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ADP8863:  Charge Pump, 7-Channel Fun Lighting LED Driver

Product Status:Recommended for New Designs
Data
Sheet
ADP8863 Data Sheet Rev A, 06/2010 (pdf 777kB)

Product Details

Product Status:Recommended for New Designs
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The ADP8863 combines a powerful charge pump driver with advanced autonomous LED lighting features. It allows as many as seven LEDs to be independently driven up to 30 mA (maximum). The seventh LED can be also driven to 60 mA (maximum). All LEDs are programmable for maximum current and fade in/out times via the I2C interface.

Additionally, automated blinking routines can be independently programmed and enabled for all seventh LED channels. These LEDs can also be combined into groups to reduce the processor instructions. Driving this entire configuration is a two-capacitor charge pump with gains of 1×, 1.5×, and 2×. This setup is capable of driving a maximum IOUT of 240 mA from a supply of 2.5 V to 5.5 V. The device includes a variety of safety features including shortcircuit, overvoltage, and overtemperature protection. These features allow easy implementation of a safe and robust design. Additionally, input inrush currents are limited via an integrated soft start combined with controlled input to output isolation.

The ADP8863 is available in a compact LFCSP (lead frame chip scale package).

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FEATURES and BENEFITS

  • Automated blinking and funlight timing for each LED driver
  • 16 programmable fade in and fade out times: 0.1 sec to 5.5 sec; Selectable linear, square, or cubic fade rates
  • 7 independent and programmable LED drivers: 7 drivers capable of 30 mA (maximum); 1 driver also capable of 60 mA (maximum)
  • Programmable maximum current limit (128 levels)
  • Separate and independent controls for backlight LEDs
  • Backlight fade override
  • Up to two built-in comparator inputs with programmable modes for ambient light sensing
  • Charge pump with automatic gain selection of 1x, 1.5x, and 2x for maximum efficiency
  • Standby mode for <1 μA current consumption
  • I2C-compatible interface for all programming
  • Dedicated reset pin and built-in power-on reset (POR)
  • Short-circuit, overvoltage, and overtemperature protection
  • Internal soft start to limit inrush currents
  • Input-to-output isolation during faults or shutdown
  • Operation down to VIN = 2.5 V with undervoltage lockout (UVLO) at VIN = 2.0 V
  • Small lead frame chip scale package (LFCSP)

Functional Block Diagram

Functional Block Diagram
Typical Applications and Other Diagrams

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Of note ...

If purchasing either the ADP8863DBCB-EVALZ or the ADP8863DBCP-EVALZ, please make sure you also purchase the ADP886XMB1-EVALZ
MB and eval board are both required!

Documentation

Title Content Type File Type
ADP8863: Charge Pump, 7-Channel Fun Lighting LED Driver Data Sheet (Rev A, 06/2010) (pdf, 777 kB) Data Sheets PDF
Isolating Power in Communication Bus and Gate Drive Applications
Starting with a communications application overview of small power options through the process of selecting the right power products this webcast is a great resource for your communications applications designs. 		Webcasts WEBCAST
UG-005: Software User Guide  (pdf, 471 kB)
Describes the functionality of the ADP8860 LED driver and provides software development guidelines. The ADP8860 communicates with an external processor using an I2C interface and an interrupt line (nINT). The processor sends initialization and activation commands to the ADP8860, which acts as a slave device. 		User Guides PDF
Low-Voltage Current Sink Controls High-Voltage LED String  (pdf)
Discusses how a single programmable LED driver can be combined with a low-cost boost converter to achieve a flexible, high-efficiency, easy-to-program solution. 		Analog Dialogue PDF
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

Design Tools,Models,Drivers & Software

Title Content Type File Type
ADP8860 Back-light LED Linux Driver (Wiki Site) Device Drivers HTML

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

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Price, packaging, availability

ADP8863 Model Options
Model Package Pins Temp.
Range 		Packing,
Qty 		Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADP8863ACBZ-R7 Status: Production CHIPS W/SOLDER BUMPS/WLSCP 20 Ind Reel, 3000 - $1.22 Y  Material Info PCN Purchase Sample
ADP8863ACPZ-R7 Status: Production LFCSP:LEADFRM CHIP SCALE 20 Ind Reel, 1500 - $1.53 Y  Material Info Notify Me Purchase Sample
Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

ADP8863 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADP8863DBCB-EVALZ Status: Pre-Release Evaluation Board - Yes - Contact ADI
ADP8863DBCP-EVALZ Status: Pre-Release Evaluation Board - Yes - Contact ADI

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

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