SLUSBU9H
March 2014 ā June 2021
BQ2970
,
BQ2971
,
BQ2972
,
BQ2973
PRODUCTION DATA
1
Features
2
Applications
3
Description
4
Revision History
5
Device Comparison Table
6
Pin Configuration and Functions
6.1
Pin Descriptions
6.1.1
Supply Input: BAT
6.1.2
Cell Negative Connection: VSS
6.1.3
Voltage Sense Node: Vā
6.1.4
Discharge FET Gate Drive Output: DOUT
6.1.5
Charge FET Gate Drive Output: COUT
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
DC Characteristics
7.6
Programmable Fault Detection Thresholds
7.7
Programmable Fault Detection Timer Ranges
7.8
Typical Characteristics
8
Parameter Measurement Information
8.1
Timing Charts
8.2
Test Circuits
8.3
Test Circuit Diagrams
9
Detailed Description
9.1
Overview
9.2
Functional Block Diagram
9.3
Feature Description
9.4
Device Functional Modes
9.4.1
Normal Operation
9.4.2
Overcharge Status
9.4.3
Over-Discharge Status
9.4.4
Discharge Overcurrent Status (Discharge Overcurrent, Load Short-Circuit)
9.4.5
Charge Overcurrent Status
9.4.6
0-V Charging Function Enabled
9.4.7
0-V Charging Inhibit Function
9.4.8
Delay Circuit
10
Application and Implementation
10.1
Application Information
10.2
Typical Application
10.2.1
Design Requirements
10.2.2
Detailed Design Procedure
10.2.3
Application Performance Plots
11
Power Supply Recommendations
12
Layout
12.1
Layout Guidelines
12.2
Layout Example
13
Device and Documentation Support
13.1
Related Documentation
13.2
Support Resources
13.3
Trademarks
13.4
Electrostatic Discharge Caution
13.5
Glossary
14
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
DSE|6
MPDS287A
Thermal pad, mechanical data (Package|Pins)
Orderable Information
slusbu9h_oa
slusbu9h_pm
10.2
Typical Application
The 5-M resistor for an external gate-source is optional.
Figure 10-1
Typical Application Schematic, BQ2970