Overview
The L6599DTR is a high-voltage resonant controller produced by STMicroelectronics. It is specifically designed for the resonant half-bridge topology and is suitable for various high-voltage applications. Although it is still in production, it is not recommended for new designs. The controller offers advanced features such as variable frequency control, high-accuracy oscillation, and robust protection mechanisms, making it a reliable choice for existing systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Frequency | Up to 500 | kHz |
| Duty Cycle | 50% Complementary | |
| High-Side Gate Driver Current | -300/800 | mA |
| Low-Side Gate Driver Current | -300/800 | mA |
| Input Voltage Range for Power-ON/OFF Sequencing | 0.3 to 3.5 | V |
| Thermal Resistance Junction to Ambient (DIP16) | 80 | °C/W |
| Thermal Resistance Junction to Ambient (SO16) | 120 | °C/W |
| Storage Temperature Range | -55 to 150 | °C |
| Junction Operating Temperature Range | -40 to 150 | °C |
| Recommended Max Power Dissipation @TA = 70°C (DIP16) | 1 | W |
| Recommended Max Power Dissipation @TA = 50°C (SO16) | 0.83 | W |
| Package Types | DIP-16, SO-16N |
Key Features
- High-accuracy oscillator with variable frequency control of resonant half-bridge topology.
- Two-level overcurrent protection (OCP): frequency-shift and latched shutdown.
- Interface with PFC controller.
- Latched disable input.
- Burst-mode operation at light load.
- Input for power-ON/OFF sequencing or brownout protection.
- Non-linear soft-start for monotonic output voltage rise.
- 600 V-rail compatible high-side gate driver with integrated bootstrap diode and high dV/dt immunity.
- UVLO pull-down for high-side and low-side gate drivers.
Applications
- LCD and PDP TVs.
- Desktop PCs and entry-level servers.
- Telecom SMPS.
- AC-DC adapters and open frame SMPS.
Q & A
- What is the L6599DTR used for? The L6599DTR is used as a high-voltage resonant controller for resonant half-bridge topology in various high-voltage applications.
- What are the key features of the L6599DTR? Key features include high-accuracy oscillator, two-level OCP, interface with PFC controller, latched disable input, burst-mode operation, and non-linear soft-start.
- What are the operating frequency and duty cycle of the L6599DTR? The operating frequency is up to 500 kHz, and the duty cycle is 50% complementary.
- What are the package types available for the L6599DTR? The L6599DTR is available in DIP-16 and SO-16N packages.
- What is the thermal resistance junction to ambient for DIP16 and SO16 packages? For DIP16, it is 80 °C/W, and for SO16, it is 120 °C/W.
- What are the recommended maximum power dissipation values for DIP16 and SO16 packages? For DIP16 at TA = 70°C, it is 1 W, and for SO16 at TA = 50°C, it is 0.83 W.
- What are some common applications of the L6599DTR? Common applications include LCD and PDP TVs, desktop PCs, telecom SMPS, and AC-DC adapters.
- Does the L6599DTR have built-in protection mechanisms? Yes, it includes two-level overcurrent protection (OCP) and UVLO pull-down for gate drivers.
- Is the L6599DTR recommended for new designs? No, it is not recommended for new designs, although it is still in production.
- What is the storage temperature range for the L6599DTR? The storage temperature range is -55 to 150 °C.
