PT4115B89E-B Ver la hoja de datos (PDF) - Unspecified
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PT4115B89E-B Datasheet PDF : 18 Pages
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PT4115
30V, 1.2A Step-down High Brightness
LED Driver with 5000:1 Dimming
100%
90%
80%
Duty Cycle L=47uH Rcs=0.13ohm
3LEDs
2LEDs
5LEDs 6LEDs
4LEDs
7LEDs
70%
60%
50%
40%
30%
1LED
20%
10%
0%
8 10 12 14 16 18 20 22 24 26 28 30
Supply Voltage Vin(V)
Switch Frequency L=47uH Rcs=0.13ohm
900
800
700
600
500
400
1LED
300
4LEDs
200 2LEDs
5LEDs 6LEDs
3LEDs
100
7LEDs
0
8 10 12 14 16 18 20 22 24 26 28 30
Supply Voltage Vin(V)
Output Current L=100uH Rcs=0.33ohm
8%
6%
4%
2%
0%
-2%
1LED
-4%
-6%
5
2LEDs
3LEDs
10
4LEDs
15
6LEDs 7LEDs
5LEDs
20
25
30
Supply Voltage
Duty Cycle L=100uH R=0.33ohm
90%
80%
3LEDs
7LEDs
5LEDs 6LEDs
70%
2LEDs
4LEDs
60%
50% 1LED
40%
30%
20%
10%
0%
5
10
15
20
25
30
Supply Voltage Vin(V)
Switch Frequency L=100uH R=0.33ohm
1000
900
800
700
600
500
400
2LEDs
4LEDs 5LEDs 6LEDs 7LEDs
300
200 1LED
3LEDs
100
0
5
10
15
20
25
30
Supply Voltage Vin(V)
China Resources Powtech (Shanghai) Limited
PT4115_DS Rev EN_2.9
WWW.CRPOWTECH.COM
Page 9
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