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STM8458 Datasheet, PDF (6/11 Pages) SamHop Microelectronics Corp. – Dual Enhancement Mode Field Effect Transistor ( N and P Channel )
STM8458
15V
VDS
L
DR IVE R
RG
20V
tp
D .U .T
IA S
0 .0 1
+
- VDD
A
Unclamped Inductive Test Circuit
F igure 13a.
Ver 1.0
V( BR )D S S
tp
IAS
Unclamped Inductive Waveforms
F igure 13b.
10
1
0.5
0.2
0.1
0.1
0.05
0.02
0.01
0.01
0.00001
0.0001
Single Pulse
0.001
0.01
0.1
1
Square Wave Pulse Duration(sec)
Normalized Thermal Transient Impedance Curve
P DM
t1
t2
1. R įJA (t)=r (t) * R įJA
2. R įJA=S ee Datas heet
3. T J M-T A = P DM* R įJ A (t)
4. Duty C ycle, D=t1/t2
10
100
1000
Jun,12,2008
6
www.samhop.com.tw