Datasheet

10 Maxim Integrated
Integrated, 4-Channel, High-Brightness LED
Driver with High-Voltage DC-DC Controller
MAX16814
Figure 1. Simplified Functional Diagram
FAULT FLAG
LOGIC
TSHDN
( = 50FA x f
sw
)
0.425V
OVP
COMP
ILIM
MAX16814
CS BLANKING
TSHDN
TSHDN
PWM
LOGIC
DRV
CLK
2.5V
NDRV
PGND
RT
CS
THERMAL
SHUTDOWN
SOFT-START
100ms
BANDGAP
V
REF
SS_REF
SS_DONE
UVLO
UVLO
5V LDO
REGULATOR
SLOPE
COMPENSATION
RAMP/RT OSC
LOGIC
(REF/FB
SELECTOR)
SHORT LED
DETECTOR
RSDTFLT
POKD
V
REF
LEDGND
OUT_
DIM
OPEN-LED
DETECTOR
LOGIC
MIN STRING
VOLTAGE
UNUSED
STRING
DETECTOR
SHDN
SHDN
SHDN
TSHDN
COMP
IN
V
CC
EN
FB
POKD
POK
V
BG
= 1.235V
V
BG
V
BG
SGND
SETIOVP
SHDN
REF
g
M
R
P
SGND
di
dt
1.23V