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| HF30ACC575018-T资料 | |
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HF30ACC575018-T PDF Download |
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File Size : 116 KB
Manufacturer: Description:to gate A) for about 4ms, to attempt to span the width of the logic-low flag that is generated during a normal (non-shorted) regulator start-up. Providing enough delay time to span the time of the flag may not always be practical, especially when starting with high-capacitance loads. If the logic-low flag is longer than the delayed enable input to gate A, the oscillator will cycle through its on/off duty cycle and the circuit will again attempt a normal start-up. This will result in a slowing of the regulator turn-on, but this is not usually objectionable be- cause it reduces turn-on surge currents. After start-up the logic-high inputs to gate A hold the oscillator off and the system remains enabled as long as no error flag is generated. If the flag is generated due to a short, the MIC5158 remains enabled only for the time of the oscillator enable pulse and is then immediately disabled for the dura- tion of the oscillator cycle. As long as the short exists the oscillator runs and the system monitors the flag to detect removal of the short; meanwhile the MOSFET is protected, and the system again starts when the short is removed. |
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| 1PCS | 100PCS | 1K | 10K | ||
| 价 格 | |||||
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型 号：HF30ACC575018-T 厂 家： 封 装：08＋ 批 号：4920 数 量： 说 明：原装现货 |
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