ZHCSD75D
March 2014 – January 2018
PRODUCTION DATA.
1
特性
2
应用
3
说明
简化原理图
4
修订历史记录
5
Pin Configuration and Functions
Pin Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Power-On Reset
6.6
2.5-V LDO Regulator
6.7
Charger Attachment and Removal Detection
6.8
CHG and DSG FET Drive
6.9
Overvoltage Protection (OVP)
6.10
Undervoltage Protection (UVP)
6.11
Overcurrent in Discharge (OCD)
6.12
Overcurrent in Charge (OCC)
6.13
Short-Circuit in Discharge (SCD)
6.14
Low Voltage Charging
6.15
Internal Temperature Sensor Characteristics
6.16
High-Frequency Oscillator
6.17
Low-Frequency Oscillator
6.18
Integrating ADC (Coulomb Counter) Characteristics
6.19
ADC (Temperature and Cell Voltage) Characteristics
6.20
Data Flash Memory Characteristics
6.21
Timing Requirements
6.22
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Configuration
7.3.2
Fuel Gauging
7.3.3
Power Modes
7.3.3.1
NORMAL Mode
7.3.3.2
SLEEP Mode
7.3.3.3
FULLSLEEP Mode
7.3.4
Li-Ion Battery Protector Description
7.3.4.1
High-Side NFET Charge and Discharge FET Drive
7.3.4.2
Protector Configuration
7.4
Device Functional Modes
7.4.1
Operating Modes
7.4.1.1
NORMAL Mode
7.4.1.2
OVERVOLTAGE Mode
7.4.1.3
UNDERVOLTAGE Mode
7.4.1.4
OVERCURRENT IN CHARGE Mode
7.4.1.5
OVERCURRENT IN DISCHARGE and SHORT-CIRCUIT IN DISCHARGE Mode
7.4.1.6
SHUTDOWN WAIT Mode
7.4.1.6.1
ANALOG SHUTDOWN State
7.4.1.7
LOW VOLTAGE CHARGING State
7.4.2
Firmware Control of Protector
7.4.3
OVERTEMPERATURE FAULT Mode
7.4.4
Wake-Up Comparator
7.5
Battery Parameter Measurements
7.5.1
Charge and Discharge Counting
7.5.2
Voltage
7.5.3
Current
7.5.4
Auto-Calibration
7.5.5
Temperature
7.6
Communications
7.6.1
HDQ Single-Pin Serial Interface
7.6.2
I2C Interface
7.6.2.1
I2C Time Out
7.6.2.2
I2C Command Waiting Time
7.7
Standard Data Commands
7.7.1
Control(): 0x00 and 0x01
7.8
Extended Data Commands
8
Application and Implementation
8.1
Application Information
8.2
Typical Applications
8.2.1
Pack-Side, Single-Cell Li-Ion Fuel Gauge and Protector
8.2.2
Design Requirements
8.2.3
Detailed Design Procedure
8.2.3.1
BAT Voltage Sense Input
8.2.3.2
SRP and SRN Current Sense Inputs
8.2.3.3
Sense Resistor Selection
8.2.3.4
TS Temperature Sense Input
8.2.3.5
Thermistor Selection
8.2.3.6
VPWR Power Supply Input Filtering
8.2.3.7
REG25 LDO Output Filtering
8.2.3.8
Communication Interface Lines
8.2.3.9
PACKP Voltage Sense Input
8.2.3.10
CHG and DSG Charge Pump Voltage Outputs
8.2.3.11
NFET Selection
8.2.3.12
Additional ESD Protection Components
8.2.4
Application Curves
9
Power Supply Recommendation
9.1
Power Supply Decoupling
10
Layout
10.1
Layout Guidelines
10.1.1
Li-Ion Cell Connections
10.1.2
Sense Resistor Connections
10.1.3
Thermistor Connections
10.1.4
FET Connections
10.1.5
ESD Component Connections
10.1.6
High Current and Low Current Path Separation
10.2
Layout Example
11
器件和文档支持
11.1
文档支持
11.1.1
相关文档
11.2
接收文档更新通知
11.3
社区资源
11.4
商标
11.5
静电放电警告
11.6
Glossary
12
机械、封装和可订购信息
封装选项
机械数据 (封装 | 引脚)
YZF|15
MXBG070J
散热焊盘机械数据 (封装 | 引脚)
订购信息
zhcsd75d_oa
zhcsd75d_pm
1
特性
单节锂离子电池电量监测计和保护器 应用
微控制器外设提供:
具有低值感应电阻(5mΩ 至 20mΩ)的
精密 16 位高侧库仑计数器
用于报告电池温度的外部和内部温度传感器
使用寿命和电流数据记录
64 字节非易失性暂用闪存
通过 SHA-1 认证
基于已获专利的 Impedance Track™技术的电池电量计量
用于电池续航能力精确预测的电池放电模拟曲线
针对电池老化、自放电和温度以及额定引入效应的自动调节
集成高侧 NMOS 保护场效应晶体管 (FET) 驱动
基于硬件的安全与防护功能:
过压保护 (OVP)
欠压保护 (UVP)
充电过流 (OCC)
放电过流 (OCD)
放电短路 (SCD)
采用 I
2
C
和 HDQ 通信接口
格式
,用于与主机系统通信
超紧凑 15 焊球 NanoFree™DSBGA
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