MAX16838_11 Datasheet, PDF (11/21 Pages) Maxim Integrated Products – Integrated, 2-Channel, High-Brightness LED Driver with High-Voltage Boost and SEPIC Controller

Integrated, 2-Channel, High-Brightness LED Driver
with High-Voltage Boost and SEPIC Controller
Simplified Functional Diagram
DRAIN
GATE
NDRV
PGND
COMP
RT
CS
IN
DRV
POK SHDN
DIM
CS
DRIVER
PWM
LOGIC
PWM
COMP
1.8V
FLT
FLAG LOGIC
RT OSCILLATOR
SLOPE
COMPENSATION
CS BLANKING
GM
ILIM
120mV _0.3V
10
1.0V
SOFT-
START
DAC
1.17V
0
1
OV
DIM DUTY
TOO LOW
SHORT-LED
DETECTOR
OPEN-LED
DETECTOR
MINIMUM
STRING
VOLTAGE
ARRAY = 2
LOGIC
UVLO
DRV
VBG
5V LDO
BANDGAP
V_CC
1
UVLO
THERMAL
0
SHUTDOWN
IN
POK
EN
SHDN
VBG
VBG
SGND
LEDGND OV CFB
V_CC
MAX16838
ISET
OUT_
DIM
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