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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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L6732C 데이터시트(PDF) 19 Page - STMicroelectronics |
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L6732C 데이터시트(HTML) 19 Page - STMicroelectronics |
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19 / 32 page  Obsolete Product(s) - Obsolete Product(s) Obsolete Product(s) - Obsolete Product(s) Obsolete Product(s) - Obsolete Product(s) L6732C 5 Device description 19/32 5.12 Minimum on-time (TON, MIN) The device can manage minimum on-times lower than 100ns. This feature comes down from the control topology and from the particular over-current-protection system of the L6732C. In fact, in a voltage mode controller the current has not to be sensed to perform the regulation and, in the case of L6732C, neither for the over-current protection, given that during the off-time the valley-current-protection can operate in every case. The first advantage related to this feature is the possibility to realize extremely low conversion ratios. Figure 12. shows a conversion from 14V to 0.3V at 500KHz with a TON of about 50ns. The on-time is limited by the turn-on and turn-off times of the MOSFETs. Figure 12. 14V -> 0.3V@500KHz, 5A 50ns VPHASE IL VOUT Obsolete Product(s) - Obsolete Product(s) |
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