DataSheetWiki


XRP7620 fiches techniques PDF

Exar Corporation - 4-Channel Adjustable Current I2C Controlled LED Driver

Numéro de référence XRP7620
Description 4-Channel Adjustable Current I2C Controlled LED Driver
Fabricant Exar Corporation 
Logo Exar Corporation 





1 Page

No Preview Available !





XRP7620 fiche technique
June 2009
XRP7620
4-Channel Adjustable Current I2C Controlled LED Driver
Rev. 1.0.0
GENERAL DESCRIPTION
The XRP7620 is a multi purpose 4-channel
independently adjustable current sink driver.
Optimized for LED backlighting and
RGBW/RGBA color mixing applications, the
XRP7620 can also be used as a generic
software programmable current sink I/O
expander.
Supporting an industry standard 2-wire I2C
serial interface, the XRP7620 provides full
independent control of each channel and can
be programmed up to a current of 31.5mA in
steps of 0.5mA. Uniform display brightness is
ensured through better than 3% channel to
channel current matching.
Five internal registers are provided to set
operational configuration and individual
channel current programmation. A specific
shutdown mode allows the device to retain the
previously loaded configuration – operational
and current programming – in order to be
reused upon the next enabling.
The XRP7620 is designed to operate from a
single cell lithium-ion battery or fixed 3.3V or
5.0V power rails and is available in a RoHS
compliant, “green”/halogen free space saving
8-pin 2mmx3mm DFN package.
APPLICATIONS
LCD Display & Keypad Backlighting
Color Coded Indicator Lighting
RGBW/RGBA Color Mixing
Cell Phones & Handheld Devices
Generic Current Sink I/O Expander
FEATURES
4-Channel LED Current Sink Driver
Individual Channel Current Control
Up to 31.5mA per channel / 0.5mA Steps
100mV Channel Dropout Voltage
I2C Serial Interface
2.7V - 5.5V Input Voltage Range
3% Channel Current Matching
Register Retention in Shutdown
Shutdown Current <1µA
Thermal and UVLO Built-in Protection
RoHS Compliant, “Green”/Halogen
Free 2x3mm 8-Pin DFN package
www.DaTtaYSPheIeCt4UA.cLomAPPLICATION DIAGRAM
Fig. 1: XRP7620 Application Diagram
Exar Corporation
48720 Kato Road, Fremont CA 94538, USA
www.exar.com
Tel. +1 510 668-7000 – Fax. +1 510 668-7001

PagesPages 11
Télécharger [ XRP7620 ]


Fiche technique recommandé

No Description détaillée Fabricant
XRP7620 4-Channel Adjustable Current I2C Controlled LED Driver Exar Corporation
Exar Corporation

US18650VTC5A

Lithium-Ion Battery

Sony
Sony
TSPC106

PCI Bus Bridge Memory Controller

ATMEL
ATMEL
TP9380

NPN SILICON RF POWER TRANSISTOR

Advanced Semiconductor
Advanced Semiconductor


www.DataSheetWiki.com    |   2020   |   Contactez-nous  |   Recherche