7.
已知椭圆\(C\):\( \dfrac {x^{2}}{a^{2}}+ \dfrac {y^{2}}{b^{2}}=1(a > b > 0)\)的离心率为\( \dfrac {1}{2}\),设\(A(0,b)\),\(B(a,0)\),\(F_{1}\),\(F_{2}\),分别是椭圆的左右焦点,且\(S\;_{\triangle ABF_{2}}= \dfrac { \sqrt {3}}{2}\)
\((1)\)求椭圆\(C\)的方程;
\((2)\)过\(F_{1}\)的直线与以\(F_{2}\)为焦点,顶点在坐标原点的抛物线交于\(P\),\(Q\)两点,设\( \overrightarrow{F_{1}P}=λ \overrightarrow{F_{1}Q}\),若\(λ∈[2,3]\),求\(\triangle F_{2}PQ\)面积的取值范围.