ZHCSD61L July 2012 – May 2019 LP8556
PRODUCTION DATA.
- 1 特性
- 2 應用
- 3 說明
- 4 修訂歷史記錄
- 5 Device Options
- 6 Pin Configuration and Functions
-
7 Specifications
- 7.1 Absolute Maximum Ratings
- 7.2 ESD Ratings
- 7.3 Recommended Operating Conditions
- 7.4 Thermal Information
- 7.5 Electrical Characteristics
- 7.6 Electrical Characteristics — Boost Converter
- 7.7 Electrical Characteristics — LED Driver
- 7.8 Electrical Characteristics — PWM Interface
- 7.9 Electrical Characteristics — Logic Interface
- 7.10 I2C Serial Bus Timing Parameters (SDA, SCL)
- 7.11 Typical Characteristics
-
8 Detailed Description
- 8.1 Overview
- 8.2 Functional Block Diagram
- 8.3
Feature Description
- 8.3.1 Boost Converter
- 8.3.2 Brightness Control
- 8.3.3 Fault Detection
- 8.4 Device Functional Modes
- 8.5 Programming
- 8.6
Register Maps
- 8.6.1 Register Bit Explanations
- 8.6.2
EPROM Bit Explanations
- 8.6.2.1 LP8556TM (DSBGA) Configurations and Pre-Configured EPROM Settings
- 8.6.2.2 LP8556TM (DSBGA) Configurations and Pre-configured EPROM Settings Continued
- 8.6.2.3 LP8556SQ (WQFN) Configurations and Pre-configured EPROM Settings
- 8.6.2.4 CFG98
- 8.6.2.5 CFG9E
- 8.6.2.6 CFG0
- 8.6.2.7 CFG1
- 8.6.2.8 CFG2
- 8.6.2.9 CFG3
- 8.6.2.10 CFG4
- 8.6.2.11 CFG5
- 8.6.2.12 CFG6
- 8.6.2.13 CFG7
- 8.6.2.14 CFG9
- 8.6.2.15 CFGA
- 8.6.2.16 CFGE
- 8.6.2.17 CFGF
- 9 Application and Implementation
- 10Power Supply Recommendations
- 11Layout
- 12器件和文檔支持
- 13機械、封裝和可訂購信息
封裝選項
機械數據 (封裝 | 引腳)
散熱焊盤機械數據 (封裝 | 引腳)
- RTW|24
訂購信息
9.2.3 Application Curves
Unless otherwise specified: VIN = 3.8 V, CVLDO = 10 μF, L1 = 4.7 μH, CIN = 2.2 μF, COUT = 4.7 μF, ƒSW = 1.25 MHz
Figure 20. Boost and LED Drive Efficiency 
Figure 22. Boost and LED Drive Efficiency 
Figure 24. Optical Efficiency 
Figure 26. Input Power as a Function of Brightness 
Figure 21. Boost and LED Drive Efficiency 
Figure 23. Boost and LED Drive Efficiency 
Figure 25. Luminance as a Function of Brightness 
Figure 27. Power Savings With Adaptive Dimming when Compared to PWM Dimming