BD9470EFV LED Driver IC ROHM Backlight Controller

The BD9470EFV Charging / LED Driver IC is a robust boost-type LED backlight controller designed to power large LED strings used in LCD televisions, monitors, digital signage panels, billboards, and high-power lighting systems. ROHM engineered this IC for long-term stability with constant current regulation, ensuring uniform LED brightness and efficient illumination across the display.

With built-in protection circuits such as OVP, OCP, short/open LED detection, the BD9470EFV delivers reliable operation even under demanding environmental or load conditions. Its boost-converter architecture enables high-voltage LED strings to be driven from lower supply voltages, making it well-suited for modern LCD backlight architectures.

In repair environments, this IC is commonly used for fixing no-backlight, dim display, flickering, or LED power failure issues in TVs and monitors. Thanks to its stability and safety features, it is also used in automotive lighting, industrial signage, and high-power illumination modules.

At OKSpare Nehru Place, the BD9470EFV is available in ready stock for both wholesale and retail LED driver repair needs. Each IC is quality tested to ensure reliable performance for technicians and manufacturers.

• Manufacturer: ROHM Semiconductor
• Type: LED Driver IC / Backlight Controller
• Function: Drives large LED arrays using boost-conversion and constant current control
• Protections: OVP (Over-Voltage), OCP (Over-Current), short-circuit, open-LED detection
• Applications: LCD TV backlight, monitors, digital signage, automotive lighting, industrial displays
• Performance: High-efficiency boost converter with precise LED current regulation
• Package: EFV-series surface-mount IC