NCP5007SNT1 View Datasheet(PDF) - ON Semiconductor
Part Name
Description
MFG CO.
NCP5007SNT1 Datasheet PDF : 21 Pages
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NCP5007
TYPICAL OPERATING CHARACTERISTICS
(All curve conditions: L = 22 mH, Cin = 4.7 mF, Cout = 1.0 mF, Typical curve @ Ta = +25°C)
100
30
90 2 LED/40 mA
80
25
70
4 LED/40 mA 5 LED/40 mA
20
60
3 LED/40 mA
50
15
IOUT = 20 mA Nom
40
30
20
10
0
2.50
3.00
3.50 4.00
Vbat (V)
4.50
5.00
5.50
10
IOUT = 10 mA Nom
5
0
2.5
3.0
3.5
4.0
VBAT (V)
L = 22 mH
TA = 25°C
4.5
5.0
5.5
Figure 14. Overall Efficiency vs. Power Supply −
Iout = 40 mA, L = 22 mH
Figure 15. Current Variation vs. Power Supply with
3 Series LED’s
25
25
IOUT = 20 mA Nom
IOUT = 20 mA Nom
20
20
15
15
10
IOUT = 10 mA Nom
5
L = 22 mH
TA = 25°C
0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
VBAT (V)
Figure 16. Current Variation vs. Power Supply with
4 Series LED’s
205
204
203
202
Vbat = 3.1 V thru 5.5 V
201
200
199
198
197
196
195
−40 −20
0
20 40
60
80 100
TEMPERATURE (°C)
Figure 18. Feedback Voltage Stability
10
IOUT = 10 mA Nom
5
L = 22 mH
TA = 25°C
0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
VBAT (V)
Figure 17. Current Variation vs. Power Supply with
5 Series LED’s
5
4
3
2
1
Vbat = 3.1V thru 5.5V
0
−1
−2
−3
−4
−5
−40 −20
0
20 40 60
TEMPERATURE (°C)
80 100
Figure 19. Feedback Voltage Variation
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