MAX16814_15 Datasheet, PDF (10/25 Pages) Maxim Integrated Products – Integrated, 4-Channel, High-Brightness LED Driver with High-Voltage DC-DC Controller

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