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T9470/D 是一款高度整合的 3A 切换式电池充电管理与系统电源路径管理元件，适用于单节锂离子与锂聚合物电池。低阻抗电源路径可最佳化切换式运作效率、缩短电池充电时间，并在放电阶段延长电池寿命。具充电与系统设定的 I<sup>2</sup>C 串列介面，使此元件成为真正灵活的解决方案。建议接面温度范围为 −40°C 至 150°C，环境温度范围为 −40°C 至 85°C。
RT9470/RT9470D 电路图
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<div class="spec-list"><ul class="lv1"><li><span style="text-indent: -9.8pt;">High Efficiency, 1.5MHz, Synchronous Switch-Mode Buck Charger</span><p style="margin-left: 22.3pt; text-indent: -11.25pt;" class="Feautres2"><span>- 92% Charge Efficiency at 2A from 5V Input and 3.8V Battery</span></p><p style="margin-left: 22.3pt; text-indent: -11.25pt; text-align: left;" class="Feautres2"><span>- Support 3.9V to 13.5V Input Voltage Range</span></p><p style="margin-left: 22.3pt; text-indent: -11.25pt; text-align: left;" class="Feautres2"><span>- Average Input Current Regulation (AICR)</span></p><p style="margin-left: 22.3pt; text-indent: -11.25pt; text-align: left;" class="Feautres2"><span>- Minimum Input Voltage Regulation (MIVR)</span></p><p style="margin-left: 22.3pt; text-indent: -11.25pt; text-align: left;" class="Feautres2"><span>- Minimum Input Voltage Regulation Track (MIVR Track)</span></p><p style="margin-left: 22.3pt; text-indent: -11.25pt; text-align: left;" class="Feautres2"><span>- Charge Current Regulation (CCR)</span></p><p style="margin-left: 22.3pt; text-indent: -11.25pt; text-align: left;" class="Feautres2"><span>- Charge Voltage Regulation (CVR)</span></p><p style="margin-left: 22.3pt; text-indent: -11.25pt; text-align: left;" class="Feautres2"><span>- Charge Voltage Regulation Track (CVR Track)</span></p><p style="margin-left: 22.3pt; text-indent: -11.25pt; text-align: left;" class="Feautres2"><span>- Junction Thermal Regulation (JTR)</span></p><p style="margin-left: 10.5pt; text-indent: -9.8pt;" class="FeaturesApplications"><span style="text-indent: -13.0667px;"></span></p> </li><li><span>Support USB On-The-Go (OTG)</span><p style="margin-left: 22.3pt; text-indent: -11.25pt; text-align: left;" class="Feautres2"><span>- 92% Boost Efficiency at 1A with 3.8V Battery and 5.15V Output</span></p><p style="margin-left: 22.3pt; text-indent: -11.25pt; text-align: left;" class="Feautres2"><span>- OTG Current Limit Regulation (OCLR) </span></p><p style="margin-left: 22.3pt; text-indent: -11.25pt; text-align: left;" class="Feautres2"><span style="text-indent: -11.25pt;">- OTG Voltage Limit Regulation (OVLR)</span></p><p style="margin-left: 10.5pt; text-indent: -9.8pt;" class="FeaturesApplications"><span style="text-indent: -13.0667px;"></span></p> </li><li><span>Protection </span><p style="margin-left: 22.3pt; text-indent: -11.25pt; text-align: left;" class="Feautres2"><span>- Over-Temperature Protection (OTP)</span></p><p style="margin-left: 22.3pt; text-indent: -11.25pt; text-align: left;" class="Feautres2"><span>- VBUS Overvoltage Protection (VBUS OVP)</span></p><p style="margin-left: 22.3pt; text-indent: -11.25pt; text-align: left;" class="Feautres2"><span>- Battery Overvoltage Protection (VBAT OVP)</span></p><p style="margin-left: 22.3pt; text-indent: -11.25pt; text-align: left;" class="Feautres2"><span>- System Overvoltage Protection (VSYS OVP)</span></p><p style="margin-left: 22.3pt; text-indent: -11.25pt; text-align: left;" class="Feautres2"><span>- System Undervoltage Protection (VSYS UVP)</span></p><p style="margin-left: 22.3pt; text-indent: -11.25pt; text-align: left;" class="Feautres2"><span>- System Over-Load Protection (VSYS OLP)</span></p><p style="margin-left: 22.3pt; text-indent: -11.25pt; text-align: left;" class="Feautres2"><span>- Cycle-by-Cycle Overcurrent Protection (OCP)</span></p><p style="margin-left: 22.3pt; text-indent: -11.25pt; text-align: left;" class="Feautres2"><span>- OTG Low Battery Protection (OTG LBP)</span></p> </li></ul></div>
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RT9470/RT9470D 订购信息
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<div class="spec-list"><ul class="lv1"><li>Smart Phone/Tablet PC</p> </li><li>Personal Information Appliances<p></p></p> </li><li>Portable Device and Accessory<p></p><p></p> </li></ul></div>
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