SLUS892D
December 2009 – December 2019
BQ24610
,
BQ24617
PRODUCTION DATA.
1
Features
2
Applications
3
Description
Device Images
Simplified Schematic
4
Revision History
5
Description (continued)
6
Device Comparison Table
7
Pin Configuration and Functions
Pin Functions
8
Specifications
8.1
Absolute Maximum Ratings
8.2
ESD Ratings
8.3
Recommended Operating Conditions
8.4
Thermal Information
8.5
Electrical Characteristics
8.6
Typical Characteristics
9
Detailed Description
9.1
Overview
9.2
Functional Block Diagram
9.3
Feature Description
9.3.1
Battery Voltage Regulation
9.3.2
Battery Current Regulation
9.3.3
Input Adapter Current Regulation
9.3.4
Precharge
9.3.5
Charge Termination, Recharge, and Safety Timer
9.3.6
Power Up
9.3.7
Enable and Disable Charging
9.3.8
System Power Selector
9.3.9
Automatic Internal Soft-Start Charger Current
9.3.10
Converter Operation
9.3.11
Synchronous and Nonsynchronous Operation
9.3.12
Cycle-by-Cycle Charge Undercurrent Protection
9.3.13
Input Overvoltage Protection (ACOV)
9.3.14
Input Undervoltage Lockout (UVLO)
9.3.15
Battery Overvoltage Protection
9.3.16
Cycle-by-Cycle Charge Overcurrent Protection
9.3.17
Thermal Shutdown Protection
9.3.18
Temperature Qualification
9.3.19
Timer Fault Recovery
9.3.20
PG Output
9.3.21
CE (Charge Enable)
9.3.22
Charge Status Outputs
9.3.23
Battery Detection
9.4
Device Functional Modes
10
Application and Implementation
10.1
Application Information
10.2
Typical Applications
10.2.1
System with Power Path
10.2.1.1
Design Requirements
10.2.1.2
Detailed Design Procedure
10.2.1.2.1
Inductor Selection
10.2.1.2.2
Input Capacitor
10.2.1.2.3
Output Capacitor
10.2.1.2.4
Power MOSFETs Selection
10.2.1.2.5
Input Filter Design
10.2.1.2.6
Inductor, Capacitor, and Sense Resistor Selection Guidelines
10.2.1.3
Application Curves
10.2.2
Simplified System without Power Path or DPM
10.2.2.1
Design Requirements
10.2.2.2
Detailed Design Procedure
10.2.2.3
Application Curves
10.2.3
Lead-Acid Charging System
10.2.3.1
Design Requirements
10.2.3.2
Detailed Design Procedure
10.2.3.3
Application Curves
11
Power Supply Recommendations
12
Layout
12.1
Layout Guidelines
12.2
Layout Example
13
Device and Documentation Support
13.1
Device Support
13.1.1
Third-Party Products Disclaimer
13.2
Related Links
13.3
Receiving Notification of Documentation Updates
13.4
Support Resources
13.5
Trademarks
13.6
Electrostatic Discharge Caution
13.7
Glossary
14
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
RGE|24
MPQF124G
Thermal pad, mechanical data (Package|Pins)
RGE|24
QFND008AA
Orderable Information
slus892d_oa
slus892d_pm
12.2
Layout Example
Figure 26.
High-Frequency Current Path
Figure 27.
Sensing Resistor PCB Layout