SLUSAS0F
December 2011 – July 2025
BQ2946
PRODUCTION DATA
1
1
Features
2
Applications
3
Description
4
Device Options
5
Pin Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Sense Positive Input for V1
7.3.2
Output Drive, OUT
7.3.3
Supply Input, VDD
7.3.4
Thermal Pad, PWRPAD
7.4
Device Functional Modes
7.4.1
NORMAL Mode
7.4.2
OVERVOLTAGE Mode
7.4.3
Customer Test Mode
8
Application and Implementation
8.1
Application Information
8.1.1
Application Configuration
8.1.2
29
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.3
Application Curves
8.3
System Example
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
11
Device and Documentation Support
11.1
Third-Party Products Disclaimer
11.2
Receiving Notification of Documentation Updates
11.3
Support Resources
11.4
Trademarks
11.5
Electrostatic Discharge Caution
11.6
Glossary
12
Revision History
13
Mechanical, Packaging, and Orderable Information
1
Features
Single-Cell Overvoltage Monitor for Secondary Protection
Fixed Programmable Delay Timer
Fixed Overvoltage Protection (OVP) Threshold
Available Range of 3.85V to 4.6V
Fixed OVP Delay Option: 4s or 6.5s
High-Accuracy OVP: ±10mV
Low Power Consumption I
CC
approximately 1µA
(V
CELL(ALL)
< V
PROTECT
)
Low Leakage Current per Cell Input < 100nA
Small Package Footprint
6-Pin SON