34844 datasheet(23/37 Pages) FREESCALE

Teilenummer	34844

Bauteilbeschribung	10 Channel LED Backlight Driver with Integrated Power Supply

PDF	37 Pages

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Hersteller	FREESCALE [Freescale Semiconductor, Inc]

Direct Link	http://www.freescale.com

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Analog Integrated Circuit Device Data

Freescale Semiconductor

34844

TYPICAL PERFORMANCE CURVES (TA=25°C)

LOGIC COMMANDS AND REGISTERS

TYPICAL PERFORMANCE CURVES (TA=25°C)

Figure 5. Boost efficiency vs Input Voltage

Figure 6. Line Regulation, Vin Changing

85%

86%

87%

88%

89%

90%

91%

92%

93%

94%

95%

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

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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