L6565N

Duty Cycle (Max) :
Number of Outputs : 1
Mounting Style : Through Hole
Maximum Operating Temperature : + 150 C
Rise Time : 40 ns
Package / Case : PDIP-8
Operating Supply Current : 3.5 mA
Fall Time : 40 ns
Switching Frequency : 70 KHz
Operating Supply Voltage : 10.3 V to 18 V


Features:

` 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 (< 70A) AND QUIESCENT CURRENT (< 3.5mA)
` DISABLE FUNCTION (ON/OFF CONTROL)
` 1% PRECISION (@ T<sub>j</sub> = 25°C) INTERNAL REFERENCE VOLTAGE
` ±400mA TOTEM POLE GATE DRIVER WITH UVLO PULL-DOWN
` BLUE ANGEL, ENERGY STAR, ENERGY 2000 COMPLIANT



Application

· TV/MONITOR SMPS
· AC-DC ADAPTERS/CHARGERS
· DIGITAL CONSUMER
· PRINTERS, FAX MACHINES, PHOTOCOPIERS AND SCANNERS


Pinout




Specifications

Symbol	Pin	Parameter	Value	Unit
IVcc	8	ICC + IZ	30	mA
IGD	7	Output Totem Pole Peak Current (2 s)	±700	mA
INV, COMP, VFF, CS	1, 2, 3 4	Analog Inputs & Outputs	-0.3 to 7	V
IZCD	5	Zero Current Detector	50 (source) -10 (sink)	mA
Ptot		Power Dissipation @Tamb = 50 °C (Minidip) (SO8)	1 0.65	W
Tj		Junction Temperature Operating range	-40 to 150	°C
Tstg		Storage Temperature	-55 to 150	°C

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.