Overview
The L6599AD, produced by STMicroelectronics, is an improved high-voltage resonant controller designed for series-resonant half-bridge topology. It is an enhanced version of the previous L6599 controller, offering several key improvements and features. The L6599AD is optimized for high-efficiency power conversion, synchronization, and protection, making it suitable for a variety of applications where energy efficiency and reliability are critical.
Key Specifications
| Attribute | Value |
|---|---|
| Package Style | SOIC-16N, DIP-16 |
| Mounting Method | Surface Mount |
| Supply Voltage Max | 16.0 V |
| Operating Frequency | Up to 500 kHz |
| Junction Operating Temperature Range | -40°C to 150°C |
| Storage Temperature Range | -55°C to 150°C |
| RoHS Compliance | Ecopack2 |
| ECCN US | EAR99 |
| ECCN EU | NEC |
Key Features
- 50% duty cycle, variable frequency control of resonant half bridge
- High-accuracy oscillator
- Up to 500 kHz operating frequency
- 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
- -300/800 mA high-side and low-side gate drivers with UVLO pull-down
Applications
- LCD and PDP TV
- Desktop PC, entry-level server
- Telecom SMPS
- High efficiency industrial SMPS
- AC-DC adapter, open frame SMPS
- Semiconductor manufacturing equipment
- Power supplies and converters
- Aerospace and defense systems
- Industrial automation systems
Q & A
- What is the L6599AD used for?
The L6599AD is a high-voltage resonant controller used for series-resonant half-bridge topology, optimized for high-efficiency power conversion, synchronization, and protection.
- What are the key features of the L6599AD?
Key features include 50% duty cycle, high-accuracy oscillator, up to 500 kHz operating frequency, two-level OCP, interface with PFC controller, and more.
- What are the typical applications of the L6599AD?
Typical applications include LCD and PDP TV, desktop PC, telecom SMPS, high efficiency industrial SMPS, AC-DC adapters, and industrial automation systems.
- What is the maximum operating frequency of the L6599AD?
The maximum operating frequency of the L6599AD is up to 500 kHz.
- What type of packaging is available for the L6599AD?
The L6599AD is available in SOIC-16N and DIP-16 packages.
- Does the L6599AD support burst mode operation?
- What is the purpose of the fixed deadtime in the L6599AD?
The fixed deadtime guarantees soft-switching and enables high-frequency operation.
- Is the L6599AD RoHS compliant?
- What is the maximum junction operating temperature of the L6599AD?
The maximum junction operating temperature is 150°C.
- Does the L6599AD have built-in protection features?
