SC5010HEVB データシートの表示（PDF） - Semtech Corporation

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SC5010HEVB

High Efficiency 8-Channel LED Driver with I2C Interface and Phase-Shifted PWM Dimming

Semtech Corporation 

Typical Characteristics

Backlight Efficiency vs. Input Voltage

6P10S

100 %

95 %

90 %

40mA/string

85 %

50mA/string

30mA/string

80 %

75 %

0

5

10

15

20

25

30

VIN (V)

Backlight Efficiency vs. LED String Current

95 %

90 %

VIN = 12V

50mA/string

85 %

80 %

75 %

30mA/string

40mA/string

70 %

65 %

60 %

55 %

50 %

0

20

40

60

80

100

LED PWM Dimming Duty Cycle (%)

PWM Dimming Linearity with Phase Shift

50mA/string, 6P10S, 20kHz Dimming

100 %

10 %

VIN = 27V

1%

VIN = 6.5V

0.1 %

VIN = 20V

VIN = 12V

0.01 %

VIN = 12V

0.1

1

10

100

LED PWM Dimming Duty Cycle (%)

SC5010H

Backlight Efficiency vs. Input Voltage

50mA/string

96 %

92 %

88 %

6P6S

6P10S

6P8S

84 %

80 %

5

10

15

20

25

30

VIN (V)

Backlight Efficiency vs. LED String Current

95 %

90 %

85 %

VIN = 6.5V

50mA/string

80 %

75 %

30mA/string

40mA/string

70 %

65 %

60 %

55 %

50 %

0

20

40

60

80

100

LED PWM Dimming Duty Cycle (%)

PWM Dimming Linearity with Phase Shift

50mA/string, VIN = 6.5V, 6P10S

100 %

10 %

200Hz/1kHz Dimming

1%

0.1 %

30kHz Dimming

0.01 %

0.001 %

0.1

20kHz Dimming

10kHz Dimming

1

10

100

LED PWM Dimming Duty Cycle (%)



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