Using 1N4738A and a resistor ($R = 330 \Omega$) to design a voltage regulator, when the input voltage is 24V dc, what is the minimum and maximum load ($R_L$) that can be regulated? (note: use practical model and draw the circuit in your answer)
Absolute Maximum Ratings $T_j = 25^\circ C$ unless otherwise noted
Symbol Parameter Value Units
$P_o$ Power Dissipation 1.0 W
@ $T_L \leq 50^\circ C$, Lead Length = 3/8"
Derate above $50^\circ C$ 6.67 mW/$^\circ C$
$T_j$, $T_{stg}$ Operating and Storage Temperature Range -65 to +200 $^\circ C$
Electrical Characteristics $T_j = 25^\circ C$ unless otherwise noted
Device $V_z (V)$ @ $I_z$ (Note 1) Test Current $I_z (mA)$ Max. Zener Impedance Leakage Current Non-Repetitive Peak Reverse Current
Min. Typ. Max. $Z_z$ @ $I_z (\Omega)$ $Z_{ZK}$ @ $I_{ZK} (\Omega)$ $I_{ZK} (mA)$ $I_R (\mu A)$ $V_R (V)$ $I_{ZSM} (mA)$ (Note 2)
1N4738A 7.79 8.2 8.61 31 45 700 0.5 10 8 550
1N4739A 8.645 9.1 9.555 28 5 700 0.5 10 7 500
1N4740A 9.5 10 10.5 25 7 700 0.25 10 7.6 454
1N4741A 10.45 11 11.55 23 8 700 0.25 5 8.4 414
1N4742A 11.4 12 12.6 21 9 700 0.25 5 9.1 360
