ZHCSK78A
september 2019 – august 2023
BQ21061
PRODUCTION DATA
1
1
特性
2
应用
3
说明
4
Revision History
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
Electrical Characteristics
6.6
Timing Requirements
6.7
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Linear Charger and Power Path
7.3.1.1
Battery Charging Process
7.3.1.2
JEITA and Battery Temperature Dependent Charging
7.3.1.3
Input Voltage Based Dynamic Power Management (VINDPM) and Dynamic Power Path Management (DPPM)
7.3.1.4
Battery Supplement Mode
7.3.2
Protection Mechanisms
7.3.2.1
Input Over-Voltage Protection
7.3.2.2
Safety Timer and I2C Watchdog Timer
7.3.2.3
Thermal Protection and Thermal Charge Current Foldback
7.3.2.4
Battery Short and Over Current Protection
7.3.2.5
PMID Short Circuit
7.3.3
VDD LDO
7.3.4
Load Switch/LDO Output and Control
7.3.5
PMID Power Control
7.3.6
System Voltage (PMID) Regulation
7.3.7
MR Wake and Reset Input
7.3.7.1
MR Wake or Short Button Press Functions
7.3.7.2
MR Reset or Long Button Press Functions
7.3.8
14-Second Watchdog for HW Reset
7.3.9
Faults Conditions and Interrupts ( INT)
7.3.9.1
Flags and Fault Condition Response
7.3.10
Power Good ( PG) Pin
7.3.11
External NTC Monitoring (TS)
7.3.11.1
TS Thresholds
7.3.12
I2C Interface
7.3.12.1
F/S Mode Protocol
7.4
Device Functional Modes
7.4.1
Ship Mode
7.4.2
Low Power
7.4.3
Active Battery
7.4.4
Charger/Adapter Mode
7.4.5
Power-Up/Down Sequencing
7.5
Register Map
7.5.1
I2C Registers
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.2.1
Input (IN/PMID) Capacitors
8.2.2.2
VDD, LDO Input and Output Capacitors
8.2.2.3
TS
8.2.2.4
Recommended Passive Components
8.2.3
Application Curves
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
11
Device and Documentation Support
11.1
Device Support
11.1.1
第三方产品免责声明
11.2
Documentation Support
11.2.1
Related Documentation
11.3
接收文档更新通知
11.4
支持资源
11.5
静电放电警告
11.6
Trademarks
11.7
术语表
12
Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
YFP|20
MXBG090K
散热焊盘机械数据 (封装 | 引脚)
订购信息
zhcsk78a_oa
zhcsk78a_pm
1
特性
具有 1.25mA 至 500mA 快速充电电流范围的线性电池充电器
0.5% 精度 I
2
C 可编程电池稳压电压,范围为 3.6V 至 4.6V 且阶跃为 10mV
可配置的终止电流,支持低至 0.5mA
可耐受 20V 的输入,具有 3.4V 至 5.5V 的典型输入电压工作范围
可编程热负荷曲线,完全可配置的热、温、凉、冷阈值
电源路径管理,用于系统供电和电池充电
I
2
C 可编程稳定系统电压 (PMID) 范围为 4.4V 至 4.9V,此外还具有电池电压跟踪功能和输入直通选项
动态电源路径管理可以对通过弱适配器充电进行优化
利用高级 I
2
C 控制,主机可以根据需要断开电池或适配器
I
2
C 可配置负载开关或高达 150mA LDO 输出
可编程范围为 0.6V 至 3.7V,阶跃为 100mV
超低 Iddq,可延长电池寿命
10nA 运输模式电池 Iq
在为系统供电时具有 400nA 的 Iq(PMID 和 VDD 打开)
通过可调节计时器实现单按钮唤醒和重置输入
支持系统循环通电和硬件重置
安全相关认证
TUV IEC 62368 认证
20 引脚 2mm x 1.6mm CSP 封装
总解决方案尺寸为 11mm
2