NCV317 ON Semiconductor, NCV317 Datasheet - Page 8

• Manufacturer Part Number: NCV317
• Description: Positive Voltage Regulator
• Manufacturer: ON Semiconductor

*
*
* D
Diodes D
allow adjustment of output voltage to 0 V.
32 V to 40 V
6
protects both LM317’s during an input short circuit.
1
V
Figure 22. ‘‘Laboratory’’ Power Supply with Adjustable Current Limit and Output Voltage
and D
in
2
and transistor Q
V
in1
0.1 mF
LM317
2
(1)
are added to
Figure 21. D
80
70
60
50
40
30
Adjust 1
Power Dissipation versus P.C.B. Copper Length
0
Current
Adjust
Limit
Vertically
Mounted
V
Free Air
5.0
out1
2
PAK Thermal Resistance and Maximum
2N3822
R
SC
Q
1.0K
L, LENGTH OF COPPER (mm)
1
LM317, NCV317
1N4002
http://onsemi.com
−10 V
10
D
6
*
Minimum
Size Pad
R
8
qJA
P
15
D
1N4001
D(max)
D
1N4001
V
1
2
in2
for T
2N5640
20
A
5.0 k
Q
= +50°C
L
2
LM317
Î Î Î Î
Î Î Î Î
Î Î Î Î
Î Î Î Î
−10 V
2.0 oz. Copper
(2)
Adjust 2
25
1N4001
L
IN4001
Voltage
Adjust
D
D
240
3
4
V
out 2
30
3.5
3.0
2.5
2.0
1.5
1.0
Output Range: 0 ≤ V
Output Range:
+
IN4001
D
10 mF
5
0 ≤ I
I
+
out
1.0 mF
Tantalum
O
O
≤ 1.5 A
≤ 25 V
V
out