ZHCSOB0A july 2021 – august 2023 LM5157
PRODUCTION DATA
- 1
- 1 特性
- 2 應用
- 3 說明
- 4 Revision History
- 5 Device Comparison Table
- 6 Pin Configuration and Functions
- 7 Specifications
-
8 Detailed Description
- 8.1 Overview
- 8.2 Functional Block Diagram
- 8.3
Feature Description
- 8.3.1 Line Undervoltage Lockout (UVLO/SYNC/EN Pin)
- 8.3.2 High Voltage VCC Regulator (BIAS, VCC Pin)
- 8.3.3 Soft Start (SS Pin)
- 8.3.4 Switching Frequency (RT Pin)
- 8.3.5 Dual Random Spread Spectrum – DRSS (MODE Pin)
- 8.3.6 Clock Synchronization (UVLO/SYNC/EN Pin)
- 8.3.7 Current Sense and Slope Compensation
- 8.3.8 Current Limit and Minimum On Time
- 8.3.9 Feedback and Error Amplifier (FB, COMP Pin)
- 8.3.10 Power-Good Indicator (PGOOD Pin)
- 8.3.11 Hiccup Mode Overload Protection (MODE Pin)
- 8.3.12 Maximum Duty Cycle Limit and Minimum Input Supply Voltage
- 8.3.13 Internal MOSFET (SW Pin)
- 8.3.14 Overvoltage Protection (OVP)
- 8.3.15 Thermal Shutdown (TSD)
- 8.4 Device Functional Modes
- 9 Application and Implementation
- 10Power Supply Recommendations
- 11Layout
- 12Device and Documentation Support
- 13Mechanical, Packaging, and Orderable Information
封裝選項
機械數(shù)據(jù) (封裝 | 引腳)
- RTE|16
散熱焊盤機械數(shù)據(jù) (封裝 | 引腳)
- RTE|16
訂購信息
9.3 System Examples
Figure 9-3 Typical Boost
Application
Figure 9-4 Typical Start-Stop
Application
Figure 9-5 Emergency-Call/Boost
On-Demand/Portable Speaker
Figure 9-6 Typical SEPIC
Application
Figure 9-7 LiDAR Bias Supply 1 (DCM
Operation)
Figure 9-8 LiDAR Bias Supply 2 (CCM
Operation)
Figure 9-9 Low-Cost Single String LED
Driver
Figure 9-10 Secondary-Side Regulated
Isolated Flyback
Figure 9-11 Primary-Side Regulated
Multiple-Output Isolated Flyback/Isolated SEPIC
Figure 9-12 Typical Non-Isolated
Flyback