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RT4832是閃光燈LED驅動器、背光WLED驅動器和DSV驅動器的整合全方位電源解決方案。閃光LED驅動器提供高達2通道 1.5A的應用。背光WLED驅動器可為10只WLED應用程序提供高達36V的輸出。並提供1024步階LED電流與對數/線性曲線。DSV由一個單電感升壓和反相電荷泵實現，與雙電感相比，它們可提供最小的EVB面積。負輸出功率 (CPOUT) 來自升壓輸出 (LCMOUT)。它還提供DSV正電壓 (POS)，通過LDO通過降低功率噪聲。它們的範圍可以分別從±4V至±6V / 每步階50mV編程。閃光燈升壓轉換器工作頻率為2MHz / 4MHz。4MHZ頻率解決方案允許使用簡單及 low-profile的組件。手電模式電流可以從25mA到375mA，每步階25mA。頻閃模式電流範圍為100mA至1.5A / 每步階100mA。<br>DSV驅動TFT-LCD面板高達10“（從SFF到MFF，例如平板電腦）。這兩個輸出導軌通常連接到Source Driver IC。寬輸入電壓範圍為2.5V至5.5V，可優化單節電池應用（鋰離子，鎳鋰，鋰聚合物），對稱輸出電流高達80mA。<br>RT4832提供完整的保護如VIN欠壓鎖定、Vin監控保護、過流保護、過壓保護、LED短路保護、VOUT短路保護和過溫保護。<br>RT4832採用WL-CSP-30B 2.24x2.64 (BSC) 封裝。
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<div class="spec-list"><ul class="lv1"><li>輸入電壓範圍：2.5V至5.5V </li><li>內部軟啟動，UVLO，OTP，OCP </li><li>典型關斷電流：< 1μA </li><li>-40至85°C溫度範圍 </li><li>2通道背光LED驅動器 <ul class="lv2"> <li></li><li>在兩串中驅動多達10只WLED </li><li>外部PWM引腳控制和I<sup>2</sup>C可編程11位元線性和指數亮度 </li><li>LED電流精準度±5% (> 500μA)，±3% (> 5mA) </li><li>I<sup>2</sup>C可編程OVP 18 / 22 / 25/ 29 / 33 / 36V </li></ul> </li><li>2通道閃光燈LED驅動器 <ul class="lv2"> <li></li><li>手電筒模式電流從25mA到375mA，2通道每步階25mA </li><li>頻閃模式電流從100mA到1.5A，2通道每步階100mA </li><li>I<sup>2</sup>C可編程閃光燈安全定時器，從32ms到1024ms，每步階32ms </li><li>高精準度安全定時器±10%，電流精準度±4% (> 375mA)，電流匹配度±7% (> 375mA) </li><li>VIN監視器保護從2.5V至3.2V / 步階0.1V </li><li>可選輸入電流限制1.9 / 2.8A </li><li>2MHz / 4MHz的閃光燈LED開關頻率 </li><li>閃光燈LED1 / 2短路保護和輸出短路保護 </li><li>獨立引腳的Txmask保護 </li></ul> </li><li>DSV <ul class="lv2"> <li></li><li>I<sup>2</sup>C可編程輸出電壓 </li><li>預設具彈性的升壓電壓、POS和CPOUT </li><li>穩壓電壓輸出：4V至6V / 步階50mV </li><li>正電壓輸出：4至6V，每步階50mV </li><li>負電壓輸出：-4至-6V / 每步階50mV </li><li>使用者選擇輸出快速放電模式或關機時浮動模式 </li><li>通過兩個外部引腳獨立的正負啟用控制 </li><li>關機狀態下與負載的連接斷開、OCP和正/負SCP功能 </li></ul> </li></ul></div>
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<div class="spec-list"><ul class="lv1"><li>智慧型手機 </li><li>Probable Instruments </li></ul></div>
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