LS0502SCD33 系列 - 用于备用电源应用的超级电容器保护集成电路

系列: LS0502SCD33
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The LS0502SCD33 is a complete solution for system with backup storage capacitor or capacitor bank. It integrated input overvoltage, overcurrent protection circuit, a reverse blocking switch and super capacitor charging control circuit. It also has built-in cell balance to provide protection over two cell super capacitor system. When the main supply is present and above the minimum system supply voltage, system will draw power from input supply. At the same time, integrated linear charger charges the storage element at up to 300 mA current. Once the storage element is charged, the circuit draws only 2.5 μA of current while it maintains the super capacitor or other storage element in its ready state. When the main supply is removed, the integrated reverse blocking switch will block current flow from system rail to input. The linear charger will be turned on to provide power to system rail with low resistance path with up to 2 A current. Integrated cell balancing circuit will keep monitoring the cell voltage when charging and keep the two cells voltage at same level. The LS0502SCD33 is externally programmable for input current limit, input overvoltage, charge current limit, and charge voltage limit. It provides a flag signal when input supply is unplugged so that main system can taking action. LS0502SCD33 is available in DFN3X3-10 package.

特征和优势:

  • 3.3 V to 5.5 V System Voltage
  • 18 V Input Rating withOvervoltage Protection
  • Programmable 1.1 V to 5.3 VCap Voltage Range
  • Programmable SuperCapacitor Charge Current
  • Programmable InputOvercurrent Protection
  • Automatic Cell Balancing
  • Automatic Main/BackupSwitchover
  • Up to 2 A Discharge Current
  • Programmable Voltage and Current Thresholds
  • ±2 % Threshold Accuracy
  • 2.5 μA Ready QuiescentCurrent
  • Small Solution Size
  • DFN Package

应用:

  • Handheld IndustrialEquipment
  • Dash Camera
  • IoT
  • SmartMeter
  • Portable Device withRemovable Battery

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Catalog #Operation Voltage (V)Vmax (V)Continuous Current (A)Ron (mΩ)Over Current Protection (A)Over Voltage Protection (V)Over Temperature ProtectionReverse BlockingSoft StartOutput DischargeQuiescent Current (µA)PackagePartner ECAD ModelsStockSamples
产品号工作电压（V）Vmax（V）持续电流（A）Ron（mΩ）过流保护（A）过压保护（V）过热保护反向阻断软启动输出放电静态电流（µA）封装合作伙伴ECAD模型库存样品
LS0502SCD33 3.3~5.51821002.76是是无是2.5DFN3x3_10LLS0502SCD33 Check订购
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