SLUSE31A
April 2020 – February 2021
BQ25968
PRODUCTION DATA
1
Features
2
Applications
3
Description
4
Revision History
5
Description (continued)
6
Device Comparison Table
7
Pin Configuration and Functions
8
Specifications
8.1
Absolute Maximum Ratings
8.2
ESD Ratings
8.3
Recommended Operating Conditions
8.4
Thermal Information
8.5
Electrical Characteristics
8.6
Typical Characteristics
9
Detailed Description
9.1
Overview
9.2
Functional Block Diagram
9.3
Feature Description
9.3.1
Charging System
9.3.2
Battery Charging Profile
9.3.3
Control State Diagram for System Implementation
9.3.4
Device Power Up
9.3.5
Switched Cap Function
9.3.5.1
Theory of Operation
9.3.6
Charging Start-Up
9.3.7
Integrated 16-Bit ADC for Monitoring and Smart Adapter Feedback
9.3.8
Device Internal Thermal Shutdown, TSBUS, and TSBAT Temperature Monitoring
9.3.9
INT Pin, STAT, FLAG, and MASK Registers
9.3.10
CDRVH and CDRVL_ADDRMS Functions
9.3.11
Parallel Operation Using Master and Slave Modes
9.4
Device Functional Modes
9.4.1
Device Modes and Protection Status
9.4.1.1
Input Overvoltage, Overcurrent, Undercurrent and Short-Circuit Protection
9.4.1.2
Battery Overvoltage and Overcurrent Protection
9.4.1.3
Cycle-by-Cycle Current Limit
9.5
Programming
9.5.1
F/S Mode Protocol
9.6
Register Maps
9.6.1
Customer Registers
10
Application and Implementation
10.1
Application Information
10.2
Typical Application
10.2.1
Standalone Application Information (for use with switching charger)
10.2.1.1
Design Requirements
10.2.1.2
Detailed Design Procedure
10.2.1.3
Application Curves
10.2.2
Parallel BQ25968 for Higher Power Applications
10.2.2.1
Design Requirements
10.2.2.2
Detailed Design Procedure
10.2.2.3
Application Curve
11
Power Supply Recommendations
12
Layout
12.1
Layout Guidelines
12.2
Layout Example
13
Device and Documentation Support
13.1
Device Support
13.1.1
Third-Party Products Disclaimer
13.1.2
Device Nomenclature
13.2
Documentation Support
13.2.1
Related Documentation
13.3
Receiving Notification of Documentation Updates
13.4
Support Resources
13.5
Trademarks
13.6
Electrostatic Discharge Caution
13.7
Glossary
14
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
YFF|56
MXBG330
Thermal pad, mechanical data (Package|Pins)
Orderable Information
sluse31a_oa
sluse31a_pm
9
Detailed Description