Overview
The L6598D013TR, produced by STMicroelectronics, is a high-voltage resonant controller designed for use in AC/DC adapters and other applications where resonant topology is beneficial. This device is manufactured using BCD™ offline technology, enabling it to handle voltage ratings up to 600 V. It is intended to drive two power MOSFETs in a classical half-bridge topology, providing features such as soft-start frequency shifting, integrated bootstrap diode, and clamping on the low voltage supply. The L6598D013TR is available in DIP16 and SO16 packages, making it versatile for various design needs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (Vs) | 10 to Vcl | V |
| High Side Reference (Vout) | -1 to Vboot - Vcl | V |
| Floating Supply Rail (Vboot) | Up to 580 V | V |
| Maximum Switching Frequency | 400 kHz | kHz |
| High Side Driver Source/Sink Current | 250/450 mA | mA |
| Low Side Driver Source/Sink Current | 250/450 mA | mA |
| Rise/Fall Time (with 1 nF load) | 80/40 ns | ns |
| Deadtime between Low and High Side Conduction | 0.2 to 0.35 µs | µs |
| Thermal Resistance Junction to Ambient (SO16N/DIP16) | 120/80 °C/W | °C/W |
| Storage Temperature | -40 to +150 °C | °C |
| Ambient Temperature | -40 to +125 °C | °C |
Key Features
- High voltage rail up to 600 V
- dV/dt immunity ±50 V/ns in full temperature range
- Integrated bootstrap diode and Zener clamping on low voltage supply
- Soft-start frequency shifting timing
- Sense op amp for closed loop control or protection features
- High accuracy current controlled oscillator
- CMOS shutdown input and undervoltage lockout
- Two CMOS comparators for protection schemes
- Available in DIP16 and SO16 packages
Applications
The L6598D013TR is suitable for a variety of applications, including:
- AC/DC adapters
- Resonant converters
- High-voltage power supplies
- Switch-mode power supplies requiring high voltage and high efficiency
Q & A
- What is the maximum voltage rating of the L6598D013TR?
The L6598D013TR has a maximum voltage rating of up to 600 V. - What is the purpose of the integrated bootstrap diode?
The integrated bootstrap diode is used to supply the high voltage section of the device, eliminating the need for an external high voltage fast recovery diode. - What are the typical rise and fall times of the L6598D013TR with a 1 nF load?
The typical rise and fall times are 80 ns and 40 ns, respectively. - How does the soft-start function work in the L6598D013TR?
The soft-start function involves a period where the switching frequency shifts from the start frequency to the minimum frequency, controlled by a capacitor and a transconductance amplifier. - What are the thermal resistance values for the SO16N and DIP16 packages?
The thermal resistance values are 120 °C/W for SO16N and 80 °C/W for DIP16. - What is the role of the sense op amp in the L6598D013TR?
The sense op amp is used for closed loop control or protection features, allowing adjustment of the oscillation frequency. - How do the CMOS comparators function in the L6598D013TR?
The CMOS comparators are used for protection schemes, recognizing short pulses and enabling or disabling the device based on threshold values. - What are the storage and ambient temperature ranges for the L6598D013TR?
The storage temperature range is -40 to +150 °C, and the ambient temperature range is -40 to +125 °C. - In what packages is the L6598D013TR available?
The L6598D013TR is available in DIP16 and SO16 packages. - What is the typical quiescent current of the L6598D013TR?
The typical quiescent current is 2 to 3 mA at a switching frequency of 60 kHz and no load.
