NSI50350ADT4G Datasheet, PDF (3/7 Pages) ON Semiconductor – Constant Current Regulator & LED Driver

NSI50350ADT4G
TYPICAL PERFORMANCE CURVES
(Minimum DENKA K1 @ 900 mm², 1.5 mm Al, 2kV Thermally conductive dielectric, 2 oz. Cu, or equivalent)
400
350
300
250
200
150
100
50
0
−50
−10
0
T_A = 25°C
10
20
30
40
50
60
Vak, ANODE−CATHODE VOLTAGE (V)
Figure 1. General Performance Curve for CCR
500
T_A = 25°C
450
400
350
300
250
200
Non−Repetitive Pulse Test
150
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Vak, ANODE−CATHODE VOLTAGE (V)
Figure 3. Pulse Current (I_reg(P)) vs.
Anode−Cathode Voltage (Vak)
450
T_A = −40°C
400
350
T_A = 25°C
≈−0.894 mA/°C typ
300
T_A = 85°C
≈−0.860 mA/°C typ
250
≈−0.508 mA/°C typ
200
T_A = 125°C
150
T_J, maximum die temperature limit 175°C
100
50
DC Test Steady State, Still Air
0
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Vak, ANODE−CATHODE VOLTAGE (V)
Figure 2. Steady State Current (I_reg(SS)) vs.
Anode−Cathode Voltage (Vak)
390
380 ^{Vak @ 7.5 V}
T_A = 25°C
370
360
350
340
330
320
310
375 385 395 405 415 425 435 445 455 465 475
I_reg(P), PULSE CURRENT (mA)
Figure 4. Steady State Current vs. Pulse
Current Testing
430
420
410
400
390
380
370
360
350
340
0
Vak @ 7.5 V
T_A = 25°C
50 100 150 200 250 300 350
TIME (s)
Figure 5. Current Regulation vs. Time
16000
14000
2500 mm², Denka K1, 2 oz
12000
10000
1600 mm², Denka K1, 2 oz
8000
6000
4000
900 mm², Denka K1, 2 oz
2000
1000 mm², FR4, 3 oz 400 mm², Denka K1, 2 oz
0
−40 −20 0
20 40 60 80 100 120
T_A, AMBIENT TEMPERATURE (°C)
Figure 6. Power Dissipation vs. Ambient
Temperature @ T_J = 1755C
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