ZHCSJL9B
April 2019 – April 2019
TPS566235
PRODUCTION DATA.
1
特性
2
应用
3
说明
Device Images
典型应用
效率与输出电流 Eco-mode
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
Electrical Characteristics
6.6
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
PWM Operation and D-CAP3 Control
7.3.2
Power Good
7.3.3
Soft Start and Pre-Biased Soft Start
7.3.4
Over current Protection and Undervoltage Protection
7.3.5
Over Voltage Protection
7.3.6
UVLO Protection
7.3.7
Thermal Shutdown
7.4
Device Functional Modes
7.4.1
Light Load Operation
7.4.2
MODE Pin Configuration
7.4.3
Advanced Eco-Mode Control
7.4.4
Out-Of-Audio Mode
7.4.5
Force CCM Mode
7.4.6
Standby Operation
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.2.1
Custom Design With WEBENCH® Tools
8.2.2.2
Inductor Selection
8.2.2.3
Output Capacitor Selection
8.2.2.4
Input Capacitor Selection
8.2.3
Application Curves
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
11
器件和文档支持
11.1
器件支持
11.1.1
第三方产品免责声明
11.1.2
开发支持
11.1.2.1
使用 WEBENCH® 工具创建定制设计
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
术语表
12
机械、封装和可订购信息
6.6
Typical Characteristics
T
J
=-40
o
C to 125
o
C, V
IN
=12V(unless otherwise noted)
V
EN
= 5 V
Figure 1.
Supply Current vs Junction Temperature
1.
Figure 3.
Feedback Voltage vs Junction Temperature
1.
Figure 5.
Enable Off Voltage vs Junction Temperature
1.
Figure 7.
Low-Side R
DS(on)
vs Junction Temperature
1.
Figure 9.
UVP Threshold vs Junction Temperature
1.
Figure 11.
Soft-Start Time vs Junction Temperature
V
EN
= 0 V
Figure 2.
Shutdown Current vs Temperature
1.
Figure 4.
Enable On Voltage vs Junction Temperature
1.
Figure 6.
High-Side R
DS
(on) vs Junction Temperature
1.
Figure 8.
OVP Threshold vs Junction Temperature
1.
Figure 10.
Valley Current Limit vs Junction Temperature
1.
Figure 12.
Efficiency, Eco-mode
1.
Figure 14.
Efficiency, FCCM
1.
Figure 16.
Switching Frequency vs Output Load, OOA-mode
1.
Figure 13.
Efficiency, OOA-mode
1.
Figure 15.
Switching Frequency vs Output Load, Eco-mode
1.
Figure 17.
Switching Frequency vs Output Load, FCCM