AXP209
Enhanced single Cell Li-Battery and Power System Management IC
Table of Contents
1. Overview ........................................................................................................................................3
2. Features .........................................................................................................................................4
3. Typical Application........................................................................................................................5
4. Absolute Maximum Ratings .........................................................................................................6
5. Electrical Characteristics................................................................................................................6
6. Typical Characteristics...................................................................................................................9
7. Pin Definition............................................................................................................................... 12
8. Functional Block Diagram........................................................................................................... 14
9. Control and Operation................................................................................................................ 15
9.1 Power On / Off & Reset..................................................................................................... 15
9.2 Power path management (IPS).......................................................................................... 17
9.3 Adaptive PWM Charger ..................................................................................................... 19
9.4 Backup battery ...................................................................................................................22
9.5 Multi-channel power outputs............................................................................................23
9.6 Default Voltage / Timing Settings..................................................................................... 24
9.7 Signal Acquisition System .................................................................................................25
9.8 Multifunction Pin Description ........................................................................................... 25
9.9 Timer ................................................................................................................................... 25
9.10 Decryption ........................................................................................................................26
9.11 HOST Interface and interrupt(TWSI and IRQ).................................................................26
9.12 Register.............................................................................................................................28
10. Package...............................................................................................................................................................45
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