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PDF LXY28161 Data sheet ( Hoja de datos )
| Número de pieza | LXY28161 | |
| Descripción | 16-channel constant current LED Driver | |
| Fabricantes | LINGXINYU SCIENCE AND TECHNOLOGY | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LXY28161 (archivo pdf) en la parte inferior de esta página. Total 16 Páginas | ||
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LXY28161 USER’S MANUAL
LXY28161 USER’S MANUAL
JULY 2008
V1.0
Pay attention to the last page
SHENZHEN LINGXINYU SCIENCE AND TECHNOLOGY CO., LTD
1
1 page  
LXY28161 USER’S MANUAL
Pin Name
GND
SDI
CLK
LE
OUT0～15
NC
SDO
R-EXT
Pin No.
1
2
3
4
5～20
21
22
23
Type
Power
Schmitt trigger
input
Schmitt trigger
input
Schmitt trigger
input
Output
-
Controllable
staggered
output delay
Controlling
VDD 24 Power
2.2 Maximum Rating
Function
Ground terminal for control
logic and current sink
Serial-data input to the shift
register
Clock input terminal for data
shift on rising edge
Data strobe terminal and
controlling command with DCLK
Constant current output
terminal, 5-60mA
-
10ns，20ns，30ns selectable.
Serial-data output to the
receiver-end SDI of next
driver IC
Input terminal used to connect
an external resistor for
setting up output current for
all output channels
5V supply voltage terminal
Characteristic
Supply Voltage
Input Pin Voltage (SDI)
Output Current
Sustaining Voltage at OUT Port
Data Clock Frequency
GND Terminal Current
Power Dissipation L Type
(On PCB, Ta=25°C) S Type
Thermal Resistance L Type
(On PCB, Ta=25°C) S Type
Operating Temperature
Storage Temperature
Symbol
VDD
VIN
IOUT
VDS
DCLK
IGND
PD
PD
R )th(j-a
Topr
Tstg
Rating
7
-0.4～
VDD+0.4
+60
7
+25
+1000
2.12
1.73
59.1
72.43
-40～+85
-55～+150
Unit
V
V
mA
V
MHz
mA
W
W
°C/W
°C
°C
SHENZHEN LINGXINYU SCIENCE AND TECHNOLOGY CO., LTD
5
5 Page 
LXY28161 USER’S MANUAL
2.12 Thermal Protection Function
The thermal protection function is enabled by default. The
output current will decrease to 25%. As soon as the temperature is
below 110℃, the thermal error flag will return to 0 and the output
current will recover from the 25% current.
2.13 LED Supply Voltage
LXY28161 are designed to operate with VDS ranging from 0.4V to
0.8V (depending on IOUT=5 ～ 60mA), considering the package power
dissipating limits. VDS may be higher enough to make when VLED＝5V，
PD (act) < PD (max) when VLED=5V and VDS=VLED–VF, in which VLED is the
load supply voltage. In this case, it is recommended to use the
lowest possible supply voltage or to set an external voltage reducer,
VDROP. A voltage reducer lets VDS=(VLED – VF) – VDROP. Resistors or
Zener diode can be used in the applications as shown in the following
figures.
2.14 Switching Noise Reduction
LED drivers are frequently used in switch-mode applications
which always behave with switching noise due to the parasitic
inductance on PCB. To eliminate switching noise, refer to Application
Note for 8-bit and 16-bit LED Drivers-Overshoot.
SHENZHEN LINGXINYU SCIENCE AND TECHNOLOGY CO., LTD
11
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet LXY28161.PDF ] | |
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