Texas Instruments BQ76922 Manuals

Manuals and User Guides for Texas Instruments BQ76922. We have 1 Texas Instruments BQ76922 manual available for free PDF download: Manual

Texas Instruments BQ76922 Manual (70 pages)

High Accuracy Battery Monitor and Protector for Li-Ion, Li-Polymer, and LiFePO4 Battery Packs

Brand: Texas Instruments | Category: Measuring Instruments | Size: 2 MB

Features
1
Applications
1
Description
1
Table of Contents
2
Device Comparison Table
3
Pin Configuration and Functions
3
Specifications
5
Absolute Maximum Ratings
5
ESD Ratings
6
Recommended Operating Conditions
6
Thermal Information BQ76922
8
Supply Current
8
Digital I/O
8
LD Pin
9
Precharge (PCHG) and Predischarge (PDSG) FET Drive
9
FUSE Pin Functionality
9
Reg18 Ldo
10
REG0 Pre-Regulator
10
Reg1 Ldo
11
Voltage References
11
Coulomb Counter
11
Coulomb Counter Digital Filter (CC1)
12
Current Measurement Digital Filter (CC2)
12
Current Wake Detector
12
Analog-To-Digital Converter
13
Cell Balancing
14
Cell Open Wire Detector
14
Internal Temperature Sensor
15
Thermistor Measurement
15
Internal Oscillators
15
High-Side NFET Drivers
16
Comparator-Based Protection Subsystem
17
Timing Requirements - I C Interface, 100Khz Mode
18
Mode
19
Timing Requirements - HDQ Interface
20
Interface Timing Diagrams
20
Typical Characteristics
22
Detailed Description
27
Overview
27
Functional Block Diagram
27
Diagnostics
28
Device Configuration
28
Measurement Subsystem
29
Primary and Secondary Protection Subsystems
35
Device Hardware Features
39
Device Functional Modes
44
Serial Communications Interface
47
Cell Balancing
49
Application and Implementation
50
Application Information
50
Typical Applications
51
Random Cell Connection Support
56
Startup Timing
57
FET Driver Turn-Off
59
Unused Pins
61
Power Supply Requirements
62
Layout
62
Layout Guidelines
62
Layout Example
63
Device and Documentation Support
68
Third-Party Products Disclaimer
68
Documentation Support
68
Trademarks
68
Electrostatic Discharge Caution
68
Glossary
68
Revision History
68
Mechanical, Packaging, Orderable Information
68

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Texas Instruments BQ76922 Manual (70 pages)

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