SY84402LMG-TR

Series:	--
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Obsolete
Moisture Sensitivity Level (MSL):	--
Type:	Laser Diode Driver
Data Rate:	4.25Gbps
Number of Channels:	1
Voltage - Supply:	3 V ~ 3.6 V
Current - Supply:	50mA
Current - Modulation:	--
Operating Temperature:	-40°C ~ 85°C
Package / Case:	10-VFQFN Exposed Pad, 10-MLF®
Supplier Device Package:	10-MLF® (2x2)
Mounting Type:	Surface Mount
Base Part Number:	SY84402

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Introduction

SY84402LMG-TR is an integrated, automotive-grade laser driver from the PMIC-Laser Drivers family. It is designed to drive high-power vertical cavity surface emitting lasers (VCSELs) that require a current of up to 3A and a peak current of up to 5A. This driver is engineered for harsh automotive environments to ensure reliable operation, high performance and long life of the VCSELs in automotive applications such as LiDAR and night vision.

Features

The SY84402LMG-TR is a flexible and highly integrated design that combines a configurable high-density voltage regulator, and advanced current regulation, temperature and fault monitoring, and protection features. It offers precise current control and stable output voltage over a wide temperature range for reliable operation. The SY84402LMG-TR also features safety features including over voltage protection (OVP), under voltage lockout (UVLO) and output current monitoring to protect the VCSEL from overcurrent and overtemperature conditions.The SY84402LMG-TR meets the requirements of UL , CSA, and IEC standards and is compatible with automotive-grade connectors and mounting solutions to simplify designs. The SY84402LMG-TR is also optimized for system efficiency with its low quiescent current and Power GaN integration.

Applications

The SY84402LMG-TR is designed for automotive-grade applications that require high-performance VCSEL laser drivers. It can be used in a variety of applications including LiDAR, rotating angle LiDAR, night vision, and rangefinding.

Working Principle

The SY84402LMG-TR is designed to provide reliable, high-performance operation in harsh automotive environments. Its advanced current regulation and protection features ensure stable current over a wide temperature range without compromising safety or reliability. The SY84402LMG-TR features a configurable high-density voltage regulator, and advanced current regulation, temperature and fault monitoring, and protection features.The SY84402LMG-TR integrates a Pulse Width Modulated (PWM) current source that provides precise current control. Output current is regulated internally using an adjustable voltage reference and comparator. The comparator compares the feedback signal from the VCSEL with the reference voltage to compare the current with the given set point. In case of an overcurrent event, integrated protection will limit the current and a fault signal can be sent out. Overvoltage, Undervoltage and Overtemperature conditions are also monitored in real time to maximize safety and reliability.

Conclusion

The SY84402LMG-TR is an automotive-grade laser driver designed to drive high-power vertical cavity surface emitting lasers (VCSELs) that require a current of up to 3A and a peak current of up to 5A. It combines a configurable high-density voltage regulator, advanced current regulation, temperature and fault monitoring, and protection features. The SY84402LMG-TR is optimized for system efficiency with its low quiescent current and Power GaN integration. It is designed for automotive-grade applications such as LiDAR and night vision and meets the requirements of UL, CSA, and IEC standards.

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