STB120NH03L Datasheet, PDF (10/11 Pages) STMicroelectronics – N-CHANNEL 30V - 0.005 W - 60A D2PAK STripFET III POWER MOSFET FOR DC-DC CONVERSION

STB120NH03L
P conduction
P switching
High Side Switch (SW1)
R
DS(on)SW1
*
I
2
L
*d
Low Side Switch (SW2)
R _DS(on)SW2
*
I
2
L
*
(1
−
d)
V_in
* (Q_gsth(SW1)
+
Q _gd(SW1) ) * f
*
I_L
I_g
Zero Voltage Switching
P_diode ^Recovery
Conduction
Pgate(Q_G )
P Qoss
Not Applicable
Not Applicable
Q_g(SW1) * V_gg * f
V_in * Q_oss(SW1) * f
2
1 _{Vin * Qrr(SW2) * f}
V_f(SW2) * I _L * t _deadtime * f
Q _gls(SW2) * V_gg * f
V_in * Q_oss(SW2) * f
2
Parameter
d
Qgsth
Qgls
Pconduction
Pswitching
Pdiode
Pgate
P Qoss
Meaning
Duty-cycle
Post threshold gate charge
Third quadrant gate charge
On state losses
On-off transition losses
Conduction and reverse recovery diode losses
Gate drive losses
Output capacitance losses
1 _{Dissipated by SW1 during turn-on}
10/11