NSI45090JDT4G_14 Datasheet, PDF (4/8 Pages) ON Semiconductor – Adjustable Constant Current Regulator & LED Driver

NSI45090JDT4G
TYPICAL PERFORMANCE CURVES
Minimum FR−4 @ 300 mm², 2 oz Copper Trace, Still Air
110
100
90
80
70
60
50
40
30
20
10
0
0
T_A = −40°C
T_A = 25°C
T_A = 85°C
T_A = 125°C
[ −0.223 mA/°C
typ @ Vak = 7.5 V
[ −0.144 mA/°C
typ @ Vak = 7.5 V
[ −0.155 mA/°C
typ @ Vak = 7.5 V
DC Test Steady State, Still Air, R_adj = Open
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)
110
105
T_A = 25°C
100
R_adj = Open
95
90
85
3.0
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)
105
Vak @ 7.5 V
100 ^TA ^{= 25°C}
R_adj = Open
95
90
85
80
75
85
90 95 100 105 110 115 120
I_reg(P), PULSE CURRENT (mA)
Figure 4. Steady State Current vs. Pulse
Current Testing
104
103
102
101
100
99
98
97
96
95
94
93
92
91
90
89
0
Vak @ 7.5 V
T_A = 25°C
R_adj = Open
10 20 30 40 50 60 70 80 90
TIME (s)
Figure 5. Current Regulation vs. Time
160
150
140
130
120
110
100
90
80
1
Vak @ 7.5 V
T_A = 25°C
10
100
R_adj (W), Max Power 125 mW
Figure 6. I_reg(SS) vs. R_adj
1000
4800
4500
700 mm²/2 oz
4200
3900
3600
500 mm²/2 oz
3300
3000
300 mm²/2 oz
2700
2400
2100
1800
700 mm²/1 oz
1500
1200
500 mm²/1 oz
900
600
300 mm²/1 oz
300
−40 −20 0 20 40 60 80 100 120 140
T_A, AMBIENT TEMPERATURE (°C)
Figure 7. Power Dissipation vs. Ambient
Temperature @ T_J = 1755C
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