|
|
PDF IS31FL3189 Data sheet ( Hoja de datos )
| Número de pieza | IS31FL3189 | |
| Descripción | AUDIO MODULATED LED DRIVER | |
| Fabricantes | ISSI | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de IS31FL3189 (archivo pdf) en la parte inferior de esta página. Total 17 Páginas | ||
|
No Preview Available !
IS31FL3189
AUDIO MODULATED LED DRIVER
GENERAL DESCRIPTION
The IS31FL3189 is an LED driver with an audio
synchronization mode that virtually eliminates the need
of real time software processing for LED lighting
effects.
The OUT0~9 can be operated at 4 basic modes:
Audio synchronization mode, top-down scan mode,
constant current mode, combination of audio
synchronization and top-down scan mode.
Each of the OUT0~2, OUT7~9 is a constant current
sink pulse width modulated in 256 steps, featuring One
Shot Programming mode and Interface Intensity
Control mode for RGB lighting effects. The output
current is user selectable to be one of 5 levels, 17.5mA,
28.9mA, 38.9mA, 46.7mA or 66.5mA (typical). At
38.9mA the IS31FL3189 outputs require only 0.4V of
headroom voltage.
In One Shot Programming mode, the timing
characteristics for output current - current ramping up,
holding, ramping down and off time, can be adjusted
individually so that each output can independently
maintain a pre-established pattern without requiring
any additional interface activity, thus saving valuable
system resources.
In Interface Intensity Control mode, the PWM duty
cycle of each output can be independently
programmed and controlled in 256 steps to simplify
color mixing.
APPLICATIONS
Cellular phones
MP3/MP4/CD/minidiskplayers
Digital picture frame/toys
November 2011
FEATURES
10 outputs each with 38.9mA at 0.4V headroom.
2 independently controlled, 6 channels of 256
steps PWM RGB LED drivers with programmable
brightness and blinking patterns for LED’s lighting
effects
Fully programmable operating modes:
Audio synchronization mode
Audio synchronization +Top-down scan mode
Top-down scan mode
Constant current mode
One Shot Programming mode with Gamma
correction
Interface intensity control mode with 256 steps
current level setting for RGB lighting effects
RGB blink/not blink with audio mode
Each outputs enable/disable individually
Programmable parameter setting:
Audio gain setting
Top-down scan mode output current setting
Top-down scan mode scan rate setting
RGB mode output current setting
Programmable Output Current Level settings
For Anode-common LEDs
VDD Range: 3.0V to 5.5V
Package: QFN-20, 3mm × 3mmhttp://www.DataSheet4U.net/
TYPICAL APPLICATION CIRCUIT
Figure 1 Typical Application Circuit
Integrated Silicon Solution, Inc. – www.issi.com
Rev.A, 11/14/2011
1
datasheet pdf - http://www.DataSheet4U.net/
1 page  
IS31FL3189
DIGITAL INPUT SWITCHING CHARACTERISTICS (Note 2)
Symbol
Parameter
Condition Min. Typ. Max. Unit
fCK SCK Frequency
1.0 MHz
tCH SCK High Time
200 ns
tCL SCK Low Time
200 ns
tDH SDI SetupTime
50 ns
tDS SDI High Time
50 ns
tCSS
_____
CS to SCK Rise Setup Time
250 ns
tCSCP
CS_____ Rising Edge to SCK Rising Edge
200
ns
tCSH
_____
CS Pulse High Time
300
Note 1: Production testing of the device is performed at 25°C. Functional operation of the device and parameters specified over other
temperature range, are guaranteed by design, characterization and process control.
Note 2: Guaranteed by design.
ns
http://www.DataSheet4U.net/
Integrated Silicon Solution, Inc. – www.issi.com
Rev.A, 11/14/2011
5
datasheet pdf - http://www.DataSheet4U.net/
5 Page 
IS31FL3189
OUTx_EN
0
1
Output States
Output Off
Output On
Table 14 Top-down_EN Registers (1Fh)
Bit
Name
D7:D5
-
D4
Top-down_EN_________________________
D3: D0
-
Default
000
0 0000
Top-down_EN Register controls the on or off state of
top-down scan mode. This function is designed for the
application where constant output current is needed.
When IS31FL3189 is working in top-down scan mode,
setting
D4 of Top-down register to “1”， the IS31FL3189 can
keep the output always turned on, and the output
current range can be set by writing the RC register
(D4:D2 of Audio Input Gain Register(01h)).
_________________________
Top-down_EN
0
1
Top-down Scan Mode Enable
Enable
Disable
Table 15 RGB Gain2 Register (20h)
Bit D7:D2
D1
D0
Function
-
RGB1_C
RGB2_C
Default 000000
0
0
RGB Gain2 Register makes RGB current on the fifth
setting at 17.5mA.
D1 RGB1 Current Setting
1 RGB1 Current is Set To 17.5mA
0 RGB1 Current is Set By REG 03h
D0 RGB2 Current Setting
1 RGB2 Current is Set To 17.5mA
0 RGB2 Current is Set By REG 03h
http://www.DataSheet4U.net/
Integrated Silicon Solution, Inc. – www.issi.com
Rev.A, 11/14/2011
11
datasheet pdf - http://www.DataSheet4U.net/
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet IS31FL3189.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| IS31FL3189 | AUDIO MODULATED LED DRIVER | ISSI |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |