Anterwell Technology Ltd.

          Anterwell Technology Ltd.


Large Original stock of IC Electronics Components, Transistors, Diodes etc.

High Quality, Reasonable Price, Fast Delivery.

About Us
Factory Tour
Quality Control
Contact Us
Request A Quote
Home ProductsIntegrated Circuit Chip

L6566BTR Integratedcircuits , Ic Electronic Components Multi mode controller for SMPS

Good quality Programmable IC Chips for sales
Good quality Programmable IC Chips for sales
We have cooperate with Anterwell near 7 years. always very good quality good service. Original and very fast delivery. A very good partner.

—— Clemente From Brzail

I'm doing business with Anterwell from 2006, from small to big orders. Reliable!

—— Ingalill From Sweden

Sharon is a very good girl, we are very happy to cooperate with her. Competitive price and professional. Never have quality problem with them.

—— Alfredo From USA

We always buy XILINX parts from Anterwell. High quality with good price. Hope can have more business with you.

—— Mr Babak From Iran

I'm Online Chat Now

L6566BTR Integratedcircuits , Ic Electronic Components Multi mode controller for SMPS

China L6566BTR Integratedcircuits , Ic Electronic Components Multi mode controller for SMPS supplier

Large Image :  L6566BTR Integratedcircuits , Ic Electronic Components Multi mode controller for SMPS

Product Details:

Place of Origin: original factory
Brand Name: Anterwell
Certification: new & original
Model Number: L6566BTR

Payment & Shipping Terms:

Minimum Order Quantity: 20pcs
Price: Negotiate
Packaging Details: Please contact me for details
Delivery Time: 1 day
Payment Terms: T/T, Western Union, Paypal
Supply Ability: 6900pcs
Contact Now
Detailed Product Description
Voltage Range (referred To Ground): -0.3 To 700 V Voltage Range: -0.3 To 2 V
Analog Inputs And Outputs: -0.3 To 7 V Zero Current Detector Max. Current: ±5 MA
Storage Temperature: -55 To 150 °C Junction Operating Temperature: -40 To 150 °C
High Light:

electronics ic chip


integrated circuit ic


L6566BTR Integratedcircuits , Ic Electronic Components Multi mode controller for SMPS




■ Selectable multi-mode operation: fixed frequency or quasi-resonant

■ On-board 700 V high-voltage start-up

■ Advanced light load management

■ Low quiescent current (< 3 mA)

■ Adaptive UVLO

■ Line feedforward for constant power capability vs mains voltage


■ Pulse-by-pulse OCP, shutdown on overload (latched or autorestart)

■ Transformer saturation detection

■ Programmable frequency modulation for EMI reduction

■ Latched or autorestart OVP

■ Brownout protection

■ -600/+800 mA totem pole gate driver with active pull-down during UVLO

■ SO16N package


Applications L6566BTR Integratedcircuits , Ic Electronic Components Multi mode controller for SMPS


■ Hi-end AC-DC adapter/charger

■ LCD TV/monitor, PDP

■ digital consumer, IT equipment

■ single-stage PFC



The L6566B is an extremely versatile current-mode primary controller ICs, specifically designed for high-performance offline flyback converters. It is also suited for single-stage single-switch input-current-shaping converters (single-stage PFC) for applications supposed to comply with EN61000-3-2 or JEITA-MITI regulations.


Both fixed-frequency (FF) and quasi-resonant (QR) operation are supported. The user can pick either of the two depending on application needs. The device features an externally programmable oscillator: it defines converter’s switching frequency in FF mode and the maximum allowed switching frequency in QR mode.


When FF operation is selected, the ICs work like a standard current-mode controller with a maximum duty cycle limited at 70 % min. The oscillator frequency can be modulated to mitigate EMI emissions.


QR operation, when selected, occurs at heavy load and is achieved through a transformer demagnetization sensing input that triggers MOSFET’s turn-on. Under some conditions, ZVS (zero-voltage switching) can be achieved. Converter’s power capability rise with the mains voltage is compensated by line voltage feedforward. At medium and light load, as the QR operating frequency equals the oscillator frequency, a function (valley skipping) is activated to prevent further frequency rise and keep the operation as close to ZVS as possible.


