Overview
The L6564HTR, produced by STMicroelectronics, is a current-mode Power Factor Correction (PFC) controller operating in transition mode (TM). It is a compact version of the L6563S device, packaged in a 10-pin SSOP10 package. This controller is designed to provide high efficiency and compliance with various international standards such as EN61000-3-2 and JEITA-MITI. The L6564HTR features a highly linear multiplier and a special correction circuit to reduce crossover distortion, enabling wide-range mains operation with extremely low Total Harmonic Distortion (THD) even over a large load range.
Key Specifications
| Parameter | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | 10.3 | - | 22.5 | V |
| Turn-on Threshold (VCCOn) | 11 | 12 | 13 | V |
| Turn-off Threshold (VCCOff) | 8.7 | 9.5 | 10.3 | V |
| Start-up Current (Istart-up) | 90 | 150 | - | µA |
| Quiescent Current (Iq) | 4 | 5 | - | mA |
| Operating Supply Current (ICC) | 5 | 6.0 | - | mA |
| Gate Driver Output Current | -600 | - | +800 | mA |
| Internal Reference Voltage | - | 1% at TJ = 25 °C | - | - |
| Junction Temperature Range | -40 | - | 150 | °C |
Key Features
- Fast bidirectional input voltage feed-forward (1/V2 correction) for improved line transient response.
- Accurate adjustable output overvoltage protection and protection against feedback loop disconnection (latched shutdown).
- Inductor saturation protection and AC brownout detection.
- Low start-up current (≤ 100 µA) and low operating bias current (6 mA max.).
- 1% internal reference voltage accuracy at TJ = 25 °C.
- Totem pole gate driver with active pull-down during undervoltage lockout (UVLO), capable of -600/+800 mA.
- Compact 10-pin SSOP10 package.
Applications
- PFC preregulators 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 primary function of the L6564HTR? The L6564HTR is a current-mode Power Factor Correction (PFC) controller operating in transition mode (TM).
- What package type does the L6564HTR use? The L6564HTR is packaged in a 10-pin SSOP10 package.
- What are the key features of the L6564HTR? Key features include fast bidirectional input voltage feed-forward, overvoltage protection, inductor saturation protection, and a totem pole gate driver.
- What are the typical applications of the L6564HTR? Typical applications include PFC preregulators for high-end AC-DC adapters/chargers, desktop PCs, servers, and SMPS for LED luminaires.
- What standards does the L6564HTR comply with? The L6564HTR complies with EN61000-3-2 and JEITA-MITI standards.
- What is the operating supply current of the L6564HTR? The operating supply current is typically 6 mA.
- What is the internal reference voltage accuracy of the L6564HTR? The internal reference voltage accuracy is 1% at TJ = 25 °C.
- How does the L6564HTR protect against inductor saturation? The L6564HTR includes a protection mechanism that detects abnormal currents due to boost inductor saturation and temporarily stops the converter to limit stress on power components.
- What is the gate driver output current capability of the L6564HTR? The gate driver output is capable of -600/+800 mA.
- What is the junction temperature range of the L6564HTR? The junction temperature range is -40 to 150 °C.
