Datasheet

11
MSL2021 [DATASHEET]
42062A–LED–02/2013
6. Block Diagram
Figure 6-1. MSL2021 block diagram
REGULATORS
AVIN
REXT
1.2V
CURRENT
GENERATOR
G
S
DAC
ADC
PWM
EFFICIENCY OPTIMIZER
FBO
DRV
C
OFF
S
R
Q
QB
VREF
CS
CONTROL LOGIC
EN
FAULT
DETECT
FLTB
TOFF
CURRENT
GENERATOR
OSCILLATOR
D
VCC
VDD
PVIN
MUX
DAC
START
CLOCK
VREF
PWM DIGITIZER
THM
400HZ PWM
GENERATOR
AND
DUTY CYCLE
ENGINE
VREF
PGND
AGND
LOOK-UP TABLE EEPROM
SDCR REGISTER