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RT8547GQW

产品分类: LED驱动器
厂牌: RICHTEK TECHNOLOGY/台湾立锜科技
产品描述: LED Driver IC
供应商型号: RT8547GQW QFN
供应商: 国内现货
标准整包数: 1500
RICHTEK TECHNOLOGY/台湾立锜科技 LED驱动器 RT8547GQW

RT8547GQW概述

    Comprehensive Overview of the RT8547 Flash LED Driver
    1. Product Introduction
    The RT8547 is a high-performance Boost-type flash LED driver manufactured by Richtek Technology Corporation. Designed specifically for Lithium-ion/Polymer battery-powered devices, it offers up to 1.6A of regulated output current, making it an ideal solution for LED photo flash applications. Whether integrated into cellular phones, digital cameras, PDAs, smart phones, or other portable electronic devices, the RT8547 ensures efficient and reliable LED illumination.
    Key features include programmable safety timers, over-voltage protection (OVP), over-temperature protection (OTP), and a shutdown current of less than 2µA, enabling minimal standby power consumption. Its advanced one-wire dimming control simplifies system design by allowing the adjustment of the strobe mode current level through the FLSET pin.
    2. Technical Parameters
    | Parameter | Typical Value | Minimum | Maximum | Units |

    | Input Voltage Range 2.8 | 5.5 | Volts |
    | Output Current Regulation Accuracy -5 | +5 | % |
    | Output Current (Strobe Mode) 1.6 | Amps |
    | Switching Frequency | 2 2.4 | MHz |
    | Efficiency 88 | % |
    | Over-Voltage Protection Threshold 5.1 | 5.9 | Volts |
    | Thermal Shutdown Temperature 150 °C |
    The RT8547 operates efficiently within a wide temperature range (-40°C to 125°C). Key advantages include small magnetics and compact dimensions, thanks to its 2MHz switching frequency.
    3. Product Features and Advantages
    The RT8547 excels in several key areas:
    - High Efficiency: Operates at up to 88% efficiency, reducing heat generation.
    - Compact Design: Due to its 2MHz switching frequency, it supports small inductors and capacitors, ideal for space-constrained portable devices.
    - Versatile Operation: Supports both strobe and torch modes, offering flexibility for different lighting needs.
    - Safety & Reliability: Features over-voltage protection, over-current protection, and thermal shutdown, ensuring device longevity and reliability.
    - Minimal Standby Power: Consumes only <2µA in shutdown mode.
    These attributes make the RT8547 a market leader in high-efficiency, cost-effective LED drivers for flash applications.
    4. Application Case Studies and Usage Recommendations
    The RT8547 is widely used in mobile devices such as smartphones and digital cameras. For example:
    - Smartphone Flash: Utilized for capturing clear images even in low light environments.
    - Digital Camera Flash: Delivers precise control over brightness levels for professional photography.
    Usage Recommendations:
    - Always use a ceramic capacitor (≥2.2µF) at the VIN pin for stable power delivery.
    - Ensure proper grounding by connecting the exposed pad to a large PCB for optimal thermal management.
    - Program the FLSET pin correctly to achieve desired strobe and torch currents.
    To optimize performance:
    - Use an inductor value of 1µH for portable applications requiring both small size and efficiency.
    - Calibrate the low input voltage protection threshold to match specific battery discharge curves.
    5. Compatibility and Support
    The RT8547 is highly compatible with standard Lithium-ion and Polymer batteries and can be seamlessly integrated into existing systems. Richtek provides comprehensive support, including datasheets, application notes, and technical assistance to ensure smooth integration.
    6. Common Issues and Solutions
    | Issue | Solution |

    | Input voltage too

RT8547GQW参数

参数
输出数量 -
效率 -
拓扑 -
输出电流 -
调光方式 -
最小输出电压 -
最大输入电压 -
最小输入电压 -
最大输出电压 -
功率 -
安装方式 黏合安装
零件状态 在售
包装方式 卷带包装

RT8547GQW数据手册

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RICHTEK TECHNOLOGY/台湾立锜科技 LED驱动器 RICHTEK TECHNOLOGY/台湾立锜科技 RT8547GQW RT8547GQW数据手册

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价格梯度 中国香港交货 内地交货(含增值税)
1500+ ¥ 1.9838
3000+ ¥ 1.9493
6000+ ¥ 1.9148
库存: 19280
起订量: 1500 增量: 1500
交货地:
最小起订量为:1500
合计: ¥ 2975.7
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