LMBR0540T1G_15 Datasheet, PDF (4/5 Pages) Leshan Radio Company – Schottky Power Rectifier

LESHAN RADIO COMPANY, LTD.
LMBR0540T1G
0.8
dc
0.7
0.6
SQUARE WAVE
0.5
I_pk/I_o = p
0.4
I_pk/I_o = 5
0.3
I_pk/I_o = 10
0.2
I_pk/I_o = 20
0.1
FREQ = 20 kHz
0.45
0.40
SQUARE WAVE
dc
0.35
I_pk/I_o = p
0.30
0.25
I_pk/I_o = 5
0.20
I_pk/I_o = 10
0.15
I_pk/I_o = 20
0.10
0.05
0
0
20
40
60
80 100 120 140
0
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
T_L, LEAD TEMPERATURE (°C)
I_O, AVERAGE FORWARD CURRENT (AMPS)
Figure 5. Current Derating
Figure 6. Forward Power Dissipation
100
T_J = 25°C
10
0 5.0 10 15 20 25 30 35 40
V_R, REVERSE VOLTAGE (VOLTS)
Figure 7. Capacitance
126
124
R_tja = 118°C/W
122
120
118
149°C/W
116
180°C/W
114
206°C/W
112
228°C/W
110
0 5.0 10 15 20 25 30 35 40
V_R, DC REVERSE VOLTAGE (VOLTS)
Figure 8. Typical Operating Temperature Derating*
* Reverse power dissipation and the possibility of thermal runaway must be considered when operating this device under any
reverse voltage conditions. Calculations of T_J therefore must include forward and reverse power effects. The allowable operating
T_J may be calculated from the equation:
T_J = T_Jmax − r(t)(Pf + Pr) where
r(t) = thermal impedance under given conditions,
Pf = forward power dissipation, and
Pr = reverse power dissipation
This graph displays the derated allowable T_J due to reverse bias under DC conditions only and is calculated as
T_J = T_Jmax − r(t)Pr, where r(t) = Rthja. For other power applications further calculations must be performed.
Rev.O 4/5