MAX16826_11 Datasheet, PDF (13/26 Pages) Maxim Integrated Products – Programmable, Four-String HB LED Driver with Output-Voltage Optimization and Fault Detection

Programmable, Four-String HB LED Driver with
Output-Voltage Optimization and Fault Detection
FB
VCC
CSS
I²C BUS
1.25V
6μA
SWR DAC
-
SET
SQ
OVP
+
RQ
OVP COMPARATOR _CLR
SHDN
STBY
SYNC
RTCT
CS
OSCILLATOR
MAX16826
CURRENT-
RAMP
GENERATOR
26μA/μs
ANALOG
MUX
ERROR AMPLIFIER
-
+
COMP
-
+
SOFT-START COMPARATOR
VCC
10μA
PWM COMPARATOR
-
+
SET
SQ
DL
RQ
CLR
200mV
270mV
+
-
+
-
CURRENT-LIMIT
COMPARATORS
RSC
Figure 2. Switch Regulator Controller Block Diagram
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