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reference designSGM3775Q | Demoboard SGM3775Q Demo Board

SG-Micro SGM3775Q | Demoboard SGM3775Q Demo Board

Automotive High Accuracy LED Controller with Spread Spectrum Frequency Modulation

Overview

TopologyBoost Converter
Input voltage7-18 V
Switching frequency80-700 kHz
Output 160 V
IC revision1

Description

The SGM3775Q is a peak current mode, asynchronous controller for LED lights. The device supports Boost, Buck-Boost, SEPIC and Flyback configurations to meet multi-purpose applications. The SGM3775Q features a wide 4.5V to 65V input voltage range and supports up to 65V output voltage.The switching frequency can be set by the RT pin, or it can be synchronized by an external clock signal. The configurable frequency spread spectrum function is available to improve EMI performance.

Features

  • AEC-Q100 Qualified for Automotive Applications Device Temperature Grade 1
  • TA = -40℃ to +125℃
  • 4.5V to 65V Wide Input Voltage Range
  • Programmable Switching Frequency
  • Support External Synchronized Frequency
  • Frequency Spread Spectrum
  • External Analog Dimming via IADJ Pin
  • External PWM Dimming via DIM/PWM Pin
  • Integrated P-Channel Dimming MOSFET Driver
  • Flexible External Loop Compensation
  • Flexible External Slope Compensation
  • Support Boost, Buck-Boost, SEPIC and Flyback Topologies
  • Short LED Protection
  • Open LED Protection
  • Thermal Shutdown
  • Fault Indicator
  • High LED Current Accuracy (< ±5%) over -40℃ to +150℃ Junction Temperature Range
  • Available in a Green TSSOP-20A (Exposed Pad) Package

Typical applications

  • Automotive Exterior Lighting Applications, Driver Monitoring Systems (DMS)
  • LED General Lighting Applications, Exit Signs and Emergency Lighting

More information

Products

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
IRP,40K(A)
ISAT,10%(A)
ISAT,30%(A)
RDC max.(mΩ)
fres(MHz)
Mount
IR,40K(A)
Size
Version
SamplesAvailability & Sample
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74437349033
SPECWE-LHMI SMT Power Inductor, 3.3 µH, 7.5 A
Simu­lation
Availability
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Downloads9 files

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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-LHMI SMT Power Inductor
Inductance3.3 µH
Performance Rated Current7.5 A
Saturation Current @ 10%7.9 A
Saturation Current @ 30%15.1 A
DC Resistance20.9 mΩ
Self Resonant Frequency26 MHz
MountSMT 
Rated Current6 A
Size7050 
VersionSMT 
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744770122
SPECWE-PD SMT Power Inductor, 22 µH, 5.8 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
Inductance22 µH
Performance Rated Current5.8 A
Saturation Current @ 10%5 A
Saturation Current @ 30%6.5 A
DC Resistance35 mΩ
Self Resonant Frequency12 MHz
MountSMT 
Rated Current4.6 A
Size1280 
VersionStandard 
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