Controllers | FSEZ1317WA

Primary-Side-Regulation PWM with POWER MOSFET Integrated

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Overview

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 FSEZ1317WA enables precise CC regulation and simplified circuit design for battery-charger applications. A low-cost, smaller, and lighter charger results, as compared to a conventional design 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 FSEZ1317WA, a charger can be implemented with few external components and minimized cost.

  • E-book Reader
  • External AC-DC Merchant Power Supply - Portable Consumer
  • External AC-DC Merchant Power Supply - Wireless Communications
  • Media Tablets
  • Mobile Handsets
  • PMP/MP3 Player
  • PMP/MP3 Players
  • 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: 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 7-Lead SOP

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FSEZ1317WAMY

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Obsolete

CAD Model

Pb

A

H

P

SOIC-7

751ED

3

260

REEL

2500

N

Flyback

1

Current Mode

15

17

50

Price N/A

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