Switch_driver_for_18_V_to_28_V_operation

Published:2009/7/24 20:53:00 Author:Jessie | From:SeekIC

Figure 8-53 shows an LTC1155 connected for 18-V to 28-V switch-driver operation-even though the LTC1154/55/56 family is designed for 4.5-V to 18-V operation. The supply pin (Vs) is clamped to 18 V. These drivers typically produce 36-V of drive from a 18-V supply. This fully enhances N-channel MOSFET switches operating from 18 V to 28 V. The 12-V zener clamps are added to ensure that the maximum MOSFET VGS is not exceeded. LINEAR TECHNOLOGY, APPLICATION Note 53, P.4.



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