MAX16824 Datasheet, PDF (10/14 Pages) Maxim Integrated Products – High-Voltage, Three-Channel Linear High-Brightness LED Drivers

High-Voltage, Three-Channel Linear
High-Brightness LED Drivers
LE
CLK
DIN
DOUT
t_CH
t_CL
t_CP
50%
50%
50%
t_DH
t_DS
50%
DO
50%
D1
50%
t_LS
50%
t_LW
50%
D2
t_DO
50%
DO
t_OEW
OE
50%
50%
OUT_
t_OEL
t_F
t_OEH
80%
20%
t_R
Figure 3. 4-Wire Serial-Interface Timing Diagram
Pulse-Width Dimming (MAX16825)
The MAX16825 provides three methods of pulsed-width
current dimming.
One method of pulse dimming the output channels is to
drive OE low while latching a different set of three bits
data. Holding OE low allows the output channels to fol-
low the state of the output latches. The duty cycle
depends on LE’s frequency. All output channels are
affected at the same time.
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