LT3496

Name: LT3496
Brand: Analog Devices
Price: 5.54 USD
Availability: InStock

PRODUCTION

Triple Output LED Driver

Data Sheet Product Selection Table

Part Models: 10
1ku List Price: Starting From $5.31

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Overview

True Color PWM^™ Dimming Delivers Up to 3000:1 Dimming Ratio
Built-In Gate Driver for PMOS LED Disconnect
Three Independent Driver Channels with 750mA, 45V Internal Switches
Operates in Buck, Boost, Buck-Boost Modes
CTRL Pin Accurately Sets LED Current Sense Threshold Over a Range of 10mV to 100mV
Adjustable Frequency: 330kHz to 2.1MHz
Open LED Protection
Wide V_IN Supply Range:
- Operation from 3V to 30V
- Transient Protection to 40V
Surface Mount Components
28-Lead (4mm × 5mm) QFN and TSSOP Packages

Part Models: 10
1ku List Price: Starting From $5.31

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
LT3496EFE#PBF	28-Lead TSSOP w/ EP	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LT3496EFE#TRPBF	28-Lead TSSOP w/ EP	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LT3496EUFD#PBF	28-Lead QFN (4mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LT3496EUFD#TRPBF	28-Lead QFN (4mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LT3496HUFD#PBF	28-Lead QFN (4mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LT3496HUFD#TRPBF	28-Lead QFN (4mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LT3496IFE#PBF	28-Lead TSSOP w/ EP	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LT3496IFE#TRPBF	28-Lead TSSOP w/ EP	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LT3496IUFD#PBF	28-Lead QFN (4mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LT3496IUFD#TRPBF	28-Lead QFN (4mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

May 18, 2026 - 26_0072 Epoxy Change for Select TSSOP Products
		PCN26_0072_Form Material_Report
LT3496EFE#PBF	PRODUCTION
LT3496EFE#TRPBF	PRODUCTION
LT3496IFE#PBF	PRODUCTION
LT3496IFE#TRPBF	PRODUCTION
Apr 6, 2022 - 22_0068 Laser Top Mark for ETSSOP and TSSOP Packages Assembled in ADPG [PNG] and UTL
		PCN22_0068_Form Material_Report
LT3496EFE#PBF	PRODUCTION
LT3496EFE#TRPBF	PRODUCTION
LT3496IFE#PBF	PRODUCTION
LT3496IFE#TRPBF	PRODUCTION
Feb 20, 2022 - 21_0269 Addition of Alternate Assembly Site ASE Taiwan for Select LFCSP Products
		PCN21_0269_Form Material_Report Detailed Change Description
LT3496EUFD#PBF	PRODUCTION
LT3496EUFD#TRPBF	PRODUCTION
LT3496HUFD#PBF	PRODUCTION
LT3496HUFD#TRPBF	PRODUCTION
LT3496IUFD#PBF	PRODUCTION
LT3496IUFD#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
Circuit Monitors 1
LT2940	PRODUCTION	Power and Current Monitor
Ideal Diodes and PowerPath Controllers 1
LT4320 LT4320-1		Ideal Diode Bridge Controller
Pulse-Width Modulation (PWM) & Pulse Generators 1
LTC6992		TimerBlox: Voltage-Controlled Pulse Width Modulator (PWM)
Temperature Sensors 1
LTC2991	RECOMMENDED FOR NEW DESIGNS	Octal I²C Voltage, Current, and Temperature Monitor

Tools & Simulations

LTspice 3

Models for the following parts are available in LTspice:

LT3496

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.

Evaluation Kits

LT3496EUFD Demo Circuit | Buck-Mode Triple LED Driver, 3V ≤ VIN ≤ 45V, VLED up to 45V (x3)

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Product Details

Demonstration circuit 986 is a Triple Step-Down LED Driver featuring the LT3496EUFD. The LT3496 is a triple output DC/DC converter designed to operate as current sources for driving high current LEDs. Each ofthe three regulators on the demo board is independently operated. The default current for each output channel is 500mA. The output current should not exceed the rated current of the LEDs used. The maximum voltage of an LED string the demo board can drive is limited by the duty cycle and the input voltage of the LT3496.

The maximum power input voltage (PV_IN ) is 45V. As a result, each channel of the demo board can drive up to ~31V total LED voltage. The LT3496's input voltage range is 3V to 30V (with 40V transients), however to minimize power dissipation the demo board uses a 3V to 5.5V supply.

Resources

DC986A - Design File
9/24/2009

DC986A - Demo Manual
9/24/2009

DC986A - Schematic
9/24/2009

LT3496EUFD Demo Circuit | Buck-Boost or Boost Triple Output LED Driver, 8V ≤ VIN ≤ 16V, VLED up to 36V @ 200mA (×3)

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Product Details

Demonstration circuit 1288 is a Triple Boost or Buck-Boost LED Driver featuring the LT3496EUFD (for evaluating an LT3496 buck mode LED driver, use the demonstration circuit 986). The LT3496 is a triple output DC/DC converter designed to operate as current sources for driving high current LEDs. The board can be configured as either a buck-boost (default) or boost solution. The current for each output is set at 200mA in either mode. The three LEDs are included in the demo board assembly.

The operating power input voltage (PVIN) range is 8V to 16V. The buck-boost circuit can tolerate an input voltage up to 40V when the LED string is on the high side. The part shuts down when the overvoltage threshold is reached. For a typical application with 5 LEDs totaling 16V of LED voltage, the circuit will operate until PVIN reaches 22V if the overvoltage protection is set to 38V.