
2MHz, High-Brightness LED Drivers with
Integrated MOSFET and High-Side Current Sense
IN
V CC
REGULATOR
V CC _ANA
MAX16822A
MAX16822B
I SET
LX
V CC _ANA
CS
CURRENT-SENSE
COMPARATOR
GATE
DRIVER
0.85 Ω , 65V
DMOS SWITCH
PWM
BANDGAP
1.23V
DIMMING
REFERENCE
UVLO
COMPARATOR
DIM
DIM
BUFFER
V CC _ANA
25 μ A
TEMP_I
PGND
THERMAL
FOLDBACK
Figure 1. Internal Block Diagram
V TFB_ON
2V
GND
COMPARATOR
6
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