Overview
The TDK PCUP090D DC/AC inverter is a power conversion module engineered for 15-inch LCD display backlighting in industrial automation and CNC equipment. This inverter accepts DC input voltage and produces the high-frequency AC output required to drive cold cathode fluorescent lamps (CCFL) that illuminate LCD panels. The PCUP090D is widely used in operator panels, HMI displays, and factory automation systems where reliable backlight control is critical to system uptime.
Key Features
- Low-noise voltage resonant design minimizes electromagnetic interference in sensitive automation environments
- Regulated constant-current output ensures stable brightness across a range of lamp loads and operating conditions
- Compact PCB form factor fits standard mounting positions in control enclosures and panel displays
- Wide operating temperature range maintains performance in industrial temperature conditions
- Built-in protection features including open-circuit and short-circuit detection to prevent lamp damage
Technical Specifications
Key electrical and mechanical parameters are listed below. For detailed operating conditions, refer to the original equipment documentation or contact your system integrator.
Typical Applications
- Fanuc i operator panel 15-inch LCD backlight power supply
- Industrial CNC machine control panel display backlighting
- Manufacturing equipment HMI displays requiring CCFL lamp excitation
- Factory automation touchscreen and status panel illumination
- Replacement inverter for legacy industrial display systems
Compatibility & Replacements
Compatible With
- 15-inch LCD monitor panels with CCFL backlighting
- Industrial control systems and CNC equipment
- Fanuc i operator panels
- OEM display modules requiring DC-to-AC backlight conversion
Replaces / Drop-In Replacement For
The TDK PCUP090D directly replaces defective inverter units in 15-inch LCD monitors and industrial operator panels. Verify compatibility with your system integrator before ordering to confirm connector types and electrical specifications match your equipment.
Works With
- Cold cathode fluorescent lamp (CCFL) backlighting systems
- Industrial display modules and control panels
- Legacy CNC and factory automation equipment
- Standard DC power supplies (input voltage verification recommended)






















