Texas Instruments bq24072 Manuals

User's Guide SLVU274C–November 2008–Revised May 2010 bq24072/3/4/5/9(T) and bq24230/2 1.5-A Single-Chip Li-Ion and Li-Polymer Charge Management IC EVM This user’s guide describes the bq24072/3/4/5/9(T) and bq24230/2 ( bqTINY-III™) evaluation module (EVM). The EVM provides a convenient method for evaluating the performance of a charge management and system power solution for portable applications using the bq24072/3/4/5/9(T) and bq24230/2 product families. A completely designed and tested module is presented. The charger is designed to deliver up to 1.5 A of continuous current to the system or charger for one-cell Li-ion or Li-polymer applications (see the data sheet for correct device) using a dc power supply. The charger is programmed from the factory to deliver 0.9 A of charging current. This EVM was designed as a stand-alone evaluation module, but it also can be interfaced with the system and host via the connectors and headers. Contents 1 Introduction .................................................................................................................. 2 2 Considerations When Testing and Using bq24072/3/4/5/9(T) and bq24230/2 ICs ................................ 2 3 Performance Specification Summary ..................................................................................... 3 4 Test Summary ............................................................................................................... 3 5 Schematic .................................................................................................................... 7 6 Physical Layouts ............................................................................................................ 8 7 Bill of Materials ............................................................................................................. 11 8 References ................................................................................................................. 14 List of Figures 1 Test Diagram ................................................................................................................ 4 2 Modes of Operation Tested in Steps 11 Through 13 .................................................................. 6 3 Charger Profile With EN1 = VSS and EN2 = HI, Programmed by ISET............................................. 6 4 Charge Enabled, Pulled High, Then Low – Disables Charge......................................................... 7 5 Top Assembly View......................................................................................................... 8 6 Board Layout – Top Etch Layer........................................................................................... 9 7 Board Layout – Bottom Etch Layer ..................................................................................... 10 List of Tables 1 Ordering Information........................................................................................................ 2 2 Performance Specification Summary for bq24072/3/4/5/9(T) and bq24230/2 EVMs.............................. 3 3 bq240xx ...................................................................................................................... 4 4 HPA282B Bill of Materials ............................................................................................... 11 5 HPA282B Bill of Materials (Continued)................................................................................. 12 6 HPS252B Bill of Materials................................................................................................ 13 7 HPA502A Bill of Materials................................................................................................ 14 1 SLVU274C–November 2008–Revised May 2010 bq24072/3/4/5/9(T) and bq24230/2 1.5-A Single-Chip Li-Ion —and Li-Polymer Charge Management IC EVM Copyright © 2008–2010, Texas Instruments Incorporated

1 SLVU274E–November 2008–Revised January 2017 Submit Documentation Feedback Copyright © 2008–2017, Texas Instruments Incorporated bq24072/3/4/5/9(T) and bq24230/2 1.5-A Single-Chip Li-Ion and Li-Polymer Charge Management IC EVM User's Guide SLVU274E–November 2008–Revised January 2017 bq24072/3/4/5/9(T) and bq24230/2 1.5-A Single-Chip Li-Ion and Li-Polymer Charge Management IC EVM This user’s guide describes the bq24072/3/4/5/9(T) and bq24230/2 (bqTINY-III™) evaluation module (EVM). The EVM provides a convenient method for evaluating the performance of a charge management and system power solution for portable applications using the bq24072/3/4/5/9(T) and bq24230/2 product families. A completely designed and tested module is presented. The charger is designed to deliver up to 1.5 A of continuous current to the system or charger for one-cell Li-ion or Li-polymer applications (see the data sheet for correct device) using a dc power supply. The charger is programmed from the factory to deliver 0.9 A of charging current. This EVM was designed as a stand-alone evaluation module, but it also can be interfaced with the system and host via the connectors and headers. Contents 1 Introduction ................................................................................................................... 2 2 Considerations When Testing and Using bq24072/3/4/5/9(T) and bq24230/2 ICs ................................. 2 3 Performance Specification Summary ..................................................................................... 3 4 Test Summary................................................................................................................ 4 5 Schematic..................................................................................................................... 8 6 Physical Layouts............................................................................................................. 9 7 Bill of Materials ............................................................................................................. 12 8 References.................................................................................................................. 15 List of Figures 1 Test Diagram................................................................................................................. 5 2 Modes of Operation Tested in Steps 11 Through 13 ................................................................... 6 3 Charger Profile With EN1 = VSS and EN2 = HI, Programmed by ISET ............................................. 7 4 Charge Enabled, Pulled High, Then Low – Disables Charge.......................................................... 7 5 Schematic..................................................................................................................... 8 6 Top Assembly View ......................................................................................................... 9 7 Board Layout – Top Etch Layer.......................................................................................... 10 8 Board Layout – Bottom Etch Layer ...................................................................................... 11 List of Tables 1 Ordering Information ........................................................................................................ 2 2 Performance Specification Summary for bq24072/3/4/5/9(T) and bq24230/2 EVMs............................... 3 3 bq240xx....................................................................................................................... 4 4 HPA282B Bill of Materials ................................................................................................ 12 5 HPA282B Bill of Materials (Continued).................................................................................. 13 6 HPS252B Bill of Materials................................................................................................. 14 7 HPA502A Bill of Materials................................................................................................. 15 Trademarks bqTINY-III is a trademark of Texas Instruments.