ZHCSQI6B May   2022  – January 2023

PRODUCTION DATA

1. 特性
2. 应用
3. 说明
4. Revision History
5. 说明（续）
6. Device Options
7. Pin Configuration and Functions
8. Specifications
9. Detailed Description
1. 9.1 Overview
2. 9.2 Functional Block Diagram
3. 9.3 Feature Description
4. 9.4 Device Functional Modes
5. 9.5 Programming
6. 9.6 Register Map
10. 10Application and Implementation
1. 10.1 Application Information
2. 10.2 Typical Application
1. 10.2.1 Design Requirements
2. 10.2.2 Detailed Design Procedure
3. 10.2.3 Application Curves
3. 10.3 Best Design Practices
4. 10.4 Power Supply Recommendations
5. 10.5 Layout
11. 11Device and Documentation Support
1. 11.1 Device Support
2. 11.2 Documentation Support
3. 11.3 接收文档更新通知
4. 11.4 支持资源
6. 11.6 静电放电警告
7. 11.7 术语表
12. 12Mechanical, Packaging, and Orderable Information

• RXS|16

#### 10.2.2.5 Selecting the Compensation Capacitor, CC

First, use Equation 17 to calculate the bandwidth of the inner loop:

Equation 17. ${\mathrm{B}\mathrm{W}}_{\mathrm{I}\mathrm{N}\mathrm{N}\mathrm{E}\mathrm{R}}=\frac{\mathrm{\tau }}{2\mathrm{\pi }×\frac{\mathrm{L}}{Nɸ}×{\mathrm{C}}_{\mathrm{O}\mathrm{U}\mathrm{T}\left(\mathrm{m}\mathrm{a}\mathrm{x}\right)}}$
Equation 18.

Next, calculate the product of gmRZ:

Equation 19. ${\mathrm{g}}_{\mathrm{m}}×{\mathrm{R}}_{\mathrm{Z}}=1.5×{10}^{–3}×2.4×{10}^{3}=3.6$

If gmRZ > than 1, use Equation 20 to calculate the recommended value of CC. If gmRZ < 1, use Equation 22 to calculate the recommended value of CC.

Equation 20. ${\mathrm{C}}_{\mathrm{C}}=\frac{2}{\mathrm{\pi }×{\mathrm{B}\mathrm{W}}_{\mathrm{I}\mathrm{N}\mathrm{N}\mathrm{E}\mathrm{R}}×{\mathrm{g}}_{\mathrm{m}}×{{\mathrm{R}}_{\mathrm{Z}}}^{2}}$
Equation 21.

The closest standard value from the E12 series is 0.82 nF.

Equation 22. ${\mathrm{C}}_{\mathrm{C}}=\frac{2×{\mathrm{g}}_{\mathrm{m}}}{\mathrm{\pi }×{\mathrm{B}\mathrm{W}}_{\mathrm{I}\mathrm{N}\mathrm{N}\mathrm{E}\mathrm{R}}}$