|
|
PDF EUP2595 Data sheet ( Hoja de datos )
| Número de pieza | EUP2595 | |
| Descripción | 32V Step-Up Converters | |
| Fabricantes | Eutech Microelectronics | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de EUP2595 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
|
No Preview Available !
EUP2595
32V Step-Up Converters
for Two to Nine White LEDs
DESCRIPTION
The EUP2595 is a constant current step-up converter
specially designed for driving white LEDs. The step-up
converter topology allows series connection of the
white LEDs so the LED currents are identical for
uniform brightness. The EUP2595 can drive 9 LEDs in
series. The brightness of the LEDs can be adjusted
through a voltage level on the CTRL pin or by
applying a PWM signal to CRTL pin.
1MHz current-mode, pulse-width modulated (PWM)
operation allows for small input and output capacitors
and a small inductor while minimizing ripple on the
input supply/battery. Programmable soft-start
eliminates inrush current during startup.
The EUP2595 is available in a space-saving, 8-pin
3mm x 3mm TDFN package.
FEATURES
z 2.6V to 5.5V Input Range
z 32V (max) Output with Overvoltage Protection
z Up to 90% Efficiency
z Flexible Analog or PWM Dimming Control
z Internal High Power MOSFET Switch
z < 1µA shutdown Current
z Fast 1MHz PWM Operation
z Small, Low-Profile Inductors and Capacitors
z 3mm × 3mm TDFN-8 Package
z RoHS Compliant and 100% Lead (Pb)-Free
APPLICATIONS
z Cell Phones and Smart Phones
z PDAs, Palmtops, and Wireless Handhelds
z e-Books and Subnotebooks
z White LED Display Backlighting
Typical Application Circuit
DS2595 Ver1.1 Aug. 2008
Figure 1. Typical Application Circuit
1
1 page  
EUP2595Tel: 0755-8398 3377 / 135 9011 2223 http://www.gofotech.com
Electrical Characteristics (Continued)
(VIN = 3V, Lin = 22µH, CIN = 2.2µ, COUT = 0.1µ, CCOMP = 0.1µF, RSENSE = 13Ω, VCTRL = 1.5V,
TA =-40°C to +85°C, unless otherwise noted. Typical values are at TA =25°C.)
Parameter
Conditions
EUP2595
Min Typ Max.
Unit
CS-to-COMP Transconductance Vcomp=1V
20 52 85 µS
OSCILLATOR
Operating Frequency
0.78 1 1.25 MHz
Minimal Duty Cycle
PWM Mode
Pulse Skipping
12
%
0
Maximum Duty Cycle
CTRL=IN , CS=GND
93.5 95 97.2 %
N-CHANNEL SWITCH
LX On-Resistance
0.35 0.86 1.40
LX Leakage Current
Vlx=32V, CTRL=GND
1 µA
LX Current Limit
Maximum Duty Cycle
550 1150 1720 mA
DS2595 Ver1.1 Aug. 2008
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet EUP2595.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| EUP2592 | 8-String White LED Driver | Eutech Microelectronics |
| EUP2592JIR1 | 8-String White LED Driver | Eutech Microelectronics |
| EUP2595 | 32V Step-Up Converters | Eutech Microelectronics |
| EUP2595JIR1 | 32V Step-Up Converters | Eutech Microelectronics |
| 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 |