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AL8891QT16E-13

产品分类:
厂牌: DIODES
产品描述:
供应商型号: AL8891QT16E-13
供应商: 国内现货
标准整包数: 2500
DIODES  AL8891QT16E-13

AL8891QT16E-13概述

    AL8891Q Synchronous Buck LED Driver Technical Review
    1. Product Introduction
    The AL8891Q is a highly efficient synchronous buck LED driver designed by Diodes Incorporated, ideal for driving up to 2A of constant current with a wide input voltage range from 4.5V to 65V. This IC combines a compact footprint with high switching frequency capabilities (up to 2.5MHz), enabling minimal inductor size while maintaining superior performance. It is widely applicable in automotive lighting systems, including headlights, daytime running lights, fog lights, turn signals, map lights, and dimmable interior/exterior lighting.
    The AL8891Q features an easy-to-implement design with optimized PCB layout, and its advanced control mechanism simplifies system integration. Its compatibility with PWM and analog dimming makes it suitable for both dimmable and non-dimmable applications.
    2. Technical Parameters
    The key technical specifications of the AL8891Q include:
    | Parameter | Value |

    | Input Voltage Range | 4.5V to 65V |
    | Output Voltage | Up to 99% duty cycle |
    | MOSFET On-Resistance | 200mΩ (High-Side), 130mΩ (Low-Side) |
    | Output Current | 2A (Constant) |
    | Switching Frequency | 200kHz to 2.5MHz |
    | Thermal Shutdown | Yes |
    | Ambient Temperature Range | -40°C to +125°C |
    | Package Type | TSSOP-16EP with exposed pad |
    Other notable attributes include internal compensation, support for both PWM and analog dimming, cycle-by-cycle current protection, and LED open/short circuit protection. It operates within an absolute maximum temperature range of -40°C to +150°C, with an enhanced thermal design.
    3. Product Features and Advantages
    The AL8891Q offers several advantages:
    - High Efficiency: Supports up to 2.5MHz switching frequency, reducing inductor size and improving efficiency.
    - Robust Protection: Includes thermal shutdown, undervoltage lockout, and open/short circuit protection for LEDs.
    - Flexibility: Compatible with PWM and analog dimming, making it versatile for diverse applications.
    - Compact Design: Simplifies PCB layout with a thermally enhanced TSSOP-16EP package.
    - Automotive Compliance: AEC-Q100 Grade 1 qualified, ensuring reliability for automotive applications.
    These features make the AL8891Q particularly attractive for automotive lighting systems where high performance and reliability are critical.
    4. Application Cases and Usage Suggestions
    Applications:
    - Automotive Headlights: Provides high brightness and precise current control.
    - Daytime Running Lights (DRL): Maintains stable performance even under fluctuating input voltages.
    - Interior Lighting: Offers dimming flexibility for cabin lighting.
    Usage Suggestions:
    1. Ensure proper decoupling capacitors are placed on the VIN and VCC pins to minimize EMI.
    2. Use a ceramic capacitor for the bootstrap pin (CBOOT) to enhance switching performance.
    3. Consider selecting an appropriate inductor based on load requirements to maximize efficiency.
    4. Use a fault detection pin (FAULT) to monitor LED status and take preventive actions.
    5. Compatibility and Support
    The AL8891Q is compatible with various electronic systems requiring regulated DC power outputs. Diodes Incorporated provides extensive support, including PPAP capability and IATF16949 certification, ensuring compliance with automotive standards. Additionally, detailed application notes and design guidelines are available on their website.
    6. Common Issues and Solutions
    | Issue | Solution |

    | LEDs not lighting properly | Verify LED connection and ensure VOUT meets LED threshold. |
    | Overheating during operation | Check thermal management and consider heatsink

AL8891QT16E-13参数

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包装方式 卷带包装

AL8891QT16E-13厂商介绍

DIODES公司是一家全球领先的半导体公司,专注于提供广泛的标准和定制模拟、逻辑、接口和混合信号半导体产品。公司的产品广泛应用于通信、计算、消费电子、工业和汽车市场。

DIODES的主营产品分类包括:

1. 模拟产品:包括放大器、比较器、数据转换器、接口、电源管理、电压基准等。
2. 逻辑产品:包括FET开关、逻辑门、触发器、缓冲器等。
3. 接口产品:包括RS-232/422/485、I2C、SPI、USB等。
4. 混合信号产品:包括模数/数模转换器、触摸屏控制器等。

DIODES的产品应用领域广泛,包括:

1. 通信:手机、基站、网络设备等。
2. 计算:个人电脑、服务器、存储设备等。
3. 消费电子:智能穿戴、智能家居、游戏机等。
4. 工业:自动化控制、医疗设备、能源管理等。
5. 汽车:车载信息娱乐、安全系统、动力控制等。

DIODES的优势在于:

1. 产品种类丰富,满足不同应用需求。
2. 技术领先,提供高性能、高可靠性的解决方案。
3. 定制化服务,满足特定客户的个性化需求。
4. 全球化布局,提供快速响应和本地化支持。

AL8891QT16E-13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)
2500+ ¥ 9.92
5000+ ¥ 9.44
10000+ ¥ 9.28
20000+ ¥ 9.2
库存: 5000
起订量: 2500 增量: 2500
交货地:
最小起订量为:2500
合计: ¥ 24800
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