
8-Port, 5.5V Constant-Current LED Driver with
LED Fault Detection and Watchdog
Selector Guide
PART
NO. OF
OUTPUTS
MAX OUTPUT
VOLTAGE (V)
MAX OUTPUT
CURRENT
LED FAULT
DETECTION
WATCHDOG
MAX6968
—
—
MAX6977
MAX6978
MAX6970
MAX6981
MAX6980
MAX6969
MAX6984
MAX6979
MAX6971
MAX6982
MAX6983
8
8
16
16
5.5
36
5.5
36
55mA
Yes
Yes
—
Yes
Yes
—
Yes
Yes
—
Yes
Yes
—
Yes
—
—
Yes
—
—
Yes
—
—
Yes
Typical Application Circuit
5V
+5V
μ C
V+
MAX6978
OUT0
SCLK
MOSI
MISO
LOAD
ENABLE
360 ?
0V
0V
CLK
DIN
DOUT
LATCH
OE
SET
GND
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
OUT7
10
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