ZHCSKO6B July 2010 – January 2020 BQ24650
PRODUCTION DATA.
- 1 特性
- 2 應用
- 3 說明
- 4 修訂歷史記錄
- 5 說明 （續）
- 6 Pin Configuration and Functions
- 7 Specifications
-
8 Detailed Description
- 8.1 Overview
- 8.2 Functional Block Diagram
- 8.3
Feature Description
- 8.3.1 Battery Voltage Regulation
- 8.3.2 Input Voltage Regulation
- 8.3.3 Battery Current Regulation
- 8.3.4 Battery Precharge
- 8.3.5 Charge Termination and Recharge
- 8.3.6 Power Up
- 8.3.7 Enable and Disable Charging
- 8.3.8 Automatic Internal Soft-Start Charger Current
- 8.3.9 Converter Operation
- 8.3.10 Synchronous and Non-Synchronous Operation
- 8.3.11 Cycle-by-Cycle Charge Undercurrent
- 8.3.12 Input Overvoltage Protection (ACOV)
- 8.3.13 Input Undervoltage Lockout (UVLO)
- 8.3.14 Battery Overvoltage Protection
- 8.3.15 Cycle-by-Cycle Charge Overcurrent Protection
- 8.3.16 Thermal Shutdown Protection
- 8.3.17 Temperature Qualification
- 8.3.18 Charge Enable
- 8.3.19 Inductor, Capacitor, and Sense Resistor Selection Guidelines
- 8.3.20 Charge Status Outputs
- 8.3.21 Battery Detection
- 8.4 Device Functional Modes
- 9 Application and Implementation
- 10Power Supply Recommendations
- 11Layout
- 12器件和文檔支持
- 13機械、封裝和可訂購信息
8.3.3 Battery Current Regulation
Battery current is sensed by resistor RSR connected between SRP and SRN. The full-scale differential voltage between SRP and SRN is fixed at 40 mV. Thus, for a 20-mΩ sense resistor, the charging current is 2 A. For charging current, refer to Equation 3:
Equation 3. 