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Product Spec Banner
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RT9427R 鋰離子 / 鋰聚合物電池電量計是一款微控制器周邊裝置，可為單節電池組提供電量計量。RT9427R 位於系統主機板上，並管理不可拆卸電池或可拆卸電池組。<br /><br />RT9427R 依據具電流感測的電壓式電量計 (VGCS) 演算法回報 StateOfCharge、StateOfHealth、FullChargeCapacity、TimeToEmpty 與 CycleCount，透過使用電池電壓與 OCV 之間的電壓差來計算增加或減少的 SOC，並搭配電流感測補償以回報電池 SOC。<br /><br />具電流感測的電壓式電量計演算法可支援平順的 SOC，且不會隨時間與電流累積誤差。相較於庫倫計數器會因電流感測誤差與電池自放電而產生 SOC 漂移，這是一項優勢。<br /><br />RT9427R 提供完整的電池狀態監測，並具備中斷警報功能。當電池在充電 / 放電期間發生過壓 / 欠壓、過溫，以及充電 / 放電過電流狀況時，它可主動提醒主處理器。對於高 C-rate 電池充電應用尤其適用，因為它可透過 Kelvin 感測連接來測量電池電壓，以消除 IR 壓降效應，實現最佳充電曲線與安全性。其他實用的警報功能包括低 SOC 警示、SOC 變化與電池存在狀態變化。<br /><br />建議接面溫度範圍為 −40°C 至 125°C，環境溫度範圍為 −40°C 至 85°C。
RT9427R 電路圖
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<div class="spec-list"><ul class="lv1"><li>Support System Side Fuel Gauging </li><li>Battery Fuel Gauge for 1-Series (1sXp) Li-Ion/Li-Polymer Applications </li><li>State of Charge (SOC) Calculated by VoltaicGauge<sup>TM</sup> with Current Sensing (VGCS) </li><li>No Accumulation Error on Capacity Calculation </li><li>Battery SOC, SOH, FCC, TTE and Cycle Count Report </li><li>Ultra Low Power Consumption 5μA </li><li>Voltage Measurement: ±5mV </li><li>Current Measurement: ±1% </li><li>Battery Temperature Measurement: ±1°C </li><li>Battery monitor with alert indicator for Voltage, Current, Temperature, SOC and Presence </li><li>High C-Rate Battery Charging Compliance </li><li>Voltage Kelvin-Sense Connection </li><li>Build-In 8mΩ Sense Resistor </li><li>9 Bump WL-CSP Package with 0.5mm Pitch </li><li>I<sup>2</sup>C Controlled Interface with 1.2V and 1.8V IO Compatible </li></ul></div>
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RT9427R 訂購資訊
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<div class="spec-list"><ul class="lv1"><li>Wearable Device </li><li>Handheld and Portable Applications </li><li>Digital Still Cameras </li><li>Digital Video Cameras </li></ul></div>
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