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TPS65920BZCH Datasheet(PDF) 2 Page - Texas Instruments

No. de Pieza. TPS65920BZCH
Descripción  Integrated Power Management Audio Codec (TPS65930 Only)
Descarga  114 Pages
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Fabricante  TI [Texas Instruments]
Página de inicio  http://www.ti.com
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TPS65920BZCH Datasheet(HTML) 2 Page - Texas Instruments

 
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Contents
TPS65930/TPS65920
Integrated Power Management
\Audio Codec (TPS65930 Only)
SWCS037D – MAY 2008 – REVISED JUNE 2009
www.ti.com
1
Introduction
......................................................................................................................... 9
1.1
Features
..................................................................................................................... 10
1.1
TPS65920 and TPS65930 Device Block Diagrams
................................................................... 11
2
Terminal Description
........................................................................................................... 13
2.1
Ball Characteristics
......................................................................................................... 13
2.2
Signal Description
.......................................................................................................... 17
3
Electrical Characteristics
..................................................................................................... 23
3.1
Absolute Maximum Ratings
............................................................................................... 23
3.2
Minimum Voltages and Associated Currents
........................................................................... 23
3.3
Recommended Operating Conditions
................................................................................... 24
3.4
Digital I/O Electrical Characteristics
..................................................................................... 24
4
Power Module
.................................................................................................................... 27
4.1
Power Providers
............................................................................................................ 28
4.1.1
VDD1 dc-dc Regulator
.......................................................................................... 29
4.1.1.1
VDD1 dc-dc Regulator Characteristics
............................................................ 29
4.1.1.2
External Components and Application Schematics
.............................................. 31
4.1.2
VDD2 dc-dc Regulator
.......................................................................................... 32
4.1.2.1
VDD2 dc-dc Regulator Characteristics
............................................................ 32
4.1.2.2
External Components and Application Schematics
.............................................. 34
4.1.3
VIO dc-dc Regulator
............................................................................................ 35
4.1.3.1
VIO dc-dc Regulator Characteristics
............................................................... 35
4.1.3.2
External Components and Application Schematics
.............................................. 37
4.1.4
VDAC LDO Regulator
........................................................................................... 38
4.1.5
VPLL1 LDO Regulator
......................................................................................... 39
4.1.6
VMMC1 LDO Regulator
........................................................................................ 40
4.1.7
VAUX2 LDO Regulator
......................................................................................... 41
4.1.8
Output Load Conditions
......................................................................................... 42
4.1.9
Charge Pump
.................................................................................................... 43
4.1.10
USB LDO Short-Circuit Protection Scheme
.................................................................. 44
4.2
Power References
.......................................................................................................... 45
4.3
Power Control
............................................................................................................... 45
4.3.1
Backup Battery Charger
........................................................................................ 45
4.3.2
Battery Monitoring and Threshold Detection
................................................................. 46
4.3.2.1
Power On/Power Off and Backup Conditions
..................................................... 46
4.3.3
VRRTC LDO Regulator
......................................................................................... 46
4.4
Power Consumption
....................................................................................................... 47
4.5
Power Management
........................................................................................................ 49
4.5.1
Boot Modes
....................................................................................................... 49
4.5.2
Process Modes
.................................................................................................. 49
4.5.2.1
MC021 Mode
.......................................................................................... 49
4.5.3
Power-On Sequence
............................................................................................ 49
4.5.3.1
Timing Before Sequence_Start
..................................................................... 50
4.5.3.2
Power-On Sequence
................................................................................ 51
4.5.3.3
Power On in Slave_C021 Mode
.................................................................... 51
4.5.4
Power-Off Sequence
............................................................................................ 53
4.5.4.1
Power-Off Sequence
................................................................................ 53
5
Real-Time Clock and Embedded Power Controller
................................................................. 54
5.1
RTC
.......................................................................................................................... 54
5.1.1
Backup Battery
................................................................................................... 54
5.2
EPC
.......................................................................................................................... 54
Contents
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