STEVAL-A6983NV1

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基于DC-DC转换器降压稳压器A6983NQTR的评估板

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STEVAL-A6983NV1是一款易于使用的同步单片降压稳压器，能够向负载提供高达3 A的直流电。

宽输入电压范围使该器件适用于广泛的应用领域。

STEVAL-A6983NV1基于峰值电流模式架构，采用QFN16 (3 x 3 mm) 封装且支持内部补偿功能，从而能够将设计的复杂性和产品尺寸降至最低。

该器件专为车辆驻车期间需持续工作的应用设计，可在轻载条件下实现可控输出电压纹波的同时显著提升系统效率。

STEVAL-A6983NV1支持在200 kHz - 2.3 MHz范围内选择开关频率，同时能够以可选展频来改善EMC。

EN引脚提供使能/禁止功能。禁止时典型关断电流为2 µA。

当EN引脚上拉时，器件启用并会执行时长为1.3 ms的内部软启动。

STEVAL-A6983NV1采用“电源正常”的开路集电极，以监测FB电压。

两个功率元件上的逐脉冲电流检测实现了有效的恒定电流保护和热关断，防止热耗散。

  • 所有功能

    • 通过AEC-Q100 1级认证
    • 工作温度范围：-40 °C至+150 °C (Tj)
    • 工作输入电压范围：3.5 V至38 V
    • 输出电压范围：0.85 V至VIN
    • 固定输出电压版本：3.3 V和5 V
    • 3 A DC输出电流
    • 内部补偿网络
    • 噪声敏感型应用
    • 2 μA关断电流
    • 内部软启动
    • 高压VIN兼容使能
    • 输出过压保护
    • 输出电压排序
    • 热保护功能
    • 可编程开关频率范围：200 kHz至2.2 MHz
    • 通过低ESR电容器保持稳定（最低22 µF）
    • 以可选展频功能改善EMC
    • “电源正常”
    • 支持与外部时钟同步
    • 采用QFN16 (3 x 3 mm) 封装

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The current status of a product:
Active: Product is in volume production
Evaluation: Product is under characterization. Limited Engineering samples available
Preview: Product is in design stage
Target: Product is in design feasibility stage.No commitment taken to produce
Proposal: Marketing proposal for customer feedback.No commitment taken to design or produce
NRND: Not Recommended for New Design.Product is in volume production only to support customers ongoing production.Marketing description of the package type.Compliancy of the device with industry requirement domains (IRD)The RoHS status of a product:
ECOPACK 1: Initial grade to identify European RoHS compliant products.
ECOPACK 2: New grade to identify brominated chlorinated and antimony oxide flame retardant free products.
ECOPACK 3: Halogen free RoHS exemptions free products.
(*): ECOPACK 2 version available upon request.
(**): Some versions still existing in ECOPACK 1 or not compliant.Compliancy with WEEE Directive (2012/19/EU)The current status of a product:
Active: Product is in volume production
Evaluation: Product is under characterization. Limited Engineering samples available
Preview: Product is in design stage
Target: Product is in design feasibility stage.No commitment taken to produce
Proposal: Marketing proposal for customer feedback.No commitment taken to design or produce
NRND: Not Recommended for New Design.Product is in volume production only to support customers ongoing production.Budgetary PriceMain country of assembly or fabrication of the product.ECCNs are five character alpha-numeric designations used on the Commerce Control List to identify dual-use items for export control purposes. ECCNs are five character alpha-numeric designations used on the Commerce Control List to identify dual-use items for export control purposes.