MIC2860_D Datasheet, PDF (7/12 Pages) Micrel Semiconductor – High Efficiency 2 Channel WLED Driver with Single Wire Digital Control

Micrel Inc.
D1, D2
The D1 and D2 pins are the linear driver inputs for
WLED 1 and 2 respectively. Connect the anodes of the
WLEDs to V_IN and each cathode of the WLEDs to D1
and D2. When operating with a single WLED, D1 and D2
should be connected to the WLED cathode to parallel
the outputs for improved dropout performance.
Paralleling these pins can also be done to drive a higher
current through a single WLED. Do not leave these pins
floating
MIC2860-2D
GND
The ground pin is the ground path for the linear drivers.
The current loop for the ground should be as small as
possible. The ground of the input capacitor should be
routed with low impedance traces to the GND pin and
made as short as possible. Refer to the layout
recommendations for more details.
July 2010
7
M9999-072010-A