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34844 Fiches technique(PDF) 23 Page - Freescale Semiconductor, Inc

No de pièce 34844
Description  10 Channel LED Backlight Driver with Integrated Power Supply
PDF  37 Pages
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Fabricant  FREESCALE [Freescale Semiconductor, Inc]
Site Internet  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

34844 Fiches technique(HTML) 23 Page - Freescale Semiconductor, Inc

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Analog Integrated Circuit Device Data
Freescale Semiconductor
23
34844
TYPICAL PERFORMANCE CURVES (TA=25°C)
LOGIC COMMANDS AND REGISTERS
TYPICAL PERFORMANCE CURVES (TA=25°C)
Figure 8. Boost efficiency vs Input Voltage
Figure 9. Line Regulation, VIN Changing
85%
86%
87%
88%
89%
90%
91%
92%
93%
94%
95%
10
12
14
16
18
20
22
24
26
28
30
Vin, volts
Fs = 600KHz
L=22uH, DCR=52mO
Schottky V12P10-E3/86A
COUT = 2x4.7µF, 2x2.2µF/100V
FPWM=600Hz, 100% duty
Load = 16 LEDs, 50mA/channel
VLED = 48V, ±1V /channel
50.00
50.05
50.10
50.15
50.20
50.25
50.30
50.35
50.40
50.45
50.50
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Vin, volts
Fs = 600KHz
L=22uH, DCR=52mO
Schottky V12P10-E3/86A
COUT = 2x4.7µF, 2x2.2µF/100V
FPWM=600Hz, 100% duty
Load = 16 LEDs, 50mA/channel
VLED = 48V, ±1V /channel



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