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reference designLT3762

Analog Devices LT3762

60V Synchronous Boost LED Controller

Overview

TopologyBoost Converter
Input voltage3-40 V
Switching frequency100-1000 kHz
Output 125 V / 1 A

Description

LT3762 is a synchronous DC/ DC controller designed to operate as a constant current source and constant voltage regulator. it features a programmable internal PWM dimming signal generator and a synchronous gate driver.

Features

  • 3000:1 External PWM Dimming
  • 250:1 Internal PW, Dimming(5% accuracy)
  • Wide Vin Operating Range: 2.5V to 40 V
  • Synchronous Boost Output Voltage up to 60V
  • Spread-Spectrum Frequency Modulation For Lower EMI
  • PMOS Switch Driver for PWM and Output Disconnect
  • Constant current(+/-3.5%) regulation
  • Constant current(+/-2%) regulation
  • Rail-tp-rail LED current sense: 0V to 60V
  • Programmable Vin Undervoltage Lockout
  • Analog Dimming via two conttrol pins
  • 100kHz to 1MHz Operation
  • Programmable Open LED Protection with OPENLED Flage
  • Shor-circuit protection and SHORTLED Flag
  • 28 lEAD TSSOP and QFN (4mm x 5mm) Exposed Pad Packages
  • Drives LEDs in Boost, Buck, or Buck-Boost Configurations

Typical applications

  • Industrial and Automotive Lighting/ Accurate Current-Limited Voltage Regulators

More information

Products

Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
IRP,40K(A)
ISAT(A)
RDC max.(Ω)
Size
Version
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
744873220
SPECWE-DD SMT Shielded Coupled Inductor, 22 µH, –
Simu­lation
Availability
–
Downloads9 files

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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
Inductance22 µH
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Saturation Current5 A
DC Resistance0.07 Ω
Size1280 
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Inductance 122 µH
Inductance 222 µH
Rated Current2.79 A
Rated Current 22.79 A
Saturation Current5 A
DC Resistance 10.058 Ω
DC Resistance 20.058 Ω
DC Resistance 10.07 Ω
DC Resistance 20.07 Ω
Self Resonant Frequency11.5 MHz
TypeStraight 
–Check availability
7447785147
SPECWE-PD SMT Power Inductor, 47 µH, 0.88 A
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-PD SMT Power Inductor
Inductance47 µH
Performance Rated Current0.88 A
Saturation Current0.74 A
DC Resistance0.6 Ω
Size6033 
VersionRobust 
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Self Resonant Frequency16.5 MHz
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–Check availability