Moteur de recherche de fiches techniques de composants électroniques
  French  ▼

Delete All
ON OFF
ALLDATASHEET.FR

X  

Preview PDF Download HTML

SP7683 Fiches technique(PDF) 1 Page - Sipex Corporation

No de pièce SP7683
Description  Four Channel Charge Pump Regulator LED Driver
Download  8 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricant  SIPEX [Sipex Corporation]
Site Internet  http://www.sipex.com
Logo SIPEX - Sipex Corporation

SP7683 Fiches technique(HTML) 1 Page - Sipex Corporation

  SP7683 Datasheet HTML 1Page - Sipex Corporation SP7683 Datasheet HTML 2Page - Sipex Corporation SP7683 Datasheet HTML 3Page - Sipex Corporation SP7683 Datasheet HTML 4Page - Sipex Corporation SP7683 Datasheet HTML 5Page - Sipex Corporation SP7683 Datasheet HTML 6Page - Sipex Corporation SP7683 Datasheet HTML 7Page - Sipex Corporation SP7683 Datasheet HTML 8Page - Sipex Corporation  
Zoom Inzoom in Zoom Outzoom out
 1 / 8 page
background image
1
Date: 12/21/04
SP7683 Four Channel Charge Pump LED Driver
© Copyright 2004 Sipex Corporation
SP7683
FEATURES
■ 2.7V to 5.5V Input Voltage Range
■ Up to 4 LEDS with matching currents
■ LEDs can be Driven from the Charge
Pump Output
■ 1X and 1.5X Mode Charge Pump
■ High Efficiency Operation
■ 1.2 MHz Switching Frequency
■ Programable LED Drive Capabliity
■ PWM Dimming Control
■ Low 0.5µA Shutdown Current
■ Soft-Start Limits Inrush Current
■ Output Overvoltage Protection
■ Thermal Shutdown Protection
■ QFN (4mm x 4mm) package
Four Channel Charge Pump Regulator LED Driver
APPLICATIONS
■ Smart Phones
■ Cell Phones
■ PDA's
■ Digital Cameras
■ MP3 Players
■ Other Portables
The SP7683 is high efficiency Charge Pump which regulates up to four white LEDs with matching
current. Based on the supply headroom available for the four precision current sinks, SP7683
automatically switches between 1X and 1.5X modes. The part powers up in 1X mode, with low
quiescent current of 70uA (typ) and remains in 1X mode as long as the LED current has not
decreased by more than 0.5%. If the current decreases, then it switches into 1.5X mode where
it regulates the lowest of the LED cathode voltages to 0.1V. Other features include soft-start, over
current protection, overvoltage protection and thermal shutdown at 140°C. Offered in 4X4 16 pin
QFN.
®
TYPICAL APPLICATION SCHEMATIC
Now Available in Lead Free Packaging
Advanced
DESCRIPTION
R1
50k - 200k
GND
R3
100k
LED_EN
U1
SP7683
R5
10k
R4
270k
R9
100k
C1
1uF
C5
1uF
C4
1uF
C2
1uF
R2
1M
D1
D2
EN
Vin
D3
D4
C3
0.1uF
R10
100k
®
®
SP7683
1
2
7
4
6
5
3
9
8
12
13
10
11
14
15 16
R
SET
C1P
SP7683
4x4 mm
16 Pin QFN
8
7
6
5
4
3
2
1
FB
On/Off
LED3
LED4
12
11
10
9
16
15
14
13
I
SET
V
MODE
V
IN


Html Pages

1  2  3  4  5  6  7  8 


Fiches technique Télécharger

Go To PDF Page

Numéro de composants électroniques

No de pièceDescriptionHtml ViewFabricant
CM4072 Low Noise Charge Pump/Linear Regulator LED Driver 1  2  3  4  5  More California Micro Devices Corp
SP6687 4 Channel Charge Pump White LED Driver 1  2  3  4  5  More Sipex Corporation
FAN5607 LED Driver with Adaptive Charge Pump DC/DC Converter 1  2  3  4  5  More Fairchild Semiconductor
CM9153 Charge Pump White LED Driver 1  2  3  4  5  More California Micro Devices Corp
CM9156A Charge Pump White LED Driver 1  2  3  4  5  More California Micro Devices Corp
SP7685 1.2A Buck/Boost Charge Pump LED Driver 1  2  3  4  5  More Sipex Corporation
ADM8840 Charge Pump Regulator & COM Driver for Color TFT Panel 1  2  3  4  5  More Analog Devices
TCA62735AFLG Charge Pump type DC/DC Converter for White LED Driver 1  2  3  4  5  More Marktech Corporate
TB62733FTG Charge Pump type DC/DC Converter for White LED Driver 1  2  3  4  5  More Toshiba Semiconductor

Lien URL




Politique de confidentialité
ALLDATASHEET.FR
ALLDATASHEET vous a-t-il été utile ?  [ DONATE ] 

À propos de Alldatasheet   |   Publicité   |   Contactez-nous   |   Politique de confidentialité   |   Echange de liens   |   Fabricants
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn