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NSI50350ADT4G Datasheet, PDF (2/7 Pages) ON Semiconductor – Constant Current Regulator & LED Driver | |||
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NSI50350ADT4G
MAXIMUM RATINGS (TA = 25°C unless otherwise noted)
Rating
Symbol
Value
Unit
AnodeâCathode Voltage
Vak Max
50
V
Reverse Voltage
Operating and Storage Junction Temperature Range
ESD Rating: Human Body Model
Machine Model
VR
TJ, Tstg
ESD
500
mV
â55 to +175
°C
Class 3B (8000 V)
Class C (400 V)
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted)
Characteristic
Symbol
Min
Typ
Max
Unit
Steady State Current @ Vak = 7.5 V (Note 1)
Ireg(SS)
315
350
385
mA
Voltage Overhead (Note 2)
Voverhead
1.8
V
Pulse Current @ Vak = 7.5 V (Note 3)
Ireg(P)
376.5
424
474.5
mA
1. Ireg(SS) steady state is the voltage (Vak) applied for a time duration ⥠300 sec, using 900 mm2 DENKA K1, 1.5 mm Al, 2kV Thermally
conductive dielectric, 2 oz. Cu (or equivalent), in still air.
2. Voverhead = Vin â VLEDs. Voverhead is typical value for 70% Ireg(SS).
3. Ireg(P) nonârepetitive pulse test. Pulse width t ⤠360 msec.
THERMAL CHARACTERISTICS
Characteristic
Symbol
Max
Unit
Total Device Dissipation (Note 4) TA = 25°C
Derate above 25°C
PD
4144
mW
27.62
mW/°C
Thermal Resistance, JunctionâtoâAmbient (Note 4)
Thermal Reference, JunctionâtoâTab (Note 4)
Total Device Dissipation (Note 5) TA = 25°C
Derate above 25°C
RθJA
RÏJL
PD
36.2
1.16
6383
42.6
°C/W
°C/W
mW
mW/°C
Thermal Resistance, JunctionâtoâAmbient (Note 5)
Thermal Reference, JunctionâtoâTab (Note 5)
Total Device Dissipation (Note 6) TA = 25°C
Derate above 25°C
RθJA
RÏJL
PD
23.5
1.07
8671
57.8
°C/W
°C/W
mW
mW/°C
Thermal Resistance, JunctionâtoâAmbient (Note 6)
Thermal Reference, JunctionâtoâTab (Note 6)
Total Device Dissipation (Note 7) TA = 25°C
Derate above 25°C
RθJA
RÏJL
PD
17.3
0.76
11029
73.5
°C/W
°C/W
mW
mW/°C
Thermal Resistance, JunctionâtoâAmbient (Note 7)
Thermal Reference, JunctionâtoâTab (Note 7)
Total Device Dissipation (Note 8) TA = 25°C
Derate above 25°C
RθJA
RÏJL
PD
13.6
0.72
4202
28.01
°C/W
°C/W
mW
mW/°C
Thermal Resistance, JunctionâtoâAmbient (Note 8)
RθJA
35.7
°C/W
Thermal Reference, JunctionâtoâTab (Note 8)
RÏJL
5.4
°C/W
NOTE: Lead measurements are made by nonâcontact methods such as IR with treated surface to increase emissivity to 0.9.
Lead temperature measurement by attaching a T/C may yield values as high as 30% higher °C/W values based upon empirical
measurements and method of attachment.
4. 400 mm2, see below PCB description, still air.
5. 900 mm2, see below PCB description, still air.
6. 1600 mm2, see below PCB description, still air.
7. 2500 mm2, see below PCB description, still air.
(For NOTES 4â7: PCB is DENKA K1, 1.5 mm Al, 2kV Thermally conductive dielectric, 2 oz. Cu, or equivalent).
8. 1000 mm2, FR4, 3 oz Cu, still air.
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