LTC3210-1

PRODUCTION

LTC3210-1

MAIN/CAM LED Controller with 64-Step Brightness Control in 3mm × 3mm QFN

PRODUCTION

Part Details

4-LED MAIN Display Efficiency vs VBAT Voltage slide

4-LED MAIN Display Efficiency vs VBAT Voltage

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1ku List Price Starting From $2.29

Features

Low Noise Charge Pump Provides High Efficiency with Automatic Mode Switching
Multimode Operation: 1x, 1.5x, 2x
Individual Full-Scale Current Set Resistors
Up to 500mA Total Output Current
Single Wire EN/Brightness Control for MAIN and CAM LEDs
64:1 Linear Brightness Control Range for MAIN Display
Four 25mA Low Dropout MAIN LED Outputs
One 400mA Low Dropout CAM LED Output
Low Noise Constant-Frequency Operation
Low Shutdown Current: 3μA
Internal Soft-Start Limits Inrush Current During Startup and Mode Switching
Open/Short LED Protection
No Inductors
3mm × 3mm × 0.75mm 16-Lead Plastic QFN Package

Additional Details

The LTC3210-1 is a low noise charge pump DC/DC converter designed to drive four MAIN LEDs and one high current CAM LED for camera lighting. The LTC3210-1 requires only four small ceramic capacitors and two current set resistors to form a complete LED power supply and current controller.

Built-in soft-start circuitry prevents excessive inrush current during start-up and mode changes. High switching frequency enables the use of small external capacitors. Independent MAIN and CAM full-scale current settings are programmed by two external resistors.

Shutdown mode and current output levels are selected via two logic inputs. ENM and ENC are toggled to adjust the LED currents via internal counters and DACs. A 6-bit linear DAC (64 steps) provides high resolution brightness control for the MAIN display.

The charge pump optimizes efficiency based on the voltage across the LED current sources. The part powers up in 1x mode and will automatically switch to boost mode whenever any enabled LED current source begins to enter dropout. The LTC3210-1 is available in a 3mm × 3mm × 0.75mm 16-lead QFN package.

Applications

Multi-LED Light Supply for Cell Phones/DSCs/PDAs

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Ask a Question

Submit your question below and we will return the best answer from ADI’s knowledge database:

Other places you can find help

Support

Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.

Visit the ADI Support Page

Ask the ADI community for help.

Ask the EngineerZone Community

FAQs

Sales & Ordering FAQs

Part Models 2

1ku List Price Starting From $2.29

Documentation

Technical Documents 3

LTC3210-1: MAIN/CAM LED Controller with 64-Step Brightness Control in 3mm × 3mm QFN Data Sheet 06/17/2010

R415 Reliability Data 03/23/2018

DC1022A - Demo Manual 09/24/2009

Design Resources 2

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
LTC3210EUD-1#PBF	16-Lead QFN (3mm x 3mm x 0.75mm w/ EP)	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LTC3210EUD-1#TRPBF	16-Lead QFN (3mm x 3mm x 0.75mm w/ EP)	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys

LTC3210EUD-1#PBF
Pin/Package Drawing
16-Lead QFN (3mm x 3mm x 0.75mm w/ EP)
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

LTC3210EUD-1#TRPBF
Pin/Package Drawing
16-Lead QFN (3mm x 3mm x 0.75mm w/ EP)
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

Software & Part Ecosystem

Companion Parts 2

Parts	Product Life Cycle	Description
Digital Temperature Sensors1
LTC2991	RECOMMENDED FOR NEW DESIGNS	Octal I²C Voltage, Current, and Temperature Monitor
Serial Bus Buffers, Extenders, and Accelerators1
LTC4311	PRODUCTION	Low Voltage I²C/SMBus Accelerator

Evaluation Kit

DC1022A

LTC3210EUD-1 | Main/CAM LED Controller; Requires DC590 Board

DC1022A

LTC3210EUD-1 | Main/CAM LED Controller; Requires DC590 Board

Buy Now View Details

Product Detail

DC1022A: Demo Board for the LTC3210-1 MAIN/CAM LED Controller with 64-Step Brightness Control in 3mm × 3mm QFN

Resources

ZIP

DC1022A - Design File

931.00K

PDF

DC1022A - Demo Manual

436.00K

PDF

DC1022A - Schematic

61.00K

DC1022A

LTC3210EUD-1 | Main/CAM LED Controller; Requires DC590 Board

Tools & Simulations

LTspice 1

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.