LMBR0540T1G Leshan Radio Company, LMBR0540T1G Datasheet - Page 4

• Manufacturer Part Number: LMBR0540T1G
• Description: Pb-free Package Is Available Surface Mount Schottky Power Rectifier
• Manufacturer: Leshan Radio Company

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