PCLT-2A

1 Characteristics

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Figure 7.

Figure 8.

Typical limiter activation voltage variation versus junction temperature

Figure 9.

Thermal resistance variation versus copper area (35 µm layer thickness;

0

1

2

3

4

5

6

7

8

9

10

0

5

10

15

20

25

30

R(k )

REF

Ω

I

(mA)

LIM

Vc = 27 V, Vi = 25 v,

Vout = 0.9 V, Vled = 1.5 V

n

1.5

2.0

2.5

3.0

-25

0

25

50

75

100

T (°C)

j

V(V)

LOW

125

Iin = 6.1 mA

Iin = 2.2 mA

150

60%

70%

80%

90%

100%

110%

120%

130%

140%

150%

0

0.5

1

1.5

2

2.5

3

3.5

4

Copper area (cm

PCB single layer

PCB double layer

R/R

th(j-a)

th(1.25 cm2)

²)