SP7121 Datasheet, PDF (6/11 Pages) Sipex Corporation – 2-Channel Adjustable Low Dropout High Side Linear LED Driver

APPLICATION CIRCUITS
SP7121 Powering 2 LEDs
Powering high 1 high power LED with SP7121 IOUT up to 50mA
PWM FUNCTION -- 2 LEDs
TYPICAL PERFORMANCE CHARACTERISTICS
PWM minimum duty cycle 5kHz
Channel 1 PWM signal; Channel 2 ISET pin;
Channel 3 VLED; Channel 4 ILED 20ma/Div
PWM minimum duty cycle 20kHz
Channel 1 PWM signal; Channel 2 ISET pin;
Channel 3 VLED; Channel 4 ILED 20ma/Div
Sept 11 - 07 Rev E
SP7121 Low Dropout LED Driver
Page 6
© 2007 Sipex Corporation