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关于压电风扇驱动方案咨询(升压)

Other Parts Discussed in Thread: LM5158, TPS61391

Hi ,

  我有个案子,需要产生一个很高的电压(80~90V)用来驱动压电风扇(功率不大,小于0.5W),供电源是单节锂离子电池(3~4.4V,下截止电压可以上浮)。

  我看到TI这边有TPS61391和LM5158都可以升压到这么高的电压。我不太确定,请问这两颗料是否都合适我的需求?两者在应用上有什么差异?