IC reference design search
IC manufacturers Analog Devices

IC manufacturers (103)

reference designLT3952A

Analog Devices LT3952A

60V LED Driver with 4A Switch Current

Overview

TopologySEPIC Buck-Boost Topology
Input voltage5-35 V
Switching frequency2000-3000 kHz
Output 117 V / 0.4 A
IC revisionA

Description

The LT®3952A is a current mode step-up DC/DC converter with an internal, 60V, 80mΩ DMOS power switch. The LT3952A is specifically designed to drive high power LEDs in multiple configurations. It combines input and output current regulation loops with output voltage regulation to operate as a flexible current/voltage source.

Features

  • 4000:1 True Color PWM™ Dimming
  • 4A, 60V Internal DMOS Switch
  • Wide Input Voltage Range: 3V to 42V
  • 0V to 60V Output Current Regulation with Monitor
  • PMOS Switch Driver for PWM and Output Disconnect
  • LED Short-Circuit Protection and SHORTLED Flag
  • Internal Spread Spectrum Frequency Modulation

Typical applications

  • Display Backlighting, Automotive and Avionic Lighting
  • Accurate Current-Limited Voltage Regulators

More information

Products

Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L1(µH)
L2(µH)
IR(A)
IR 2(A)
ISAT(A)
RDC1 typ(Ω)
RDC2 typ(Ω)
RDC1 max(Ω)
RDC2 max(Ω)
fres(MHz)
Type
SamplesAvailability & Sample
744874100
SPECWE-DD SMT Shielded Coupled Inductor, 10 µH, 10 µH
Simu­lation
Availability
–
Downloads9 files

EDA models: Components ZIP

CAD files ZIP

Electric models ZIP

Download all 9 files as zip archive
ZIP

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-DD SMT Shielded Coupled Inductor
Inductance 110 µH
Inductance 210 µH
Rated Current3.28 A
Rated Current 23.28 A
Saturation Current5.25 A
DC Resistance 10.038 Ω
DC Resistance 20.038 Ω
DC Resistance 10.044 Ω
DC Resistance 20.044 Ω
Self Resonant Frequency24 MHz
TypeStraight 
–Check availability