TDA9309 查看數據表（PDF） - STMicroelectronics
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TDA9309 Datasheet PDF : 6 Pages
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TDA9309
APPLICATION CIRCUITS (continued)
DC COUPLING
+ VS
CF
2
6
3
R3
VREF
Vertical
Position
Adjustment
VREF
FLYBACK
GENERATOR
7
POWER
AMPLIFIER
5
1
THERMAL
TDA9309
4
PROTECTION
VEE
R2
R1
Figure 1 : Output Transistors SOA
(for secondary breakdown)
IC (A)
10
@ Tcase = 25 C
1
10 -1
10 -2
1
t = 1ms
t = 10ms
t = 100ms
VCE (V)
10
Figure 2 : Secondary Breakdown Temperature
Derating Curve
(ISB = secondary breakdown current)
ISB (%)
100
90
80
70
Tcase (°C)
60
10 2
25
50
75
100
125
4/6
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