
o Accept two external analog signal inputs
o Provide battery and external power supply
voltage and current data
o Built-Precision Coulomb Counter and Fuel
gauge system
o Provide a wealth of power management
information, such as instantaneous power
(mA or mW), the remaining battery
capacity (% or mAh), The state of charge
(%) and remaining battery or charging time
o Two-level low-battery warning and
protection
o Provides chip die temperature data
• Application Processor Interface (Host Interface)
o Host can exchange data through the TWSI
(I2C)
o Flexible interrupt and sleep management
o Flexible pin function, multiple GPIO can be
set as IO, ADC and other functions
o Built-in configurable timer
o Provide 12 sets of registers that can retain
data when the system is shut down.
• System Management (System Management)
o Support soft and hard reset
o Support for soft and hard shutdown
o Support for external wakeup triggers
o Supports output voltage monitoring and
self-diagnostic function
o Output PWROK indication for system
reset or shutdown
o External
power
detection
(insertion/removal/sufficient
current
capacity)
o Supports soft power on via GPIOs
o Over / under voltage protection (OVP /
UVP)
o Overcurrent protection (OCP)
o Over-temperature protection (OTP)
o Support OTG VBUS power state
setting / monitoring
Highly Integrated
o Internal precision voltage reference
(0.5%)
o Built-in MOSFET
o Timing and the output voltages can be
customized
Decryption module (Decryption)
o 128bit OTP password storage
o Dynamic real-time decryption algorithm
Confidential
Page 4/45
 

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