ZHCSKL0D
December 2009 – December 2019
BQ24610
,
BQ24617
PRODUCTION DATA.
1
特性
2
应用
3
说明
Device Images
简化原理图
4
修订历史记录
5
说明 (续)
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
器件和文档支持
13.1
器件支持
13.1.1
第三方产品免责声明
13.2
相关链接
13.3
接收文档更新通知
13.4
支持资源
13.5
商标
13.6
静电放电警告
13.7
Glossary
14
机械、封装和可订购信息
封装选项
机械数据 (封装 | 引脚)
RGE|24
MPQF124G
散热焊盘机械数据 (封装 | 引脚)
RGE|24
QFND008AA
订购信息
zhcskl0d_oa
zhcskl0d_pm
10.2.1.3
Application Curves
V
IN
: 19 V
V
BAT
: 12 V
I
CHG
= 4 A
Figure 22.
Continuous Conduction Mode Switching Waveform
V
IN
: 19 V
V
BAT
: 12 V
Figure 23.
Battery Charging Soft Start