SC5010H データシートの表示（PDF） - Semtech Corporation

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SC5010H

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

Semtech Corporation 

Typical Characteristics (continued)

LED Current Fade In/Out (Logarithmic)

50mA/string, 6P10S

PWMI

5V/div.

VIO1

5V/div.

VOUT

20V/div.

IO_LED (total)

200mA/div.

Time (40ms/div)

Line Transient Response

100% Dimming, 50mA/string, 6P10S

20V

VIN

6.5V

10V/div.

VLX

20V/div.

VOUT (ac coupled)

1V/div.

IO_LED (total)

200mA/div.

Time (2µs/div)

Load Transient Response

PWMI (10kHz) = 2% to 98%, VIN = 12V, 50mA/String X 6

Fading disabled

V_PWMI

5V/div.

VO

(ac coupled)

200mV/div.

IO_LED (total)

100mA/div.

Time (100µs/div)

SC5010H

LED Current Fade In/Out (Linear)

PWMI

5V/div.

VIO1

5V/div.

VOUT

20V/div.

IO_LED (total)

200mA/div.

Time (40ms/div)

LED Open Circuit Protection

Starting with one LED string open-circuit

FLT

5V/div.

VEN

5V/div.

VOUT

20V/div.

IO_LED (total)

200mA/div.

Time (20ms/div)

Load Transient Response

PWMI (10kHz) = 98% to 2%, VIN = 12V, 50mA/String X 6

Fading disabled

V_PWMI

5V/div.

VO

(ac coupled)

200mV/div.

IO_LED (total)

100mA/div.

Time (100µs/div)



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