NSI45025AZT1G Datasheet, PDF (3/6 Pages) ON Semiconductor – Constant Current Regulator & LED Driver 45 V, 25 mA  10%, 1.4 W Package

NSI45025AZT1G
TYPICAL PERFORMANCE CURVES
Minimum FR−4 @ 300 mm², 2 oz Copper Trace, Still Air
60
50
40
30
20
10
VR
0
−10
−20
−10
0
10 20 30 40 50 60
Vak, ANODE−CATHODE VOLTAGE (V)
Figure 1. General Performance Curve for CCR
28
27
30
T_A = −40°C
[ −0.070 mA/°C
25
T_A = 25°C
typ @ Vak = 7.5 V
[ −0.058 mA/°C
20
T_A = 85°C
typ @ Vak = 7.5 V
[ −0.051 mA/°C
15
T_A = 125°C
typ @ Vak = 7.5 V
10
5
DC Test Steady State, Still Air
0
0 1 2 3 4 5 6 7 8 9 10
Vak, ANODE−CATHODE VOLTAGE (V)
Figure 2. Steady State Current (I_reg(SS)) vs.
Anode−Cathode Voltage (Vak)
28
Vak @ 7.5 V
27 ^TA ^{= 25°C}
26
T_A = 25°C
26
25
25
24
24
23
22
3.0
27
26
Non−Repetitive Pulse Test
4.0 5.0 6.0 7.0 8.0 9.0 10
Vak, ANODE−CATHODE VOLTAGE (V)
Figure 3. Pulse Current (I_reg(P)) vs.
Anode−Cathode Voltage (Vak)
Vak @ 7.5 V
T_A = 25°C
25
24
0
5
10 15
20 25 30
35
TIME (s)
Figure 5. Current Regulation vs. Time
23
22
23
24
25
26
27
28
29
I_reg(P), PULSE CURRENT (mA)
Figure 4. Steady State Current vs. Pulse
Current Testing
2200
2000
1800
500 mm²/2 oz
300 mm²/2 oz
1600
1400
100 mm²/2 oz
1200
1000 ^{500 mm2/1 oz}
800
300 mm²/1 oz
600
100 mm²/1 oz
400
−40 −20
0
20
40
60
80
T_A, AMBIENT TEMPERATURE (°C)
Figure 6. Power Dissipation vs. Ambient
Temperature @ T_J = 1505C
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3