SWCS037G
– MAY 2008 – REVISED APRIL 2011
Contents
1
Introduction
........................................................................................................................ 9 1.1
Features
....................................................................................................................
101.2
TPS65920 and TPS65930 Device Block Diagrams
...................................................................
112
Terminal Description
.......................................................................................................... 13 2.1
Ball Characteristics
........................................................................................................
132.2
Signal Description
.........................................................................................................
173
Electrical Characteristics
.................................................................................................... 23 3.1
Absolute Maximum Ratings
..............................................................................................
233.2
Minimum Voltages and Associated Currents
..........................................................................
233.3
Recommended Operating Conditions
..................................................................................
243.4
Digital I/O Electrical Characteristics
.....................................................................................
244
Power Module
................................................................................................................... 27 4.1
Power Providers
...........................................................................................................
284.1.1
VDD1 dc-dc Regulator
.........................................................................................
294.1.1.1
VDD1 dc-dc Regulator Characteristics
..........................................................
294.1.1.2
External Components and Application Schematics
...........................................
304.1.2
VDD2 dc-dc Regulator
.........................................................................................
324.1.2.1
VDD2 dc-dc Regulator Characteristics
..........................................................
324.1.2.2
External Components and Application Schematics
...........................................
334.1.3
VIO dc-dc Regulator
............................................................................................
354.1.3.1
VIO dc-dc Regulator Characteristics
............................................................
354.1.3.2
External Components and Application Schematics
...........................................
364.1.4
VDAC LDO Regulator
..........................................................................................
384.1.5
VPLL1 LDO Regulator
.........................................................................................
394.1.6
VMMC1 LDO Regulator
.......................................................................................
404.1.7
VAUX2 LDO Regulator
........................................................................................
414.1.8
Output Load Conditions
........................................................................................
424.1.9
Charge Pump
...................................................................................................
434.1.10
USB LDO Short-Circuit Protection Scheme
.................................................................
444.2
Power References
.........................................................................................................
454.3
Power Control
..............................................................................................................
454.3.1
Backup Battery Charger
.......................................................................................
454.3.2
Battery Monitoring and Threshold Detection
................................................................
464.3.2.1
Power On/Power Off and Backup Conditions
..................................................
464.3.3
VRRTC LDO Regulator
........................................................................................
464.4
Power Consumption
.......................................................................................................
474.5
Power Management
.......................................................................................................
494.5.1
Boot Modes
......................................................................................................
494.5.2
Process Modes
..................................................................................................
494.5.2.1
MC021 Mode
.......................................................................................
494.5.3
Power-On Sequence
...........................................................................................
494.5.3.1
Timing Before Sequence_Start
..................................................................
494.5.3.2
Power-On Sequence
..............................................................................
514.5.3.3
Power On in Slave_C021 Mode
.................................................................
514.5.4
Power-Off Sequence
...........................................................................................
534.5.4.1
Power-Off Sequence
..............................................................................
532
Contents
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2008–2011, Texas Instruments Incorporated