With either FF or QR operation, at very light load the ICs enter a controlled burst-mode operation that, along with the built-in non-dissipative high-voltage start-up circuit and the low quiescent current, helps keep low the consumption from the mains and meet energy saving recommendations.


An innovative adaptive UVLO helps minimize the issues related to the fluctuations of the self-supply voltage due to transformer’s parasites.


The protection functions included in this device are: not-latched input undervoltage (brownout), output OVP (auto-restart or latch-mode selectable), a first-level OCP with delayed shutdown to protect the system during overload or short circuit conditions (autorestart or latch-mode selectable) and a second-level OCP that is invoked when the transformer saturates or the secondary diode fails short. A latched disable input allows easy implementation of OTP with an external NTC, while an internal thermal shutdown prevents IC overheating.


Programmable soft-start, leading-edge blanking on the current sense input for greater noise immunity, slope compensation (in FF mode only), and a shutdown function for externally controlled burst-mode operation or remote ON/OFF control complete the equipment of this device.


Absolute maximum ratings

Symbol Pin Parameter Value Unit
VHVS 1 Voltage range (referred to ground) -0.3 to 700 V
IHVS 1 Output current Self-limited  
VCC 5 IC supply voltage (Icc = 20 mA) Self-limited  
VFMOD 6 Voltage range -0.3 to 2 V
Vmax 7, 8, 10, 14 Analog inputs and outputs -0.3 to 7 V
Vmax 9, 15, 16 Maximum pin voltage (Ipin ≤ 1 mA) Self-limited  
IZCD 11 Zero current detector max. current ±5 mA
VMODE/SC 12 Voltage range -0.3 to 3.3 V
VOSC 13 Voltage range -0.3 to 3.3 V
PTOT   Power dissipation @TA = 50 °C 0.75 W
TSTG   Storage temperature -55 to 150 °C
TJ   Junction operating temperature range -40 to 150 °C


Typical system block diagram

L6566BTR Integratedcircuits , Ic Electronic Components Multi mode controller for SMPS





Stock Offer (Hot Sell)

Part No. Quantity Brand D/C Package


KS8721B 4503 KENDIN 14+ SSOP
KSA1156YS 100000 FAIRCHILD 08+ TO-126
KSH112TM 91000 FSC 15+ TO-252
KSH117TM 92000 FSC 16+ TO-252
KSZ8041NL-TR 4934 MICREL 16+ QFN
KSZ8081RNBIA 3640 MICREL 15+ QFN32
KSZ8863MLL 5131 MICREL 12+ LQFP-48
KTB1124-B-RTF 37000 KEC 15+ SOT-89
L298P 1883 ST 15+ HSOP20
L2G2ISTR 1834 ST 15+ LGA
L3G4200DTR 5953 ST 14+ LGA
L4940V5 9380 ST 16+ TO-220
L4947H-5 14461 STMicroe 16+ TO-220
L4959 1785 ST 13+ ZIP-11
L4974A 2539 ST 14+ DIP-20
L4978D013TR 8592 ST 04+ SOP-16
L5970D013TR 18729 ST 14+ SOP-8
L5973D013TR 13944 ST 16+ SOP-8
L6008D8 4174 LITTELFUS 15+ TO-252
L6205PD 7436 ST 13+ HSOP-20
L6205PD013TR 2694 ST 16+ HSOP20
L6208PD 3051 ST 15+ HSOP36
L6225DTR 7432 ST 16+ SOP-20
L6562N 21427 ST 15+ DIP-8
L6566BTR 6572 ST 14+ SOP-16
L6574 14532 ST 05+ DIP-16
L6598D 11692 ST 16+ SOP-16

Contact Details
Anterwell Technology Ltd.

Contact Person: Miss. Sharon Yang

Tel: 86-755-61169882

Fax: 86-755-613169859

Send your inquiry directly to us (0 / 3000)