Loading [MathJax]/jax/output/SVG/fonts/TeX/fontdata.js
Menu
Product
Email
PDF
Order now
BQ41Z90 Highly Integrated 3–16 Cell Battery Fuel Gauge with IT-DZT Algorithm and ECC Authentication
SLUSFQ1A
December 2024 – December 2024
BQ41Z90
ADVANCE INFORMATION
CONTENTS
SEARCH
BQ41Z90 Highly Integrated 3–16 Cell Battery Fuel Gauge with IT-DZT Algorithm and ECC Authentication
1
1
Features
2
Applications
3
Description
4
Pin Configuration and Functions:
5
Pin Equivalent Diagrams
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Supply Current
6.6
Power Selector
6.7
Current Wake Detector
6.8
General Purpose Input-Outputs
6.9
Aux REGOUT LDO
6.10
LD Pin
6.11
Shelf Timer
6.12
Cell Balancing
6.13
Comparator-Based Detections (SCOMP)
6.14
SCOMP Timing Requirements
6.15
SCD Comparator
6.16
High-side NFET Drivers (CHG and DSG and PCHG and PDSG)
6.17
FUSE Pin
6.18
Flash Memory
6.19
Interface I/O
6.20
I2C Interface Timing
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Device Functional Modes
7.3.1.1
Analog Front End (AFE)
7.3.1.2
Power Management
7.3.1.2.1
Power Mode Block Configuration
7.3.1.2.2
Power Supply Control
7.3.1.2.2.1
HIBERNATE Mode
7.3.1.2.2.2
SHUTDOWN Mode
7.3.1.2.2.3
SHELF Mode
7.3.1.2.2.4
Wake Functionality
7.3.1.2.3
Power Management Unit
7.3.1.2.3.1
PMU Overview
7.3.1.2.4
Thermal Shutdown
7.3.1.2.5
Low Drop Out Regulators (LDOs)
7.3.1.2.5.1
REG18
7.3.1.2.5.2
REG135
7.3.1.2.5.3
REGIO
7.3.1.2.5.4
REGOUT
7.3.1.3
Reset Management
7.3.1.3.1
RST_SD Pin Operation
7.3.1.3.2
AFE Watchdog
7.3.1.4
Diagnostics Features
7.3.1.5
Internal Oscillators
7.3.1.5.1
Low Frequency Oscillator (LFO)
7.3.1.5.2
High Frequency Oscillator (HFO)
7.3.1.5.3
Low Power Oscillator (LPO)
7.3.2
Temperature Measurement
7.3.2.1
External Temperature Measurement Support
7.3.2.2
Internal Temperature Sensor
7.3.3
Random Cell Connection Support
7.3.3.1
Usage of VC Pins for Cells Versus Interconnect
7.3.3.2
Unused Pins
7.3.4
Cell Balancing Support
7.3.4.1
Open Wire Detection
7.3.5
Protection and Charge Control Outputs
7.3.5.1
High-Side NFET Drivers
7.3.5.2
PRECHARGE and PREDISCHARGE Modes
7.3.5.3
FET Configuration
7.3.5.4
CFETOFF, DFETOFF Pin Functionality
7.3.5.5
DDSG and DCHG Pin Operation
7.3.5.6
Hardware Fault Detection (SCOMP and SCD)
7.3.5.7
FET UVLO Protection
7.3.5.8
Fuse Drive
7.3.6
Load Detect Functionality
7.3.7
MCU Peripherals
7.3.7.1
General Purpose and Special Function I/O
7.3.7.1.1
Low Voltage RAx I/O
7.3.7.1.2
Low Voltage RCx I/O
7.3.7.1.3
Constant Current Sink I/O
7.3.7.2
Communication Interfaces
7.3.7.2.1
I2C Interface
7.3.7.2.2
SMBus Interface
7.3.7.3
Authentication Support
7.3.7.3.1
ECC Authentication
7.3.7.3.2
SHA-1 Support
7.3.7.3.3
SHA-2 Support
8
Application and Implementation
8.1
Application Information
8.2
Typical Applications
8.2.1
Design Requirements
9
Power Supply Recommendations
10
Device and Documentation Support
10.1
Third-Party Products Disclaimer
10.2
Documentation Support
10.2.1
Related Documentation
10.3
Receiving Notification of Documentation Updates
10.4
Support Resources
10.5
Trademarks
10.6
Electrostatic Discharge Caution
10.7
Glossary
11
Revision History
12
Mechanical, Packaging, and Orderable Information
IMPORTANT NOTICE
search
No matches found.
Full reading width
Full reading width
Comfortable reading width
Expanded reading width
Card for each section
Card with all content
Data Sheet
BQ41Z90 Highly Integrated 3–16 Cell Battery Fuel Gauge with IT-DZT Algorithm and ECC Authentication
