SLVS979C
October 2009 – May 2018
TPS65720
,
TPS65721
PRODUCTION DATA.
1
Features
2
Applications
3
Description
Typical Application Schematic
4
Revision History
5
Device Options
6
Pin Configuration and Functions
Pin Functions—DSBGA (TPS65720)
Pin Functions—DSBGA (TPS657201, TPS657202)
Pin Functions—WQFN (TPS65721)
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
Dissipation Ratings
7.7
Timing Requirements
7.8
Switching Characteristics
7.9
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagrams
8.3
Feature Description
8.3.1
Battery Charger and Power Path
8.3.2
Power-Path Management
8.3.3
Battery Charging
8.3.3.1
I-PRECHARGE
8.3.3.2
ITERM
8.3.3.3
Battery Detection and Recharge
8.3.3.4
Charge Termination On/Off
8.3.3.5
Timers
8.3.3.6
Dynamic Timer Function
8.3.3.7
Charger Fault
8.3.4
Thermal Regulation and Thermal Shutdown
8.3.5
Battery Pack Temperature Monitoring
8.3.6
DCDC1 Converter
8.3.7
Power Save Mode
8.3.7.1
Dynamic Voltage Positioning
8.3.7.2
Soft Start
8.3.7.3
100% Duty Cycle Low Dropout Operation
8.3.7.4
Undervoltage Lockout
8.3.8
Short-Circuit Protection
8.3.9
Thermal Shutdown
8.3.10
LDO1
8.3.10.1
Default Voltage Setting for LDOs and DCDC1
8.3.10.2
Internal Analog Multiplexer (BAT, TS, TS_OUT); TPS657201, TPS657202 Only
8.3.10.3
Internal Battery Voltage Comparator
8.3.10.4
GPIOs, LED Drivers
8.3.10.5
RESET Output
8.3.10.6
Threshold Input (TPS65721 Only)
8.3.10.6.1
ENABLE for DCDC1 and LDO1
8.3.10.6.2
PB_IN Input
8.3.10.6.3
HOLD_DCDC1 Input
8.3.10.6.4
HOLD_LDO1 Input
8.3.10.6.5
INT Output
8.4
Device Functional Modes
8.4.1
Power Down
8.4.2
Sleep Mode
8.4.3
Standby Mode
8.4.4
Power-On Reset Mode
8.4.5
Idle Mode
8.5
Programming
8.5.1
Serial Interface
8.6
Register Maps
8.6.1
CHGSTATUS Register Address: 01h (read only)
8.6.2
CHGCONFIG0 Register Address: 02h (read/write)
8.6.3
CHGCONFIG1 Register Address: 03h (read/write)
8.6.4
CHGCONFIG2 Register Address: 04h (read/write)
8.6.5
CHGCONFIG3 Register Address: 05h (read/write)
8.6.6
CHGSTATE Register Address: 06h (read only)
8.6.7
DEFDCDC1 Register Address: 07h (read/write)
8.6.8
LDO_CTRL Register Address: 08h (read/write)
8.6.9
CONTROL0 Register Address: 09h (read/write)
8.6.10
CONTROL1 Register Address: 0Ah (read/write)
8.6.11
GPIO_SSC Register Address: 0Bh (read/write)
8.6.12
GPIODIR Register Address: 0Ch (read/write)
8.6.13
IRMASK0 Register Address: 0Dh (read/write)
8.6.14
IRMASK1 Register Address: 0Eh (read/write)
8.6.15
IRMASK2 Register Address: 0Fh (read/write)
8.6.16
IR0 Register Address: 10h (read only)
8.6.17
IR1 Register Address: 11h (read)
8.6.18
IR2 Register Address: 12h (read)
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.2.1
Output Voltage Setting
9.2.2.1.1
DCDC1
9.2.2.1.2
LDO1
9.2.2.2
Output Filter Design (Inductor and Output Capacitor)
9.2.2.2.1
Inductor Selection
9.2.2.2.2
Output Capacitor Selection
9.2.2.2.3
Input Capacitor Selection
9.2.2.3
Charger/Power Path
9.2.2.3.1
Charger Stability
9.2.2.3.2
Setting the Charge Current
9.2.2.3.3
Dynamic Power Path Management (DPPM)
9.2.3
Application Curves
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
Device and Documentation Support
12.1
Device Support
12.1.1
Third-Party Products Disclaimer
12.2
Documentation Support
12.2.1
Related Documentation
12.3
Related Links
12.4
Receiving Notification of Documentation Updates
12.5
Community Resources
12.6
Trademarks
12.7
Electrostatic Discharge Caution
12.8
Glossary
13
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
YFF|25
MXBG083Y
Thermal pad, mechanical data (Package|Pins)
Orderable Information
slvs979c_oa
slvs979c_pm
12.2
Documentation Support