ZHCSKO3B January 2020 – September 2020 BQ25611D
PRODUCTION DATA
- 1 特性
- 2 應用
- 3 說明
- 4 Revision History
- 5 說明（續）
- 6 Device Comparison Table
- 7 Pin Configuration and Functions
- 8 Specifications
-
9 Detailed Description
- 9.1 Overview
- 9.2 Functional Block Diagram
- 9.3
Feature Description
- 9.3.1 Power-On-Reset (POR)
- 9.3.2 Device Power Up from Battery without Input Source
- 9.3.3 Power Up from Input Source
- 9.3.4 Boost Mode Operation From Battery
- 9.3.5 Power Path Management
- 9.3.6 Battery Charging Management
- 9.3.7 Ship Mode and QON Pin
- 9.3.8 Status Outputs ( STAT, INT )
- 9.3.9 Protections
- 9.3.10 Serial Interface
- 9.4 Device Functional Modes
- 9.5 Register Maps
- 10Application and Implementation
- 11Power Supply Recommendations
- 12Layout
- 13Device and Documentation Support
- 14Mechanical, Packaging, and Orderable Information
10.2.2.3 Output Capacitor
Ensure that the output capacitance has enough ripple current rating to absorb the output switching ripple current. Equation 6 shows the output capacitor RMS current ICOUT calculation.
Equation 6. 
The output capacitor voltage ripple can be calculated as follows:
Equation 7. 
At certain input and output voltage and switching frequency, the voltage ripple can be reduced by increasing the output filter LC.
The charger device has internal loop compensation optimized for > 10-μF ceramic output capacitance. The preferred ceramic capacitor is 10-V rating, X7R or X5R.