|
|
PDF AX2008 Data sheet ( Hoja de datos )
| Número de pieza | AX2008 | |
| Descripción | White LED Backlight Controller | |
| Fabricantes | AXElite | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de AX2008 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
|
No Preview Available !
0755-8398 3377 135 9011 2223
AX2008 (Preliminary)http://www.gofotech.com
8-String, White LED Backlight Controller
GENERAL DESCRIPTION
The AX2008 is a step-up current mode PWM DC/DC converter with built-in power
MOSFET and eight channel current sources. It is designed for driving white LED arrays for
medium size LCD panel backlight applications.
The AX2008 features dynamic output voltage control function, which automatically
chooses the lowest sense voltage of multiple channels to regulate the feedback voltage of
step-up converter. Through the function, the AX2008 is able to dynamically adjust output
voltage of step-up converter to optimize the system power efficiency.
The internal step-up converter provides soft-start feature which is determined by
external compensation components. The switching frequency is programmable by an
external resistor, which is helpful for optimizing the external components sizes and
improving the efficiency. In shutdown mode, current consumption of converter can be
reduced to only 1uA.
The AX2008 provides eight channels constant current sinks with maximum ±3%
current matching. The LED current can be adjusted by an external resistor, which provides
users flexibility to control the light intensity of LEDs. In addition, users can precisely adjust
LED brightness from 0% to 100% via PWM pin with pulse width modulation.
The AX2008 has multiple features to protect the converter from fault conditions. The
adjustable over-voltage protection (OVP) function prevents the converter when output
loading is open. Over-current protection (OCP) function ensures the system reliability and
provides consistent operation. Over-temperature protection (OTP) function protects the
converter from overheating in various application conditions.
The AX2008 provides space-saving, thermal enhanced 20-pin TSSOP exposed pad
and QFN 4mm x 4mm packages as well to handle power dissipation more efficiently.
1/10
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.0.1 Nov.05, 2010
1 page  
0755-8398 3377 135 9011 2223
AX2008 (Preliminary)http://www.gofotech.com
ORDER/MARKING INFORMATION
Order Information
Top Marking
ABSOLUTE MAXIMUM RATINGS (at TA = 25°C)
Characteristics
Symbol
Rating
Unit
VIN to GND
28 V
SW to GND
-0.3 to +40
V
ISEN1~ISEN8 to GND
-0.3 to +40
V
ENA,VREF,RT,OVP,ISET,SSTCMP,PWM to GND
-0.3 to +6
V
Power Dissipation
PD
(TJ – TA)/ θJA
W
Storage Temperature Range
TST
-65 to +150
°C
Junction Temperature
+160 °C
Lead Temperature (Soldering, 10sec.)
260 °C
Supply Voltage
VIN 4.5 to 25 V
Boost Converter Output Voltage
≦40
V
Operation Temperature Range
TOP
-40 to +85
°C
Note : θJA is measured with the PCB copper are (need connect to Exposed pad) of approximately 1 in2(Multi-layer).
5/10
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.0.1 Nov.05, 2010
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet AX2008.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| AX2000 | (AX2000 - AX2011) Portable CD Player |  Philips |
| AX2000 | Axcelerator Family FPGAs |  Actel |
| AX2001 | (AX2000 - AX2011) Portable CD Player | Philips |
| AX2001 | 0.25V Feedback Voltage Step-Down Switching Regulators | AXElite |
| 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 |