FSEZ1317A

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Primary-Side-Regulation PWM Controller with MOSFET Integrated with improved EMI performance

General Description

This third-generation Primary-Side-Regulation (PSR) and highly integrated PWM controller provides several features to enhance the performance of low-power flyback converters.The proprietary topology, TRUECURRENT®, of the FSEZ1317A enables precise CC regulation and simplified circuit design for battery-charger applications. A lower-cost, smaller, and lighter charger results, compared to conventional designs or a linear transformer.

To minimize standby power consumption, the proprietary green mode provides off-time modulation to linearly decrease PWM frequency under light-load conditions. Green mode assists the power supply in meeting power conservation requirements.

By using the FSEZ1317A, a charger can be implemented with few external components and minimized cost.

Product Status/Pricing/Packing

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 FSEZ1317A is available. **

Product	Product Status	Eco Status	*Pricing	Package Type	Leads	Packing Method	Package Drawing	**Package Marking Convention	Qualification Support	RoHS IPC1752	RoHS/REACH/ JIG Certificate of Compliance
FSEZ1317AMY_F116	Full Production	Green as of Dec 2010	$0.6573	SO 7L NB	7	TAPE REEL		Line 1:$Y (Fairchild logo) &Z (Asm. Plant Code) &2 (2-Digit Date Code) &K Line 2:EZ1317A Line 3:MYB	ESD (CDM) : 2000 V ESD (HBM) : 5000 V Moisture Sensitivity Level (MSL) : 1 Show more ... Max Reflow Temp : 260

Design Tools

Power Supply WebDesigner - Flyback Design & Simulation - In Minutes at No Expense - If you want to complete an off-line flyback converter design with minimal engineering time and expense, you've found the answer. Simply enter your input and output requirements, click on "Auto-Complete", and Power Supply WebDesigner (PSW) does the rest.Or if you prefer to fine tune parameters to optimize performance as you perform detailed analyses and simulations, all while eliminating the need for a hardware prototype, Power Supply WebDesigner does it all.PSW automatically generates a BOM and lets you confidentially save your design for future reference by you or others on your team. Start saving days-to-weeks of engineering time with PSW, whether you're a power supply expert or not.

Low Standby Power Under 30mW
High-Voltage Startup
Few External Components
Constant-Voltage (CV) and Constant-Current (CC) Control without Secondary-Feedback Circuitry
Green-Mode: Linearly Decreasing PWM Frequency
Fixed PWM Frequency at 50kHz with Frequency Hopping to Solve EMI Problem
Cable Compensation in CV Mode
Peak-Current-Mode Control in CV Mode
Cycle-by-Cycle Current Limiting
V_DD Over-Voltage Protection with Auto Restart
V_DD Under-Voltage Lockout (UVLO)
Gate Output Maximum Voltage Clamped at 15V
Fixed Over-Temperature Protection with Auto Restart
Available in the 7-Lead SOP Package

Applications

Lighting

Mobile Handsets

Videos

Introduction to Fairchild’s Power Supply WebDesigner, an Online Design and Simulation Tool

LED Lighting Total Solutions

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Reference Designs

Application	Document Number	Featured Products	Output Power	Input Voltage	Topology
LED Lighting	RD-L007	FSEZ1317, FSEZ1317A	6W	90-265V_AC	Low BOM PSR Flyback
Cell Phone Charger	RD-310	FSEZ1317, FSEZ1317A	3.5W	90-265V_AC	Primary-Side Regulated Flyback
LED Lighting	RD-L006	FSEZ1317, FSEZ1317A	4.2W	90-265V_AC	Low BOM PSR Flyback