Abstract: A SPICE sub-circuit model is developed for high-voltage LDMOS transistors integrated in PDP driver ICs.The model accounts for intrinsic LDMOS phenomena such as the quasi-saturation effects,voltage-dependent drift resistance,self-heating effects,and Miller capacitance.In contrast to most physical or sub-circuit models,the proposed model not only provides precise simulated results,but also brings a very fast modeling procedure.Furthermore,the model also can be embedded in a commercial SPICE simulator easily.The simulation results using the presented models agree well with the measured ones and the error is less than 5%.

Key words: model, LDMOS, sub-circuit, PDP driver ICs