ZHCSEU8G March 2016 – August 2024 TPS56C215
PRODUCTION DATA
- 1
- 1 特性
- 2 应用
- 3 说明
- 4 Pin Configuration and Functions
- 5 Specifications
-
6 Detailed Description
- 6.1 Overview
- 6.2 Functional Block Diagram
- 6.3
Feature Description
- 6.3.1 PWM Operation and D-CAP3™ Control Mode
- 6.3.2 Eco-mode Control
- 6.3.3 4.7-V LDO
- 6.3.4 MODE Selection
- 6.3.5 Soft Start and Prebiased Soft Start
- 6.3.6 Enable and Adjustable UVLO
- 6.3.7 Power Good
- 6.3.8 Overcurrent Protection and Undervoltage Protection
- 6.3.9 UVLO Protection
- 6.3.10 Thermal Shutdown
- 6.3.11 Output Voltage Discharge
- 6.4 Device Functional Modes
- 7 Application and Implementation
- 8 Device and Documentation Support
- 9 Revision History
- 10Mechanical, Packaging, and Orderable Information
7.2.2.1.3 Inductor Selection
The inductor ripple current is filtered by the output capacitor. A higher inductor ripple current means the output capacitor must have a ripple current rating higher than the inductor ripple current. See Table 7-2 for recommended inductor values.
The RMS and peak currents through the inductor can be calculated using Equation 7 and Equation 8. It is important that the inductor is rated to handle these currents.
Equation 7.
Equation 8.
During transient/short circuit conditions the inductor current can increase up to the current limit of the device so it is safe to choose an inductor with a saturation current higher than the peak current under current limit condition.