SLUSBK2I
October 2013 – March 2022
BQ76920
,
BQ76930
,
BQ76940
PRODMIX
1
Features
2
Applications
3
Description
4
Revision History
5
Device Comparison Table
6
Pin Configuration and Functions
6.1
Versions
6.2
BQ76920 Pin Diagram
6.3
BQ76930 Pin Diagram
6.4
BQ76940 Pin Diagram
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
Timing Requirements
7.7
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Subsystems
8.3.1.1
Measurement Subsystem Overview
8.3.1.1.1
Data Transfer to the Host Controller
8.3.1.1.2
14-Bit ADC
8.3.1.1.2.1
Optional Real-Time Calibration Using the Host Microcontroller
8.3.1.1.3
16-Bit CC
8.3.1.1.4
External Thermistor
8.3.1.1.5
Die Temperature Monitor
8.3.1.1.6
16-Bit Pack Voltage
8.3.1.1.7
System Scheduler
8.3.1.2
Protection Subsystem
8.3.1.2.1
Integrated Hardware Protections
8.3.1.2.2
Reduced Test Time
8.3.1.3
Control Subsystem
8.3.1.3.1
FET Driving (CHG AND DSG)
8.3.1.3.1.1
High-Side FET Driving
8.3.1.3.2
Load Detection
8.3.1.3.3
Cell Balancing
8.3.1.3.4
Alert
8.3.1.3.5
Output LDO
8.3.1.4
Communications Subsystem
8.4
Device Functional Modes
8.4.1
NORMAL Mode
8.4.2
SHIP Mode
8.5
Register Maps
8.5.1
Register Details
8.5.2
Read-Only Registers
9
Application and Implementation
9.1
Application Information
9.1.1
Device Timing
9.1.2
Random Cell Connection
9.1.3
Power Pin Diodes
9.1.4
Alert Pin
9.1.5
Sense Inputs
9.1.6
TSn Pins
9.1.7
Unused Pins
9.1.8
Configuring Alternative Cell Counts
9.2
Typical Applications
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.2.1
Step-by-Step Design Procedure
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
Third-Party Products Disclaimer
12.2
Documentation Support
12.3
Related Links
12.4
Receiving Notification of Documentation Updates
12.5
Trademarks
13
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
PW|20
MPDS362A
Thermal pad, mechanical data (Package|Pins)
PW|20
QFND419A
Orderable Information
slusbk2i_oa
slusbk2i_pm
8.3.1.3
Control Subsystem