Texas Instruments Incorporated
Parallelling multiple power switches

Abstract:

In described examples, a first power switching circuit receives a power switching control signal and activates a first power switch in response to the power switching control signal. A second power switching circuit receives the power switching control, activates a second power switch in response to the power switching control signal, and determines a first power switching delay in response to temperature indications of the first and second power switches. The second power switching circuit activates the second power switch at a first delayed time after the activation of the first power switch, where the first delayed time follows the activation of the first power switch by the determined first power switching delay.