Datasheet

8
Atmel MSL3086/MSL3088 Datasheet
8-String 60mA LED Drivers with Integrated Boost Controller and Phase Shifted Dimming
5.0 Typical Operating Characteristics (continued)
(Typical Operating Circuit, unless otherwise stated, TA = +25°C, unless otherwise noted)
MSL3086/MSL3087/MSL3088 Datasheet
Page 7 of 26
© Atmel Inc., 2011. All rights reserved.
POWER-UP WAVEFORMS INTO 100% DUTY CYCLE
(ZOOM IN)
CH1 = V
EN
, CH2 = V
LED
, CH3 = V
STRx
, CH4 = I
PWR
AUTO CALIBRATION
CH2 = V
LED
, CH3 = V
STRx
BOOST WAVEFORMS
10% LED DUTY CYCLE
CH1 = V
LED
, CH2 = V
GATE
, CH3 = I
INDUCTOR
BOOST WAVEFORMS
100% LED DUTY CYCLE
CH1 = V
LED
, CH2 = V
GATE
, CH3 = I
INDUCTOR
MSL3086/MSL3087/MSL3088 Datasheet
Page 8 of 26
© Atmel Inc., 2011. All rights reserved.
BOOST REGULATOR WAVEFORMS
10% TO 99.5% LED DUTY CYCLE
CH1 = V
LED
, CH2 = V
GATE
, CH3 = V
PWM
, CH4 = I
INDUCTOR
AUTOMATIC PHASE SHIFTED PWM DIMMING
CH1 = V
STR0
, CH2 = V
STR2
, CH3 = V
STR4
, CH4 = V
STR6
EXTERNAL SYNC AND PWM
MSL3088
CH1 = V
SYNC
, CH2 = V
PWM
, CH3 = V
STR0
EXT SYNC AND PWM, FREQUENCY MULTIPLIED
MSL3088
CH1 = V
SYNC
, CH2 = V
PWM
, CH3 = V
STR0