General Description ..................................................................................................................................... p. 01
Functional Block Diagram ............................................................................................................................ p. 04
Ordering Information .................................................................................................................................... p. 05
Pin Configuration ......................................................................................................................................... p. 06
Pin Descriptions ........................................................................................................................................... p. 07
Absolute Maximum Ratings ......................................................................................................................... p. 11
I
2
C Interface Electrical Characteristics ........................................................................................................ p. 12
Global Register Map .................................................................................................................................... p. 13
Register and Bit Descriptions ...................................................................................................................... p.18
Interrupt Descriptions................................................................................................................................... p. 42
Step-Down DC/DC and LDO Output Voltage Setting .................................................................................. p. 44
VBBAT Output Voltage Setting .................................................................................................................... p. 44
Charger Voltage Setting .............................................................................................................................. p. 44
Fast Charge Current Setting ........................................................................................................................ p. 44
Non-Linear Duty Setting .............................................................................................................................. p. 45
Step-Up DC/DC Voltage Setting .................................................................................................................. p. 45
System Control Electrical Characteristics.................................................................................................... p. 46
Step-Down DC/DC Electrical Characteristics .............................................................................................. p. 47
Step-Up DC/DC Electrical Characteristics................................................................................................... p. 48
Low-Noise LDO Electrical Characteristics ................................................................................................... p. 49
Single-Cell Li+ Charger Electrical Characteristics ....................................................................................... p. 50
Back-Up Battery Charger Electrical Characteristics .................................................................................... p. 52
Always-On Low Power LDO Electrical Characteristics ............................................................................... p. 52
Real Time Clock Electrical Characteristics .................................................................................................. p. 53
Open-Drain Driver Electrical Characteristics ............................................................................................... p. 53
TSC ADC Electrical Characteristics ............................................................................................................ p. 54
Typical Performance Characteristics ........................................................................................................... p. 55
Application Information ................................................................................................................................ p. 60
System and Control Information....................................................................................................... p. 60
Device Power States ........................................................................................................................ p. 60
System Control Signals .................................................................................................................... p. 60
Control Sequences ........................................................................................................................... p. 61
House Keeping Functions ............................................................................................................... p. 62
Step-Down DC/DC Regulators .................................................................................................................... p. 64
General Description.......................................................................................................................... p. 64
Manipulation ..................................................................................................................................... p. 64
Summary of Key Specifications ....................................................................................................... p. 64
Component Selection ....................................................................................................................... p. 65
PCB Layout Considerations............................................................................................................. p. 65
Configurable Step-Up DC/DC Regulator ..................................................................................................... p. 66
General Description.......................................................................................................................... p. 66
Voltage Regulation Option ............................................................................................................... p. 66
Current Regulation Option ............................................................................................................... p. 66
Component Selection ...................................................................................................................... p. 67
PCB Layout Considerations............................................................................................................. p. 67
Low-Noise, Low-Dropout Linear Regulators................................................................................................ p. 68
General Description.......................................................................................................................... p. 68
Output Current Limit ......................................................................................................................... p. 68
Configuration Options....................................................................................................................... p. 68
OK[ ] and Output Fault Interrupt ....................................................................................................... p. 68
The Always-On LDO and the Backup Battery Charger ....................................................................p. 69
Component Selection ....................................................................................................................... p. 69
PCB Layout Considerations ............................................................................................................. p. 70
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Open-Drain Drivers ...................................................................................................................................... p. 71
Operation Modes .............................................................................................................................. p. 71
Typical Application Consideration .................................................................................................... p. 72
TSD ADC ..................................................................................................................................................... p. 73
4-wire Touch Screen Interface ........................................................................................................ p. 73
Internal Reference ........................................................................................................................... p. 74
TSC ADC Registers ......................................................................................................................... p. 75
Acquisition Configuration ................................................................................................................. p. 75
Interrupt and Status Bits ................................................................................................................... p. 75
Application Program Consideration .................................................................................................. p. 75
Real Time Clock .......................................................................................................................................... p. 76
Single-Cell Li+ Battery Charger ................................................................................................................... p. 78
Program and Manipulate .................................................................................................................. p. 78
Power Path Management ................................................................................................................. p. 78
CC/CV Charging Profile ................................................................................................................... p. 79
Summary of Key Specifications ....................................................................................................... p. 79
Charger State-Machine .................................................................................................................... p. 80
Charge State Output ........................................................................................................................ p. 81
Safe Charge and Operation ............................................................................................................. p. 81
Typical Application Consideration .................................................................................................... p. 82
Thermal Analysis ......................................................................................................................................... p. 85
Package Outline and Dimensions ............................................................................................................... p. 86
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