Controllers | FAN103W

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

Obsolete

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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.

  • 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
  • VDD Over-Voltage Protection with Auto Restart
  • VDD 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

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Obsolete

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CAD Model

Pb

A

H

P

SOIC-8

751EB

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260

REEL

2500

N

Flyback

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Current Mode

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Reliability Data

Die Related Summary Data

Device: FAN103WMY

Equivalent to wafer fab process: CN

Product Technology

Product Technology

Equivalent Device-Hours

MTBF/MTTF in Hours

FITS

CN

6

425600109

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Re-calculate Data

Data is based on the following assumptions.

Note: The temperature and confidence level may be adjusted to your requirements.

Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)

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