Patent ID: 8823425

Claim:
An output driving circuit, comprising: a reference voltage generating unit for generating a reference voltage having a predetermined voltage difference with respect to a high voltage power source; a level shift unit including a latch and turning off a first transistor of a driving circuit unit by applying the high voltage power source to the first transistor according to an input signal of an input terminal or driving the first transistor by lowering a gate voltage of the first transistor according to the input signal of the input terminal; the driving circuit unit including the first transistor that is driven according to a control of the level shift unit to apply the high voltage power source to a gate of an output transistor that is driven by driving of the driving circuit unit and a second transistor that is driven complementarily to the first transistor to lower a gate voltage of the output transistor and drive the output transistor; and an withstand voltage protecting unit that is driven by receiving the reference voltage generated from the reference voltage generating unit and includes a first withstand voltage protecting unit for protecting transistors of the latch and the first transistor for stable operations thereof and a second withstand voltage protecting unit for protecting the output transistor for a stable operation thereof.