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buttonDatasheet
text-with-icon
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i18n(button-item.datasheet.button-label)
i18n(button-item.datasheet.button-link)
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buttonContactUs
text-with-icon
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i18n(button-item.contact-us.button-label)
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Product Spec Banner
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RT8572 是每个通道输出能力达 60mA 的8通道 LED 驱动器。它是一个电流模式 Boost 转换器，100kHZ~1MHz 可调的开关切换频率可通过 RT 引脚进行调节，输入电压范围 9V~28V。输出电压 PWM 调节回路选择拥有最高 LED 串电压的 LED 引脚并将其调整至 0.6V ，借此容许各个 LED 串之间的电压不一致性存在。RT8572 自动检测并断开 LED 未连接或断裂的 LED 通道，避免出现 V<sub>OUT</sub> 的过压状况。一致性误差在 1.5% 以内的 LED 通道电流可以通过一只电阻进行设定，具有很高对比的纯数位式 PWM 调光可以通过在 PWM 引脚施加 PWM 信号予以实现。当异常状况（开路/短路/过热）发生时，一个状态信号将被传递到系统部分让 IC 进入关机状态。RT8572 的封装是 SOP-24 。
RT8572 电路图
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id
basicInfoImageSection
anchor
productDetailSection
i18n(anchor-tab.product-detail-section.title)
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orderingInformationSection
i18n(anchor-tab.ordering-information-section.title)
orderingInformationSectionAnchorTab
technicalDocumentationSection
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designToolSection
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applicationSection
i18n(anchor-tab.application-section.title)
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productFeatureSection
productFeatureSectionTab
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buttonSeeProductDifferences
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i18n(button-item.see-product-differences.button-link)
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false
buttonFindOtherCategory
text-with-icon
right
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i18n(button-item.find-other-category.button-label)
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_self
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F5F6F8
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productDetailSection
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parameterSection
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packageSizePinsSizeSection
productFeature
<div class="spec-list"><ul class="lv1"><li>宽输入电压范围：9V~28V </li><li>可调 Boost 控制器开关切换工作频率：100kHZ~1MHz </li><li>可程式设计通道电流 </li><li>通道电流一致性误差：±1.5% </li><li>外部调光控制 </li><li>Boost 部分 MOSFET 过流保护 </li><li>自动 LED 开路/短路保护，避免输出过压 </li><li>VCC 欠压保护 </li><li>可调过压保护 </li><li>欠压保护 </li><li>热关机保护 </li><li>开路/短路/过热状态异常指示信号 </li><li>符合 RoHS 规范，不含卤素 </li></ul></div>
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productFeatureSection
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24
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i18n(tabs.ordering-information.title)
orderingInformationTabs
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i18n(tab-item.evb-section.title)
evbSection
evbSectionTab
i18n(tab-item.ordering-detail-section.title)
orderingDetailSection
orderingDetailSectionTab
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24
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24
width
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orderingInformationSection
productImageSwitcher
RT8572 订购信息
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productSection
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orderingDetailSection
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RT8572
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technicalDocumentationSection
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RT8572
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designToolSection
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rt-blue-800
i18n(text.application-title.text-content)
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<div class="spec-list"><ul class="lv1"><li>LCD TV, Monitor Display Backlight </li><li>LED Driver Application </li><li>General Purpose Constant Current Source </li></ul></div>
applicationContent
35
35
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35
keywordList
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applicationSection
rt-blue-800
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supportCards
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i18n(support-card-item.technical-support.description)
i18n(support-card-item.technical-support.learn-more-text)
i18n(support-card-item.technical-support.url)
technicalSupportCard
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i18n(support-card-item.ordering.description)
i18n(support-card-item.ordering.learn-more-text)
i18n(support-card-item.ordering.url)
orderingSupportCard
i18n(support-card-item.sales.title)
i18n(support-card-item.sales.description)
i18n(support-card-item.sales.learn-more-text)
i18n(support-card-item.sales.url)
salesSupportCard
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56
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width
fixed-width
id
supportSection