LTC3220
LTC3220-1

Name: LTC3220
Brand: Analog Devices
Price: 3.95 USD
Availability: InStock

PRODUCTION

360mA Universal 18-Channel LED Driver

Data Sheet Product Selection Table

Part Models: 8
1ku List Price: Starting From $3.95

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Overview

Eighteen 20mA Universal Current Sources with 64-Step Linear Brightness Control
Independent On/Off, Brightness Level, Blinking and Gradation Control for Each Current Source Using 2-Wire I²C Interface
Low Noise Multi-Mode Charge Pump (1x, 1.5x, 2x) Provides Up to 91% Efficiency
Slew Limited Switching Reduces Conducted and Radiated Noise (EMI)
Up to 360mA Total Output Current
Internal Current Reference
Single Reset Pin for Asynchronous Shutdown and Reset of All Data Registers
Two I²C Addresses Are Available (LTC3220: 0011100, LTC3220-1: 0011101)
Automatic or Forced Mode Switching
Internal Soft-Start Limits Inrush Current
Short-Circuit/Thermal Protection
4mm × 4mm Ultrathin (0.55mm) 28-Lead QFN Package

Part Models: 8
1ku List Price: Starting From $3.95

Documentation

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
LTC3220EPF#PBF	28-Lead UTQFN (4mm x 4mm x 0.55mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTC3220EPF#TRPBF	28-Lead UTQFN (4mm x 4mm x 0.55mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTC3220EPF-1#PBF	28-Lead UTQFN (4mm x 4mm x 0.55mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTC3220EPF-1#TRPBF	28-Lead UTQFN (4mm x 4mm x 0.55mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTC3220IPF#PBF	28-Lead UTQFN (4mm x 4mm x 0.55mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTC3220IPF#TRPBF	28-Lead UTQFN (4mm x 4mm x 0.55mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTC3220IPF-1#PBF	28-Lead UTQFN (4mm x 4mm x 0.55mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTC3220IPF-1#TRPBF	28-Lead UTQFN (4mm x 4mm x 0.55mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Apr 9, 2025 - 25_0016 Bond Wire Change from Gold to Copper Wire (Notification Only)
		PCN25_0016_Form Material_Report
LTC3220EPF#PBF	PRODUCTION
LTC3220EPF#TRPBF	PRODUCTION
LTC3220IPF#PBF	PRODUCTION
LTC3220IPF#TRPBF	PRODUCTION
Feb 14, 2025 - 25_0016 Bond Wire Change from Gold to Copper Wire (Notification Only)
		PCN25_0016_Form Material_Report
LTC3220EPF-1#PBF	PRODUCTION
LTC3220EPF-1#TRPBF	PRODUCTION
LTC3220IPF-1#PBF	PRODUCTION
LTC3220IPF-1#TRPBF	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
Digital to Analog Converters (DACs) 1
LTC2657	PRODUCTION	Octal I²C 16-/12-Bit Rail-to-Rail DACs with 10ppm/°C Max Reference
Level Translators & Buffers 1
LTC4317	PRODUCTION	Dual I²C/SMBus Address Translator
Temperature Sensors 1
LTC2991	RECOMMENDED FOR NEW DESIGNS	Octal I²C Voltage, Current, and Temperature Monitor

Evaluation Kits

LTC3220EPF Demo Board | 18-LED Boost Charge Pump LED Driver, 2.9V ≤ VIN ≤ 5.5V, VLED up to 5V at 20mA per LED (DC590 Requires)

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Product Details

Demonstration circuit 1265 is a 360mA (20mA per LED) Universal 18-Channel LED Driver with twelve white LEDs and two RGB LEDs featuring the LTC3220/LTC3220-1. The LTC3220/LTC3220-1 is a low noise boost charge pump designed to drive 18 universal LED (ULED) current sources. The charge pump automatically switches between 1x, 1.5x and 2x modes to provide the necessary output voltage. The demo board input supply voltage range is 2.9V to 5.5V. DC1265A-A features the LTC3220, and DC1265A-B features the LTC3220-1. The two parts have different I²C addresses, allowing both devices to be used in a system if more than 18 LED drivers are needed.

The DC1265 requires the DC590 controller board for proper operation. The 18 LEDs are includes on the demo board. The LTC3220/LTC3220-1 features include On/Off blinking, gradation, intensity, and a software controlled shutdown, which are accomplished via an I²C serial interface. There are 64 dimming states available for the universal LEDs.