L6565 Quasi-resonant Controller
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
技术特性
- QUASI-RESONANT (QR) ZERO-VOLTAGE-SWITCHING (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 (< 70µA) 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
- TV/MONITOR SMPS
- AC-DC ADAPTERS/CHARGERS
- DIGITAL CONSUMER
- PRINTERS, FAX MACHINES, PHOTOCOPIERS AND SCANNERS
|
功能框图
 |
L6565 订购信息
| 订购型号 |
产品状态 |
美金价格 |
数量 |
封装 |
包装形式 |
温度范围 |
材料声明 |
| E-L6565N |
Active |
|
1000 |
DIP-8 |
Tube |
|
|
| L6565N |
Active |
|
1000 |
DIP-8 |
Tube |
|
|
| L6565D |
Active |
|
1000 |
SO-8 |
Tube |
|
|
| L6565DTR |
Active |
|
1000 |
SO-8 |
Tape And Reel |
|
|
DATASHEET
| 描述 |
版本 |
大小 |
| L6565 : DS2176: Quasi-resonant SMPS controller |
5 |
251KB |
DATA BRIEF
| 描述 |
版本 |
大小 |
| DB0530: 6 W 3-phase SMPS for metering evaluation board based on ESBT® |
1 |
80KB |
| DB0533: 30 W AC-DC adapter based on the L6565 |
1 |
98KB |
| DB0563: 10 W 3-phase auxiliary power supply based on the L6565 and STW3N150 |
1 |
153KB |
APPLICATION NOTES
| 描述 |
版本 |
大小 |
| AN2528: Very wide input voltage range 6 W SMPS for metering |
1 |
865KB |
| AN2487: STEVAL-TSP001V1 power over Ethernet powered device demonstration board |
2 |
873KB |
| AN1657: SMPS for CRT monitors with the L6565 |
1 |
162KB |
| AN1326: L6565 quasi-resonant controller |
7 |
544KB |
| AN1729: L6565-based low cost SMPS for TV with less then 1W standby consumption |
1 |
198KB |
| AN1439: 30 W AC-DC adapter with the L6565 quasi-resonant PWM controller |
7 |
307KB |
| AN1376: 25W quasi-resonant flyback converter for set-top box application using the L6565 |
2 |
1842KB |
| AN2844: 15 W wide range SMPS for metering based on ESBT™ STC03DE220HV and L6565 PWM controller |
1 |
1480KB |
| AN2936: 10 W SMPS with HV power MOSFET and the L6565 for three-phase industrial applications |
1 |
303KB |
USER MANUALS
| 描述 |
版本 |
大小 |
| UM0584: STEVAL-ISA031V1: 40 W SMPS with HV MOSFET and L6565 for three-phase industrial applications |
1 |
400KB |
PRODUCT PRESENTATIONS
BOARDS AND TOOLS
| 型号 |
描述 |
| STEVAL-ISA030V1 |
6 W 3-phase SMPS for metering evaluation board based on ESBT® |
| STEVAL-ISA031V1 |
Demonstration board for 40 W auxiliary 3-phase power supply based on the L6565 and STW4N150 |
| STEVAL-ISA057V1 |
15 W wide range SMPS for metering based on the ESBT? STC03DE220HV and L6565 PWM controller |
| STEVAL-ISA034V1 |
10 W 3-phase auxiliary power supply based on the L6565 and STW3N150 |
| STEVAL-ISC001V1 |
30 W AC-DC adapter based on the L6565 |
| STEVAL-ISA019V3 |
80 W ESBT quasi-resonant wide-range SMPS demonstration board based on the L6565 for 3-phase applications |
FLYERS
| 描述 |
版本 |
大小 |
| FLSMPSLED1011 : 48 V, 130 W high-efficiency SMPS for LED street lighting |
1.0.0 |
257KB |
