NSI45090JDT4G ON Semiconductor, NSI45090JDT4G Datasheet - Page 4

• Manufacturer Part Number: NSI45090JDT4G
• Description: 90MA ADJUSTABLE CURRENT REG DPAK
• Manufacturer: ON Semiconductor

Specifications of NSI45090JDT4G

• Constant Current: *
• Constant Voltage: *
• Topology: *
• Number Of Outputs: *
• Internal Driver: *
• Type - Primary: *
• Type - Secondary: *
• Frequency: *
• Voltage - Supply: *
• Voltage - Output: *
• Mounting Type: Surface Mount
• Package / Case: 6-UFDFN Exposed Pad
• Operating Temperature: *
• Low Level Output Current: 90 mA
• Operating Supply Voltage: 45 V
• Maximum Operating Temperature: + 150 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 55 C
• Lead Free Status / RoHS Status: Lead free / RoHS non-compliant

APPLICATIONS
+
−
Number of LED’s that can be connected is determined by:
D1 is a reverse battery protection diode
LED’s = ((V
Example: V
LED V
(12 Vdc − 4.2 Vdc)/2.2 Vdc = 3 LEDs in series.
V
in
D1
Cathode
F
Anode
Figure 8. Typical Application Circuit
= 2.2 Vdc @ 30 mA
in
in
− Q
(30 mA each LED String)
= 12 Vdc, Q
X
V
HF3−R5570
HF3−R5570
HF3−R5570
Q1
LED
LED
LED
F
− D1 V
R
adj
X
V
F
F
)/LED V
= 3.5 Vdc, D1VF = 0.7 V
4200
3900
3600
3300
3000
2700
2400
2100
1800
1500
1200
HF3−R5570
HF3−R5570
HF3−R5570
Q2
LED
LED
LED
900
600
300
−40
R
adj
F
700 mm
)
Figure 7. Power Dissipation vs. Ambient
−20
700 mm
2
/1 oz
500 mm
T
HF3−R5570
HF3−R5570
HF3−R5570
Qx
A
LED
LED
LED
Temperature @ T
0
, AMBIENT TEMPERATURE (°C)
R
http://onsemi.com
2
adj
/2 oz
2
/1 oz
20
500 mm
300 mm
40
4
2
/2 oz
300 mm
2
/1 oz
60
J
= 1505C
Number of LED’s that can be connected is determined by:
D1 is a reverse battery protection diode
Example: V
LED V
(12 Vdc − (3.5 + 0.7 Vdc))/2.6 Vdc = 3 LEDs in series.
Number of Drivers = LED current/30 mA
90 mA/30 mA = 3 Drivers (Q1, Q2, Q3)
+
−
2
80
V
/2 oz
F
in
Figure 9. Typical Application Circuit
= 2.6 Vdc @ 90 mA
D1
Cathode
100
Anode
in
(90 mA each LED String)
= 12 Vdc, Q
120
HF3−R5570
HF3−R5570
HF3−R5570
LED
LED
LED
Q1
X
V
R
F
adj
= 3.5 Vdc, D1VF = 0.7 V
Q2
R
adj
Qx
R
adj