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L6565 IC – (SMD Package) – Quasi-Resonant SMPS Controller IC

SKU: RW-02189

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Description

The L6565 is a current-mode primary controller IC, specifically designed to build offline Quasi-resonant ZVS (Zero Voltage Switching at switch turn-on) flyback converters. Quasi-resonant operation is achieved by means of a transformer demagnetization sensing input that triggers MOSFET’s turn-on.

Converter’s power capability variations with the mains voltage are compensated by line voltage feedforward. At light load the device features a special function that automatically lowers the operating frequency still maintaining the operation as close to ZVS as possible. In addition to very low start-up and quiescent currents, this
feature helps keep low the consumption from the mains at light load and be Blue Angel and Energy Star compliant.

The IC includes also a disable function, an on-chip filter on current sense, an error amplifier with a precise reference voltage for primary regulation and an effective two-level overcurrent protection.

Features of L6565 IC:-
  • QUASI-RESONANT (QR) ZERO-VOLTAGESWITCHING (ZVS) TOPOLOGY
  • LINE FEED FORWARD TO DELIVER CONSTANT POWER vs. MAINS CHANGE
  • FREQUENCY FOLDBACK FOR OPTIMUM STANDBY EFFICIENCY
  • PULSE-BY-PULSE & HICCUP-MODE OCP
  • ULTRA-LOW START-UP (< 70?A) AND QUIESCENT CURRENT (< 3.5mA)
  • DISABLE FUNCTION (ON/OFF CONTROL)
  • 1% PRECISION (@ Tj = 25?C) INTERNAL REFERENCE VOLTAGE
  • ?400mA TOTEM POLE GATE DRIVER WITH UVLO PULL-DOWN
  • BLUE ANGEL, ENERGY STAR, ENERGY 2000 COMPLIANT

Applications of L6565 IC:-
  • TV/MONITOR SMPS
  • AC-DC ADAPTERS/CHARGERS
  • DIGITAL CONSUMER
  • PRINTERS, FAX MACHINES, PHOTOCOPIERS AND SCANNERS

Additional information

Operating voltage

2.5 3.0V

Pixel Resolution

0.3MP

Photosensitive array

640 x 480

Optical Size

1.6 inch

Angel of view

67 degrees

Maximum Frame Rate

30fps VGA

Sensitivity

1.3V/(Lux-sec)

Dormancy

Less than 20A

Power consumption

60mW/15fpsVGA YUV

Temperature operation Range

-30 C ~ 70 C

Pixel area

3.6 x 3.6 m

Signal to noise ratio (SNR)

46 dB

Dynamic range

52 dB

Specification

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