SC5014AEVB データシートの表示（PDF） - Semtech Corporation

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SC5014AEVB

High Efficiency 2-Channel HB LED Driver with I2C Interface and Direct PWM Dimming

Semtech Corporation 

Start-up into LEDs Open-circuit Protection

SC5014A

Unused String

Testing condition: VIN=12V,VCC=5V, LEDs=10S4P@100mA, 1MHz,

Typical Characte25rкi,sIOt1&icIOs2 o(pcenontinued)

LED Open Circuit Protection

Starting with one LED string open-circuit

VIN

8V/div.

VIN

VOUT

Testing condition: VIN=12V,VCC=5V, LEDs=10S4P@100mA, 1MHz,

25к ,IO1&IO2 short to GND

Unused String

Starting with one unused LED string

VIN

8V/div.

VIN

VOUT

VOUT

10V/div.

IOUT

IOUST tart-up into Short circuit Protection

200mA/div.

/FLT

5V/div.

Testing condition: VIN=12twV,oVLCECD=Ts5iVms,hLeoEr(tD5csmi=rc1su0/iStd4iPv@) 100mA, 1MHz, 25к ,

/FLT

LED Short Circuit Protection

Two LEDs short Circuit in one string

VOUT

10V/div.

IOUT

100mA/div.

/FLT

VIN Start UP

5V/div.

Testing condition: VIN=12V,VCCT=5imV,eLE(5Dsm=1s0/Sd4iPv@) 100mA, 1MHz, 25к

Start Up by Vin

10S2P, 240mA/CH

VIN

VIN

8V/div.

VOUT

VIN

5V/div.

IOUT

/FLT

VIN

VOUT

VOUT

10V/div.

IOUT

200mA/div.

/FLT

Load Transient Response

5V/div.

Testing conditionP:WVIMNI==1120VK,H2z5,кTDiu,mLtyEe=D0(s.55=%m10Ssto4/dP99@iv%1)00mA/CH, 1MHz,

Load Transient Response

PWM(10KHz)=0.5% to 99%, VIN=12V, 200mA/CH X 2

VOUT

5V/div.

VIO1

5V/div.

IOUT

200mA/div.

PWMI

6V/div.

Time (100us/div)

IOUT

/FLT

VOUT

VOUT

10V/div.

IOUT

200mA/div.

Load Transient Response

VIO1

5V/div.

Testing conditionP:WVIMNI==1120VK,H2z5,кTDiu,mLtyEe=D9(s95=%m10tSso4/0dP.3@iv%1)00mA/CH, 1MHz,

Load Transient Response

PWM(10KHz)=99% to 0.3%, VIN=12V, 200mA/CH X 2

VOUT

1V/div.

V_IO1

IOUT

VIO1

5V/div.

IOUT

200mA/div.

SDA

PWMI

6V/div.

Time (100ms/div)

IOUT

V_IO1

VOUT

V_IO1

IOUT

SDA



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