STMicroelectronics L6565 Quasi-Resonant SMPS Controller Datasheet

The L6565 is a current-mode primary controller IC, specifically designed to build offline Quasi-resonant ZVS (Zero Voltage Switching at switch turn-on) fly- back converters.

Brand: STMicroelectronics
Category: Other Electronics
Document type: Datasheet
Language: English
Pages: 17
File format: PDF
File size: 250 KB
Published: 10 August, 2012
Updated: 01 October, 2023
Model: L6565
MD5 checksum: AB395B6EADBE85F6A5C0DFB0920532BD
PDF: STMicroelectronics L6565 Quasi-Resonant SMPS Controller Datasheet PDF

About this manual

The L6565 is a current-mode primary controller IC specifically designed to build offline Quasi-resonant (QR) Zero-Voltage-Switching (ZVS) topologies. It features line feedforward to deliver constant power versus mains change and frequency foldback for optimum standby efficiency. The device is compliant with Blue Angel, Energy Star, and Energy Description 2000 standards.

What's inside

Description
Pin Connection
Pin Description
Thermal Data
Absolute Maximum Ratings
Electrical Characteristics
Application Information
Internal Supply Block

Specifications

Supply Voltage Operating Range	10.3 to 18 V
Quiescent Current	2.3 to 3.5 mA
Gate Driver Peak Current	400 mA
Junction Temperature Operating Range	-40 to 150 °C
Feedback Reference Voltage	2.5 V +/- 1%

Frequently asked questions

What happens if the signal at the CS pin exceeds 2 V?

The gate driver will be disabled, entering Hiccup-mode OCP.

What is the maximum junction temperature for the L6565?

The device operates with a junction temperature range of -40 to 150 °C.

What is the maximum peak current the gate driver output can deliver?

The totem pole output stage can drive MOSFETs with a peak current of 400 mA.

What is the typical quiescent current of the L6565 after turn-on?

The typical quiescent current after turn-on is 3.5 mA.

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