BQ28550-R1 Datasheet, PDF (2/42 Pages) Texas Instruments – Single Cell Li-Ion Battery Gas Gauge

Not Recommended for New Designs
bq28550-R1
SLUSAS4A – OCTOBER 2012 – REVISED SEPTEMBER 2014
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Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings ..................................... 4
6.2 Handling Ratings ...................................................... 4
6.3 Recommended Operating Conditions....................... 4
6.4 Thermal Information .................................................. 5
6.5 Electrical Characteristics: Battery Protection ............ 5
6.6 Electrical Characteristics: Voltage Regulator............ 6
6.7 Electrical Characteristics: Power-On Reset .............. 7
6.8 Electrical Characteristics: Internal Temperature
Sensor Characteristics............................................... 7
6.9 Electrical Characteristics: High Frequency
Oscillator .................................................................... 7
6.10 Electrical Characteristics: Low Frequency
Oscillator .................................................................... 7
6.11 Electrical Characteristics: Integrating ADC
(Coulomb Counter) Characteristics............................ 7
6.12 Electrical Characteristics: ADC (Temperature and
Cell Voltage) Characteristics...................................... 8
6.13 Electrical Characteristics: Data Flash Memory
Characteristics ........................................................... 8
6.14 Electrical Characteristics: Serial Communication
Timing Characteristics................................................ 8
7 Detailed Description ............................................ 10
7.1 Overview ................................................................. 10
7.2 Data Acquisition ...................................................... 10
7.3 Over-Temperature Indication .................................. 11
7.4 Gas Gauging ........................................................... 11
7.5 Protection ................................................................ 11
7.6 Feature Description................................................. 17
8 Application and Implementation ........................ 30
8.1 Typical Application .................................................. 30
9 Device and Documentation Support.................. 33
9.1 Related Documentation........................................... 33
9.2 Trademarks ............................................................. 33
9.3 Electrostatic Discharge Caution .............................. 33
9.4 Glossary .................................................................. 33
10 Mechanical, Packaging, and Orderable
Information ........................................................... 34
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Original (October 2012) to Revision A
Page
• Changed the document format per updated Texas Instruments data sheet standards ........................................................ 1
• Deleted Ordering Information Table ...................................................................................................................................... 1
2
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