ZHCSPX4A
February 2022 – April 2022
LM5152-Q1
,
LM51521-Q1
PRODUCTION DATA
1
特性
2
应用
3
说明
4
Revision History
5
说明(续)
6
Device Comparison Table
7
Pin Configuration and Functions
8
Specifications
8.1
Absolute Maximum Ratings
8.2
ESD Ratings
8.3
Recommended Operating Conditions
8.4
Thermal Information
8.5
Electrical Characteristics
8.6
Typical Characteristics
9
Detailed Description
9.1
Overview
9.2
Functional Block Diagram
9.3
Feature Description
9.3.1
Device Enable/Disable (EN, VH Pin)
9.3.2
High Voltage VCC Regulator (BIAS, VCC Pin)
9.3.3
Light Load Switching Mode Selection (MODE Pin)
9.3.4
Line Undervoltage Lockout (UVLO Pin)
9.3.5
Fast Restart Using VCC HOLD (VH Pin)
9.3.6
Adjustable Output Regulation Target (VOUT, TRK, VREF Pin)
9.3.7
Overvoltage Protection (VOUT Pin)
9.3.8
Boost Status Indicator (STATUS Pin)
9.3.9
Dynamically Programmable Switching Frequency (RT)
9.3.10
External Clock Synchronization (SYNC Pin)
9.3.11
Programmable Spread Spectrum (DITHER Pin)
9.3.12
Programmable Soft Start (SS Pin)
9.3.13
Wide Bandwidth Transconductance Error Amplifier and PWM (TRK, COMP Pin)
9.3.14
Current Sensing and Slope Compensation (CSP, CSN Pin)
9.3.15
Constant Peak Current Limit (CSP, CSN Pin)
9.3.16
Maximum Duty Cycle and Minimum Controllable On-Time Limits
9.3.17
Deep Sleep Mode and Bypass Operation (HO, CP Pin)
9.3.18
MOSFET Drivers, Integrated Boot Diode, and Hiccup Mode Fault Protection (LO, HO, HB Pin)
9.3.19
Thermal Shutdown Protection
9.4
Device Functional Modes
9.4.1
Device Status
9.4.1.1
Shutdown Mode
9.4.1.2
Configuration Mode
9.4.1.3
Active Mode
9.4.1.4
Sleep Mode
9.4.1.5
Deep Sleep Mode
9.4.2
Light Load Switching Mode
9.4.2.1
Forced PWM (FPWM) Mode
9.4.2.2
Diode Emulation (DE) Mode
9.4.2.3
Forced Diode Emulation Operation in FPWM Mode
9.4.2.4
Skip Mode
10
Application and Implementation
10.1
Application Information
10.2
Typical Application
10.2.1
Design Requirements
10.2.2
Detailed Design Procedure
10.2.2.1
Application Ideas
10.2.3
Application Curves
10.3
System Example
11
Power Supply Recommendations
12
Layout
12.1
Layout Guidelines
12.2
Layout Example
13
Device and Documentation Support
13.1
Device Support
13.1.1
第三方米6体育平台手机版_好二三四免责声明
13.2
接收文档更新通知
13.3
支持资源
13.4
Trademarks
13.5
Electrostatic Discharge Caution
13.6
术语表
14
Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
RGR|20
MPQF239A
散热焊盘机械数据 (封装 | 引脚)
RGR|20
QFND664
订购信息
zhcspx4a_oa
zhcspx4a_pm
9.2
Functional Block Diagram
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