Overview
The L6562DTR is a current-mode Power Factor Correction (PFC) controller developed by STMicroelectronics. It operates in Transition Mode (TM) and is pin-to-pin compatible with its predecessor, the L6561, offering improved performance. This controller is designed to enhance the efficiency and compliance of power supply systems, particularly in applications requiring high power factor and low total harmonic distortion (THD) of the AC input current.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| IC Supply Voltage | 10.3 to 22 | V |
| Startup Current | ≤ 70 µA | µA |
| Quiescent Current | ≤ 4 mA | mA |
| Internal Reference Voltage | 2.5 V ± 1% (@ Tj = 25 °C) | V |
| Totem Pole Gate Driver Current | -600/+800 mA | mA |
| Operating Temperature Range | -25 to 125 | °C |
| Package Type | SOIC-8 | - |
Key Features
- Realized in BCD technology
- Transition-mode control of PFC pre-regulators
- Proprietary multiplier design for minimum THD of AC input current
- Very precise adjustable output overvoltage protection
- Ultra-low startup current and low quiescent current
- Extended IC supply voltage range
- On-chip filter on current sense
- Disable function for remote ON/OFF control
- Totem pole gate driver with UVLO pull-down and voltage clamp
- DIP-8 and SO-8 packages available, with ECOPACK® 1.1 compliance
Applications
- PFC pre-regulators for IEC61000-3-2 compliant SMPS (TV, desktop PC, monitor) up to 300W
- High-end AC-DC adapters and chargers
- Entry-level servers and web servers
Q & A
- What is the operating mode of the L6562DTR?
The L6562DTR operates in Transition Mode (TM).
- What are the key benefits of the proprietary multiplier design in the L6562DTR?
The proprietary multiplier design minimizes the THD of the AC input current and reduces conduction dead-angle occurring near the zero-crossings of the line voltage.
- What is the range of the IC supply voltage for the L6562DTR?
The IC supply voltage range is from 10.3V to 22V.
- What is the quiescent current of the L6562DTR?
The quiescent current is less than or equal to 4 mA.
- What is the precision of the internal reference voltage at 25°C?
The internal reference voltage is 2.5V with a precision of ±1% at 25°C.
- What is the capability of the totem pole gate driver?
The totem pole gate driver can source up to 600 mA and sink up to 800 mA.
- What are the available package types for the L6562DTR?
The L6562DTR is available in DIP-8 and SO-8 packages.
- What are some of the applications for the L6562DTR?
Applications include PFC pre-regulators for IEC61000-3-2 compliant SMPS, high-end AC-DC adapters, and entry-level servers.
- How does the L6562DTR handle overvoltage protection?
The L6562DTR features a very precise adjustable output overvoltage protection with a two-step OVP mechanism.
- Is the L6562DTR compliant with any specific environmental standards?
Yes, it is compliant with ECOPACK® 1.1 standards.
