NSI45020AT1G_14 Datasheet, PDF (4/8 Pages) ON Semiconductor – Constant Current Regulator & LED Driver

NSI45020AT1G
TYPICAL PERFORMANCE CURVES
Minimum FR−4 @ 300 mm², 1 oz Copper Trace, Still Air
25
23.0
T_A = −40°C
[ −0.052 mA/°C
20
T_A = 25°C
typ @ Vak = 7.5 V
22.5
[ −0.044 mA/°C
T_A = 85°C
typ @ Vak = 7.5 V
22.0
15
21.5
10
21.0
T_A = 25°C
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)
22
Vak @ 7.5 V
T_A = 25°C
21
20.5
20.0
3.0
23
22
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
20
21
19
20
18
19
20
21
22
23
24
25
26
I_reg(P), PULSE CURRENT (mA)
Figure 4. Steady State Current vs. Pulse
Current Testing
19
0
5
10 15
20 25 30
35
TIME (s)
Figure 5. Current Regulation vs. Time
800
700
500 mm²/2 oz
600
500 mm²/1 oz
500
300 mm²/2 oz
400 ^{300 mm2/1 oz}
300
200 ^{100 mm2/1 oz}
100 mm²/2 oz
100
−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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4