LED5000 - 具有调光功能的3 A单片式降压电流源 - 意法半导体STMicroelectronics

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产品概述

描述

The LED5000 device is an 850 kHz fixed switching frequency monolithic step-down DC-DC converter designed to operate as a precise constant current source with an adjustable current capability up to 3 A DC. The embedded PWM dimming circuitry features LED brightness control. The regulated output current level is set by connecting a sensing resistor to the feedback pin. The 200 mV typical R_SENSE voltage drop enhances performance in terms of efficiency. The size of the overall application is minimized thanks to the high switching frequency and its compatibility with ceramic output capacitors. The device is fully protected against overheating, overcurrent and output short-circuit. The LED5000 is available in an HSOP8 package.

所有功能
5.5 V to 48 V operating input voltage range

850 kHz fixed switching frequency

200 mV typ. current sense voltage drop

Buck / buck-boost / floating boost topologies

PWM dimming

± 3% output current accuracy overtemperature
200 mΩ typical R_DSON

Peak current mode architecture

Short-circuit protection

Compliant with ceramic output capacitors

Inhibit for zero current consumption

Thermal shutdown
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eDesignSuite

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太阳能电池充电器

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Power Management Design Center

Digital Power Workbench

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• Generates the STM32Cube embedded software package for custom applications and allows firmware project generation, compatible with multiple STM32 IDEs

Power Management Design Center

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Twister Sim

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Signal Conditioning Design Tool

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质量与可靠性

产品型号	Marketing Status	包	等级规格	符合RoHS级别	材料声明**
LED5000PHR	批量生产	PowerSO-8	工业	Ecopack2	PDF XML

LED5000PHR

Package:

PowerSO-8

Material Declaration**:

(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此，它们可能不是100%适用于特定的设备。有关特定设备的信息，请联系销售支持。

样片和购买

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经销商的可用性 LED5000PHR

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LED5000PHR 批量生产

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(*) 建议转售单价（美元）仅用于预算用途。如需以当地货币计价的报价，请联系您当地的 ST销售办事处或我们的经销商。

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