BQ33100_15 Datasheet, PDF (2/67 Pages) Texas Instruments – Super Capacitor Manager

bq33100
SLUS987B – JANUARY 2011 – REVISED DECEMBER 2015
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Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Description (Continued) ........................................ 3
6 Pin Configuration and Functions ......................... 3
7 Specifications......................................................... 4
7.1 Absolute Maximum Ratings ...................................... 4
7.2 ESD Ratings.............................................................. 4
7.3 Recommended Operating Conditions....................... 5
7.4 Thermal Information .................................................. 5
7.5 Electrical Characteristics: General Purpose I/O........ 5
7.6 Supply Current .......................................................... 6
7.7 REG27 LDO .............................................................. 6
7.8 Coulomb Counter ...................................................... 6
7.9 ADC........................................................................... 6
7.10 External Capacitor Voltage Balance Drive.............. 7
7.11 Capacitor Voltage Monitor ...................................... 7
7.12 Internal Temperature Sensor .................................. 7
7.13 Thermistor Measurement Support .......................... 7
7.14 Internal Thermal Shutdown..................................... 7
7.15 High-Frequency Oscillator....................................... 7
7.16 Low-Frequency Oscillator ....................................... 8
7.17 RAM Backup ........................................................... 8
7.18 Flash ....................................................................... 8
7.19 Current Protection Thresholds ................................ 9
7.20 Current Protection Timing ....................................... 9
7.21 Timing Requirements: SMBus .............................. 10
7.22 Typical Characteristics .......................................... 11
8 Detailed Description ............................................ 12
8.1 Overview ................................................................. 12
8.2 Functional Block Diagram ....................................... 14
8.3 Feature Description................................................. 14
8.4 Device Functional Modes........................................ 29
8.5 Programming........................................................... 30
9 Application and Implementation ........................ 53
9.1 Application Information............................................ 53
9.2 Typical Application ................................................. 54
10 Power Supply Recommendations ..................... 56
11 Layout................................................................... 57
11.1 Layout Guidelines ................................................. 57
11.2 Layout Example .................................................... 57
12 Device and Documentation Support ................. 60
12.1 Documentation Support ....................................... 60
12.2 Community Resources.......................................... 60
12.3 Trademarks ........................................................... 60
12.4 Electrostatic Discharge Caution ............................ 60
12.5 Glossary ................................................................ 60
13 Mechanical, Packaging, and Orderable
Information ........................................................... 60
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision A (March 2011) to Revision B
Page
• Added ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation
section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and
Mechanical, Packaging, and Orderable Information section .................................................................................................. 1
• OperationStatus() register bit 9 change from RSVD to CHGOR.......................................................................................... 38
Changes from Original (January 2011) to Revision A
Page
• Changed SYSTEM PARTITIONING DIAGRAM................................................................................................................... 14
• Changed Voltage as Current During Learning graphic. ....................................................................................................... 15
• Changed equation 1 denominator from (V[D] - [C]) to (V[C] - V[D])..................................................................................... 15
• Changed Application Reference Schematic. ........................................................................................................................ 54
2
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