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RT9492 是一款完整的電源管理解決方案，整合了 5A 升降壓電池充電器（Buck-Boost Battery Charger）及系統電源路徑管理（System Power Path Management）功能，適用於 2 串至 4 串鋰離子（Li-Ion）及鋰聚合物（Li-Polymer）電池應用。 其低阻抗電源路徑可最佳化切換式充電運作效率，不僅能縮短電池充電時間，也有助於在放電階段延長電池使用時間。此外，RT9492 內建 I²C 序列介面，可讓使用者彈性設定多種充電參數與系統設定，使其適用於各類不同應用需求。 建議接面溫度範圍為 -40°C 至 130°C，環境溫度範圍為 -40°C 至 85°C。
RT9492 電路圖
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<div class="spec-list"><ul class="lv1"><li>Programmable Frequencies: 750kHz/1MHz/1.5MHz - 96.7% Charge Efficiency at 2A with 9V Input and 8V Battery - Support 3.6V to 24V Input Voltage Range - Average Input Current Regulation (AICR) - Minimum Input Voltage Regulation (MIVR) </li><li>Support USB On-The-Go (OTG) - 93.4% OTG Efficiency at 2A with 8.4V Battery and 5V Output - Output Voltage with 10mV Resolution to Support USB-PD - BAT Current Limit Regulation (BCLR) </li><li>Support Dual Input Selection </li><li>Support BC1.2, Host Mode and Fast Role Swap (FRS)/Seamless Transition </li><li>Support 11-Channel, 16-bit ADC </li><li>Low Battery Quiescent Current </li><li>High Accuracy for Charger CV and ICHG </li><li>Protection - Over-Temperature Protection (OTP) - Junction Thermal Regulation (JTR) - Input Protection (VAC OVP/VBUS OVP/OCP) - Battery Overvoltage Protection (VBAT OVP) - System Voltage Protection (VSYS OVP/UVP) - System Over-Load Protection (VSYS OLP) - Cycle-by-Cycle Overcurrent Protection (OCP) - OTG Low Battery Protection (OTG LBP) - OTG Voltage Protection (OTG OVP/UVP) </li></ul></div>
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RT9492 訂購資訊
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RT9492
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<div class="spec-list"><ul class="lv1"><li>Smart Phones/Tablets/Chrome Books </li><li>Drones </li><li>Portable Devices and Accessories </li></ul></div>
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