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reference designLT3966

Analog Devices LT3966

I2C Programmable Quad Monolithic Boost LED Driver

Overview

TopologyBoost Converter
Input voltage7-17 V
Switching frequency300-4000 kHz
Output 130 V / 0.25 A
Output 230 V / 0.25 A
Output 330 V / 0.25 A
Output 430 V / 0.25 A

Description

The LT®3966 is an I2C programmable monolithic boost LED driver with four independent channels. Each channelprovides a 60V current mode boost converter with an internal 1.6A DMOS power switch, as well as internal and external analog and PWM dimming features. I2C programmable features include a 13-bit (8192:1) digital PWM generator, 8-bit analog dimming DAC, and flexible fault reporting and handling.

Features

  • Four Independent DC/DC Channels
  • I2C Programmable
  • 8192:1 True Color PWM™ Dimming
  • 8-Bit Analog Dimming Pin Scaled by DAC
  • 11-Channel, 8-Bit ADC with 2 External Inputs
  • 1.6A, 60V Internal DMOS Switches
  • Input Voltage: 3V to 60V
  • Output Voltage and Current Monitoring to 60V
  • High Side PMOS Disconnect and PWM Switch Driver
  • Adjustable Frequency: 300kHz to 4MHz with Optional Frequency Synchronization
  • Thermally Enhanced 6mm × 6mm 40-Lead QFN Package
  • AEC-Q100 Qualification in Progress

Typical applications

  • Backlighting
  • Heads Up Displays

More information

Products

Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
IRP,40K(A)
ISAT(A)
RDC max.(mΩ)
fres(MHz)
Size
Version
SamplesAvailability & Sample
7447785006
SPECWE-PD SMT Power Inductor, 6.8 µH, 2.3 A
Simu­lation
Availability
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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-PD SMT Power Inductor
Inductance6.8 µH
Performance Rated Current2.3 A
Saturation Current2 A
DC Resistance100 mΩ
Self Resonant Frequency45 MHz
Size6033 
VersionRobust 
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