SLUSFF9
November 2023
BQ27Z558
PRODUCTION DATA
1
1
Features
2
Applications
3
Description
4
Description (continued)
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
Supply Current
6.6
Internal 1.8-V LDO (REG18)
6.7
I/O (PULS, INT)
6.8
Chip Enable (CE)
6.9
Internal Temperature Sensor
6.10
NTC Thermistor Measurement Support
6.11
Coulomb Counter (CC)
6.12
Analog Digital Converter (ADC)
6.13
Internal Oscillator Specifications
6.14
Voltage Reference1 (REF1)
6.15
Voltage Reference2 (REF2)
6.16
Flash Memory
6.17
I2C I/O
6.18
I2C Timing — 100 kHz
6.19
I2C Timing — 400 kHz
6.20
HDQ Timing
6.21
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
BQ27Z558 Processor
7.3.2
Battery Parameter Measurements
7.3.2.1
Coulomb Counter (CC)
7.3.2.2
CC Digital Filter
7.3.2.3
ADC Multiplexer
7.3.2.4
Analog-to-Digital Converter (ADC)
7.3.2.5
Internal Temperature Sensor
7.3.2.6
External Temperature Sensor Support
7.3.3
Power Supply Control
7.3.4
Bus Communication Interface
7.3.5
Low Frequency Oscillator
7.3.6
High Frequency Oscillator
7.3.7
1.8-V Low Dropout Regulator
7.3.8
Internal Voltage References
7.3.9
Gas Gauging
7.3.10
Charge Control Features
7.3.11
Authentication
7.4
Device Functional Modes
7.4.1
Lifetime Logging Features
7.4.2
Configuration
7.4.2.1
Coulomb Counting
7.4.2.2
Cell Voltage Measurements
7.4.2.3
Auto Calibration
7.4.2.4
Temperature Measurements
8
Applications and Implementation
8.1
Application Information
8.2
Typical Applications
8.2.1
Design Requirements (Default)
8.2.2
Detailed Design Procedure
8.2.2.1
Changing Design Parameters
8.2.3
Calibration Process
8.2.4
Gauging Data Updates
8.2.4.1
Application Curve
8.3
Power Supply Recommendations
8.4
Layout
8.4.1
Layout Guidelines
8.4.2
Layout Example
9
Device and Documentation Support
9.1
Device Support
9.1.1
Third-Party Products Disclaimer
9.2
Documentation Support
9.2.1
Related Documentation
9.3
Receiving Notification of Documentation Updates
9.4
Support Resources
9.5
Trademarks
9.6
Electrostatic Discharge Caution
9.7
Glossary
10
Revision History
11
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
YPH|12
MXBG352
Thermal pad, mechanical data (Package|Pins)
Orderable Information
slusff9_oa
slusff9_pm
6.2
ESD Ratings
VALUE
UNIT
V
(ESD)
Electrostatic discharge
Human-body model (HBM) on all pins, per ANSI/ESDA/JEDEC JS-001
(1)
±1500
V
Charged-device model (CDM) on all pins, per ANSI/ESDA/JEDEC JS-002
(2)
±500
(1)
JEDEC document JEP155 states that 500-V HBM enables safe manufacturing with a standard ESD control process.
(2)
JEDEC document JEP157 states that 250-V CDM enables safe manufacturing with a standard ESD control process.