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PDF SC16739STR Data sheet ( Hoja de datos )
| Número de pieza | SC16739STR | |
| Descripción | 16-BIT CONSTANT CURRENT LED DRIVER | |
| Fabricantes | Silan Microelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de SC16739STR (archivo pdf) en la parte inferior de esta página. Total 13 Páginas | ||
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Silan
Microelectronics
SC16739_Datasheet
16-BIT CONSTANT CURRENT LED DRIVER
DESCRIPTION
SC16739 is a constant current LED driver. It includes a shift
register, data latches, constant current drivers and etc. There
are 16-channel constant current output, with 3-45mA current
available at each channel. This constant current can be set
through an external resistor.
SSOP-24-300-1.0 SSOP-24-225-0.635
FEATURES
16-channel CC(constant current) output
Output current adjustable through external resistor
Output current: 3-45mA@5V
Data serial-in/serial-out
30MHz DCLK frequency
Fast output current response, OE min. width: 20ns
Current accuracy
Accuracy
Between channels
Between ICs
±2%
±3%
QFN-24-4x4x0.75-0.5
APPLICATION
LED screen
ORDERING INFORMATION
Part No.
SC16739P
SC16739PTR
SC16739S
SC16739STR
SC16739QTR
Package
SSOP-24-300-1.0
SSOP-24-300-1.0
SSOP-24-225-0.635
SSOP-24-225-0.635
QFN-24-4×4×0.75-0.5
Marking
SC16739P
SC16739P
SC16739S
SC16739S
SC16739Q
Material
Pb free
Pb free
Pb free
Pb free
Pb free
Packing
Tube
Tape & Reel
Tube
Tape & Reel
Tape & Reel
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV 0.1 2012.3.20
Page 1 of 13
1 page  
Silan
Microelectronics
SC16739_Datasheet
PIN DESCRIPTION
Pin No.
SC16739P
SC16739S
SC16739Q
0 (heatsink at the
1
bottom)
2 24
31
42
5~6
3~4
7 10
89
9~12
5~8
13~20
11 ~ 18
21 19
22 20
23 21
24 22
/ 23
Pin Name
I/O
Description
GND
Ground
Ground
SDI
DCLK
LATCH
OUT0 ~ OUT1
OUT2
OUT3
OUT4~ OUT7
OUT8~ OUT15
OE
SDO
R-EXT
VDD
NC
I Serial data input of shift register
I Clock input of shift register
I Data latch control pin of shift register
I/O CC outputs 0~1
I/O CC output 2
I/O CC output 3
I/O CC outputs 4~7
I/O CC outputs 8~15
16-channel CC output enable pin (active
I
low)
O Serial data output of shift register
The resistor is connected between this
I/O pin and ground for 16-channel current
setting
-- Power supply
-- NC
FUNCTION DESCRIPTION
For LED display application, the serial data can be shifted from SDI to internal 16-bit shift register via DCLK
riding edge and shifted out at SDO. And the SDO of previous SC16739 can be connected to the next
SC16739 for cascade connection. The data in shift register can be stored in 16-bit data latch via LATCH
falling edge, to control on/off of 16-channel constant current source. The constant current source is
controlled by data latch when OE is low, and constant current source is off when OE is high, with high
impedance output. The current of constant current source can be set through an external resistor
connected to R-EXT.
Notes: there is only one ground pin shared as analog/digital/power ground. It is recommenced to adopting
the routing with minimum inductance to reduce conversion noise caused by input signal and fault caused
by output current. The proper output voltage is needed for better constant current output, and the voltage
can be obtained the minimum voltage according to the electrical characteristics. The resistor should be
placed near pin R-EXT to avoid noise on current.
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV 0.1 2012.3.20
Page 5 of 13
5 Page 
Silan
Microelectronics
PACKAGE OUTLINE
SSOP-24-225-0.635
SC16739_Datasheet
UNIT: mm
0.25
0.30±0.08
8.65±0.20
0.635
0.25±0.05
SSOP-24-300-1.0
UNIT: mm
1.0 TYP
0.43±0.15
13.5MAX
0.2
+0.1
-0.05
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV 0.1 2012.3.20
Page 11 of 13
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet SC16739STR.PDF ] | |
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