JAJSL52A
april 2020 – february 2021
BQ25968
PRODUCTION DATA
1
1
特長
2
アプリケーション
3
概要
4
Revision History
5
概要 (続き)
6
Device Comparison Table
7
Pin Configuration and 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
Charging System
9.3.2
Battery Charging Profile
9.3.3
Control State Diagram for System Implementation
9.3.4
Device Power Up
9.3.5
Switched Cap Function
9.3.5.1
Theory of Operation
9.3.6
Charging Start-Up
9.3.7
Integrated 16-Bit ADC for Monitoring and Smart Adapter Feedback
9.3.8
Device Internal Thermal Shutdown, TSBUS, and TSBAT Temperature Monitoring
9.3.9
INT Pin, STAT, FLAG, and MASK Registers
9.3.10
CDRVH and CDRVL_ADDRMS Functions
9.3.11
Parallel Operation Using Master and Slave Modes
9.4
Device Functional Modes
9.4.1
Device Modes and Protection Status
9.4.1.1
Input Overvoltage, Overcurrent, Undercurrent and Short-Circuit Protection
9.4.1.2
Battery Overvoltage and Overcurrent Protection
9.4.1.3
Cycle-by-Cycle Current Limit
9.5
Programming
9.5.1
F/S Mode Protocol
9.6
Register Maps
9.6.1
Customer Registers
10
Application and Implementation
10.1
Application Information
10.2
Typical Application
10.2.1
Standalone Application Information (for use with switching charger)
10.2.1.1
Design Requirements
10.2.1.2
Detailed Design Procedure
10.2.1.3
Application Curves
10.2.2
Parallel BQ25968 for Higher Power Applications
10.2.2.1
Design Requirements
10.2.2.2
Detailed Design Procedure
10.2.2.3
Application Curve
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
サード・パーティ製品に関する免責事項
13.1.2
Device Nomenclature
13.2
Documentation Support
13.2.1
Related Documentation
13.3
ドキュメントの更新通知を受け取る方法
13.4
サポート・リソース
13.5
Trademarks
13.6
静電気放電に関する注意事項
13.7
用語集
14
Mechanical, Packaging, and Orderable Information
パッケージ・オプション
メカニカル・データ(パッケージ|ピン)
YFF|56
MXBG330
サーマルパッド・メカニカル・データ
発注情報
jajsl52a_oa
13.1.2
Device Nomenclature
IADAPT (A)
Output current of adapter
VADAPT (V)
Output voltage of adapter
VCONADROP (V)
Voltage drop across the adapter connector
VCONA (V)
Output voltage after adapter connector (same as the voltage at the beginning of the cable)
VCABLEDROP (V)
Voltage drop
VCABLED (V)
Voltage at the cable, going into the device
VCOND (V)
Output voltage after the device connector
VDEVCON (V)
Output voltage after the device control FETs (controlled by the PD controller)
IIN (A)
Input current to the
BQ25968
VIN (V)
Input voltage to the
BQ25968
VOUT (V)
Output voltage of the
BQ25968
VCONBDROP (V)
Voltage drop across the battery connector and sense resistor
VBAT (V)
Voltage at the battery
IBAT (A)
Current at the battery