16-Channel Constant-Current LED Driver
A6282
Functional Block Diagram
VDD
UVLO and TSD
SDI
SDO
Serial - Parallel Shift Register
CLK
OE
LE
Control Logic
Block
Latches
Output Control Drivers
REXT
IO
Regulator
Exposed Pad
(ET and LP packages)
OUT15
GND
OUT0 OUT1
VLED
Inputs and Outputs Equivalent Circuits
Resistor values are equivalent resistance and not tested
VDD
VDD
500 Ω
10 Ω
CLK, SDI,
LE, O¯¯E¯
SDO
Allegro MicroSystems, Inc.
115 Northeast Cutoff
3
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com