L6565DTR Quasi-Resonant SMPS Controller IC – SOIC-8 Package
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. The 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 the current sense, an error amplifier with a precise reference voltage for primary regulation, and an effective two-level overcurrent protection.
Features:
- 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% presion (@ Tj = 25°C) integral reference voltage
- ±400mA Totem Pole Gate Driver with UVLO Pull-Down
- Blue Angle, Energy Star, Energy 2000 Complaint
Features/Specs:
- Manufacturer: STMicroelectronics
- Manufacturer Part No: L6565DTR
- Series: L6565
- Product Type: Switching Controllers
- Topology: Flyback
- Number of Outputs: 1 Output
- Switching Frequency: 70 kHz –
- Input Voltage: 10.3 V to 18 V
- Fall Time: 40 ns
- Rise Time: 40 ns
- Operating Supply Current: 3.5 mA
- Operating Supply Voltage: 10.3 V to 18 V
- Minimum Operating Temperature: -40°C
- Maximum Operating Temperature: +150°C
- Mounting Style: SMD/SMT
- Package/Case: SOIC-8
Application:
- TV/Monitor SMPS
- AC-DC Adapters/Chargers
- Digital Consumer
- Printers, FAX Machines, Photocopiers and Scanners
Datasheet: L6565
Package Includes:
- 1 x L6565DTR Quasi-Resonant SMPS Controller IC – SOIC-8 Package
Note: Product Images are shown for illustrative purposes only and may differ from actual product.
Reviews
There are no reviews yet.