 English |
|
|
|
|
|
|
|
| IRF7342D2PBF_15 Datasheet, PDF (9/11 Pages) International Rectifier – Ideal For Buck Regulator Applications | |||
| |||
| ◁ |
IRF7342D2PbF
Schottky Diode Characteristics
100
D = 0.50
0.20
10
0.10
0.05
0.02
1
0.01
PDM
t1
t2
SINGLE PULSE
(THERMAL RESPONSE)
0.1
0.00001
0.0001
0.001
0.01
Notes:
1. Duty factor D =t1 / t2
2. Peak TJ= P DM x ZthJA + TA
0.1
1
10
100
t1 , Rectangular Pulse Duration (sec)
Fig 20. Maximum Effective Transient Thermal Impedance, Junction-to-Ambient
180
160
140
RthJA = 62.5 °C/W
120
100
DC
80
60
40
20
0
0
see note (4)
Square wave ( D = 0.50)
80 % Rated VR applied
1
2
3
4
5
6
Average Forward Current - FI (AV) (A)
Fig.21 - Maximum Allowable Ambient
Temp. Vs. Forward Current
Note (4) Formula used: TC = TJ - (Pd + PdREV) x RthJA ;
Pd = Forward Power Loss = IF(AV) x VFM @ (IF(AV) / D) ;
PdREV = Inverse Power Loss = VR1 x IR (1 - D); IR @ VR1= 80% rated VR
www.irf.com
9
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese