The BD9264EFV is a system power supply IC manufactured by Rohm Semiconductor. This component is specifically designed for power supply solutions in LCD panels, particularly for large-sized TVs and monitors. It efficiently generates the various voltage rails required by LCD panels, integrating multiple DC-DC converters and control functions.
Applications:
- Power supply for LCD TVs
- Power supply for LCD monitors
- Power supply for large-sized displays
- Power supply for industrial displays
- General power management for display applications
Features:
- Multiple DC-DC converters for different voltage rails
- Integrated boost converter for AVDD generation
- Gate driver for VGH and VGL generation
- Overvoltage protection (OVP)
- Overcurrent protection (OCP)
Benefits:
- Efficient power generation for LCD panels
- Reduced component count and board space
- Simplified power supply design
- Improved system reliability due to integrated protection features
- Optimized for large-sized displays
The BD9264EFV is designed to provide a stable and efficient power supply solution for LCD panels. It includes all the necessary functions to generate the AVDD, VGH, and VGL voltages required by the panel. Its integrated protection features help safeguard against potential damage from voltage fluctuations, overcurrent conditions, and other abnormal operating conditions.
Technical Specifications:
Typical specifications include an input voltage range from 9V to 13.2V, multiple output voltages optimized for LCD panel requirements, a switching frequency in the hundreds of kHz range, and various control inputs for power sequencing and protection. It often integrates a soft-start function to reduce inrush current during startup. Detailed electrical characteristics, thermal resistance, and package dimensions are provided in the Rohm Semiconductor datasheet. PCB layout considerations are critical for minimizing noise and ensuring stable operation of the power supply. Special attention should be paid to the placement of decoupling capacitors and the routing of high-current traces. Proper thermal management, including heatsinking, may be required for high-power applications.
