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LDS8160
PIN DESCRIPTION
I C Serial clock input
I C Serial data input/output
I C Serial interface Addresses Programming
Pin #
1
2
3
4
6
8
9
10
11
12
13
14
Name
SCLK
SDAT
SADD
GND
EN
LEDC2
LEDC1
LEDB2
LEDB1
LEDA2
LEDA1
V IN
Function
2
2
2
Ground Reference
Device enable (active high)
LEDC2 anode terminal
LEDC1 anode terminal
LEDB2 anode terminal
LEDB1 anode terminal
LEDA2 anode terminal
LEDA1 anode terminal
Power Source Input; connect to battery or supply
15
5, 7, 16
PAD
TST
NC
PAD
Test pin
Not connect (no internal connect to the device)
Connect to GND on the PCB
Top view: TQFN 16-lead 3 X 3 mm
PIN FUNCTION
SADD is I C Serial interface Addresses Programming
pin that allows choice of one of four I C addresses
through I C interface after a 500 μsec wakeup
SDAT is the I C serial data line. This is a bidirectional
SCLK is the I C serial clock input.
V IN is the supply pin. A small 1 μ F ceramic bypass
capacitor is required between the V IN pin and ground
near the device. The operating input voltage range is
from 2.3 V to 5.5 V.
EN is the enable input for the device. Guaranteed
levels of logic high and logic low are set at 1.3 V and
0.4V respectively. When EN is initially taken high, the
device becomes enabled and can communicate
2
(initialization) period.
2
line allowing data to be written into and read from the
registers of the LDS8160
2
2
2
preprogrammed in device.
GND is the ground reference for internal circuitry.
The pin must be connected to the ground plane on
the PCB.
LEDA1 – LEDC2 provide the internal regulated
current sources for each of the LED anodes. These
pins enter high-impedance zero current state
whenever the device is in shutdown mode.
PAD is the exposed pad underneath the package.
For best thermal performance, the tab should be
soldered to the PCB and connected to the ground
plane
TST is a test pin used by factory only. Leave it
floating (no external connection)
? 2009 IXYS Corp.
Characteristics subject to change without notice
12
Doc. No. 8160_DS, Rev. N1.0
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