RT9269CE 데이터 시트보기 (PDF) - Richtek Technology

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RT9269CE

Tiny Package, High Efficiency, Constant Current LED Driver

Richtek Technology 

RT9269

Preliminary

Power ON Waveform

VIN = 3.0V for 4LEDs

VIN

LX

200mA/DIV

IIN

IOUT

20mA/DIV

Refer to Application Circuit Fig. 3

Time (2.5mS/DIV)

LX vs. Output Ripple Waveform

VIN = 3.0V for 4LEDs

LX

Output

20mA/DIV

IOUT

Refer to Application Circuit Fig. 3

Time (500nS/DIV)

Power Up Waveform

VIN = 3.0V

IOUT = 20mA

VIN

LX

CE

IOUT

20mA/DIV

Refer to Application Circuit Fig. 3

Time (250µS/DIV)

Power ON Waveform

VIN = 2.5V for 4LEDs

VIN

LX

IIN

IOUT

200mA/DIV

20mA/DIV

Refer to Application Circuit Fig. 3

Time (2.5mS/DIV)

LX vs. Output Ripple Waveform

VIN = 2.5V for 4LEDs

LX

Output

20mA/DIV

IOUT

Refer to Application Circuit Fig. 3

Time (1µS/DIV)

Power Up Waveform

VIN = 2.5V

IOUT = 20mA

VIN

LX

CE

IOUT

20mA/DIV

Refer to Application Circuit Fig. 3

Time (100µS/DIV)

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6

DS9269-01 March 2003

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