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See Technical Specifications

FAN7688SJX +BOM

Resonant Controller with Synchronous Rectifier Control

Manufacturer:

onsemi
Mfr.Part #:

FAN7688SJX
Datasheet:

FAN7688SJX Datasheet (PDF)
Programmabe:

Not Verified
Applications:

Secondary-Side Controller, Synchronous Rectifier
Voltage - Supply:

0V ~ 18V
Current - Supply:

80 µA
EDA/CAD Models:

Request Free CAD Models for FAN7688SJX

FAN7688SJX General Description

The FAN7688SJX is a cutting-edge PFM controller designed specifically for LLC resonant converters with SR, offering unparalleled efficiency for isolated DC/DC converters. Utilizing a current mode control technique with a charge control mechanism, this controller combines the oscillator's triangular waveform with switch current data to accurately determine the switching frequency. This unique approach results in a superior control-to-output transfer function, simplifying feedback loop design and enabling true input power limit capability. Additionally, the closed-loop soft-start feature prevents error amplifier saturation and ensures a smooth, monotonic rise in output voltage under varying load conditions. With dual edge tracking adaptive dead time control, the FAN7688SJX effectively minimizes body diode conduction time, maximizing overall efficiency and performance

Key Features

Fault-Tolerant Operation with Redundancy
Safe and Reliable Power Delivery for High-Power Applications
Advanced Synchronous Rectifier Control for LLC Resonant Converter
Precision Current Control for High-Efficiency Operation

Application

Advanced LED backlighting solution
Efficient power supply for TVs
Isolation for industrial power systems

Specifications

Programmabe	Not Verified	Applications	Secondary-Side Controller, Synchronous Rectifier
Voltage - Supply	0V ~ 18V	Current - Supply	80 µA
Operating Temperature	-40°C ~ 125°C	Mounting Type	Surface Mount
Base Product Number	FAN7688