This document is the customer acceptance specifications of Hitachi Lighting,Ltd's INVC818 backlight inverter
This document specifies the performance and design requirements for the Hitachi INVC818 backlight inverter used with cold‑cathode fluorescent lamps in LCD modules. It defines the scope, general specifications, electrical characteristics, reliability tests, mechanical structures and design precautions.
Key data include a nominal output power of 2.8 W (high) / 2.4 W (low), efficiency of at least 65 %, operating temperature range of 0 °C to 50 °C, and a maximum thickness of 8 mm. The specification also provides wiring diagrams, connector pinouts and detailed test conditions for temperature, humidity, vibration and impact.
| Output Power (High) | 2.8 W |
|---|---|
| Output Power (Low) | 2.4 W |
| Efficiency | ≥ 65 % |
| Weight | ≤ 10 g |
| Operating Ambient Temperature | 0 °C to 50 °C |
| Stock Temperature Range | -20 °C to 70 °C |
| Input Voltage Range | 7.0 V – 19.0 V (typical 12.0 V) |
| Input Current (High) | ≈ 350 mA at 12 V |
| Input Current (Low) | ≈ 310 mA at 12 V |
| Rush Current | 2.0 A at 12 V |
| Main Frequency | 25 kHz – 55 kHz |
| Dimming Range | 100 % – 50 % |
The inverter operates from 7.0 V to 19.0 V, with a typical input of 12.0 V.
The inverter provides a nominal output power of 2.8 W in high mode and 2.4 W in low mode.