Name: Primary-Side-Regulation PWM Controller (PWM-PSR)
Brand: Primary-Side-Regulation PWM Controller (PWM-PSR)
SKU: FAN103W

Primary-Side-Regulation PWM Controller (PWM-PSR)

Overview

This third-generation Primary-Side-Regulation (PSR)and highly integrated PWM controller provides severalfeatures to enhance the performance of low-powerflyback converters. The proprietary topology,TRUECURRENT®, of FAN103W enables precise CCregulation and simplified circuit for battery chargerapplications. A low-cost, smaller and lighter chargerresults as compared to a conventional design or a lineartransformer.
To minimize standby power consumption, theproprietary green-mode function provides off-timemodulation to linearly decrease PWM frequency underlight-load conditions. This green mode assists the powersupply in meeting the power conservation requirement.
By using the FAN103W, a charger can be implementedwith few external components and minimized cost. Atypical output CV/CC characteristic envelope is shownin Figure 1.

Features

Low Standby Power Under 30mW
High Voltage Startup
Fewest External Component Counts
Constant-Voltage (CV) and Constant-Current (CC) Control without Secondary-Feedback Circuitry
Green-Mode Function: 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 8-Lead SOP Package

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FAN103WMY

Obsolete

SOIC-8

751EB

260

REEL

2500

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Controllers | FAN103W

Primary-Side-Regulation PWM Controller (PWM-PSR)

Overview

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