Datasheet

11Maxim Integrated
Integrated, 2-Channel, High-Brightness LED Driver
with High-Voltage Boost and SEPIC Controller
MAX16838
Simplified Functional Diagram
PWM
LOGIC
DRIVER
DRV
DRAIN
GATE
CS
NDRV
OUT_
DIM
PGND
COMP
RT
CS
IN
DRV
V
CC
EN
SGND LEDGND OV CFB ISET
POK SHDN
DIM
FLAG LOGIC
LOGIC
ARRAY = 2
PWM
COMP
GM
1.8V
1.0V
0.3V
1.17V
VBG
OV
DIM DUTY
TOO LOW
SOFT-
START
DAC
I
LIM
SHORT-LED
DETECTOR
OPEN-LED
DETECTOR
MINIMUM
STRING
VOLTAGE
FLT
RT OSCILLATOR
CS BLANKING
SLOPE
COMPENSATION
THERMAL
SHUTDOWN
BANDGAP5V LDO
UVLO
UVLO
IN
SHDN
POK
VBG
V
CC
VBG
0
1
10
OV
COMPARATOR
1
0
120mV
MAX16838