LMBR120LSFT1G Datasheet, PDF (4/5 Pages) Leshan Radio Company – Surface Mount Schottky Power Rectifier Guardring for Stress Protection

LESHAN RADIO COMPANY, LTD.
LMBR120LSFT1G
1000
100
T_J = 25°C
10
0 2.0 4.0 6.0 8.0 10 12 14 16 18 20
V_R, REVERSE VOLTAGE (VOLTS)
Figure 7. Capacitance
125
120
115
110
105
100
95
90
85
80
75
70
65
0
R_qJA = 25.6°C/W
130°C/W
235°C/W
324.9°C/W
400°C/W
2.0 4.0 6.0 8.0 10 12 14 16 18 20
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 re-
verse 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.
1000
D = 0.5
100
0.2
0.1
0.05
10
0.01
1
SINGLE PULSE
0.1
0.000001 0.00001
0.0001
P_(pk)
t₁
t₂
DUTY CYCLE, D = t₁/t₂
Test Type > Min Pad < Die Size 38x38 @ 75% mils
qJA = 321.8 °C/W
0.001
0.01
0.1
1
t₁, TIME (sec)
Figure 9. Thermal Response
10
100
1000
Rev.O 4/5