LED 驱动器,低功耗,1 沟道
Obsolete
CAT3661 是一款高能效低功率分数型电荷泵,可驱动电流最高为 5 mA 的一个 LED。优化的软启动限流和短路保护适用于纽扣电池。低噪声输入波纹和恒定开关频率允许使用小型外部陶瓷电容器。这使得 CAT3661 适用于 EMI 敏感型应用。该电荷泵支持 2.0 V 至 5.5 V 的宽输入电压范围。CAT3661 具有内置电路可向微控制器提供开路/短路 LED 和低电池电量事件反馈。低电池电量指示器跳闸点内部固定在 2.4 V。如有必要,可以增加外部电阻来升高或降低跳闸电压。该器件采用极小型 16 引线 TQFN 3 mm x 3 mm 封装,最大高度 0.8 mm。包含的 1.33x 分数型电荷泵模式与传统的 1.5x 三模式电荷泵相比,可将器件能效提高达 10%,且无增加的外部电容器。
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Die Related Summary Data
Device: CAT3661HV3-GT2
Equivalent to wafer fab process: CMOS SUB
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平均故障间隔时间/平均无故障时间(按小时计算)
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CMOS SUB
2
920154574
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Data is based on the following assumptions.
Note: The temperature and confidence level may be adjusted to your requirements.
Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)