Overview
The L6564TDTR is a current-mode Power Factor Correction (PFC) controller from STMicroelectronics, designed to operate in transition mode (TM). It is a compact version of the L6563S, integrating the same driver, reference, and control stages into a 10-pin SSOP package. This controller is optimized for high-end AC-DC applications, including desktop PCs, servers, and LED luminaires, ensuring compliance with standards such as EN61000-3-2 and JEITA-MITI.
Key Specifications
| Parameter | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|
| Supply Voltage (Vcc) | 10.3 | - | 22.5 | V |
| Turn-on Threshold (VccOn) | 11 | 12 | 13.2 | V |
| Turn-off Threshold (VccOff) | 8.7 | 9.5 | 10.5 | V |
| Startup Current (Istart-up) | 90 | 180 | - | µA |
| Quiescent Current (Iq) | 4 | 5.5 | - | mA |
| Gate Driver Output Current | -600 | - | +800 | mA |
| Junction Temperature Range | -40 | - | 150 | °C |
| Storage Temperature Range | -55 | - | 150 | °C |
Key Features
- Guaranteed operation over an extreme temperature range, making it suitable for outdoor applications.
- Fast bi-directional input voltage feedforward (1/V2 correction) for improved line transient response.
- Accurate adjustable output overvoltage protection and protection against feedback loop disconnection.
- Inductor saturation protection and AC brownout detection.
- Low startup current (≤ 100 µA) and low operating bias current (≤ 6 mA).
- 1% accurate internal reference voltage at TJ = 25 °C.
- Totem-pole gate driver with active pull-down during undervoltage lockout (UVLO), capable of driving high power MOSFETs and IGBTs.
- Compact SSOP10 package.
Applications
- PFC pre-regulators for high-end AC-DC adapters/chargers, desktop PCs, servers, and web servers.
- SMPS for LED luminaires.
- Compliant with EN61000-3-2 and JEITA-MITI standards.
Q & A
- What is the L6564TDTR and how does it operate?
The L6564TDTR is a current-mode PFC controller operating in transition mode (TM). It integrates the driver, reference, and control stages in a compact 10-pin SSOP package.
- What are the key features of the L6564TDTR?
Key features include fast bi-directional input voltage feedforward, accurate adjustable output overvoltage protection, inductor saturation protection, and a totem-pole gate driver capable of driving high power MOSFETs and IGBTs.
- What are the typical applications of the L6564TDTR?
Typical applications include PFC pre-regulators for high-end AC-DC adapters/chargers, desktop PCs, servers, and SMPS for LED luminaires.
- What standards does the L6564TDTR comply with?
The L6564TDTR complies with EN61000-3-2 and JEITA-MITI standards.
- What is the operating temperature range of the L6564TDTR?
The junction temperature range is -40°C to 150°C, and the storage temperature range is -55°C to 150°C.
- What is the supply voltage range for the L6564TDTR?
The supply voltage range is from 10.3V to 22.5V.
- What is the startup current of the L6564TDTR?
The startup current is ≤ 100 µA.
- How does the L6564TDTR protect against overvoltage and feedback loop failures?
The IC provides accurate adjustable output overvoltage protection and protection against feedback loop disconnection, which can latch the device off in case of failure.
- What is the gate driver output current capability of the L6564TDTR?
The totem-pole gate driver is capable of a 600 mA source and 800 mA sink current.
- How does the L6564TDTR handle inductor saturation and AC brownout conditions?
The IC includes protection functions for inductor saturation and AC brownout detection to ensure safe operation under these conditions.
