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Products » FAN6862 Highly Integrated Green-Mode PWM Controller

FAN6862 − Highly Integrated Green-Mode PWM Controller

A highly integrated PWM controller, FAN6862 provides several features to enhance the performance of flyback converters. To minimize standby power consumption, a proprietary green-mode function provides off-time modulation to continuously decrease the switching frequency under light-load conditions. Under zero-load conditions, the power supply enters burst-mode, which completely shuts off PWM output. Output restarts just before the supply voltage drops below the UVLO lower limit. This green-mode function enables power supplies to meet international power conservation requirements.

The FAN6862 is designed for SMPS and integrates a frequency-hopping function that helps reduce EMI emission of a power supply with minimum line filters. The built-in synchronized slope compensation is proprietary sawtooth compensation for constant output power limit over universal AC input range. The gate output is clamped at 18V to protect the external MOSFET from over-voltage damage.

Other protection functions include V_DD over-voltage protection and over-temperature protection. For over-temperature protection, an external NTC thermistor can be applied to sense the ambient temperature. When V_DD OVP or OTP is activated, an internal latch circuit latches off the controller.

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Product Status/Pricing/Packaging

Index	Product	Product & Eco Status	*Pricing	Packaging & Packing Info	**Package Marking Convention	Qualification Support	Compliance Certificates
0	FAN6862TY	Full Production Green as of Jun 2009	$0.39	SSOT 6L Details SSOT 6L Drawing TAPE REEL	Line 1:&E (Space) &E (Space) &Y (Binary Calendar Year Coding) Show more... Line 2:&O (Plant Code) ABDB&C (Die Run) Line 3:&. (Pin One) &O (Plant Code) &E (Space) &V (Eight Week Binary Datecoding)	FIT : 1 ESD (HBM) : 3000 V Moisture Sensitivity Level (MSL) : 1 Show more... Max Reflow Temp : 260	RoHS IPC1752 RoHS/REACH/JIG RoHS/REACH/JIG
0	FAN6862NY	Last time buys being accepted until 14-Sep-2013 Green as of Dec 2009	$0.46	MDIP 8L Details MDIP 8L Drawing RAIL	Line 1:$Y (Fairchild logo) &Z (Plant Code) &2 (2-Digit Date Code) &K Line 2:FAN6862 Line 3:NYB	FIT : 1 ESD (HBM) : 3000 V Moisture Sensitivity Level (MSL) : NA Show more... Max Reflow Temp : 999	RoHS IPC1752 RoHS/REACH/JIG RoHS/REACH/JIG

Fairchild 1,000 piece Budgetary Pricing. *
If there is no sample button displayed at the top of the page, please contact one of the Fairchild distributors or your local sales office to obtain samples.
Top mark packaging information for product FAN6862 is available. **

Features

Low Startup Current: 8µA
Low Operating Current in Green Mode: 3mA
Peak-Current Mode Operation with Cycle-by-Cycle Current Limiting
PWM Frequency Continuously Decreasing with Burst Mode at Light Loads
V_DD Over-Voltage Protection (OVP)
Constant Output Power Limit (Full AC Input Range)
Internal Latch Circuit for OVP, OTP
Fixed PWM Frequency (65KHz) with Frequency Hopping
Feedback Open-Loop Protection with 56ms Delay
Soft-Start Time: 4ms
400mA Driving Capability

Applications

Notebook PC

Wireless LAN Access Point/Router

External AC-DC Merchant Power Supply - Wireless Communications

DVD

STB

Reference Designs

Application	Document Number	Featured Products	Output Power	Input Voltage	Topology
Netbook Adapter	RD-337	FAN6862, FAN6862H, FAN6862HR, FAN6862L, FAN6862R	40W	90-265V_AC	Flyback Converter

Additional Resources

Design Tools Knowledgebase – Ask a Question Find a local sales office Product change notices (PCN) How to Buy Products or Order Samples

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